[PATCH v8 0/2] MR3106: coml2: Move remaining storage functions from ole32
-- v8: coml2: Move storage functions from ole32 coml2: Add tests for propertytovariant and varianttoproperty ordinals https://gitlab.winehq.org/wine/wine/-/merge_requests/3106
From: Fabian Maurer <dark.shadow4(a)web.de> --- configure.ac | 1 + dlls/coml2/tests/Makefile.in | 5 + dlls/coml2/tests/propvariant.c | 194 +++++++++++++++++++++++++++++++++ 3 files changed, 200 insertions(+) create mode 100644 dlls/coml2/tests/Makefile.in create mode 100644 dlls/coml2/tests/propvariant.c diff --git a/configure.ac b/configure.ac index 26bcc3f6c21..ae9803ee761 100644 --- a/configure.ac +++ b/configure.ac @@ -2447,6 +2447,7 @@ WINE_CONFIG_MAKEFILE(dlls/comctl32/tests) WINE_CONFIG_MAKEFILE(dlls/comdlg32) WINE_CONFIG_MAKEFILE(dlls/comdlg32/tests) WINE_CONFIG_MAKEFILE(dlls/coml2) +WINE_CONFIG_MAKEFILE(dlls/coml2/tests) WINE_CONFIG_MAKEFILE(dlls/comm.drv16,enable_win16) WINE_CONFIG_MAKEFILE(dlls/commdlg.dll16,enable_win16) WINE_CONFIG_MAKEFILE(dlls/compobj.dll16,enable_win16) diff --git a/dlls/coml2/tests/Makefile.in b/dlls/coml2/tests/Makefile.in new file mode 100644 index 00000000000..5d846f07b27 --- /dev/null +++ b/dlls/coml2/tests/Makefile.in @@ -0,0 +1,5 @@ +TESTDLL = coml2.dll +IMPORTS = ole32 oleaut32 + +SOURCES = \ + propvariant.c diff --git a/dlls/coml2/tests/propvariant.c b/dlls/coml2/tests/propvariant.c new file mode 100644 index 00000000000..46ebe0304a2 --- /dev/null +++ b/dlls/coml2/tests/propvariant.c @@ -0,0 +1,194 @@ +/* + * PropVariant Tests + * + * Copyright 2023 Fabian Maurer + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#define COBJMACROS + +#include "windows.h" +#include "wtypes.h" +#include "ddeml.h" + +#include "wine/test.h" + +struct _PMemoryAllocator_vtable { + void *Allocate; /* virtual void* Allocate(ULONG cbSize); */ + void *Free; /* virtual void Free(void *pv); */ +}; + +typedef struct _PMemoryAllocator { + struct _PMemoryAllocator_vtable *vt; +} PMemoryAllocator; + +static void * WINAPI PMemoryAllocator_Allocate(PMemoryAllocator *_this, ULONG cbSize) +{ + return CoTaskMemAlloc(cbSize); +} + +static void WINAPI PMemoryAllocator_Free(PMemoryAllocator *_this, void *pv) +{ + CoTaskMemFree(pv); +} + +#ifdef __i386__ + +#include "pshpack1.h" +typedef struct +{ + BYTE pop_eax; /* popl %eax */ + BYTE push_ecx; /* pushl %ecx */ + BYTE push_eax; /* pushl %eax */ + BYTE jmp_func; /* jmp $func */ + DWORD func; +} THISCALL_TO_STDCALL_THUNK; +#include "poppack.h" + +static THISCALL_TO_STDCALL_THUNK *wrapperCodeMem = NULL; + +static void fill_thunk(THISCALL_TO_STDCALL_THUNK *thunk, void *fn) +{ + thunk->pop_eax = 0x58; + thunk->push_ecx = 0x51; + thunk->push_eax = 0x50; + thunk->jmp_func = 0xe9; + thunk->func = (char*)fn - (char*)(&thunk->func + 1); +} + +static void setup_vtable(struct _PMemoryAllocator_vtable *vtable) +{ + wrapperCodeMem = VirtualAlloc(NULL, 2 * sizeof(*wrapperCodeMem), + MEM_COMMIT, PAGE_EXECUTE_READWRITE); + + fill_thunk(&wrapperCodeMem[0], PMemoryAllocator_Allocate); + fill_thunk(&wrapperCodeMem[1], PMemoryAllocator_Free); + + vtable->Allocate = &wrapperCodeMem[0]; + vtable->Free = &wrapperCodeMem[1]; +} + +#else + +static void setup_vtable(struct _PMemoryAllocator_vtable *vtable) +{ + vtable->Allocate = PMemoryAllocator_Allocate; + vtable->Free = PMemoryAllocator_Free; +} + +#endif + +static const char serialized_i4[] = { + 3,0, /* VT_I4 */ + 0,0, /* padding */ + 0xef,0xcd,0xab,0xfe +}; + +static void test_propertytovariant(void) +{ + HANDLE hcoml2; + BOOLEAN (__stdcall *pStgConvertPropertyToVariant)(const SERIALIZEDPROPERTYVALUE*,USHORT,PROPVARIANT*,PMemoryAllocator*); + PROPVARIANT propvar; + PMemoryAllocator allocator; + struct _PMemoryAllocator_vtable vtable; + BOOLEAN ret; + + hcoml2 = LoadLibraryA("coml2"); + + if (!hcoml2) + { + win_skip("coml2 not available\n"); + return; + } + + pStgConvertPropertyToVariant = (void*)GetProcAddress(hcoml2, MAKEINTRESOURCEA(5)); + + if (!pStgConvertPropertyToVariant) + { + win_skip("StgConvertPropertyToVariant not available\n"); + return; + } + + setup_vtable(&vtable); + allocator.vt = &vtable; + + ret = pStgConvertPropertyToVariant((SERIALIZEDPROPERTYVALUE*)serialized_i4, + CP_WINUNICODE, &propvar, &allocator); + + ok(ret == 0, "StgConvertPropertyToVariant returned %i\n", ret); + ok(propvar.vt == VT_I4, "unexpected vt %x\n", propvar.vt); + ok(propvar.lVal == 0xfeabcdef, "unexpected lVal %lx\n", propvar.lVal); +} + +static void test_varianttoproperty(void) +{ + HANDLE hcoml2; + PROPVARIANT propvar; + SERIALIZEDPROPERTYVALUE *propvalue, *own_propvalue; + SERIALIZEDPROPERTYVALUE* (__stdcall *pStgConvertVariantToProperty)( + const PROPVARIANT*,USHORT,SERIALIZEDPROPERTYVALUE*,ULONG*,PROPID,BOOLEAN,ULONG*); + ULONG len; + + hcoml2 = LoadLibraryA("coml2"); + + if (!hcoml2) + { + win_skip("coml2 not available\n"); + return; + } + + pStgConvertVariantToProperty = (void*)GetProcAddress(hcoml2, MAKEINTRESOURCEA(4)); + + if (!pStgConvertVariantToProperty) + { + win_skip("StgConvertVariantToProperty not available\n"); + return; + } + + own_propvalue = malloc(sizeof(SERIALIZEDPROPERTYVALUE) + 20); + + PropVariantInit(&propvar); + + propvar.vt = VT_I4; + propvar.lVal = 0xfeabcdef; + + len = 0xdeadbeef; + propvalue = pStgConvertVariantToProperty(&propvar, CP_WINUNICODE, NULL, &len, 0, FALSE, 0); + + ok(propvalue == NULL, "got nonnull propvalue\n"); + todo_wine ok(len == 8, "unexpected length %ld\n", len); + + if (len == 0xdeadbeef) + { + free(own_propvalue); + return; + } + + len = 20; + propvalue = pStgConvertVariantToProperty(&propvar, CP_WINUNICODE, own_propvalue, &len, 0, FALSE, 0); + + ok(propvalue == own_propvalue, "unexpected propvalue %p\n", propvalue); + ok(len == 8, "unexpected length %ld\n", len); + ok(!memcmp(propvalue, serialized_i4, 8), "got wrong data\n"); + + free(own_propvalue); +} + +START_TEST(propvariant) +{ + test_propertytovariant(); + test_varianttoproperty(); +} -- GitLab https://gitlab.winehq.org/wine/wine/-/merge_requests/3106
From: Fabian Maurer <dark.shadow4(a)web.de> --- dlls/coml2/Makefile.in | 6 +- dlls/coml2/coml2.spec | 22 +- dlls/{ole32 => coml2}/dictionary.c | 0 dlls/{ole32 => coml2}/dictionary.h | 0 dlls/{ole32 => coml2}/filelockbytes.c | 0 dlls/coml2/stg_prop.c | 3080 +++++++++ dlls/{ole32 => coml2}/stg_stream.c | 0 dlls/coml2/storage32.c | 8941 +++++++++++++++++++++++++ dlls/{ole32 => coml2}/storage32.h | 7 - dlls/ole32/Makefile.in | 4 - dlls/ole32/clipboard.c | 5 +- dlls/ole32/defaulthandler.c | 3 +- dlls/ole32/ole32.spec | 2 +- dlls/ole32/stg_prop.c | 3136 --------- dlls/ole32/storage32.c | 8938 ------------------------ 15 files changed, 12043 insertions(+), 12101 deletions(-) rename dlls/{ole32 => coml2}/dictionary.c (100%) rename dlls/{ole32 => coml2}/dictionary.h (100%) rename dlls/{ole32 => coml2}/filelockbytes.c (100%) rename dlls/{ole32 => coml2}/stg_stream.c (100%) rename dlls/{ole32 => coml2}/storage32.h (98%) delete mode 100644 dlls/ole32/stg_prop.c diff --git a/dlls/coml2/Makefile.in b/dlls/coml2/Makefile.in index 739f791d4c5..d96fd52dff4 100644 --- a/dlls/coml2/Makefile.in +++ b/dlls/coml2/Makefile.in @@ -1,9 +1,13 @@ EXTRADEFS = -DWINOLE32API= MODULE = coml2.dll IMPORTLIB = coml2 -IMPORTS = uuid +IMPORTS = uuid combase +DELAYIMPORTS = oleaut32 SOURCES = \ + dictionary.c \ + filelockbytes.c \ memlockbytes.c \ stg_prop.c \ + stg_stream.c \ storage32.c diff --git a/dlls/coml2/coml2.spec b/dlls/coml2/coml2.spec index f9747cb449d..9e39d86bb2a 100644 --- a/dlls/coml2/coml2.spec +++ b/dlls/coml2/coml2.spec @@ -1,8 +1,8 @@ 1 stub @ 2 stub @ 3 stub @ -4 stub @ -5 stub @ +4 stdcall -noname StgConvertVariantToProperty(ptr long ptr ptr long long ptr) +5 stdcall -noname StgConvertPropertyToVariant(ptr long ptr ptr) 6 stub @ 7 stub @ 8 stub @ @@ -17,17 +17,17 @@ @ stdcall PropStgNameToFmtId(wstr ptr) @ stdcall ReadClassStg(ptr ptr) @ stdcall ReadClassStm(ptr ptr) -@ stub StgCreateDocfile -@ stub StgCreateDocfileOnILockBytes +@ stdcall StgCreateDocfile(wstr long long ptr) +@ stdcall StgCreateDocfileOnILockBytes(ptr long long ptr) @ stdcall StgCreatePropSetStg(ptr long ptr) -@ stub StgCreatePropStg -@ stub StgCreateStorageEx +@ stdcall StgCreatePropStg(ptr ptr ptr long long ptr) +@ stdcall StgCreateStorageEx(wstr long long long ptr ptr ptr ptr) @ stdcall StgIsStorageFile(wstr) @ stdcall StgIsStorageILockBytes(ptr) -@ stub StgOpenPropStg -@ stub StgOpenStorage -@ stub StgOpenStorageEx -@ stub StgOpenStorageOnILockBytes -@ stub StgSetTimes +@ stdcall StgOpenPropStg(ptr ptr long long ptr) +@ stdcall StgOpenStorage(wstr ptr long ptr long ptr) +@ stdcall StgOpenStorageEx(wstr long long long ptr ptr ptr ptr) +@ stdcall StgOpenStorageOnILockBytes(ptr ptr long ptr long ptr) +@ stdcall StgSetTimes(wstr ptr ptr ptr) @ stdcall WriteClassStg(ptr ptr) @ stdcall WriteClassStm(ptr ptr) diff --git a/dlls/ole32/dictionary.c b/dlls/coml2/dictionary.c similarity index 100% rename from dlls/ole32/dictionary.c rename to dlls/coml2/dictionary.c diff --git a/dlls/ole32/dictionary.h b/dlls/coml2/dictionary.h similarity index 100% rename from dlls/ole32/dictionary.h rename to dlls/coml2/dictionary.h diff --git a/dlls/ole32/filelockbytes.c b/dlls/coml2/filelockbytes.c similarity index 100% rename from dlls/ole32/filelockbytes.c rename to dlls/coml2/filelockbytes.c diff --git a/dlls/coml2/stg_prop.c b/dlls/coml2/stg_prop.c index 93d658c2a0a..0637c2551ba 100644 --- a/dlls/coml2/stg_prop.c +++ b/dlls/coml2/stg_prop.c @@ -52,9 +52,2948 @@ #include "wine/debug.h" #include "wine/heap.h" #include "oleauto.h" +#include "dictionary.h" +#include "storage32.h" WINE_DEFAULT_DEBUG_CHANNEL(storage); +static inline StorageImpl *impl_from_IPropertySetStorage( IPropertySetStorage *iface ) +{ + return CONTAINING_RECORD(iface, StorageImpl, base.IPropertySetStorage_iface); +} + +/* These are documented in MSDN, + * but they don't seem to be in any header file. + */ +#define PROPSETHDR_BYTEORDER_MAGIC 0xfffe +#define PROPSETHDR_OSVER_KIND_WIN16 0 +#define PROPSETHDR_OSVER_KIND_MAC 1 +#define PROPSETHDR_OSVER_KIND_WIN32 2 + +#define CP_UNICODE 1200 + +#define MAX_VERSION_0_PROP_NAME_LENGTH 256 + +#define CFTAG_WINDOWS (-1L) +#define CFTAG_MACINTOSH (-2L) +#define CFTAG_FMTID (-3L) +#define CFTAG_NODATA 0L + +#define ALIGNED_LENGTH(_Len, _Align) (((_Len)+(_Align))&~(_Align)) + +typedef struct tagPROPERTYSETHEADER +{ + WORD wByteOrder; /* always 0xfffe */ + WORD wFormat; /* can be zero or one */ + DWORD dwOSVer; /* OS version of originating system */ + CLSID clsid; /* application CLSID */ + DWORD reserved; /* always 1 */ +} PROPERTYSETHEADER; + +typedef struct tagFORMATIDOFFSET +{ + FMTID fmtid; + DWORD dwOffset; /* from beginning of stream */ +} FORMATIDOFFSET; + +typedef struct tagPROPERTYSECTIONHEADER +{ + DWORD cbSection; + DWORD cProperties; +} PROPERTYSECTIONHEADER; + +typedef struct tagPROPERTYIDOFFSET +{ + DWORD propid; + DWORD dwOffset; /* from beginning of section */ +} PROPERTYIDOFFSET; + +typedef struct tagPropertyStorage_impl PropertyStorage_impl; + +/* Initializes the property storage from the stream (and undoes any uncommitted + * changes in the process.) Returns an error if there is an error reading or + * if the stream format doesn't match what's expected. + */ +static HRESULT PropertyStorage_ReadFromStream(PropertyStorage_impl *); + +static HRESULT PropertyStorage_WriteToStream(PropertyStorage_impl *); + +/* Creates the dictionaries used by the property storage. If successful, all + * the dictionaries have been created. If failed, none has been. (This makes + * it a bit easier to deal with destroying them.) + */ +static HRESULT PropertyStorage_CreateDictionaries(PropertyStorage_impl *); + +static void PropertyStorage_DestroyDictionaries(PropertyStorage_impl *); + +/* Copies from propvar to prop. If propvar's type is VT_LPSTR, copies the + * string using PropertyStorage_StringCopy. + */ +static HRESULT PropertyStorage_PropVariantCopy(PROPVARIANT *prop, + const PROPVARIANT *propvar, UINT targetCP, UINT srcCP); + +/* Copies the string src, which is encoded using code page srcCP, and returns + * it in *dst, in the code page specified by targetCP. The returned string is + * allocated using CoTaskMemAlloc. + * If srcCP is CP_UNICODE, src is in fact an LPCWSTR. Similarly, if targetCP + * is CP_UNICODE, the returned string is in fact an LPWSTR. + * Returns S_OK on success, something else on failure. + */ +static HRESULT PropertyStorage_StringCopy(LPCSTR src, UINT srcCP, LPSTR *dst, + UINT targetCP); + +static const IPropertyStorageVtbl IPropertyStorage_Vtbl; + +/*********************************************************************** + * Implementation of IPropertyStorage + */ +struct tagPropertyStorage_impl +{ + IPropertyStorage IPropertyStorage_iface; + LONG ref; + CRITICAL_SECTION cs; + IStream *stm; + BOOL dirty; + FMTID fmtid; + CLSID clsid; + WORD format; + DWORD originatorOS; + DWORD grfFlags; + DWORD grfMode; + UINT codePage; + LCID locale; + PROPID highestProp; + struct dictionary *name_to_propid; + struct dictionary *propid_to_name; + struct dictionary *propid_to_prop; +}; + +static inline PropertyStorage_impl *impl_from_IPropertyStorage(IPropertyStorage *iface) +{ + return CONTAINING_RECORD(iface, PropertyStorage_impl, IPropertyStorage_iface); +} + +struct enum_stat_prop_stg +{ + IEnumSTATPROPSTG IEnumSTATPROPSTG_iface; + LONG refcount; + PropertyStorage_impl *storage; + STATPROPSTG *stats; + size_t current; + size_t count; +}; + +static struct enum_stat_prop_stg *impl_from_IEnumSTATPROPSTG(IEnumSTATPROPSTG *iface) +{ + return CONTAINING_RECORD(iface, struct enum_stat_prop_stg, IEnumSTATPROPSTG_iface); +} + +static HRESULT WINAPI enum_stat_prop_stg_QueryInterface(IEnumSTATPROPSTG *iface, REFIID riid, void **obj) +{ + TRACE("%p, %s, %p.\n", iface, debugstr_guid(riid), obj); + + if (IsEqualIID(riid, &IID_IEnumSTATPROPSTG) || + IsEqualIID(riid, &IID_IUnknown)) + { + *obj = iface; + IEnumSTATPROPSTG_AddRef(iface); + return S_OK; + } + + WARN("Unsupported interface %s.\n", debugstr_guid(riid)); + return E_NOINTERFACE; +} + +static ULONG WINAPI enum_stat_prop_stg_AddRef(IEnumSTATPROPSTG *iface) +{ + struct enum_stat_prop_stg *penum = impl_from_IEnumSTATPROPSTG(iface); + LONG refcount = InterlockedIncrement(&penum->refcount); + + TRACE("%p, refcount %lu.\n", iface, refcount); + + return refcount; +} + +static ULONG WINAPI enum_stat_prop_stg_Release(IEnumSTATPROPSTG *iface) +{ + struct enum_stat_prop_stg *penum = impl_from_IEnumSTATPROPSTG(iface); + LONG refcount = InterlockedDecrement(&penum->refcount); + + TRACE("%p, refcount %lu.\n", iface, refcount); + + if (!refcount) + { + IPropertyStorage_Release(&penum->storage->IPropertyStorage_iface); + heap_free(penum->stats); + heap_free(penum); + } + + return refcount; +} + +static HRESULT WINAPI enum_stat_prop_stg_Next(IEnumSTATPROPSTG *iface, ULONG celt, STATPROPSTG *ret, ULONG *fetched) +{ + struct enum_stat_prop_stg *penum = impl_from_IEnumSTATPROPSTG(iface); + ULONG count = 0; + WCHAR *name; + + TRACE("%p, %lu, %p, %p.\n", iface, celt, ret, fetched); + + if (penum->current == ~0u) + penum->current = 0; + + while (count < celt && penum->current < penum->count) + { + *ret = penum->stats[penum->current++]; + + if (dictionary_find(penum->storage->propid_to_name, UlongToPtr(ret->propid), (void **)&name)) + { + SIZE_T size = (lstrlenW(name) + 1) * sizeof(WCHAR); + ret->lpwstrName = CoTaskMemAlloc(size); + if (ret->lpwstrName) + memcpy(ret->lpwstrName, name, size); + } + ret++; + count++; + } + + if (fetched) + *fetched = count; + + return count < celt ? S_FALSE : S_OK; +} + +static HRESULT WINAPI enum_stat_prop_stg_Skip(IEnumSTATPROPSTG *iface, ULONG celt) +{ + FIXME("%p, %lu.\n", iface, celt); + + return S_OK; +} + +static HRESULT WINAPI enum_stat_prop_stg_Reset(IEnumSTATPROPSTG *iface) +{ + struct enum_stat_prop_stg *penum = impl_from_IEnumSTATPROPSTG(iface); + + TRACE("%p.\n", iface); + + penum->current = ~0u; + + return S_OK; +} + +static HRESULT WINAPI enum_stat_prop_stg_Clone(IEnumSTATPROPSTG *iface, IEnumSTATPROPSTG **ppenum) +{ + FIXME("%p, %p.\n", iface, ppenum); + + return E_NOTIMPL; +} + +static const IEnumSTATPROPSTGVtbl enum_stat_prop_stg_vtbl = +{ + enum_stat_prop_stg_QueryInterface, + enum_stat_prop_stg_AddRef, + enum_stat_prop_stg_Release, + enum_stat_prop_stg_Next, + enum_stat_prop_stg_Skip, + enum_stat_prop_stg_Reset, + enum_stat_prop_stg_Clone, +}; + +static BOOL prop_enum_stat(const void *k, const void *v, void *extra, void *arg) +{ + struct enum_stat_prop_stg *stg = arg; + PROPID propid = PtrToUlong(k); + const PROPVARIANT *prop = v; + STATPROPSTG *dest; + + dest = &stg->stats[stg->count]; + + dest->lpwstrName = NULL; + dest->propid = propid; + dest->vt = prop->vt; + stg->count++; + + return TRUE; +} + +static BOOL prop_enum_stat_count(const void *k, const void *v, void *extra, void *arg) +{ + DWORD *count = arg; + + *count += 1; + + return TRUE; +} + +static HRESULT create_enum_stat_prop_stg(PropertyStorage_impl *storage, IEnumSTATPROPSTG **ret) +{ + struct enum_stat_prop_stg *enum_obj; + DWORD count; + + enum_obj = heap_alloc_zero(sizeof(*enum_obj)); + if (!enum_obj) + return E_OUTOFMEMORY; + + enum_obj->IEnumSTATPROPSTG_iface.lpVtbl = &enum_stat_prop_stg_vtbl; + enum_obj->refcount = 1; + enum_obj->storage = storage; + IPropertyStorage_AddRef(&storage->IPropertyStorage_iface); + + count = 0; + dictionary_enumerate(storage->propid_to_prop, prop_enum_stat_count, &count); + + if (count) + { + if (!(enum_obj->stats = heap_alloc(sizeof(*enum_obj->stats) * count))) + { + IEnumSTATPROPSTG_Release(&enum_obj->IEnumSTATPROPSTG_iface); + return E_OUTOFMEMORY; + } + + dictionary_enumerate(storage->propid_to_prop, prop_enum_stat, enum_obj); + } + + *ret = &enum_obj->IEnumSTATPROPSTG_iface; + + return S_OK; +} + +/************************************************************************ + * IPropertyStorage_fnQueryInterface (IPropertyStorage) + */ +static HRESULT WINAPI IPropertyStorage_fnQueryInterface( + IPropertyStorage *iface, + REFIID riid, + void** ppvObject) +{ + PropertyStorage_impl *This = impl_from_IPropertyStorage(iface); + + TRACE("(%p, %s, %p)\n", This, debugstr_guid(riid), ppvObject); + + if (!ppvObject) + return E_INVALIDARG; + + *ppvObject = 0; + + if (IsEqualGUID(&IID_IUnknown, riid) || + IsEqualGUID(&IID_IPropertyStorage, riid)) + { + IPropertyStorage_AddRef(iface); + *ppvObject = iface; + return S_OK; + } + + return E_NOINTERFACE; +} + +/************************************************************************ + * IPropertyStorage_fnAddRef (IPropertyStorage) + */ +static ULONG WINAPI IPropertyStorage_fnAddRef( + IPropertyStorage *iface) +{ + PropertyStorage_impl *This = impl_from_IPropertyStorage(iface); + return InterlockedIncrement(&This->ref); +} + +/************************************************************************ + * IPropertyStorage_fnRelease (IPropertyStorage) + */ +static ULONG WINAPI IPropertyStorage_fnRelease( + IPropertyStorage *iface) +{ + PropertyStorage_impl *This = impl_from_IPropertyStorage(iface); + ULONG ref; + + ref = InterlockedDecrement(&This->ref); + if (ref == 0) + { + TRACE("Destroying %p\n", This); + if (This->dirty) + IPropertyStorage_Commit(iface, STGC_DEFAULT); + IStream_Release(This->stm); + This->cs.DebugInfo->Spare[0] = 0; + DeleteCriticalSection(&This->cs); + PropertyStorage_DestroyDictionaries(This); + HeapFree(GetProcessHeap(), 0, This); + } + return ref; +} + +static PROPVARIANT *PropertyStorage_FindProperty(PropertyStorage_impl *This, + DWORD propid) +{ + PROPVARIANT *ret = NULL; + + dictionary_find(This->propid_to_prop, UlongToPtr(propid), (void **)&ret); + TRACE("returning %p\n", ret); + return ret; +} + +/* Returns NULL if name is NULL. */ +static PROPVARIANT *PropertyStorage_FindPropertyByName( + PropertyStorage_impl *This, LPCWSTR name) +{ + PROPVARIANT *ret = NULL; + void *propid; + + if (!name) + return NULL; + if (This->codePage == CP_UNICODE) + { + if (dictionary_find(This->name_to_propid, name, &propid)) + ret = PropertyStorage_FindProperty(This, PtrToUlong(propid)); + } + else + { + LPSTR ansiName; + HRESULT hr = PropertyStorage_StringCopy((LPCSTR)name, CP_UNICODE, + &ansiName, This->codePage); + + if (SUCCEEDED(hr)) + { + if (dictionary_find(This->name_to_propid, ansiName, &propid)) + ret = PropertyStorage_FindProperty(This, PtrToUlong(propid)); + CoTaskMemFree(ansiName); + } + } + TRACE("returning %p\n", ret); + return ret; +} + +static LPWSTR PropertyStorage_FindPropertyNameById(PropertyStorage_impl *This, + DWORD propid) +{ + LPWSTR ret = NULL; + + dictionary_find(This->propid_to_name, UlongToPtr(propid), (void **)&ret); + TRACE("returning %p\n", ret); + return ret; +} + +/************************************************************************ + * IPropertyStorage_fnReadMultiple (IPropertyStorage) + */ +static HRESULT WINAPI IPropertyStorage_fnReadMultiple( + IPropertyStorage* iface, + ULONG cpspec, + const PROPSPEC rgpspec[], + PROPVARIANT rgpropvar[]) +{ + PropertyStorage_impl *This = impl_from_IPropertyStorage(iface); + HRESULT hr = S_OK; + ULONG i; + + TRACE("%p, %lu, %p, %p\n", iface, cpspec, rgpspec, rgpropvar); + + if (!cpspec) + return S_FALSE; + if (!rgpspec || !rgpropvar) + return E_INVALIDARG; + EnterCriticalSection(&This->cs); + for (i = 0; i < cpspec; i++) + { + PropVariantInit(&rgpropvar[i]); + if (rgpspec[i].ulKind == PRSPEC_LPWSTR) + { + PROPVARIANT *prop = PropertyStorage_FindPropertyByName(This, + rgpspec[i].lpwstr); + + if (prop) + PropertyStorage_PropVariantCopy(&rgpropvar[i], prop, GetACP(), + This->codePage); + } + else + { + switch (rgpspec[i].propid) + { + case PID_CODEPAGE: + rgpropvar[i].vt = VT_I2; + rgpropvar[i].iVal = This->codePage; + break; + case PID_LOCALE: + rgpropvar[i].vt = VT_I4; + rgpropvar[i].lVal = This->locale; + break; + default: + { + PROPVARIANT *prop = PropertyStorage_FindProperty(This, + rgpspec[i].propid); + + if (prop) + PropertyStorage_PropVariantCopy(&rgpropvar[i], prop, + GetACP(), This->codePage); + else + hr = S_FALSE; + } + } + } + } + LeaveCriticalSection(&This->cs); + return hr; +} + +static HRESULT PropertyStorage_StringCopy(LPCSTR src, UINT srcCP, LPSTR *dst, UINT dstCP) +{ + HRESULT hr = S_OK; + int len; + + TRACE("%s, %p, %d, %d\n", + srcCP == CP_UNICODE ? debugstr_w((LPCWSTR)src) : debugstr_a(src), dst, + dstCP, srcCP); + assert(src); + assert(dst); + *dst = NULL; + if (dstCP == srcCP) + { + size_t len; + + if (dstCP == CP_UNICODE) + len = (lstrlenW((LPCWSTR)src) + 1) * sizeof(WCHAR); + else + len = strlen(src) + 1; + *dst = CoTaskMemAlloc(len); + if (!*dst) + hr = STG_E_INSUFFICIENTMEMORY; + else + memcpy(*dst, src, len); + } + else + { + if (dstCP == CP_UNICODE) + { + len = MultiByteToWideChar(srcCP, 0, src, -1, NULL, 0); + *dst = CoTaskMemAlloc(len * sizeof(WCHAR)); + if (!*dst) + hr = STG_E_INSUFFICIENTMEMORY; + else + MultiByteToWideChar(srcCP, 0, src, -1, (LPWSTR)*dst, len); + } + else + { + LPCWSTR wideStr = NULL; + LPWSTR wideStr_tmp = NULL; + + if (srcCP == CP_UNICODE) + wideStr = (LPCWSTR)src; + else + { + len = MultiByteToWideChar(srcCP, 0, src, -1, NULL, 0); + wideStr_tmp = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR)); + if (wideStr_tmp) + { + MultiByteToWideChar(srcCP, 0, src, -1, wideStr_tmp, len); + wideStr = wideStr_tmp; + } + else + hr = STG_E_INSUFFICIENTMEMORY; + } + if (SUCCEEDED(hr)) + { + len = WideCharToMultiByte(dstCP, 0, wideStr, -1, NULL, 0, + NULL, NULL); + *dst = CoTaskMemAlloc(len); + if (!*dst) + hr = STG_E_INSUFFICIENTMEMORY; + else + { + BOOL defCharUsed = FALSE; + + if (WideCharToMultiByte(dstCP, 0, wideStr, -1, *dst, len, + NULL, &defCharUsed) == 0 || defCharUsed) + { + CoTaskMemFree(*dst); + *dst = NULL; + hr = HRESULT_FROM_WIN32(ERROR_NO_UNICODE_TRANSLATION); + } + } + } + HeapFree(GetProcessHeap(), 0, wideStr_tmp); + } + } + TRACE("returning %#lx (%s)\n", hr, + dstCP == CP_UNICODE ? debugstr_w((LPCWSTR)*dst) : debugstr_a(*dst)); + return hr; +} + +static HRESULT PropertyStorage_PropVariantCopy(PROPVARIANT *prop, const PROPVARIANT *propvar, + UINT targetCP, UINT srcCP) +{ + HRESULT hr = S_OK; + + assert(prop); + assert(propvar); + + switch (propvar->vt) + { + case VT_LPSTR: + hr = PropertyStorage_StringCopy(propvar->pszVal, srcCP, &prop->pszVal, targetCP); + if (SUCCEEDED(hr)) + prop->vt = VT_LPSTR; + break; + case VT_BSTR: + if ((prop->bstrVal = SysAllocStringLen(propvar->bstrVal, SysStringLen(propvar->bstrVal)))) + prop->vt = VT_BSTR; + else + hr = E_OUTOFMEMORY; + break; + default: + hr = PropVariantCopy(prop, propvar); + } + + return hr; +} + +/* Stores the property with id propid and value propvar into this property + * storage. lcid is ignored if propvar's type is not VT_LPSTR. If propvar's + * type is VT_LPSTR, converts the string using lcid as the source code page + * and This->codePage as the target code page before storing. + * As a side effect, may change This->format to 1 if the type of propvar is + * a version 1-only property. + */ +static HRESULT PropertyStorage_StorePropWithId(PropertyStorage_impl *This, + PROPID propid, const PROPVARIANT *propvar, UINT cp) +{ + HRESULT hr = S_OK; + PROPVARIANT *prop = PropertyStorage_FindProperty(This, propid); + + assert(propvar); + if (propvar->vt & VT_BYREF || propvar->vt & VT_ARRAY) + This->format = 1; + switch (propvar->vt) + { + case VT_DECIMAL: + case VT_I1: + case VT_INT: + case VT_UINT: + case VT_VECTOR|VT_I1: + This->format = 1; + } + TRACE("Setting %#lx to type %d\n", propid, propvar->vt); + if (prop) + { + PropVariantClear(prop); + hr = PropertyStorage_PropVariantCopy(prop, propvar, This->codePage, cp); + } + else + { + prop = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, + sizeof(PROPVARIANT)); + if (prop) + { + hr = PropertyStorage_PropVariantCopy(prop, propvar, This->codePage, cp); + if (SUCCEEDED(hr)) + { + dictionary_insert(This->propid_to_prop, UlongToPtr(propid), prop); + if (propid > This->highestProp) + This->highestProp = propid; + } + else + HeapFree(GetProcessHeap(), 0, prop); + } + else + hr = STG_E_INSUFFICIENTMEMORY; + } + return hr; +} + +/* Adds the name srcName to the name dictionaries, mapped to property ID id. + * srcName is encoded in code page cp, and is converted to This->codePage. + * If cp is CP_UNICODE, srcName is actually a unicode string. + * As a side effect, may change This->format to 1 if srcName is too long for + * a version 0 property storage. + * Doesn't validate id. + */ +static HRESULT PropertyStorage_StoreNameWithId(PropertyStorage_impl *This, + LPCSTR srcName, UINT cp, PROPID id) +{ + LPSTR name; + HRESULT hr; + + assert(srcName); + + hr = PropertyStorage_StringCopy(srcName, cp, &name, This->codePage); + if (SUCCEEDED(hr)) + { + if (This->codePage == CP_UNICODE) + { + if (lstrlenW((LPWSTR)name) >= MAX_VERSION_0_PROP_NAME_LENGTH) + This->format = 1; + } + else + { + if (strlen(name) >= MAX_VERSION_0_PROP_NAME_LENGTH) + This->format = 1; + } + TRACE("Adding prop name %s, propid %ld\n", + This->codePage == CP_UNICODE ? debugstr_w((LPCWSTR)name) : + debugstr_a(name), id); + dictionary_insert(This->name_to_propid, name, UlongToPtr(id)); + dictionary_insert(This->propid_to_name, UlongToPtr(id), name); + } + return hr; +} + +/************************************************************************ + * IPropertyStorage_fnWriteMultiple (IPropertyStorage) + */ +static HRESULT WINAPI IPropertyStorage_fnWriteMultiple( + IPropertyStorage* iface, + ULONG cpspec, + const PROPSPEC rgpspec[], + const PROPVARIANT rgpropvar[], + PROPID propidNameFirst) +{ + PropertyStorage_impl *This = impl_from_IPropertyStorage(iface); + HRESULT hr = S_OK; + ULONG i; + + TRACE("%p, %lu, %p, %p.\n", iface, cpspec, rgpspec, rgpropvar); + + if (cpspec && (!rgpspec || !rgpropvar)) + return E_INVALIDARG; + if (!(This->grfMode & STGM_READWRITE)) + return STG_E_ACCESSDENIED; + EnterCriticalSection(&This->cs); + This->dirty = TRUE; + This->originatorOS = (DWORD)MAKELONG(LOWORD(GetVersion()), + PROPSETHDR_OSVER_KIND_WIN32) ; + for (i = 0; i < cpspec; i++) + { + if (rgpspec[i].ulKind == PRSPEC_LPWSTR) + { + PROPVARIANT *prop = PropertyStorage_FindPropertyByName(This, + rgpspec[i].lpwstr); + + if (prop) + PropVariantCopy(prop, &rgpropvar[i]); + else + { + /* Note that I don't do the special cases here that I do below, + * because naming the special PIDs isn't supported. + */ + if (propidNameFirst < PID_FIRST_USABLE || + propidNameFirst >= PID_MIN_READONLY) + hr = STG_E_INVALIDPARAMETER; + else + { + PROPID nextId = max(propidNameFirst, This->highestProp + 1); + + hr = PropertyStorage_StoreNameWithId(This, + (LPCSTR)rgpspec[i].lpwstr, CP_UNICODE, nextId); + if (SUCCEEDED(hr)) + hr = PropertyStorage_StorePropWithId(This, nextId, + &rgpropvar[i], GetACP()); + } + } + } + else + { + switch (rgpspec[i].propid) + { + case PID_DICTIONARY: + /* Can't set the dictionary */ + hr = STG_E_INVALIDPARAMETER; + break; + case PID_CODEPAGE: + /* Can only set the code page if nothing else has been set */ + if (dictionary_num_entries(This->propid_to_prop) == 0 && + rgpropvar[i].vt == VT_I2) + { + This->codePage = (USHORT)rgpropvar[i].iVal; + if (This->codePage == CP_UNICODE) + This->grfFlags &= ~PROPSETFLAG_ANSI; + else + This->grfFlags |= PROPSETFLAG_ANSI; + } + else + hr = STG_E_INVALIDPARAMETER; + break; + case PID_LOCALE: + /* Can only set the locale if nothing else has been set */ + if (dictionary_num_entries(This->propid_to_prop) == 0 && + rgpropvar[i].vt == VT_I4) + This->locale = rgpropvar[i].lVal; + else + hr = STG_E_INVALIDPARAMETER; + break; + case PID_ILLEGAL: + /* silently ignore like MSDN says */ + break; + default: + if (rgpspec[i].propid >= PID_MIN_READONLY) + hr = STG_E_INVALIDPARAMETER; + else + hr = PropertyStorage_StorePropWithId(This, + rgpspec[i].propid, &rgpropvar[i], GetACP()); + } + } + } + if (This->grfFlags & PROPSETFLAG_UNBUFFERED) + IPropertyStorage_Commit(iface, STGC_DEFAULT); + LeaveCriticalSection(&This->cs); + return hr; +} + +/************************************************************************ + * IPropertyStorage_fnDeleteMultiple (IPropertyStorage) + */ +static HRESULT WINAPI IPropertyStorage_fnDeleteMultiple( + IPropertyStorage* iface, + ULONG cpspec, + const PROPSPEC rgpspec[]) +{ + PropertyStorage_impl *This = impl_from_IPropertyStorage(iface); + ULONG i; + HRESULT hr; + + TRACE("%p, %ld, %p.\n", iface, cpspec, rgpspec); + + if (cpspec && !rgpspec) + return E_INVALIDARG; + if (!(This->grfMode & STGM_READWRITE)) + return STG_E_ACCESSDENIED; + hr = S_OK; + EnterCriticalSection(&This->cs); + This->dirty = TRUE; + for (i = 0; i < cpspec; i++) + { + if (rgpspec[i].ulKind == PRSPEC_LPWSTR) + { + void *propid; + + if (dictionary_find(This->name_to_propid, rgpspec[i].lpwstr, &propid)) + dictionary_remove(This->propid_to_prop, propid); + } + else + { + if (rgpspec[i].propid >= PID_FIRST_USABLE && + rgpspec[i].propid < PID_MIN_READONLY) + dictionary_remove(This->propid_to_prop, UlongToPtr(rgpspec[i].propid)); + else + hr = STG_E_INVALIDPARAMETER; + } + } + if (This->grfFlags & PROPSETFLAG_UNBUFFERED) + IPropertyStorage_Commit(iface, STGC_DEFAULT); + LeaveCriticalSection(&This->cs); + return hr; +} + +/************************************************************************ + * IPropertyStorage_fnReadPropertyNames (IPropertyStorage) + */ +static HRESULT WINAPI IPropertyStorage_fnReadPropertyNames( + IPropertyStorage* iface, + ULONG cpropid, + const PROPID rgpropid[], + LPOLESTR rglpwstrName[]) +{ + PropertyStorage_impl *This = impl_from_IPropertyStorage(iface); + ULONG i; + HRESULT hr = S_FALSE; + + TRACE("%p, %ld, %p, %p.\n", iface, cpropid, rgpropid, rglpwstrName); + + if (cpropid && (!rgpropid || !rglpwstrName)) + return E_INVALIDARG; + EnterCriticalSection(&This->cs); + for (i = 0; i < cpropid && SUCCEEDED(hr); i++) + { + LPWSTR name = PropertyStorage_FindPropertyNameById(This, rgpropid[i]); + + if (name) + { + size_t len = lstrlenW(name); + + hr = S_OK; + rglpwstrName[i] = CoTaskMemAlloc((len + 1) * sizeof(WCHAR)); + if (rglpwstrName[i]) + memcpy(rglpwstrName[i], name, (len + 1) * sizeof(WCHAR)); + else + hr = STG_E_INSUFFICIENTMEMORY; + } + else + rglpwstrName[i] = NULL; + } + LeaveCriticalSection(&This->cs); + return hr; +} + +/************************************************************************ + * IPropertyStorage_fnWritePropertyNames (IPropertyStorage) + */ +static HRESULT WINAPI IPropertyStorage_fnWritePropertyNames( + IPropertyStorage* iface, + ULONG cpropid, + const PROPID rgpropid[], + const LPOLESTR rglpwstrName[]) +{ + PropertyStorage_impl *This = impl_from_IPropertyStorage(iface); + ULONG i; + HRESULT hr; + + TRACE("%p, %lu, %p, %p.\n", iface, cpropid, rgpropid, rglpwstrName); + + if (cpropid && (!rgpropid || !rglpwstrName)) + return E_INVALIDARG; + if (!(This->grfMode & STGM_READWRITE)) + return STG_E_ACCESSDENIED; + hr = S_OK; + EnterCriticalSection(&This->cs); + This->dirty = TRUE; + for (i = 0; SUCCEEDED(hr) && i < cpropid; i++) + { + if (rgpropid[i] != PID_ILLEGAL) + hr = PropertyStorage_StoreNameWithId(This, (LPCSTR)rglpwstrName[i], + CP_UNICODE, rgpropid[i]); + } + if (This->grfFlags & PROPSETFLAG_UNBUFFERED) + IPropertyStorage_Commit(iface, STGC_DEFAULT); + LeaveCriticalSection(&This->cs); + return hr; +} + +/************************************************************************ + * IPropertyStorage_fnDeletePropertyNames (IPropertyStorage) + */ +static HRESULT WINAPI IPropertyStorage_fnDeletePropertyNames( + IPropertyStorage* iface, + ULONG cpropid, + const PROPID rgpropid[]) +{ + PropertyStorage_impl *This = impl_from_IPropertyStorage(iface); + ULONG i; + HRESULT hr; + + TRACE("%p, %ld, %p.\n", iface, cpropid, rgpropid); + + if (cpropid && !rgpropid) + return E_INVALIDARG; + if (!(This->grfMode & STGM_READWRITE)) + return STG_E_ACCESSDENIED; + hr = S_OK; + EnterCriticalSection(&This->cs); + This->dirty = TRUE; + for (i = 0; i < cpropid; i++) + { + LPWSTR name = NULL; + + if (dictionary_find(This->propid_to_name, UlongToPtr(rgpropid[i]), (void **)&name)) + { + dictionary_remove(This->propid_to_name, UlongToPtr(rgpropid[i])); + dictionary_remove(This->name_to_propid, name); + } + } + if (This->grfFlags & PROPSETFLAG_UNBUFFERED) + IPropertyStorage_Commit(iface, STGC_DEFAULT); + LeaveCriticalSection(&This->cs); + return hr; +} + +/************************************************************************ + * IPropertyStorage_fnCommit (IPropertyStorage) + */ +static HRESULT WINAPI IPropertyStorage_fnCommit( + IPropertyStorage* iface, + DWORD grfCommitFlags) +{ + PropertyStorage_impl *This = impl_from_IPropertyStorage(iface); + HRESULT hr; + + TRACE("%p, %#lx.\n", iface, grfCommitFlags); + + if (!(This->grfMode & STGM_READWRITE)) + return STG_E_ACCESSDENIED; + EnterCriticalSection(&This->cs); + if (This->dirty) + hr = PropertyStorage_WriteToStream(This); + else + hr = S_OK; + LeaveCriticalSection(&This->cs); + return hr; +} + +/************************************************************************ + * IPropertyStorage_fnRevert (IPropertyStorage) + */ +static HRESULT WINAPI IPropertyStorage_fnRevert( + IPropertyStorage* iface) +{ + HRESULT hr; + PropertyStorage_impl *This = impl_from_IPropertyStorage(iface); + + TRACE("%p\n", iface); + + EnterCriticalSection(&This->cs); + if (This->dirty) + { + PropertyStorage_DestroyDictionaries(This); + hr = PropertyStorage_CreateDictionaries(This); + if (SUCCEEDED(hr)) + hr = PropertyStorage_ReadFromStream(This); + } + else + hr = S_OK; + LeaveCriticalSection(&This->cs); + return hr; +} + +/************************************************************************ + * IPropertyStorage_fnEnum (IPropertyStorage) + */ +static HRESULT WINAPI IPropertyStorage_fnEnum(IPropertyStorage *iface, IEnumSTATPROPSTG **ppenum) +{ + PropertyStorage_impl *storage = impl_from_IPropertyStorage(iface); + + TRACE("%p, %p.\n", iface, ppenum); + + return create_enum_stat_prop_stg(storage, ppenum); +} + +/************************************************************************ + * IPropertyStorage_fnSetTimes (IPropertyStorage) + */ +static HRESULT WINAPI IPropertyStorage_fnSetTimes( + IPropertyStorage* iface, + const FILETIME* pctime, + const FILETIME* patime, + const FILETIME* pmtime) +{ + FIXME("\n"); + return E_NOTIMPL; +} + +/************************************************************************ + * IPropertyStorage_fnSetClass (IPropertyStorage) + */ +static HRESULT WINAPI IPropertyStorage_fnSetClass( + IPropertyStorage* iface, + REFCLSID clsid) +{ + PropertyStorage_impl *This = impl_from_IPropertyStorage(iface); + + TRACE("%p, %s\n", iface, debugstr_guid(clsid)); + + if (!clsid) + return E_INVALIDARG; + if (!(This->grfMode & STGM_READWRITE)) + return STG_E_ACCESSDENIED; + This->clsid = *clsid; + This->dirty = TRUE; + if (This->grfFlags & PROPSETFLAG_UNBUFFERED) + IPropertyStorage_Commit(iface, STGC_DEFAULT); + return S_OK; +} + +/************************************************************************ + * IPropertyStorage_fnStat (IPropertyStorage) + */ +static HRESULT WINAPI IPropertyStorage_fnStat( + IPropertyStorage* iface, + STATPROPSETSTG* statpsstg) +{ + PropertyStorage_impl *This = impl_from_IPropertyStorage(iface); + STATSTG stat; + HRESULT hr; + + TRACE("%p, %p\n", iface, statpsstg); + + if (!statpsstg) + return E_INVALIDARG; + + hr = IStream_Stat(This->stm, &stat, STATFLAG_NONAME); + if (SUCCEEDED(hr)) + { + statpsstg->fmtid = This->fmtid; + statpsstg->clsid = This->clsid; + statpsstg->grfFlags = This->grfFlags; + statpsstg->mtime = stat.mtime; + statpsstg->ctime = stat.ctime; + statpsstg->atime = stat.atime; + statpsstg->dwOSVersion = This->originatorOS; + } + return hr; +} + +static int PropertyStorage_PropNameCompare(const void *a, const void *b, + void *extra) +{ + PropertyStorage_impl *This = extra; + + if (This->codePage == CP_UNICODE) + { + TRACE("(%s, %s)\n", debugstr_w(a), debugstr_w(b)); + if (This->grfFlags & PROPSETFLAG_CASE_SENSITIVE) + return wcscmp(a, b); + else + return lstrcmpiW(a, b); + } + else + { + TRACE("(%s, %s)\n", debugstr_a(a), debugstr_a(b)); + if (This->grfFlags & PROPSETFLAG_CASE_SENSITIVE) + return lstrcmpA(a, b); + else + return lstrcmpiA(a, b); + } +} + +static void PropertyStorage_PropNameDestroy(void *k, void *d, void *extra) +{ + CoTaskMemFree(k); +} + +static int PropertyStorage_PropCompare(const void *a, const void *b, + void *extra) +{ + TRACE("%lu, %lu.\n", PtrToUlong(a), PtrToUlong(b)); + return PtrToUlong(a) - PtrToUlong(b); +} + +static void PropertyStorage_PropertyDestroy(void *k, void *d, void *extra) +{ + PropVariantClear(d); + HeapFree(GetProcessHeap(), 0, d); +} + +#ifdef WORDS_BIGENDIAN +/* Swaps each character in str to or from little endian; assumes the conversion + * is symmetric, that is, that lendian16toh is equivalent to htole16. + */ +static void PropertyStorage_ByteSwapString(LPWSTR str, size_t len) +{ + DWORD i; + + /* Swap characters to host order. + * FIXME: alignment? + */ + for (i = 0; i < len; i++) + str[i] = lendian16toh(str[i]); +} +#else +#define PropertyStorage_ByteSwapString(s, l) +#endif + +static void* WINAPI Allocate_CoTaskMemAlloc(void *this, ULONG size) +{ + return CoTaskMemAlloc(size); +} + +struct read_buffer +{ + BYTE *data; + size_t size; +}; + +static HRESULT buffer_test_offset(const struct read_buffer *buffer, size_t offset, size_t len) +{ + return len > buffer->size || offset > buffer->size - len ? STG_E_READFAULT : S_OK; +} + +static HRESULT buffer_read_uint64(const struct read_buffer *buffer, size_t offset, ULARGE_INTEGER *data) +{ + HRESULT hr; + + if (SUCCEEDED(hr = buffer_test_offset(buffer, offset, sizeof(*data)))) + StorageUtl_ReadULargeInteger(buffer->data, offset, data); + + return hr; +} + +static HRESULT buffer_read_dword(const struct read_buffer *buffer, size_t offset, DWORD *data) +{ + HRESULT hr; + + if (SUCCEEDED(hr = buffer_test_offset(buffer, offset, sizeof(*data)))) + StorageUtl_ReadDWord(buffer->data, offset, data); + + return hr; +} + +static HRESULT buffer_read_word(const struct read_buffer *buffer, size_t offset, WORD *data) +{ + HRESULT hr; + + if (SUCCEEDED(hr = buffer_test_offset(buffer, offset, sizeof(*data)))) + StorageUtl_ReadWord(buffer->data, offset, data); + + return hr; +} + +static HRESULT buffer_read_byte(const struct read_buffer *buffer, size_t offset, BYTE *data) +{ + HRESULT hr; + + if (SUCCEEDED(hr = buffer_test_offset(buffer, offset, sizeof(*data)))) + *data = *(buffer->data + offset); + + return hr; +} + +static HRESULT buffer_read_len(const struct read_buffer *buffer, size_t offset, void *dest, size_t len) +{ + HRESULT hr; + + if (SUCCEEDED(hr = buffer_test_offset(buffer, offset, len))) + memcpy(dest, buffer->data + offset, len); + + return hr; +} + +static HRESULT propertystorage_read_scalar(PROPVARIANT *prop, const struct read_buffer *buffer, size_t offset, + UINT codepage, void* (WINAPI *allocate)(void *this, ULONG size), void *allocate_data) +{ + HRESULT hr; + + assert(!(prop->vt & (VT_ARRAY | VT_VECTOR))); + + switch (prop->vt) + { + case VT_EMPTY: + case VT_NULL: + hr = S_OK; + break; + case VT_I1: + hr = buffer_read_byte(buffer, offset, (BYTE *)&prop->cVal); + TRACE("Read char 0x%x ('%c')\n", prop->cVal, prop->cVal); + break; + case VT_UI1: + hr = buffer_read_byte(buffer, offset, &prop->bVal); + TRACE("Read byte 0x%x\n", prop->bVal); + break; + case VT_BOOL: + hr = buffer_read_word(buffer, offset, (WORD *)&prop->boolVal); + TRACE("Read bool %d\n", prop->boolVal); + break; + case VT_I2: + hr = buffer_read_word(buffer, offset, (WORD *)&prop->iVal); + TRACE("Read short %d\n", prop->iVal); + break; + case VT_UI2: + hr = buffer_read_word(buffer, offset, &prop->uiVal); + TRACE("Read ushort %d\n", prop->uiVal); + break; + case VT_INT: + case VT_I4: + hr = buffer_read_dword(buffer, offset, (DWORD *)&prop->lVal); + TRACE("Read long %ld\n", prop->lVal); + break; + case VT_UINT: + case VT_UI4: + hr = buffer_read_dword(buffer, offset, &prop->ulVal); + TRACE("Read ulong %ld\n", prop->ulVal); + break; + case VT_I8: + hr = buffer_read_uint64(buffer, offset, (ULARGE_INTEGER *)&prop->hVal); + TRACE("Read long long %s\n", wine_dbgstr_longlong(prop->hVal.QuadPart)); + break; + case VT_UI8: + hr = buffer_read_uint64(buffer, offset, &prop->uhVal); + TRACE("Read ulong long %s\n", wine_dbgstr_longlong(prop->uhVal.QuadPart)); + break; + case VT_R8: + hr = buffer_read_len(buffer, offset, &prop->dblVal, sizeof(prop->dblVal)); + TRACE("Read double %f\n", prop->dblVal); + break; + case VT_LPSTR: + { + DWORD count; + + if (FAILED(hr = buffer_read_dword(buffer, offset, &count))) + break; + + offset += sizeof(DWORD); + + if (codepage == CP_UNICODE && count % sizeof(WCHAR)) + { + WARN("Unicode string has odd number of bytes\n"); + hr = STG_E_INVALIDHEADER; + } + else + { + prop->pszVal = allocate(allocate_data, count); + if (prop->pszVal) + { + if (FAILED(hr = buffer_read_len(buffer, offset, prop->pszVal, count))) + break; + + /* This is stored in the code page specified in codepage. + * Don't convert it, the caller will just store it as-is. + */ + if (codepage == CP_UNICODE) + { + /* Make sure it's NULL-terminated */ + prop->pszVal[count / sizeof(WCHAR) - 1] = '\0'; + TRACE("Read string value %s\n", + debugstr_w(prop->pwszVal)); + } + else + { + /* Make sure it's NULL-terminated */ + prop->pszVal[count - 1] = '\0'; + TRACE("Read string value %s\n", debugstr_a(prop->pszVal)); + } + } + else + hr = STG_E_INSUFFICIENTMEMORY; + } + break; + } + case VT_BSTR: + { + DWORD count, wcount; + + if (FAILED(hr = buffer_read_dword(buffer, offset, &count))) + break; + + offset += sizeof(DWORD); + + if (codepage == CP_UNICODE && count % sizeof(WCHAR)) + { + WARN("Unicode string has odd number of bytes\n"); + hr = STG_E_INVALIDHEADER; + } + else + { + if (codepage == CP_UNICODE) + wcount = count / sizeof(WCHAR); + else + { + if (FAILED(hr = buffer_test_offset(buffer, offset, count))) + break; + wcount = MultiByteToWideChar(codepage, 0, (LPCSTR)(buffer->data + offset), count, NULL, 0); + } + + prop->bstrVal = SysAllocStringLen(NULL, wcount); /* FIXME: use allocator? */ + + if (prop->bstrVal) + { + if (codepage == CP_UNICODE) + hr = buffer_read_len(buffer, offset, prop->bstrVal, count); + else + MultiByteToWideChar(codepage, 0, (LPCSTR)(buffer->data + offset), count, prop->bstrVal, wcount); + + prop->bstrVal[wcount - 1] = '\0'; + TRACE("Read string value %s\n", debugstr_w(prop->bstrVal)); + } + else + hr = STG_E_INSUFFICIENTMEMORY; + } + break; + } + case VT_BLOB: + { + DWORD count; + + if (FAILED(hr = buffer_read_dword(buffer, offset, &count))) + break; + + offset += sizeof(DWORD); + + prop->blob.cbSize = count; + prop->blob.pBlobData = allocate(allocate_data, count); + if (prop->blob.pBlobData) + { + hr = buffer_read_len(buffer, offset, prop->blob.pBlobData, count); + TRACE("Read blob value of size %ld\n", count); + } + else + hr = STG_E_INSUFFICIENTMEMORY; + break; + } + case VT_LPWSTR: + { + DWORD count; + + if (FAILED(hr = buffer_read_dword(buffer, offset, &count))) + break; + + offset += sizeof(DWORD); + + prop->pwszVal = allocate(allocate_data, count * sizeof(WCHAR)); + if (prop->pwszVal) + { + if (SUCCEEDED(hr = buffer_read_len(buffer, offset, prop->pwszVal, count * sizeof(WCHAR)))) + { + /* make sure string is NULL-terminated */ + prop->pwszVal[count - 1] = '\0'; + PropertyStorage_ByteSwapString(prop->pwszVal, count); + TRACE("Read string value %s\n", debugstr_w(prop->pwszVal)); + } + } + else + hr = STG_E_INSUFFICIENTMEMORY; + break; + } + case VT_FILETIME: + hr = buffer_read_uint64(buffer, offset, (ULARGE_INTEGER *)&prop->filetime); + break; + case VT_CF: + { + DWORD len = 0, tag = 0; + + if (SUCCEEDED(hr = buffer_read_dword(buffer, offset, &len))) + hr = buffer_read_dword(buffer, offset + sizeof(DWORD), &tag); + if (FAILED(hr)) + break; + + offset += 2 * sizeof(DWORD); + + if (len > 8) + { + len -= 8; + prop->pclipdata = allocate(allocate_data, sizeof (CLIPDATA)); + prop->pclipdata->cbSize = len; + prop->pclipdata->ulClipFmt = tag; + prop->pclipdata->pClipData = allocate(allocate_data, len - sizeof(prop->pclipdata->ulClipFmt)); + hr = buffer_read_len(buffer, offset, prop->pclipdata->pClipData, len - sizeof(prop->pclipdata->ulClipFmt)); + } + else + hr = STG_E_INVALIDPARAMETER; + } + break; + case VT_CLSID: + if (!(prop->puuid = allocate(allocate_data, sizeof (*prop->puuid)))) + return STG_E_INSUFFICIENTMEMORY; + + if (SUCCEEDED(hr = buffer_test_offset(buffer, offset, sizeof(*prop->puuid)))) + StorageUtl_ReadGUID(buffer->data, offset, prop->puuid); + + break; + default: + FIXME("unsupported type %d\n", prop->vt); + hr = STG_E_INVALIDPARAMETER; + } + + return hr; +} + +static size_t propertystorage_get_elemsize(const PROPVARIANT *prop) +{ + if (!(prop->vt & VT_VECTOR)) + return 0; + + switch (prop->vt & ~VT_VECTOR) + { + case VT_I1: return sizeof(*prop->cac.pElems); + case VT_UI1: return sizeof(*prop->caub.pElems); + case VT_I2: return sizeof(*prop->cai.pElems); + case VT_UI2: return sizeof(*prop->caui.pElems); + case VT_BOOL: return sizeof(*prop->cabool.pElems); + case VT_I4: return sizeof(*prop->cal.pElems); + case VT_UI4: return sizeof(*prop->caul.pElems); + case VT_R4: return sizeof(*prop->caflt.pElems); + case VT_ERROR: return sizeof(*prop->cascode.pElems); + case VT_I8: return sizeof(*prop->cah.pElems); + case VT_UI8: return sizeof(*prop->cauh.pElems); + case VT_R8: return sizeof(*prop->cadbl.pElems); + case VT_CY: return sizeof(*prop->cacy.pElems); + case VT_DATE: return sizeof(*prop->cadate.pElems); + case VT_FILETIME: return sizeof(*prop->cafiletime.pElems); + case VT_CLSID: return sizeof(*prop->cauuid.pElems); + case VT_VARIANT: return sizeof(*prop->capropvar.pElems); + default: + FIXME("Unhandled type %#x.\n", prop->vt); + return 0; + } +} + +HRESULT WINAPI PropertyStorage_ReadProperty(PROPVARIANT *prop, const struct read_buffer *buffer, + SIZE_T offset, UINT codepage, void* (WINAPI *allocate)(void *this, ULONG size), void *allocate_data) +{ + HRESULT hr; + DWORD vt; + + assert(prop); + assert(buffer->data); + + if (FAILED(hr = buffer_read_dword(buffer, offset, &vt))) + return hr; + + offset += sizeof(DWORD); + prop->vt = vt; + + if (prop->vt & VT_VECTOR) + { + DWORD count, i; + + switch (prop->vt & VT_VECTOR) + { + case VT_BSTR: + case VT_VARIANT: + case VT_LPSTR: + case VT_LPWSTR: + case VT_CF: + FIXME("Vector with variable length elements are not supported.\n"); + return STG_E_INVALIDPARAMETER; + default: + ; + } + + if (SUCCEEDED(hr = buffer_read_dword(buffer, offset, &count))) + { + size_t elemsize = propertystorage_get_elemsize(prop); + PROPVARIANT elem; + + offset += sizeof(DWORD); + + if ((prop->capropvar.pElems = allocate(allocate_data, elemsize * count))) + { + prop->capropvar.cElems = count; + elem.vt = prop->vt & ~VT_VECTOR; + + for (i = 0; i < count; ++i) + { + if (SUCCEEDED(hr = propertystorage_read_scalar(&elem, buffer, offset + i * elemsize, codepage, + allocate, allocate_data))) + { + memcpy(&prop->capropvar.pElems[i], &elem.lVal, elemsize); + } + } + } + else + hr = STG_E_INSUFFICIENTMEMORY; + } + } + else if (prop->vt & VT_ARRAY) + { + FIXME("VT_ARRAY properties are not supported.\n"); + hr = STG_E_INVALIDPARAMETER; + } + else + hr = propertystorage_read_scalar(prop, buffer, offset, codepage, allocate, allocate_data); + + return hr; +} + +static HRESULT PropertyStorage_ReadHeaderFromStream(IStream *stm, + PROPERTYSETHEADER *hdr) +{ + BYTE buf[sizeof(PROPERTYSETHEADER)]; + ULONG count = 0; + HRESULT hr; + + assert(stm); + assert(hdr); + hr = IStream_Read(stm, buf, sizeof(buf), &count); + if (SUCCEEDED(hr)) + { + if (count != sizeof(buf)) + { + WARN("read only %ld\n", count); + hr = STG_E_INVALIDHEADER; + } + else + { + StorageUtl_ReadWord(buf, offsetof(PROPERTYSETHEADER, wByteOrder), + &hdr->wByteOrder); + StorageUtl_ReadWord(buf, offsetof(PROPERTYSETHEADER, wFormat), + &hdr->wFormat); + StorageUtl_ReadDWord(buf, offsetof(PROPERTYSETHEADER, dwOSVer), + &hdr->dwOSVer); + StorageUtl_ReadGUID(buf, offsetof(PROPERTYSETHEADER, clsid), + &hdr->clsid); + StorageUtl_ReadDWord(buf, offsetof(PROPERTYSETHEADER, reserved), + &hdr->reserved); + } + } + TRACE("returning %#lx\n", hr); + return hr; +} + +static HRESULT PropertyStorage_ReadFmtIdOffsetFromStream(IStream *stm, + FORMATIDOFFSET *fmt) +{ + BYTE buf[sizeof(FORMATIDOFFSET)]; + ULONG count = 0; + HRESULT hr; + + assert(stm); + assert(fmt); + hr = IStream_Read(stm, buf, sizeof(buf), &count); + if (SUCCEEDED(hr)) + { + if (count != sizeof(buf)) + { + WARN("read only %ld\n", count); + hr = STG_E_INVALIDHEADER; + } + else + { + StorageUtl_ReadGUID(buf, offsetof(FORMATIDOFFSET, fmtid), + &fmt->fmtid); + StorageUtl_ReadDWord(buf, offsetof(FORMATIDOFFSET, dwOffset), + &fmt->dwOffset); + } + } + TRACE("returning %#lx\n", hr); + return hr; +} + +static HRESULT PropertyStorage_ReadSectionHeaderFromStream(IStream *stm, + PROPERTYSECTIONHEADER *hdr) +{ + BYTE buf[sizeof(PROPERTYSECTIONHEADER)]; + ULONG count = 0; + HRESULT hr; + + assert(stm); + assert(hdr); + hr = IStream_Read(stm, buf, sizeof(buf), &count); + if (SUCCEEDED(hr)) + { + if (count != sizeof(buf)) + { + WARN("read only %ld\n", count); + hr = STG_E_INVALIDHEADER; + } + else + { + StorageUtl_ReadDWord(buf, offsetof(PROPERTYSECTIONHEADER, + cbSection), &hdr->cbSection); + StorageUtl_ReadDWord(buf, offsetof(PROPERTYSECTIONHEADER, + cProperties), &hdr->cProperties); + } + } + TRACE("returning %#lx\n", hr); + return hr; +} + +/* Reads the dictionary from the memory buffer beginning at ptr. Interprets + * the entries according to the values of This->codePage and This->locale. + */ +static HRESULT PropertyStorage_ReadDictionary(PropertyStorage_impl *This, const struct read_buffer *buffer, + size_t offset) +{ + DWORD numEntries, i; + HRESULT hr; + + assert(This->name_to_propid); + assert(This->propid_to_name); + + if (FAILED(hr = buffer_read_dword(buffer, offset, &numEntries))) + return hr; + + TRACE("Reading %ld entries:\n", numEntries); + + offset += sizeof(DWORD); + + for (i = 0; SUCCEEDED(hr) && i < numEntries; i++) + { + PROPID propid; + DWORD cbEntry; + WCHAR ch = 0; + + if (SUCCEEDED(hr = buffer_read_dword(buffer, offset, &propid))) + hr = buffer_read_dword(buffer, offset + sizeof(PROPID), &cbEntry); + if (FAILED(hr)) + break; + + offset += sizeof(PROPID) + sizeof(DWORD); + + if (FAILED(hr = buffer_test_offset(buffer, offset, This->codePage == CP_UNICODE ? + ALIGNED_LENGTH(cbEntry * sizeof(WCHAR), 3) : cbEntry))) + { + WARN("Broken name length for entry %ld.\n", i); + return hr; + } + + /* Make sure the source string is NULL-terminated */ + if (This->codePage != CP_UNICODE) + buffer_read_byte(buffer, offset + cbEntry - 1, (BYTE *)&ch); + else + buffer_read_word(buffer, offset + (cbEntry - 1) * sizeof(WCHAR), &ch); + + if (ch) + { + WARN("Dictionary entry name %ld is not null-terminated.\n", i); + return E_FAIL; + } + + TRACE("Reading entry with ID %#lx, %ld chars, name %s.\n", propid, cbEntry, This->codePage == CP_UNICODE ? + debugstr_wn((WCHAR *)buffer->data, cbEntry) : debugstr_an((char *)buffer->data, cbEntry)); + + hr = PropertyStorage_StoreNameWithId(This, (char *)buffer->data + offset, This->codePage, propid); + /* Unicode entries are padded to DWORD boundaries */ + if (This->codePage == CP_UNICODE) + cbEntry = ALIGNED_LENGTH(cbEntry * sizeof(WCHAR), 3); + + offset += cbEntry; + } + + return hr; +} + +static HRESULT PropertyStorage_ReadFromStream(PropertyStorage_impl *This) +{ + struct read_buffer read_buffer; + PROPERTYSETHEADER hdr; + FORMATIDOFFSET fmtOffset; + PROPERTYSECTIONHEADER sectionHdr; + LARGE_INTEGER seek; + ULONG i; + STATSTG stat; + HRESULT hr; + BYTE *buf = NULL; + ULONG count = 0; + DWORD dictOffset = 0; + + This->dirty = FALSE; + This->highestProp = 0; + hr = IStream_Stat(This->stm, &stat, STATFLAG_NONAME); + if (FAILED(hr)) + goto end; + if (stat.cbSize.HighPart) + { + WARN("stream too big\n"); + /* maximum size varies, but it can't be this big */ + hr = STG_E_INVALIDHEADER; + goto end; + } + if (stat.cbSize.LowPart == 0) + { + /* empty stream is okay */ + hr = S_OK; + goto end; + } + else if (stat.cbSize.LowPart < sizeof(PROPERTYSETHEADER) + + sizeof(FORMATIDOFFSET)) + { + WARN("stream too small\n"); + hr = STG_E_INVALIDHEADER; + goto end; + } + seek.QuadPart = 0; + hr = IStream_Seek(This->stm, seek, STREAM_SEEK_SET, NULL); + if (FAILED(hr)) + goto end; + hr = PropertyStorage_ReadHeaderFromStream(This->stm, &hdr); + /* I've only seen reserved == 1, but the article says I shouldn't disallow + * higher values. + */ + if (hdr.wByteOrder != PROPSETHDR_BYTEORDER_MAGIC || hdr.reserved < 1) + { + WARN("bad magic in prop set header\n"); + hr = STG_E_INVALIDHEADER; + goto end; + } + if (hdr.wFormat != 0 && hdr.wFormat != 1) + { + WARN("bad format version %d\n", hdr.wFormat); + hr = STG_E_INVALIDHEADER; + goto end; + } + This->format = hdr.wFormat; + This->clsid = hdr.clsid; + This->originatorOS = hdr.dwOSVer; + if (PROPSETHDR_OSVER_KIND(hdr.dwOSVer) == PROPSETHDR_OSVER_KIND_MAC) + WARN("File comes from a Mac, strings will probably be screwed up\n"); + hr = PropertyStorage_ReadFmtIdOffsetFromStream(This->stm, &fmtOffset); + if (FAILED(hr)) + goto end; + if (fmtOffset.dwOffset > stat.cbSize.LowPart) + { + WARN("invalid offset %ld (stream length is %ld)\n", fmtOffset.dwOffset, stat.cbSize.LowPart); + hr = STG_E_INVALIDHEADER; + goto end; + } + /* wackiness alert: if the format ID is FMTID_DocSummaryInformation, there + * follows not one, but two sections. The first contains the standard properties + * for the document summary information, and the second consists of user-defined + * properties. This is the only case in which multiple sections are + * allowed. + * Reading the second stream isn't implemented yet. + */ + hr = PropertyStorage_ReadSectionHeaderFromStream(This->stm, §ionHdr); + if (FAILED(hr)) + goto end; + /* The section size includes the section header, so check it */ + if (sectionHdr.cbSection < sizeof(PROPERTYSECTIONHEADER)) + { + WARN("section header too small, got %ld\n", sectionHdr.cbSection); + hr = STG_E_INVALIDHEADER; + goto end; + } + buf = HeapAlloc(GetProcessHeap(), 0, sectionHdr.cbSection - + sizeof(PROPERTYSECTIONHEADER)); + if (!buf) + { + hr = STG_E_INSUFFICIENTMEMORY; + goto end; + } + read_buffer.data = buf; + read_buffer.size = sectionHdr.cbSection - sizeof(sectionHdr); + + hr = IStream_Read(This->stm, read_buffer.data, read_buffer.size, &count); + if (FAILED(hr)) + goto end; + TRACE("Reading %ld properties:\n", sectionHdr.cProperties); + for (i = 0; SUCCEEDED(hr) && i < sectionHdr.cProperties; i++) + { + PROPERTYIDOFFSET *idOffset = (PROPERTYIDOFFSET *)(read_buffer.data + + i * sizeof(PROPERTYIDOFFSET)); + + if (idOffset->dwOffset < sizeof(PROPERTYSECTIONHEADER) || + idOffset->dwOffset > sectionHdr.cbSection - sizeof(DWORD)) + hr = STG_E_INVALIDPOINTER; + else + { + if (idOffset->propid >= PID_FIRST_USABLE && + idOffset->propid < PID_MIN_READONLY && idOffset->propid > + This->highestProp) + This->highestProp = idOffset->propid; + if (idOffset->propid == PID_DICTIONARY) + { + /* Don't read the dictionary yet, its entries depend on the + * code page. Just store the offset so we know to read it + * later. + */ + dictOffset = idOffset->dwOffset; + TRACE("Dictionary offset is %ld\n", dictOffset); + } + else + { + PROPVARIANT prop; + + PropVariantInit(&prop); + if (SUCCEEDED(PropertyStorage_ReadProperty(&prop, &read_buffer, + idOffset->dwOffset - sizeof(PROPERTYSECTIONHEADER), This->codePage, + Allocate_CoTaskMemAlloc, NULL))) + { + TRACE("Read property with ID %#lx, type %d\n", idOffset->propid, prop.vt); + switch(idOffset->propid) + { + case PID_CODEPAGE: + if (prop.vt == VT_I2) + This->codePage = (USHORT)prop.iVal; + break; + case PID_LOCALE: + if (prop.vt == VT_I4) + This->locale = (LCID)prop.lVal; + break; + case PID_BEHAVIOR: + if (prop.vt == VT_I4 && prop.lVal) + This->grfFlags |= PROPSETFLAG_CASE_SENSITIVE; + /* The format should already be 1, but just in case */ + This->format = 1; + break; + default: + hr = PropertyStorage_StorePropWithId(This, + idOffset->propid, &prop, This->codePage); + } + } + PropVariantClear(&prop); + } + } + } + if (!This->codePage) + { + /* default to Unicode unless told not to, as specified on msdn */ + if (This->grfFlags & PROPSETFLAG_ANSI) + This->codePage = GetACP(); + else + This->codePage = CP_UNICODE; + } + if (!This->locale) + This->locale = LOCALE_SYSTEM_DEFAULT; + TRACE("Code page is %d, locale is %ld\n", This->codePage, This->locale); + if (dictOffset) + hr = PropertyStorage_ReadDictionary(This, &read_buffer, dictOffset - sizeof(PROPERTYSECTIONHEADER)); + +end: + HeapFree(GetProcessHeap(), 0, buf); + if (FAILED(hr)) + { + dictionary_destroy(This->name_to_propid); + This->name_to_propid = NULL; + dictionary_destroy(This->propid_to_name); + This->propid_to_name = NULL; + dictionary_destroy(This->propid_to_prop); + This->propid_to_prop = NULL; + } + return hr; +} + +static void PropertyStorage_MakeHeader(PropertyStorage_impl *This, + PROPERTYSETHEADER *hdr) +{ + assert(hdr); + StorageUtl_WriteWord(&hdr->wByteOrder, 0, PROPSETHDR_BYTEORDER_MAGIC); + StorageUtl_WriteWord(&hdr->wFormat, 0, This->format); + StorageUtl_WriteDWord(&hdr->dwOSVer, 0, This->originatorOS); + StorageUtl_WriteGUID(&hdr->clsid, 0, &This->clsid); + StorageUtl_WriteDWord(&hdr->reserved, 0, 1); +} + +static void PropertyStorage_MakeFmtIdOffset(PropertyStorage_impl *This, + FORMATIDOFFSET *fmtOffset) +{ + assert(fmtOffset); + StorageUtl_WriteGUID(fmtOffset, 0, &This->fmtid); + StorageUtl_WriteDWord(fmtOffset, offsetof(FORMATIDOFFSET, dwOffset), + sizeof(PROPERTYSETHEADER) + sizeof(FORMATIDOFFSET)); +} + +static void PropertyStorage_MakeSectionHdr(DWORD cbSection, DWORD numProps, + PROPERTYSECTIONHEADER *hdr) +{ + assert(hdr); + StorageUtl_WriteDWord(hdr, 0, cbSection); + StorageUtl_WriteDWord(hdr, offsetof(PROPERTYSECTIONHEADER, cProperties), numProps); +} + +static void PropertyStorage_MakePropertyIdOffset(DWORD propid, DWORD dwOffset, + PROPERTYIDOFFSET *propIdOffset) +{ + assert(propIdOffset); + StorageUtl_WriteDWord(propIdOffset, 0, propid); + StorageUtl_WriteDWord(propIdOffset, offsetof(PROPERTYIDOFFSET, dwOffset), dwOffset); +} + +static inline HRESULT PropertyStorage_WriteWStringToStream(IStream *stm, + LPCWSTR str, DWORD len, DWORD *written) +{ +#ifdef WORDS_BIGENDIAN + WCHAR *leStr = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR)); + HRESULT hr; + + if (!leStr) + return E_OUTOFMEMORY; + memcpy(leStr, str, len * sizeof(WCHAR)); + PropertyStorage_ByteSwapString(leStr, len); + hr = IStream_Write(stm, leStr, len, written); + HeapFree(GetProcessHeap(), 0, leStr); + return hr; +#else + return IStream_Write(stm, str, len * sizeof(WCHAR), written); +#endif +} + +struct DictionaryClosure +{ + HRESULT hr; + DWORD bytesWritten; +}; + +static BOOL PropertyStorage_DictionaryWriter(const void *key, + const void *value, void *extra, void *closure) +{ + PropertyStorage_impl *This = extra; + struct DictionaryClosure *c = closure; + DWORD propid, keyLen; + ULONG count; + + assert(key); + assert(closure); + StorageUtl_WriteDWord(&propid, 0, PtrToUlong(value)); + c->hr = IStream_Write(This->stm, &propid, sizeof(propid), &count); + if (FAILED(c->hr)) + goto end; + c->bytesWritten += sizeof(DWORD); + if (This->codePage == CP_UNICODE) + { + DWORD pad = 0, pad_len; + + StorageUtl_WriteDWord(&keyLen, 0, lstrlenW((LPCWSTR)key) + 1); + c->hr = IStream_Write(This->stm, &keyLen, sizeof(keyLen), &count); + if (FAILED(c->hr)) + goto end; + c->bytesWritten += sizeof(DWORD); + c->hr = PropertyStorage_WriteWStringToStream(This->stm, key, keyLen, + &count); + if (FAILED(c->hr)) + goto end; + keyLen *= sizeof(WCHAR); + c->bytesWritten += keyLen; + + /* Align to 4 bytes. */ + pad_len = sizeof(DWORD) - keyLen % sizeof(DWORD); + if (pad_len) + { + c->hr = IStream_Write(This->stm, &pad, pad_len, &count); + if (FAILED(c->hr)) + goto end; + c->bytesWritten += pad_len; + } + } + else + { + StorageUtl_WriteDWord(&keyLen, 0, strlen((LPCSTR)key) + 1); + c->hr = IStream_Write(This->stm, &keyLen, sizeof(keyLen), &count); + if (FAILED(c->hr)) + goto end; + c->bytesWritten += sizeof(DWORD); + c->hr = IStream_Write(This->stm, key, keyLen, &count); + if (FAILED(c->hr)) + goto end; + c->bytesWritten += keyLen; + } +end: + return SUCCEEDED(c->hr); +} + +#define SECTIONHEADER_OFFSET sizeof(PROPERTYSETHEADER) + sizeof(FORMATIDOFFSET) + +/* Writes the dictionary to the stream. Assumes without checking that the + * dictionary isn't empty. + */ +static HRESULT PropertyStorage_WriteDictionaryToStream( + PropertyStorage_impl *This, DWORD *sectionOffset) +{ + HRESULT hr; + LARGE_INTEGER seek; + PROPERTYIDOFFSET propIdOffset; + ULONG count; + DWORD dwTemp; + struct DictionaryClosure closure; + + assert(sectionOffset); + + /* The dictionary's always the first property written, so seek to its + * spot. + */ + seek.QuadPart = SECTIONHEADER_OFFSET + sizeof(PROPERTYSECTIONHEADER); + hr = IStream_Seek(This->stm, seek, STREAM_SEEK_SET, NULL); + if (FAILED(hr)) + goto end; + PropertyStorage_MakePropertyIdOffset(PID_DICTIONARY, *sectionOffset, + &propIdOffset); + hr = IStream_Write(This->stm, &propIdOffset, sizeof(propIdOffset), &count); + if (FAILED(hr)) + goto end; + + seek.QuadPart = SECTIONHEADER_OFFSET + *sectionOffset; + hr = IStream_Seek(This->stm, seek, STREAM_SEEK_SET, NULL); + if (FAILED(hr)) + goto end; + StorageUtl_WriteDWord(&dwTemp, 0, dictionary_num_entries(This->name_to_propid)); + hr = IStream_Write(This->stm, &dwTemp, sizeof(dwTemp), &count); + if (FAILED(hr)) + goto end; + *sectionOffset += sizeof(dwTemp); + + closure.hr = S_OK; + closure.bytesWritten = 0; + dictionary_enumerate(This->name_to_propid, PropertyStorage_DictionaryWriter, + &closure); + hr = closure.hr; + if (FAILED(hr)) + goto end; + *sectionOffset += closure.bytesWritten; + if (closure.bytesWritten % sizeof(DWORD)) + { + DWORD padding = sizeof(DWORD) - closure.bytesWritten % sizeof(DWORD); + TRACE("adding %ld bytes of padding\n", padding); + *sectionOffset += padding; + } + +end: + return hr; +} + +static HRESULT PropertyStorage_WritePropertyToStream(PropertyStorage_impl *This, + DWORD propNum, DWORD propid, const PROPVARIANT *var, DWORD *sectionOffset) +{ + DWORD len, dwType, dwTemp, bytesWritten; + HRESULT hr; + LARGE_INTEGER seek; + PROPERTYIDOFFSET propIdOffset; + ULARGE_INTEGER ularge; + ULONG count; + + assert(var); + assert(sectionOffset); + + TRACE("%p, %ld, %#lx, %d, %ld.\n", This, propNum, propid, var->vt, + *sectionOffset); + + seek.QuadPart = SECTIONHEADER_OFFSET + sizeof(PROPERTYSECTIONHEADER) + + propNum * sizeof(PROPERTYIDOFFSET); + hr = IStream_Seek(This->stm, seek, STREAM_SEEK_SET, NULL); + if (FAILED(hr)) + goto end; + PropertyStorage_MakePropertyIdOffset(propid, *sectionOffset, &propIdOffset); + hr = IStream_Write(This->stm, &propIdOffset, sizeof(propIdOffset), &count); + if (FAILED(hr)) + goto end; + + seek.QuadPart = SECTIONHEADER_OFFSET + *sectionOffset; + hr = IStream_Seek(This->stm, seek, STREAM_SEEK_SET, NULL); + if (FAILED(hr)) + goto end; + StorageUtl_WriteDWord(&dwType, 0, var->vt); + hr = IStream_Write(This->stm, &dwType, sizeof(dwType), &count); + if (FAILED(hr)) + goto end; + *sectionOffset += sizeof(dwType); + + switch (var->vt) + { + case VT_EMPTY: + case VT_NULL: + bytesWritten = 0; + break; + case VT_I1: + case VT_UI1: + hr = IStream_Write(This->stm, &var->cVal, sizeof(var->cVal), + &count); + bytesWritten = count; + break; + case VT_I2: + case VT_UI2: + { + WORD wTemp; + + StorageUtl_WriteWord(&wTemp, 0, var->iVal); + hr = IStream_Write(This->stm, &wTemp, sizeof(wTemp), &count); + bytesWritten = count; + break; + } + case VT_I4: + case VT_UI4: + { + StorageUtl_WriteDWord(&dwTemp, 0, var->lVal); + hr = IStream_Write(This->stm, &dwTemp, sizeof(dwTemp), &count); + bytesWritten = count; + break; + } + case VT_I8: + case VT_UI8: + { + StorageUtl_WriteULargeInteger(&ularge, 0, &var->uhVal); + hr = IStream_Write(This->stm, &ularge, sizeof(ularge), &bytesWritten); + break; + } + case VT_LPSTR: + { + if (This->codePage == CP_UNICODE) + len = (lstrlenW(var->pwszVal) + 1) * sizeof(WCHAR); + else + len = lstrlenA(var->pszVal) + 1; + StorageUtl_WriteDWord(&dwTemp, 0, len); + hr = IStream_Write(This->stm, &dwTemp, sizeof(dwTemp), &count); + if (FAILED(hr)) + goto end; + hr = IStream_Write(This->stm, var->pszVal, len, &count); + bytesWritten = count + sizeof(DWORD); + break; + } + case VT_BSTR: + { + if (This->codePage == CP_UNICODE) + { + len = SysStringByteLen(var->bstrVal) + sizeof(WCHAR); + StorageUtl_WriteDWord(&dwTemp, 0, len); + hr = IStream_Write(This->stm, &dwTemp, sizeof(dwTemp), &count); + if (SUCCEEDED(hr)) + hr = IStream_Write(This->stm, var->bstrVal, len, &count); + } + else + { + char *str; + + len = WideCharToMultiByte(This->codePage, 0, var->bstrVal, SysStringLen(var->bstrVal) + 1, + NULL, 0, NULL, NULL); + + str = heap_alloc(len); + if (!str) + { + hr = E_OUTOFMEMORY; + goto end; + } + + WideCharToMultiByte(This->codePage, 0, var->bstrVal, SysStringLen(var->bstrVal), + str, len, NULL, NULL); + StorageUtl_WriteDWord(&dwTemp, 0, len); + hr = IStream_Write(This->stm, &dwTemp, sizeof(dwTemp), &count); + if (SUCCEEDED(hr)) + hr = IStream_Write(This->stm, str, len, &count); + heap_free(str); + } + + bytesWritten = count + sizeof(DWORD); + break; + } + case VT_LPWSTR: + { + len = lstrlenW(var->pwszVal) + 1; + + StorageUtl_WriteDWord(&dwTemp, 0, len); + hr = IStream_Write(This->stm, &dwTemp, sizeof(dwTemp), &count); + if (FAILED(hr)) + goto end; + hr = IStream_Write(This->stm, var->pwszVal, len * sizeof(WCHAR), + &count); + bytesWritten = count + sizeof(DWORD); + break; + } + case VT_FILETIME: + { + FILETIME temp; + + StorageUtl_WriteULargeInteger(&temp, 0, (const ULARGE_INTEGER *)&var->filetime); + hr = IStream_Write(This->stm, &temp, sizeof(temp), &count); + bytesWritten = count; + break; + } + case VT_CF: + { + DWORD cf_hdr[2]; + + len = var->pclipdata->cbSize; + StorageUtl_WriteDWord(&cf_hdr[0], 0, len + 8); + StorageUtl_WriteDWord(&cf_hdr[1], 0, var->pclipdata->ulClipFmt); + hr = IStream_Write(This->stm, cf_hdr, sizeof(cf_hdr), &count); + if (FAILED(hr)) + goto end; + hr = IStream_Write(This->stm, var->pclipdata->pClipData, + len - sizeof(var->pclipdata->ulClipFmt), &count); + if (FAILED(hr)) + goto end; + bytesWritten = count + sizeof cf_hdr; + break; + } + case VT_CLSID: + { + CLSID temp; + + StorageUtl_WriteGUID(&temp, 0, var->puuid); + hr = IStream_Write(This->stm, &temp, sizeof(temp), &count); + bytesWritten = count; + break; + } + case VT_BLOB: + { + StorageUtl_WriteDWord(&dwTemp, 0, var->blob.cbSize); + hr = IStream_Write(This->stm, &dwTemp, sizeof(dwTemp), &count); + if (FAILED(hr)) + goto end; + hr = IStream_Write(This->stm, var->blob.pBlobData, var->blob.cbSize, &count); + bytesWritten = count + sizeof(DWORD); + break; + } + default: + FIXME("unsupported type: %d\n", var->vt); + return STG_E_INVALIDPARAMETER; + } + + if (SUCCEEDED(hr)) + { + *sectionOffset += bytesWritten; + if (bytesWritten % sizeof(DWORD)) + { + DWORD padding = sizeof(DWORD) - bytesWritten % sizeof(DWORD); + TRACE("adding %ld bytes of padding\n", padding); + *sectionOffset += padding; + } + } + +end: + return hr; +} + +struct PropertyClosure +{ + HRESULT hr; + DWORD propNum; + DWORD *sectionOffset; +}; + +static BOOL PropertyStorage_PropertiesWriter(const void *key, const void *value, + void *extra, void *closure) +{ + PropertyStorage_impl *This = extra; + struct PropertyClosure *c = closure; + + assert(key); + assert(value); + assert(extra); + assert(closure); + c->hr = PropertyStorage_WritePropertyToStream(This, c->propNum++, + PtrToUlong(key), value, c->sectionOffset); + return SUCCEEDED(c->hr); +} + +static HRESULT PropertyStorage_WritePropertiesToStream( + PropertyStorage_impl *This, DWORD startingPropNum, DWORD *sectionOffset) +{ + struct PropertyClosure closure; + + assert(sectionOffset); + closure.hr = S_OK; + closure.propNum = startingPropNum; + closure.sectionOffset = sectionOffset; + dictionary_enumerate(This->propid_to_prop, PropertyStorage_PropertiesWriter, + &closure); + return closure.hr; +} + +static HRESULT PropertyStorage_WriteHeadersToStream(PropertyStorage_impl *This) +{ + HRESULT hr; + ULONG count = 0; + LARGE_INTEGER seek = { {0} }; + PROPERTYSETHEADER hdr; + FORMATIDOFFSET fmtOffset; + + hr = IStream_Seek(This->stm, seek, STREAM_SEEK_SET, NULL); + if (FAILED(hr)) + goto end; + PropertyStorage_MakeHeader(This, &hdr); + hr = IStream_Write(This->stm, &hdr, sizeof(hdr), &count); + if (FAILED(hr)) + goto end; + if (count != sizeof(hdr)) + { + hr = STG_E_WRITEFAULT; + goto end; + } + + PropertyStorage_MakeFmtIdOffset(This, &fmtOffset); + hr = IStream_Write(This->stm, &fmtOffset, sizeof(fmtOffset), &count); + if (FAILED(hr)) + goto end; + if (count != sizeof(fmtOffset)) + { + hr = STG_E_WRITEFAULT; + goto end; + } + hr = S_OK; + +end: + return hr; +} + +static HRESULT PropertyStorage_WriteToStream(PropertyStorage_impl *This) +{ + PROPERTYSECTIONHEADER sectionHdr; + HRESULT hr; + ULONG count; + LARGE_INTEGER seek; + DWORD numProps, prop, sectionOffset, dwTemp; + PROPVARIANT var; + + PropertyStorage_WriteHeadersToStream(This); + + /* Count properties. Always at least one property, the code page */ + numProps = 1; + if (dictionary_num_entries(This->name_to_propid)) + numProps++; + if (This->locale != LOCALE_SYSTEM_DEFAULT) + numProps++; + if (This->grfFlags & PROPSETFLAG_CASE_SENSITIVE) + numProps++; + numProps += dictionary_num_entries(This->propid_to_prop); + + /* Write section header with 0 bytes right now, I'll adjust it after + * writing properties. + */ + PropertyStorage_MakeSectionHdr(0, numProps, §ionHdr); + seek.QuadPart = SECTIONHEADER_OFFSET; + hr = IStream_Seek(This->stm, seek, STREAM_SEEK_SET, NULL); + if (FAILED(hr)) + goto end; + hr = IStream_Write(This->stm, §ionHdr, sizeof(sectionHdr), &count); + if (FAILED(hr)) + goto end; + + prop = 0; + sectionOffset = sizeof(PROPERTYSECTIONHEADER) + + numProps * sizeof(PROPERTYIDOFFSET); + + if (dictionary_num_entries(This->name_to_propid)) + { + prop++; + hr = PropertyStorage_WriteDictionaryToStream(This, §ionOffset); + if (FAILED(hr)) + goto end; + } + + PropVariantInit(&var); + + var.vt = VT_I2; + var.iVal = This->codePage; + hr = PropertyStorage_WritePropertyToStream(This, prop++, PID_CODEPAGE, + &var, §ionOffset); + if (FAILED(hr)) + goto end; + + if (This->locale != LOCALE_SYSTEM_DEFAULT) + { + var.vt = VT_I4; + var.lVal = This->locale; + hr = PropertyStorage_WritePropertyToStream(This, prop++, PID_LOCALE, + &var, §ionOffset); + if (FAILED(hr)) + goto end; + } + + if (This->grfFlags & PROPSETFLAG_CASE_SENSITIVE) + { + var.vt = VT_I4; + var.lVal = 1; + hr = PropertyStorage_WritePropertyToStream(This, prop++, PID_BEHAVIOR, + &var, §ionOffset); + if (FAILED(hr)) + goto end; + } + + hr = PropertyStorage_WritePropertiesToStream(This, prop, §ionOffset); + if (FAILED(hr)) + goto end; + + /* Now write the byte count of the section */ + seek.QuadPart = SECTIONHEADER_OFFSET; + hr = IStream_Seek(This->stm, seek, STREAM_SEEK_SET, NULL); + if (FAILED(hr)) + goto end; + StorageUtl_WriteDWord(&dwTemp, 0, sectionOffset); + hr = IStream_Write(This->stm, &dwTemp, sizeof(dwTemp), &count); + +end: + return hr; +} + +/*********************************************************************** + * PropertyStorage_Construct + */ +static void PropertyStorage_DestroyDictionaries(PropertyStorage_impl *This) +{ + dictionary_destroy(This->name_to_propid); + This->name_to_propid = NULL; + dictionary_destroy(This->propid_to_name); + This->propid_to_name = NULL; + dictionary_destroy(This->propid_to_prop); + This->propid_to_prop = NULL; +} + +static HRESULT PropertyStorage_CreateDictionaries(PropertyStorage_impl *This) +{ + HRESULT hr = S_OK; + + This->name_to_propid = dictionary_create( + PropertyStorage_PropNameCompare, PropertyStorage_PropNameDestroy, + This); + if (!This->name_to_propid) + { + hr = STG_E_INSUFFICIENTMEMORY; + goto end; + } + This->propid_to_name = dictionary_create(PropertyStorage_PropCompare, + NULL, This); + if (!This->propid_to_name) + { + hr = STG_E_INSUFFICIENTMEMORY; + goto end; + } + This->propid_to_prop = dictionary_create(PropertyStorage_PropCompare, + PropertyStorage_PropertyDestroy, This); + if (!This->propid_to_prop) + { + hr = STG_E_INSUFFICIENTMEMORY; + goto end; + } +end: + if (FAILED(hr)) + PropertyStorage_DestroyDictionaries(This); + return hr; +} + +static HRESULT PropertyStorage_BaseConstruct(IStream *stm, + REFFMTID rfmtid, DWORD grfMode, PropertyStorage_impl **pps) +{ + HRESULT hr = S_OK; + + assert(pps); + assert(rfmtid); + *pps = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof **pps); + if (!*pps) + return E_OUTOFMEMORY; + + (*pps)->IPropertyStorage_iface.lpVtbl = &IPropertyStorage_Vtbl; + (*pps)->ref = 1; + InitializeCriticalSection(&(*pps)->cs); + (*pps)->cs.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": PropertyStorage_impl.cs"); + (*pps)->stm = stm; + (*pps)->fmtid = *rfmtid; + (*pps)->grfMode = grfMode; + + hr = PropertyStorage_CreateDictionaries(*pps); + if (FAILED(hr)) + { + (*pps)->cs.DebugInfo->Spare[0] = 0; + DeleteCriticalSection(&(*pps)->cs); + HeapFree(GetProcessHeap(), 0, *pps); + *pps = NULL; + } + else IStream_AddRef( stm ); + + return hr; +} + +static HRESULT PropertyStorage_ConstructFromStream(IStream *stm, + REFFMTID rfmtid, DWORD grfMode, IPropertyStorage** pps) +{ + PropertyStorage_impl *ps; + HRESULT hr; + + assert(pps); + hr = PropertyStorage_BaseConstruct(stm, rfmtid, grfMode, &ps); + if (SUCCEEDED(hr)) + { + hr = PropertyStorage_ReadFromStream(ps); + if (SUCCEEDED(hr)) + { + *pps = &ps->IPropertyStorage_iface; + TRACE("PropertyStorage %p constructed\n", ps); + hr = S_OK; + } + else IPropertyStorage_Release( &ps->IPropertyStorage_iface ); + } + return hr; +} + +static HRESULT PropertyStorage_ConstructEmpty(IStream *stm, + REFFMTID rfmtid, DWORD grfFlags, DWORD grfMode, IPropertyStorage** pps) +{ + PropertyStorage_impl *ps; + HRESULT hr; + + assert(pps); + hr = PropertyStorage_BaseConstruct(stm, rfmtid, grfMode, &ps); + if (SUCCEEDED(hr)) + { + ps->format = 0; + ps->grfFlags = grfFlags; + if (ps->grfFlags & PROPSETFLAG_CASE_SENSITIVE) + ps->format = 1; + /* default to Unicode unless told not to, as specified on msdn */ + if (ps->grfFlags & PROPSETFLAG_ANSI) + ps->codePage = GetACP(); + else + ps->codePage = CP_UNICODE; + ps->locale = LOCALE_SYSTEM_DEFAULT; + TRACE("Code page is %d, locale is %ld\n", ps->codePage, ps->locale); + *pps = &ps->IPropertyStorage_iface; + TRACE("PropertyStorage %p constructed\n", ps); + hr = S_OK; + } + return hr; +} + + +/*********************************************************************** + * Implementation of IPropertySetStorage + */ + +struct enum_stat_propset_stg +{ + IEnumSTATPROPSETSTG IEnumSTATPROPSETSTG_iface; + LONG refcount; + STATPROPSETSTG *stats; + size_t current; + size_t count; +}; + +static struct enum_stat_propset_stg *impl_from_IEnumSTATPROPSETSTG(IEnumSTATPROPSETSTG *iface) +{ + return CONTAINING_RECORD(iface, struct enum_stat_propset_stg, IEnumSTATPROPSETSTG_iface); +} + +static HRESULT WINAPI enum_stat_propset_stg_QueryInterface(IEnumSTATPROPSETSTG *iface, REFIID riid, void **obj) +{ + TRACE("%p, %s, %p.\n", iface, debugstr_guid(riid), obj); + + if (IsEqualIID(riid, &IID_IEnumSTATPROPSETSTG) || + IsEqualIID(riid, &IID_IUnknown)) + { + *obj = iface; + IEnumSTATPROPSETSTG_AddRef(iface); + return S_OK; + } + + WARN("Unsupported interface %s.\n", debugstr_guid(riid)); + return E_NOINTERFACE; +} + +static ULONG WINAPI enum_stat_propset_stg_AddRef(IEnumSTATPROPSETSTG *iface) +{ + struct enum_stat_propset_stg *psenum = impl_from_IEnumSTATPROPSETSTG(iface); + LONG refcount = InterlockedIncrement(&psenum->refcount); + + TRACE("%p, refcount %lu.\n", iface, refcount); + + return refcount; +} + +static ULONG WINAPI enum_stat_propset_stg_Release(IEnumSTATPROPSETSTG *iface) +{ + struct enum_stat_propset_stg *psenum = impl_from_IEnumSTATPROPSETSTG(iface); + LONG refcount = InterlockedDecrement(&psenum->refcount); + + TRACE("%p, refcount %lu.\n", iface, refcount); + + if (!refcount) + { + heap_free(psenum->stats); + heap_free(psenum); + } + + return refcount; +} + +static HRESULT WINAPI enum_stat_propset_stg_Next(IEnumSTATPROPSETSTG *iface, ULONG celt, + STATPROPSETSTG *ret, ULONG *fetched) +{ + struct enum_stat_propset_stg *psenum = impl_from_IEnumSTATPROPSETSTG(iface); + ULONG count = 0; + + TRACE("%p, %lu, %p, %p.\n", iface, celt, ret, fetched); + + if (psenum->current == ~0u) + psenum->current = 0; + + while (count < celt && psenum->current < psenum->count) + ret[count++] = psenum->stats[psenum->current++]; + + if (fetched) + *fetched = count; + + return count < celt ? S_FALSE : S_OK; +} + +static HRESULT WINAPI enum_stat_propset_stg_Skip(IEnumSTATPROPSETSTG *iface, ULONG celt) +{ + FIXME("%p, %lu.\n", iface, celt); + + return S_OK; +} + +static HRESULT WINAPI enum_stat_propset_stg_Reset(IEnumSTATPROPSETSTG *iface) +{ + struct enum_stat_propset_stg *psenum = impl_from_IEnumSTATPROPSETSTG(iface); + + TRACE("%p.\n", iface); + + psenum->current = ~0u; + + return S_OK; +} + +static HRESULT WINAPI enum_stat_propset_stg_Clone(IEnumSTATPROPSETSTG *iface, IEnumSTATPROPSETSTG **ppenum) +{ + FIXME("%p, %p.\n", iface, ppenum); + + return E_NOTIMPL; +} + +static const IEnumSTATPROPSETSTGVtbl enum_stat_propset_stg_vtbl = +{ + enum_stat_propset_stg_QueryInterface, + enum_stat_propset_stg_AddRef, + enum_stat_propset_stg_Release, + enum_stat_propset_stg_Next, + enum_stat_propset_stg_Skip, + enum_stat_propset_stg_Reset, + enum_stat_propset_stg_Clone, +}; + +static HRESULT create_enum_stat_propset_stg(StorageImpl *storage, IEnumSTATPROPSETSTG **ret) +{ + IStorage *stg = &storage->base.IStorage_iface; + IEnumSTATSTG *penum = NULL; + STATSTG stat; + ULONG count; + HRESULT hr; + + struct enum_stat_propset_stg *enum_obj; + + enum_obj = heap_alloc_zero(sizeof(*enum_obj)); + if (!enum_obj) + return E_OUTOFMEMORY; + + enum_obj->IEnumSTATPROPSETSTG_iface.lpVtbl = &enum_stat_propset_stg_vtbl; + enum_obj->refcount = 1; + + /* add all the property set elements into a list */ + hr = IStorage_EnumElements(stg, 0, NULL, 0, &penum); + if (FAILED(hr)) + goto done; + + /* Allocate stats array and fill it. */ + while ((hr = IEnumSTATSTG_Next(penum, 1, &stat, &count)) == S_OK) + { + enum_obj->count++; + CoTaskMemFree(stat.pwcsName); + } + + if (FAILED(hr)) + goto done; + + enum_obj->stats = heap_alloc(enum_obj->count * sizeof(*enum_obj->stats)); + if (!enum_obj->stats) + { + hr = E_OUTOFMEMORY; + goto done; + } + enum_obj->count = 0; + + if (FAILED(hr = IEnumSTATSTG_Reset(penum))) + goto done; + + while (IEnumSTATSTG_Next(penum, 1, &stat, &count) == S_OK) + { + if (!stat.pwcsName) + continue; + + if (stat.pwcsName[0] == 5 && stat.type == STGTY_STREAM) + { + STATPROPSETSTG *ptr = &enum_obj->stats[enum_obj->count++]; + + PropStgNameToFmtId(stat.pwcsName, &ptr->fmtid); + + TRACE("adding %s - %s.\n", debugstr_w(stat.pwcsName), debugstr_guid(&ptr->fmtid)); + + ptr->mtime = stat.mtime; + ptr->atime = stat.atime; + ptr->ctime = stat.ctime; + ptr->grfFlags = stat.grfMode; + ptr->clsid = stat.clsid; + } + CoTaskMemFree(stat.pwcsName); + } + +done: + + if (penum) + IEnumSTATSTG_Release(penum); + + if (SUCCEEDED(hr)) + { + *ret = &enum_obj->IEnumSTATPROPSETSTG_iface; + } + else + { + *ret = NULL; + IEnumSTATPROPSETSTG_Release(&enum_obj->IEnumSTATPROPSETSTG_iface); + } + + return hr; +} + +/************************************************************************ + * IPropertySetStorage_fnQueryInterface (IUnknown) + * + * This method forwards to the common QueryInterface implementation + */ +static HRESULT WINAPI IPropertySetStorage_fnQueryInterface( + IPropertySetStorage *ppstg, + REFIID riid, + void** ppvObject) +{ + StorageImpl *This = impl_from_IPropertySetStorage(ppstg); + return IStorage_QueryInterface( &This->base.IStorage_iface, riid, ppvObject ); +} + +/************************************************************************ + * IPropertySetStorage_fnAddRef (IUnknown) + * + * This method forwards to the common AddRef implementation + */ +static ULONG WINAPI IPropertySetStorage_fnAddRef( + IPropertySetStorage *ppstg) +{ + StorageImpl *This = impl_from_IPropertySetStorage(ppstg); + return IStorage_AddRef( &This->base.IStorage_iface ); +} + +/************************************************************************ + * IPropertySetStorage_fnRelease (IUnknown) + * + * This method forwards to the common Release implementation + */ +static ULONG WINAPI IPropertySetStorage_fnRelease( + IPropertySetStorage *ppstg) +{ + StorageImpl *This = impl_from_IPropertySetStorage(ppstg); + return IStorage_Release( &This->base.IStorage_iface ); +} + +/************************************************************************ + * IPropertySetStorage_fnCreate (IPropertySetStorage) + */ +static HRESULT WINAPI IPropertySetStorage_fnCreate( + IPropertySetStorage *ppstg, + REFFMTID rfmtid, + const CLSID* pclsid, + DWORD grfFlags, + DWORD grfMode, + IPropertyStorage** ppprstg) +{ + StorageImpl *This = impl_from_IPropertySetStorage(ppstg); + WCHAR name[CCH_MAX_PROPSTG_NAME + 1]; + IStream *stm = NULL; + HRESULT r; + + TRACE("%p, %s %#lx, %#lx, %p.\n", This, debugstr_guid(rfmtid), grfFlags, + grfMode, ppprstg); + + /* be picky */ + if (grfMode != (STGM_CREATE|STGM_READWRITE|STGM_SHARE_EXCLUSIVE)) + { + r = STG_E_INVALIDFLAG; + goto end; + } + + if (!rfmtid) + { + r = E_INVALIDARG; + goto end; + } + + /* FIXME: if (grfFlags & PROPSETFLAG_NONSIMPLE), we need to create a + * storage, not a stream. For now, disallow it. + */ + if (grfFlags & PROPSETFLAG_NONSIMPLE) + { + FIXME("PROPSETFLAG_NONSIMPLE not supported\n"); + r = STG_E_INVALIDFLAG; + goto end; + } + + r = FmtIdToPropStgName(rfmtid, name); + if (FAILED(r)) + goto end; + + r = IStorage_CreateStream( &This->base.IStorage_iface, name, grfMode, 0, 0, &stm ); + if (FAILED(r)) + goto end; + + r = PropertyStorage_ConstructEmpty(stm, rfmtid, grfFlags, grfMode, ppprstg); + + IStream_Release( stm ); + +end: + TRACE("returning %#lx\n", r); + return r; +} + +/************************************************************************ + * IPropertySetStorage_fnOpen (IPropertySetStorage) + */ +static HRESULT WINAPI IPropertySetStorage_fnOpen( + IPropertySetStorage *ppstg, + REFFMTID rfmtid, + DWORD grfMode, + IPropertyStorage** ppprstg) +{ + StorageImpl *This = impl_from_IPropertySetStorage(ppstg); + IStream *stm = NULL; + WCHAR name[CCH_MAX_PROPSTG_NAME + 1]; + HRESULT r; + + TRACE("%p, %s, %#lx, %p.\n", This, debugstr_guid(rfmtid), grfMode, ppprstg); + + /* be picky */ + if (grfMode != (STGM_READWRITE|STGM_SHARE_EXCLUSIVE) && + grfMode != (STGM_READ|STGM_SHARE_EXCLUSIVE)) + { + r = STG_E_INVALIDFLAG; + goto end; + } + + if (!rfmtid) + { + r = E_INVALIDARG; + goto end; + } + + r = FmtIdToPropStgName(rfmtid, name); + if (FAILED(r)) + goto end; + + r = IStorage_OpenStream( &This->base.IStorage_iface, name, 0, grfMode, 0, &stm ); + if (FAILED(r)) + goto end; + + r = PropertyStorage_ConstructFromStream(stm, rfmtid, grfMode, ppprstg); + + IStream_Release( stm ); + +end: + TRACE("returning %#lx\n", r); + return r; +} + +/************************************************************************ + * IPropertySetStorage_fnDelete (IPropertySetStorage) + */ +static HRESULT WINAPI IPropertySetStorage_fnDelete( + IPropertySetStorage *ppstg, + REFFMTID rfmtid) +{ + StorageImpl *This = impl_from_IPropertySetStorage(ppstg); + WCHAR name[CCH_MAX_PROPSTG_NAME + 1]; + HRESULT r; + + TRACE("%p %s\n", This, debugstr_guid(rfmtid)); + + if (!rfmtid) + return E_INVALIDARG; + + r = FmtIdToPropStgName(rfmtid, name); + if (FAILED(r)) + return r; + + return IStorage_DestroyElement(&This->base.IStorage_iface, name); +} + +static HRESULT WINAPI IPropertySetStorage_fnEnum(IPropertySetStorage *iface, IEnumSTATPROPSETSTG **enum_obj) +{ + StorageImpl *storage = impl_from_IPropertySetStorage(iface); + + TRACE("%p, %p.\n", iface, enum_obj); + + if (!enum_obj) + return E_INVALIDARG; + + return create_enum_stat_propset_stg(storage, enum_obj); +} + +/*********************************************************************** + * vtables + */ +const IPropertySetStorageVtbl IPropertySetStorage_Vtbl = +{ + IPropertySetStorage_fnQueryInterface, + IPropertySetStorage_fnAddRef, + IPropertySetStorage_fnRelease, + IPropertySetStorage_fnCreate, + IPropertySetStorage_fnOpen, + IPropertySetStorage_fnDelete, + IPropertySetStorage_fnEnum +}; + +static const IPropertyStorageVtbl IPropertyStorage_Vtbl = +{ + IPropertyStorage_fnQueryInterface, + IPropertyStorage_fnAddRef, + IPropertyStorage_fnRelease, + IPropertyStorage_fnReadMultiple, + IPropertyStorage_fnWriteMultiple, + IPropertyStorage_fnDeleteMultiple, + IPropertyStorage_fnReadPropertyNames, + IPropertyStorage_fnWritePropertyNames, + IPropertyStorage_fnDeletePropertyNames, + IPropertyStorage_fnCommit, + IPropertyStorage_fnRevert, + IPropertyStorage_fnEnum, + IPropertyStorage_fnSetTimes, + IPropertyStorage_fnSetClass, + IPropertyStorage_fnStat, +}; + /*********************************************************************** * Format ID <-> name conversion */ @@ -197,3 +3136,144 @@ HRESULT WINAPI PropStgNameToFmtId(const LPOLESTR str, FMTID *rfmtid) end: return hr; } + +HRESULT WINAPI StgCreatePropStg(IUnknown *unk, REFFMTID fmt, const CLSID *clsid, + DWORD flags, DWORD reserved, IPropertyStorage **prop_stg) +{ + IStorage *stg; + IStream *stm; + HRESULT r; + + TRACE("%p, %s, %s, %#lx, %ld, %p.\n", unk, debugstr_guid(fmt), debugstr_guid(clsid), flags, reserved, prop_stg); + + if (!fmt || reserved) + { + r = E_INVALIDARG; + goto end; + } + + if (flags & PROPSETFLAG_NONSIMPLE) + { + r = IUnknown_QueryInterface(unk, &IID_IStorage, (void **)&stg); + if (FAILED(r)) + goto end; + + /* FIXME: if (flags & PROPSETFLAG_NONSIMPLE), we need to create a + * storage, not a stream. For now, disallow it. + */ + FIXME("PROPSETFLAG_NONSIMPLE not supported\n"); + IStorage_Release(stg); + r = STG_E_INVALIDFLAG; + } + else + { + r = IUnknown_QueryInterface(unk, &IID_IStream, (void **)&stm); + if (FAILED(r)) + goto end; + + r = PropertyStorage_ConstructEmpty(stm, fmt, flags, + STGM_CREATE|STGM_READWRITE|STGM_SHARE_EXCLUSIVE, prop_stg); + + IStream_Release( stm ); + } + +end: + TRACE("returning %#lx\n", r); + return r; +} + +HRESULT WINAPI StgOpenPropStg(IUnknown *unk, REFFMTID fmt, DWORD flags, + DWORD reserved, IPropertyStorage **prop_stg) +{ + IStorage *stg; + IStream *stm; + HRESULT r; + + TRACE("%p, %s, %#lx, %ld, %p.\n", unk, debugstr_guid(fmt), flags, reserved, prop_stg); + + if (!fmt || reserved) + { + r = E_INVALIDARG; + goto end; + } + + if (flags & PROPSETFLAG_NONSIMPLE) + { + r = IUnknown_QueryInterface(unk, &IID_IStorage, (void **)&stg); + if (FAILED(r)) + goto end; + + /* FIXME: if (flags & PROPSETFLAG_NONSIMPLE), we need to open a + * storage, not a stream. For now, disallow it. + */ + FIXME("PROPSETFLAG_NONSIMPLE not supported\n"); + IStorage_Release(stg); + r = STG_E_INVALIDFLAG; + } + else + { + r = IUnknown_QueryInterface(unk, &IID_IStream, (void **)&stm); + if (FAILED(r)) + goto end; + + r = PropertyStorage_ConstructFromStream(stm, fmt, + STGM_READWRITE|STGM_SHARE_EXCLUSIVE, prop_stg); + + IStream_Release( stm ); + } + +end: + TRACE("returning %#lx\n", r); + return r; +} + +#ifdef __i386__ /* thiscall functions are i386-specific */ + +#define DEFINE_STDCALL_WRAPPER(num,func,args) \ + __ASM_STDCALL_FUNC(func, args, \ + "popl %eax\n\t" \ + "popl %ecx\n\t" \ + "pushl %eax\n\t" \ + "movl (%ecx), %eax\n\t" \ + "jmp *(4*(" #num "))(%eax)" ) + +DEFINE_STDCALL_WRAPPER(0,Allocate_PMemoryAllocator,8) +extern void* WINAPI Allocate_PMemoryAllocator(void *this, ULONG cbSize); + +#else + +static void* WINAPI Allocate_PMemoryAllocator(void *this, ULONG cbSize) +{ + void* (WINAPI *fn)(void*,ULONG) = **(void***)this; + return fn(this, cbSize); +} + +#endif + +BOOLEAN WINAPI StgConvertPropertyToVariant(const SERIALIZEDPROPERTYVALUE* prop, + USHORT CodePage, PROPVARIANT* pvar, void* pma) +{ + struct read_buffer read_buffer; + HRESULT hr; + + read_buffer.data = (BYTE *)prop; + read_buffer.size = ~(size_t)0; + hr = PropertyStorage_ReadProperty(pvar, &read_buffer, 0, CodePage, Allocate_PMemoryAllocator, pma); + + if (FAILED(hr)) + { + FIXME("should raise C++ exception on failure\n"); + PropVariantInit(pvar); + } + + return FALSE; +} + +SERIALIZEDPROPERTYVALUE* WINAPI StgConvertVariantToProperty(const PROPVARIANT *pvar, + USHORT CodePage, SERIALIZEDPROPERTYVALUE *pprop, ULONG *pcb, PROPID pid, + BOOLEAN fReserved, ULONG *pcIndirect) +{ + FIXME("%p, %d, %p, %p, %ld, %d, %p.\n", pvar, CodePage, pprop, pcb, pid, fReserved, pcIndirect); + + return NULL; +} diff --git a/dlls/ole32/stg_stream.c b/dlls/coml2/stg_stream.c similarity index 100% rename from dlls/ole32/stg_stream.c rename to dlls/coml2/stg_stream.c diff --git a/dlls/coml2/storage32.c b/dlls/coml2/storage32.c index d6dab7d6b17..9b5c0e639bc 100644 --- a/dlls/coml2/storage32.c +++ b/dlls/coml2/storage32.c @@ -47,10 +47,8533 @@ #include "winreg.h" #include "wine/wingdi16.h" +#include "storage32.h" WINE_DEFAULT_DEBUG_CHANNEL(storage); + +/* + * These are signatures to detect the type of Document file. + */ static const BYTE STORAGE_magic[8] ={0xd0,0xcf,0x11,0xe0,0xa1,0xb1,0x1a,0xe1}; +static const BYTE STORAGE_oldmagic[8] ={0xd0,0xcf,0x11,0xe0,0x0e,0x11,0xfc,0x0d}; + +extern const IPropertySetStorageVtbl IPropertySetStorage_Vtbl; + +static HRESULT validateSTGM(DWORD stgm); +static DWORD GetShareModeFromSTGM(DWORD stgm); +static DWORD GetAccessModeFromSTGM(DWORD stgm); +static DWORD GetCreationModeFromSTGM(DWORD stgm); + +/**************************************************************************** + * StorageInternalImpl definitions. + * + * Definition of the implementation structure for the IStorage interface. + * This one implements the IStorage interface for storage that are + * inside another storage. + */ +typedef struct StorageInternalImpl +{ + struct StorageBaseImpl base; + + /* + * Entry in the parent's stream tracking list + */ + struct list ParentListEntry; + + StorageBaseImpl *parentStorage; +} StorageInternalImpl; + +static const IStorageVtbl StorageInternalImpl_Vtbl; +static StorageInternalImpl* StorageInternalImpl_Construct(StorageBaseImpl*,DWORD,DirRef); + +typedef struct TransactedDirEntry +{ + /* If applicable, a reference to the original DirEntry in the transacted + * parent. If this is a newly-created entry, DIRENTRY_NULL. */ + DirRef transactedParentEntry; + + /* True if this entry is being used. */ + BOOL inuse; + + /* True if data is up to date. */ + BOOL read; + + /* True if this entry has been modified. */ + BOOL dirty; + + /* True if this entry's stream has been modified. */ + BOOL stream_dirty; + + /* True if this entry has been deleted in the transacted storage, but the + * delete has not yet been committed. */ + BOOL deleted; + + /* If this entry's stream has been modified, a reference to where the stream + * is stored in the snapshot file. */ + DirRef stream_entry; + + /* This directory entry's data, including any changes that have been made. */ + DirEntry data; + + /* A reference to the parent of this node. This is only valid while we are + * committing changes. */ + DirRef parent; + + /* A reference to a newly-created entry in the transacted parent. This is + * always equal to transactedParentEntry except when committing changes. */ + DirRef newTransactedParentEntry; +} TransactedDirEntry; + + +/**************************************************************************** + * Transacted storage object. + */ +typedef struct TransactedSnapshotImpl +{ + struct StorageBaseImpl base; + + /* + * Modified streams are temporarily saved to the scratch file. + */ + StorageBaseImpl *scratch; + + /* The directory structure is kept here, so that we can track how these + * entries relate to those in the parent storage. */ + TransactedDirEntry *entries; + ULONG entries_size; + ULONG firstFreeEntry; + + /* + * Changes are committed to the transacted parent. + */ + StorageBaseImpl *transactedParent; + + /* The transaction signature from when we last committed */ + ULONG lastTransactionSig; +} TransactedSnapshotImpl; + +static const IStorageVtbl TransactedSnapshotImpl_Vtbl; +static HRESULT Storage_ConstructTransacted(StorageBaseImpl*,BOOL,StorageBaseImpl**); + +typedef struct TransactedSharedImpl +{ + struct StorageBaseImpl base; + + /* + * Snapshot and uncommitted changes go here. + */ + TransactedSnapshotImpl *scratch; + + /* + * Changes are committed to the transacted parent. + */ + StorageBaseImpl *transactedParent; + + /* The transaction signature from when we last committed */ + ULONG lastTransactionSig; +} TransactedSharedImpl; + + +/**************************************************************************** + * BlockChainStream definitions. + * + * The BlockChainStream class is a utility class that is used to create an + * abstraction of the big block chains in the storage file. + */ + +struct BlockChainRun +{ + /* This represents a range of blocks that happen reside in consecutive sectors. */ + ULONG firstSector; + ULONG firstOffset; + ULONG lastOffset; +}; + +typedef struct BlockChainBlock +{ + ULONG index; + ULONG sector; + BOOL read; + BOOL dirty; + BYTE data[MAX_BIG_BLOCK_SIZE]; +} BlockChainBlock; + +struct BlockChainStream +{ + StorageImpl* parentStorage; + ULONG* headOfStreamPlaceHolder; + DirRef ownerDirEntry; + struct BlockChainRun* indexCache; + ULONG indexCacheLen; + ULONG indexCacheSize; + BlockChainBlock cachedBlocks[2]; + ULONG blockToEvict; + ULONG tailIndex; + ULONG numBlocks; +}; + +/* Returns the number of blocks that comprises this chain. + * This is not the size of the stream as the last block may not be full! + */ +static inline ULONG BlockChainStream_GetCount(BlockChainStream* This) +{ + return This->numBlocks; +} + +static BlockChainStream* BlockChainStream_Construct(StorageImpl*,ULONG*,DirRef); +static void BlockChainStream_Destroy(BlockChainStream*); +static HRESULT BlockChainStream_ReadAt(BlockChainStream*,ULARGE_INTEGER,ULONG,void*,ULONG*); +static HRESULT BlockChainStream_WriteAt(BlockChainStream*,ULARGE_INTEGER,ULONG,const void*,ULONG*); +static HRESULT BlockChainStream_Flush(BlockChainStream*); +static ULARGE_INTEGER BlockChainStream_GetSize(BlockChainStream*); +static BOOL BlockChainStream_SetSize(BlockChainStream*,ULARGE_INTEGER); + + +/**************************************************************************** + * SmallBlockChainStream definitions. + * + * The SmallBlockChainStream class is a utility class that is used to create an + * abstraction of the small block chains in the storage file. + */ + +struct SmallBlockChainStream +{ + StorageImpl* parentStorage; + DirRef ownerDirEntry; + ULONG* headOfStreamPlaceHolder; +}; + +static SmallBlockChainStream* SmallBlockChainStream_Construct(StorageImpl*,ULONG*,DirRef); +static void SmallBlockChainStream_Destroy(SmallBlockChainStream*); +static HRESULT SmallBlockChainStream_ReadAt(SmallBlockChainStream*,ULARGE_INTEGER,ULONG,void*,ULONG*); +static HRESULT SmallBlockChainStream_WriteAt(SmallBlockChainStream*,ULARGE_INTEGER,ULONG,const void*,ULONG*); +static ULARGE_INTEGER SmallBlockChainStream_GetSize(SmallBlockChainStream*); +static BOOL SmallBlockChainStream_SetSize(SmallBlockChainStream*,ULARGE_INTEGER); + + +/************************************************************************ + * IDirectWriterLock implementation + ***********************************************************************/ + +static inline StorageBaseImpl *impl_from_IDirectWriterLock( IDirectWriterLock *iface ) +{ + return CONTAINING_RECORD(iface, StorageBaseImpl, IDirectWriterLock_iface); +} + +static HRESULT WINAPI directwriterlock_QueryInterface(IDirectWriterLock *iface, REFIID riid, void **obj) +{ + StorageBaseImpl *This = impl_from_IDirectWriterLock(iface); + return IStorage_QueryInterface(&This->IStorage_iface, riid, obj); +} + +static ULONG WINAPI directwriterlock_AddRef(IDirectWriterLock *iface) +{ + StorageBaseImpl *This = impl_from_IDirectWriterLock(iface); + return IStorage_AddRef(&This->IStorage_iface); +} + +static ULONG WINAPI directwriterlock_Release(IDirectWriterLock *iface) +{ + StorageBaseImpl *This = impl_from_IDirectWriterLock(iface); + return IStorage_Release(&This->IStorage_iface); +} + +static HRESULT WINAPI directwriterlock_WaitForWriteAccess(IDirectWriterLock *iface, DWORD timeout) +{ + StorageBaseImpl *This = impl_from_IDirectWriterLock(iface); + FIXME("%p, %ld: stub\n", This, timeout); + return E_NOTIMPL; +} + +static HRESULT WINAPI directwriterlock_ReleaseWriteAccess(IDirectWriterLock *iface) +{ + StorageBaseImpl *This = impl_from_IDirectWriterLock(iface); + FIXME("(%p): stub\n", This); + return E_NOTIMPL; +} + +static HRESULT WINAPI directwriterlock_HaveWriteAccess(IDirectWriterLock *iface) +{ + StorageBaseImpl *This = impl_from_IDirectWriterLock(iface); + FIXME("(%p): stub\n", This); + return E_NOTIMPL; +} + +static const IDirectWriterLockVtbl DirectWriterLockVtbl = +{ + directwriterlock_QueryInterface, + directwriterlock_AddRef, + directwriterlock_Release, + directwriterlock_WaitForWriteAccess, + directwriterlock_ReleaseWriteAccess, + directwriterlock_HaveWriteAccess +}; + + +/************************************************************************ + * StorageBaseImpl implementation : Tree helper functions + ***********************************************************************/ + +/**************************************************************************** + * + * Internal Method + * + * Case insensitive comparison of DirEntry.name by first considering + * their size. + * + * Returns <0 when name1 < name2 + * >0 when name1 > name2 + * 0 when name1 == name2 + */ +static LONG entryNameCmp( + const OLECHAR *name1, + const OLECHAR *name2) +{ + LONG diff = lstrlenW(name1) - lstrlenW(name2); + + while (diff == 0 && *name1 != 0) + { + /* + * We compare the string themselves only when they are of the same length + */ + diff = towupper(*name1++) - towupper(*name2++); + } + + return diff; +} + +/**************************************************************************** + * + * Internal Method + * + * Find and read the element of a storage with the given name. + */ +static DirRef findElement(StorageBaseImpl *storage, DirRef storageEntry, + const OLECHAR *name, DirEntry *data) +{ + DirRef currentEntry; + + /* Read the storage entry to find the root of the tree. */ + StorageBaseImpl_ReadDirEntry(storage, storageEntry, data); + + currentEntry = data->dirRootEntry; + + while (currentEntry != DIRENTRY_NULL) + { + LONG cmp; + + StorageBaseImpl_ReadDirEntry(storage, currentEntry, data); + + cmp = entryNameCmp(name, data->name); + + if (cmp == 0) + /* found it */ + break; + + else if (cmp < 0) + currentEntry = data->leftChild; + + else if (cmp > 0) + currentEntry = data->rightChild; + } + + return currentEntry; +} + +/**************************************************************************** + * + * Internal Method + * + * Find and read the binary tree parent of the element with the given name. + * + * If there is no such element, find a place where it could be inserted and + * return STG_E_FILENOTFOUND. + */ +static HRESULT findTreeParent(StorageBaseImpl *storage, DirRef storageEntry, + const OLECHAR *childName, DirEntry *parentData, DirRef *parentEntry, + ULONG *relation) +{ + DirRef childEntry; + DirEntry childData; + + /* Read the storage entry to find the root of the tree. */ + StorageBaseImpl_ReadDirEntry(storage, storageEntry, parentData); + + *parentEntry = storageEntry; + *relation = DIRENTRY_RELATION_DIR; + + childEntry = parentData->dirRootEntry; + + while (childEntry != DIRENTRY_NULL) + { + LONG cmp; + + StorageBaseImpl_ReadDirEntry(storage, childEntry, &childData); + + cmp = entryNameCmp(childName, childData.name); + + if (cmp == 0) + /* found it */ + break; + + else if (cmp < 0) + { + *parentData = childData; + *parentEntry = childEntry; + *relation = DIRENTRY_RELATION_PREVIOUS; + + childEntry = parentData->leftChild; + } + + else if (cmp > 0) + { + *parentData = childData; + *parentEntry = childEntry; + *relation = DIRENTRY_RELATION_NEXT; + + childEntry = parentData->rightChild; + } + } + + if (childEntry == DIRENTRY_NULL) + return STG_E_FILENOTFOUND; + else + return S_OK; +} + +static void setEntryLink(DirEntry *entry, ULONG relation, DirRef new_target) +{ + switch (relation) + { + case DIRENTRY_RELATION_PREVIOUS: + entry->leftChild = new_target; + break; + case DIRENTRY_RELATION_NEXT: + entry->rightChild = new_target; + break; + case DIRENTRY_RELATION_DIR: + entry->dirRootEntry = new_target; + break; + default: + assert(0); + } +} + +/**************************************************************************** + * + * Internal Method + * + * Add a directory entry to a storage + */ +static HRESULT insertIntoTree( + StorageBaseImpl *This, + DirRef parentStorageIndex, + DirRef newEntryIndex) +{ + DirEntry currentEntry; + DirEntry newEntry; + + /* + * Read the inserted entry + */ + StorageBaseImpl_ReadDirEntry(This, + newEntryIndex, + &newEntry); + + /* + * Read the storage entry + */ + StorageBaseImpl_ReadDirEntry(This, + parentStorageIndex, + ¤tEntry); + + if (currentEntry.dirRootEntry != DIRENTRY_NULL) + { + /* + * The root storage contains some element, therefore, start the research + * for the appropriate location. + */ + BOOL found = FALSE; + DirRef current, next, previous, currentEntryId; + + /* + * Keep a reference to the root of the storage's element tree + */ + currentEntryId = currentEntry.dirRootEntry; + + /* + * Read + */ + StorageBaseImpl_ReadDirEntry(This, + currentEntry.dirRootEntry, + ¤tEntry); + + previous = currentEntry.leftChild; + next = currentEntry.rightChild; + current = currentEntryId; + + while (!found) + { + LONG diff = entryNameCmp( newEntry.name, currentEntry.name); + + if (diff < 0) + { + if (previous != DIRENTRY_NULL) + { + StorageBaseImpl_ReadDirEntry(This, + previous, + ¤tEntry); + current = previous; + } + else + { + currentEntry.leftChild = newEntryIndex; + StorageBaseImpl_WriteDirEntry(This, + current, + ¤tEntry); + found = TRUE; + } + } + else if (diff > 0) + { + if (next != DIRENTRY_NULL) + { + StorageBaseImpl_ReadDirEntry(This, + next, + ¤tEntry); + current = next; + } + else + { + currentEntry.rightChild = newEntryIndex; + StorageBaseImpl_WriteDirEntry(This, + current, + ¤tEntry); + found = TRUE; + } + } + else + { + /* + * Trying to insert an item with the same name in the + * subtree structure. + */ + return STG_E_FILEALREADYEXISTS; + } + + previous = currentEntry.leftChild; + next = currentEntry.rightChild; + } + } + else + { + /* + * The storage is empty, make the new entry the root of its element tree + */ + currentEntry.dirRootEntry = newEntryIndex; + StorageBaseImpl_WriteDirEntry(This, + parentStorageIndex, + ¤tEntry); + } + + return S_OK; +} + +/************************************************************************* + * + * Internal Method + * + * This method removes a directory entry from its parent storage tree without + * freeing any resources attached to it. + */ +static HRESULT removeFromTree( + StorageBaseImpl *This, + DirRef parentStorageIndex, + DirRef deletedIndex) +{ + DirEntry entryToDelete; + DirEntry parentEntry; + DirRef parentEntryRef; + ULONG typeOfRelation; + HRESULT hr; + + hr = StorageBaseImpl_ReadDirEntry(This, deletedIndex, &entryToDelete); + + if (hr != S_OK) + return hr; + + /* + * Find the element that links to the one we want to delete. + */ + hr = findTreeParent(This, parentStorageIndex, entryToDelete.name, + &parentEntry, &parentEntryRef, &typeOfRelation); + + if (hr != S_OK) + return hr; + + if (entryToDelete.leftChild != DIRENTRY_NULL) + { + /* + * Replace the deleted entry with its left child + */ + setEntryLink(&parentEntry, typeOfRelation, entryToDelete.leftChild); + + hr = StorageBaseImpl_WriteDirEntry( + This, + parentEntryRef, + &parentEntry); + if(FAILED(hr)) + { + return hr; + } + + if (entryToDelete.rightChild != DIRENTRY_NULL) + { + /* + * We need to reinsert the right child somewhere. We already know it and + * its children are greater than everything in the left tree, so we + * insert it at the rightmost point in the left tree. + */ + DirRef newRightChildParent = entryToDelete.leftChild; + DirEntry newRightChildParentEntry; + + do + { + hr = StorageBaseImpl_ReadDirEntry( + This, + newRightChildParent, + &newRightChildParentEntry); + if (FAILED(hr)) + { + return hr; + } + + if (newRightChildParentEntry.rightChild != DIRENTRY_NULL) + newRightChildParent = newRightChildParentEntry.rightChild; + } while (newRightChildParentEntry.rightChild != DIRENTRY_NULL); + + newRightChildParentEntry.rightChild = entryToDelete.rightChild; + + hr = StorageBaseImpl_WriteDirEntry( + This, + newRightChildParent, + &newRightChildParentEntry); + if (FAILED(hr)) + { + return hr; + } + } + } + else + { + /* + * Replace the deleted entry with its right child + */ + setEntryLink(&parentEntry, typeOfRelation, entryToDelete.rightChild); + + hr = StorageBaseImpl_WriteDirEntry( + This, + parentEntryRef, + &parentEntry); + if(FAILED(hr)) + { + return hr; + } + } + + return hr; +} + + +/************************************************************************ + * IEnumSTATSTGImpl implementation for StorageBaseImpl_EnumElements + ***********************************************************************/ + +/* + * IEnumSTATSTGImpl definitions. + * + * Definition of the implementation structure for the IEnumSTATSTGImpl interface. + * This class allows iterating through the content of a storage and finding + * specific items inside it. + */ +struct IEnumSTATSTGImpl +{ + IEnumSTATSTG IEnumSTATSTG_iface; + + LONG ref; /* Reference count */ + StorageBaseImpl* parentStorage; /* Reference to the parent storage */ + DirRef storageDirEntry; /* Directory entry of the storage to enumerate */ + + WCHAR name[DIRENTRY_NAME_MAX_LEN]; /* The most recent name visited */ +}; + +static inline IEnumSTATSTGImpl *impl_from_IEnumSTATSTG(IEnumSTATSTG *iface) +{ + return CONTAINING_RECORD(iface, IEnumSTATSTGImpl, IEnumSTATSTG_iface); +} + +static void IEnumSTATSTGImpl_Destroy(IEnumSTATSTGImpl* This) +{ + IStorage_Release(&This->parentStorage->IStorage_iface); + HeapFree(GetProcessHeap(), 0, This); +} + +static HRESULT WINAPI IEnumSTATSTGImpl_QueryInterface( + IEnumSTATSTG* iface, + REFIID riid, + void** ppvObject) +{ + IEnumSTATSTGImpl* const This = impl_from_IEnumSTATSTG(iface); + + TRACE("%p,%s,%p\n", iface, debugstr_guid(riid), ppvObject); + + if (ppvObject==0) + return E_INVALIDARG; + + *ppvObject = 0; + + if (IsEqualGUID(&IID_IUnknown, riid) || + IsEqualGUID(&IID_IEnumSTATSTG, riid)) + { + *ppvObject = &This->IEnumSTATSTG_iface; + IEnumSTATSTG_AddRef(&This->IEnumSTATSTG_iface); + TRACE("<-- %p\n", *ppvObject); + return S_OK; + } + + TRACE("<-- E_NOINTERFACE\n"); + return E_NOINTERFACE; +} + +static ULONG WINAPI IEnumSTATSTGImpl_AddRef( + IEnumSTATSTG* iface) +{ + IEnumSTATSTGImpl* const This = impl_from_IEnumSTATSTG(iface); + return InterlockedIncrement(&This->ref); +} + +static ULONG WINAPI IEnumSTATSTGImpl_Release( + IEnumSTATSTG* iface) +{ + IEnumSTATSTGImpl* const This = impl_from_IEnumSTATSTG(iface); + + ULONG newRef; + + newRef = InterlockedDecrement(&This->ref); + + if (newRef==0) + { + IEnumSTATSTGImpl_Destroy(This); + } + + return newRef; +} + +static HRESULT IEnumSTATSTGImpl_GetNextRef( + IEnumSTATSTGImpl* This, + DirRef *ref) +{ + DirRef result = DIRENTRY_NULL; + DirRef searchNode; + DirEntry entry; + HRESULT hr; + WCHAR result_name[DIRENTRY_NAME_MAX_LEN]; + + TRACE("%p,%p\n", This, ref); + + hr = StorageBaseImpl_ReadDirEntry(This->parentStorage, + This->parentStorage->storageDirEntry, &entry); + searchNode = entry.dirRootEntry; + + while (SUCCEEDED(hr) && searchNode != DIRENTRY_NULL) + { + hr = StorageBaseImpl_ReadDirEntry(This->parentStorage, searchNode, &entry); + + if (SUCCEEDED(hr)) + { + LONG diff = entryNameCmp( entry.name, This->name); + + if (diff <= 0) + { + searchNode = entry.rightChild; + } + else + { + result = searchNode; + memcpy(result_name, entry.name, sizeof(result_name)); + searchNode = entry.leftChild; + } + } + } + + if (SUCCEEDED(hr)) + { + *ref = result; + if (result != DIRENTRY_NULL) + memcpy(This->name, result_name, sizeof(result_name)); + } + + TRACE("<-- %#lx\n", hr); + return hr; +} + +static HRESULT WINAPI IEnumSTATSTGImpl_Next( + IEnumSTATSTG* iface, + ULONG celt, + STATSTG* rgelt, + ULONG* pceltFetched) +{ + IEnumSTATSTGImpl* const This = impl_from_IEnumSTATSTG(iface); + + DirEntry currentEntry; + STATSTG* currentReturnStruct = rgelt; + ULONG objectFetched = 0; + DirRef currentSearchNode; + HRESULT hr=S_OK; + + TRACE("%p, %lu, %p, %p.\n", iface, celt, rgelt, pceltFetched); + + if ( (rgelt==0) || ( (celt!=1) && (pceltFetched==0) ) ) + return E_INVALIDARG; + + if (This->parentStorage->reverted) + { + TRACE("<-- STG_E_REVERTED\n"); + return STG_E_REVERTED; + } + + /* + * To avoid the special case, get another pointer to a ULONG value if + * the caller didn't supply one. + */ + if (pceltFetched==0) + pceltFetched = &objectFetched; + + /* + * Start the iteration, we will iterate until we hit the end of the + * linked list or until we hit the number of items to iterate through + */ + *pceltFetched = 0; + + while ( *pceltFetched < celt ) + { + hr = IEnumSTATSTGImpl_GetNextRef(This, ¤tSearchNode); + + if (FAILED(hr) || currentSearchNode == DIRENTRY_NULL) + { + memset(currentReturnStruct, 0, sizeof(*currentReturnStruct)); + break; + } + + /* + * Read the entry from the storage. + */ + hr = StorageBaseImpl_ReadDirEntry(This->parentStorage, + currentSearchNode, + ¤tEntry); + if (FAILED(hr)) break; + + /* + * Copy the information to the return buffer. + */ + StorageUtl_CopyDirEntryToSTATSTG(This->parentStorage, + currentReturnStruct, + ¤tEntry, + STATFLAG_DEFAULT); + + /* + * Step to the next item in the iteration + */ + (*pceltFetched)++; + currentReturnStruct++; + } + + if (SUCCEEDED(hr) && *pceltFetched != celt) + hr = S_FALSE; + + TRACE("<-- %#lx (asked %lu, got %lu)\n", hr, celt, *pceltFetched); + return hr; +} + + +static HRESULT WINAPI IEnumSTATSTGImpl_Skip( + IEnumSTATSTG* iface, + ULONG celt) +{ + IEnumSTATSTGImpl* const This = impl_from_IEnumSTATSTG(iface); + + ULONG objectFetched = 0; + DirRef currentSearchNode; + HRESULT hr=S_OK; + + TRACE("%p, %lu.\n", iface, celt); + + if (This->parentStorage->reverted) + { + TRACE("<-- STG_E_REVERTED\n"); + return STG_E_REVERTED; + } + + while ( (objectFetched < celt) ) + { + hr = IEnumSTATSTGImpl_GetNextRef(This, ¤tSearchNode); + + if (FAILED(hr) || currentSearchNode == DIRENTRY_NULL) + break; + + objectFetched++; + } + + if (SUCCEEDED(hr) && objectFetched != celt) + return S_FALSE; + + TRACE("<-- %#lx\n", hr); + return hr; +} + +static HRESULT WINAPI IEnumSTATSTGImpl_Reset( + IEnumSTATSTG* iface) +{ + IEnumSTATSTGImpl* const This = impl_from_IEnumSTATSTG(iface); + + TRACE("%p\n", iface); + + if (This->parentStorage->reverted) + { + TRACE("<-- STG_E_REVERTED\n"); + return STG_E_REVERTED; + } + + This->name[0] = 0; + + return S_OK; +} + +static IEnumSTATSTGImpl* IEnumSTATSTGImpl_Construct(StorageBaseImpl*,DirRef); + +static HRESULT WINAPI IEnumSTATSTGImpl_Clone( + IEnumSTATSTG* iface, + IEnumSTATSTG** ppenum) +{ + IEnumSTATSTGImpl* const This = impl_from_IEnumSTATSTG(iface); + IEnumSTATSTGImpl* newClone; + + TRACE("%p,%p\n", iface, ppenum); + + if (This->parentStorage->reverted) + { + TRACE("<-- STG_E_REVERTED\n"); + return STG_E_REVERTED; + } + + if (ppenum==0) + return E_INVALIDARG; + + newClone = IEnumSTATSTGImpl_Construct(This->parentStorage, + This->storageDirEntry); + if (!newClone) + { + *ppenum = NULL; + return E_OUTOFMEMORY; + } + + /* + * The new clone enumeration must point to the same current node as + * the old one. + */ + memcpy(newClone->name, This->name, sizeof(newClone->name)); + + *ppenum = &newClone->IEnumSTATSTG_iface; + + return S_OK; +} + +/* + * Virtual function table for the IEnumSTATSTGImpl class. + */ +static const IEnumSTATSTGVtbl IEnumSTATSTGImpl_Vtbl = +{ + IEnumSTATSTGImpl_QueryInterface, + IEnumSTATSTGImpl_AddRef, + IEnumSTATSTGImpl_Release, + IEnumSTATSTGImpl_Next, + IEnumSTATSTGImpl_Skip, + IEnumSTATSTGImpl_Reset, + IEnumSTATSTGImpl_Clone +}; + +static IEnumSTATSTGImpl* IEnumSTATSTGImpl_Construct( + StorageBaseImpl* parentStorage, + DirRef storageDirEntry) +{ + IEnumSTATSTGImpl* newEnumeration; + + newEnumeration = HeapAlloc(GetProcessHeap(), 0, sizeof(IEnumSTATSTGImpl)); + + if (newEnumeration) + { + newEnumeration->IEnumSTATSTG_iface.lpVtbl = &IEnumSTATSTGImpl_Vtbl; + newEnumeration->ref = 1; + newEnumeration->name[0] = 0; + + /* + * We want to nail-down the reference to the storage in case the + * enumeration out-lives the storage in the client application. + */ + newEnumeration->parentStorage = parentStorage; + IStorage_AddRef(&newEnumeration->parentStorage->IStorage_iface); + + newEnumeration->storageDirEntry = storageDirEntry; + } + + return newEnumeration; +} + + +/************************************************************************ + * StorageBaseImpl implementation + ***********************************************************************/ + +static inline StorageBaseImpl *impl_from_IStorage( IStorage *iface ) +{ + return CONTAINING_RECORD(iface, StorageBaseImpl, IStorage_iface); +} + +/************************************************************************ + * StorageBaseImpl_QueryInterface (IUnknown) + * + * This method implements the common QueryInterface for all IStorage + * implementations contained in this file. + * + * See Windows documentation for more details on IUnknown methods. + */ +static HRESULT WINAPI StorageBaseImpl_QueryInterface( + IStorage* iface, + REFIID riid, + void** ppvObject) +{ + StorageBaseImpl *This = impl_from_IStorage(iface); + + TRACE("%p,%s,%p\n", iface, debugstr_guid(riid), ppvObject); + + if (!ppvObject) + return E_INVALIDARG; + + *ppvObject = 0; + + if (IsEqualGUID(&IID_IUnknown, riid) || + IsEqualGUID(&IID_IStorage, riid)) + { + *ppvObject = &This->IStorage_iface; + } + else if (IsEqualGUID(&IID_IPropertySetStorage, riid)) + { + *ppvObject = &This->IPropertySetStorage_iface; + } + /* locking interface is reported for writer only */ + else if (IsEqualGUID(&IID_IDirectWriterLock, riid) && This->lockingrole == SWMR_Writer) + { + *ppvObject = &This->IDirectWriterLock_iface; + } + else + { + TRACE("<-- E_NOINTERFACE\n"); + return E_NOINTERFACE; + } + + IStorage_AddRef(iface); + TRACE("<-- %p\n", *ppvObject); + return S_OK; +} + +/************************************************************************ + * StorageBaseImpl_AddRef (IUnknown) + * + * This method implements the common AddRef for all IStorage + * implementations contained in this file. + * + * See Windows documentation for more details on IUnknown methods. + */ +static ULONG WINAPI StorageBaseImpl_AddRef( + IStorage* iface) +{ + StorageBaseImpl *This = impl_from_IStorage(iface); + ULONG ref = InterlockedIncrement(&This->ref); + + TRACE("%p, refcount %lu.\n", iface, ref); + + return ref; +} + +/************************************************************************ + * StorageBaseImpl_Release (IUnknown) + * + * This method implements the common Release for all IStorage + * implementations contained in this file. + * + * See Windows documentation for more details on IUnknown methods. + */ +static ULONG WINAPI StorageBaseImpl_Release( + IStorage* iface) +{ + StorageBaseImpl *This = impl_from_IStorage(iface); + + ULONG ref = InterlockedDecrement(&This->ref); + + TRACE("%p, refcount %lu.\n", iface, ref); + + if (ref == 0) + { + /* + * Since we are using a system of base-classes, we want to call the + * destructor of the appropriate derived class. To do this, we are + * using virtual functions to implement the destructor. + */ + StorageBaseImpl_Destroy(This); + } + + return ref; +} + +static HRESULT StorageBaseImpl_CopyStorageEntryTo(StorageBaseImpl *This, + DirRef srcEntry, BOOL skip_storage, BOOL skip_stream, + SNB snbExclude, IStorage *pstgDest); + +static HRESULT StorageBaseImpl_CopyChildEntryTo(StorageBaseImpl *This, + DirRef srcEntry, BOOL skip_storage, BOOL skip_stream, + SNB snbExclude, IStorage *pstgDest) +{ + DirEntry data; + HRESULT hr; + BOOL skip = FALSE; + IStorage *pstgTmp; + IStream *pstrChild, *pstrTmp; + STATSTG strStat; + + if (srcEntry == DIRENTRY_NULL) + return S_OK; + + hr = StorageBaseImpl_ReadDirEntry( This, srcEntry, &data ); + + if (FAILED(hr)) + return hr; + + if ( snbExclude ) + { + WCHAR **snb = snbExclude; + + while ( *snb != NULL && !skip ) + { + if ( wcscmp(data.name, *snb) == 0 ) + skip = TRUE; + ++snb; + } + } + + if (!skip) + { + if (data.stgType == STGTY_STORAGE && !skip_storage) + { + /* + * create a new storage in destination storage + */ + hr = IStorage_CreateStorage( pstgDest, data.name, + STGM_FAILIFTHERE|STGM_WRITE|STGM_SHARE_EXCLUSIVE, + 0, 0, + &pstgTmp ); + + /* + * if it already exist, don't create a new one use this one + */ + if (hr == STG_E_FILEALREADYEXISTS) + { + hr = IStorage_OpenStorage( pstgDest, data.name, NULL, + STGM_WRITE|STGM_SHARE_EXCLUSIVE, + NULL, 0, &pstgTmp ); + } + + if (SUCCEEDED(hr)) + { + hr = StorageBaseImpl_CopyStorageEntryTo( This, srcEntry, skip_storage, + skip_stream, NULL, pstgTmp ); + + IStorage_Release(pstgTmp); + } + } + else if (data.stgType == STGTY_STREAM && !skip_stream) + { + /* + * create a new stream in destination storage. If the stream already + * exist, it will be deleted and a new one will be created. + */ + hr = IStorage_CreateStream( pstgDest, data.name, + STGM_CREATE|STGM_WRITE|STGM_SHARE_EXCLUSIVE, + 0, 0, &pstrTmp ); + + /* + * open child stream storage. This operation must succeed even if the + * stream is already open, so we use internal functions to do it. + */ + if (hr == S_OK) + { + StgStreamImpl *streamimpl = StgStreamImpl_Construct(This, STGM_READ|STGM_SHARE_EXCLUSIVE, srcEntry); + + if (streamimpl) + { + pstrChild = &streamimpl->IStream_iface; + if (pstrChild) + IStream_AddRef(pstrChild); + } + else + { + pstrChild = NULL; + hr = E_OUTOFMEMORY; + } + } + + if (hr == S_OK) + { + /* + * Get the size of the source stream + */ + IStream_Stat( pstrChild, &strStat, STATFLAG_NONAME ); + + /* + * Set the size of the destination stream. + */ + IStream_SetSize(pstrTmp, strStat.cbSize); + + /* + * do the copy + */ + hr = IStream_CopyTo( pstrChild, pstrTmp, strStat.cbSize, + NULL, NULL ); + + IStream_Release( pstrChild ); + } + + IStream_Release( pstrTmp ); + } + } + + /* copy siblings */ + if (SUCCEEDED(hr)) + hr = StorageBaseImpl_CopyChildEntryTo( This, data.leftChild, skip_storage, + skip_stream, snbExclude, pstgDest ); + + if (SUCCEEDED(hr)) + hr = StorageBaseImpl_CopyChildEntryTo( This, data.rightChild, skip_storage, + skip_stream, snbExclude, pstgDest ); + + TRACE("<-- %#lx\n", hr); + return hr; +} + +static BOOL StorageBaseImpl_IsStreamOpen(StorageBaseImpl * stg, DirRef streamEntry) +{ + StgStreamImpl *strm; + + TRACE("%p, %ld.\n", stg, streamEntry); + + LIST_FOR_EACH_ENTRY(strm, &stg->strmHead, StgStreamImpl, StrmListEntry) + { + if (strm->dirEntry == streamEntry) + { + return TRUE; + } + } + + return FALSE; +} + +static BOOL StorageBaseImpl_IsStorageOpen(StorageBaseImpl * stg, DirRef storageEntry) +{ + StorageInternalImpl *childstg; + + TRACE("%p, %ld.\n", stg, storageEntry); + + LIST_FOR_EACH_ENTRY(childstg, &stg->storageHead, StorageInternalImpl, ParentListEntry) + { + if (childstg->base.storageDirEntry == storageEntry) + { + return TRUE; + } + } + + return FALSE; +} + +/************************************************************************ + * StorageBaseImpl_OpenStream (IStorage) + * + * This method will open the specified stream object from the current storage. + * + * See Windows documentation for more details on IStorage methods. + */ +static HRESULT WINAPI StorageBaseImpl_OpenStream( + IStorage* iface, + const OLECHAR* pwcsName, /* [string][in] */ + void* reserved1, /* [unique][in] */ + DWORD grfMode, /* [in] */ + DWORD reserved2, /* [in] */ + IStream** ppstm) /* [out] */ +{ + StorageBaseImpl *This = impl_from_IStorage(iface); + StgStreamImpl* newStream; + DirEntry currentEntry; + DirRef streamEntryRef; + HRESULT res = STG_E_UNKNOWN; + + TRACE("%p, %s, %p, %#lx, %ld, %p.\n", iface, debugstr_w(pwcsName), reserved1, grfMode, reserved2, ppstm); + + if ( (pwcsName==NULL) || (ppstm==0) ) + { + res = E_INVALIDARG; + goto end; + } + + *ppstm = NULL; + + if ( FAILED( validateSTGM(grfMode) ) || + STGM_SHARE_MODE(grfMode) != STGM_SHARE_EXCLUSIVE) + { + res = STG_E_INVALIDFLAG; + goto end; + } + + /* + * As documented. + */ + if ( (grfMode & STGM_DELETEONRELEASE) || (grfMode & STGM_TRANSACTED) ) + { + res = STG_E_INVALIDFUNCTION; + goto end; + } + + if (This->reverted) + { + res = STG_E_REVERTED; + goto end; + } + + /* + * Check that we're compatible with the parent's storage mode, but + * only if we are not in transacted mode + */ + if(!(This->openFlags & STGM_TRANSACTED)) { + if ( STGM_ACCESS_MODE( grfMode ) > STGM_ACCESS_MODE( This->openFlags ) ) + { + res = STG_E_INVALIDFLAG; + goto end; + } + } + + /* + * Search for the element with the given name + */ + streamEntryRef = findElement( + This, + This->storageDirEntry, + pwcsName, + ¤tEntry); + + /* + * If it was found, construct the stream object and return a pointer to it. + */ + if ( (streamEntryRef!=DIRENTRY_NULL) && + (currentEntry.stgType==STGTY_STREAM) ) + { + if (StorageBaseImpl_IsStreamOpen(This, streamEntryRef)) + { + /* A single stream cannot be opened a second time. */ + res = STG_E_ACCESSDENIED; + goto end; + } + + newStream = StgStreamImpl_Construct(This, grfMode, streamEntryRef); + + if (newStream) + { + newStream->grfMode = grfMode; + *ppstm = &newStream->IStream_iface; + + IStream_AddRef(*ppstm); + + res = S_OK; + goto end; + } + + res = E_OUTOFMEMORY; + goto end; + } + + res = STG_E_FILENOTFOUND; + +end: + if (res == S_OK) + TRACE("<-- IStream %p\n", *ppstm); + TRACE("<-- %#lx\n", res); + return res; +} + +/************************************************************************ + * StorageBaseImpl_OpenStorage (IStorage) + * + * This method will open a new storage object from the current storage. + * + * See Windows documentation for more details on IStorage methods. + */ +static HRESULT WINAPI StorageBaseImpl_OpenStorage( + IStorage* iface, + const OLECHAR* pwcsName, /* [string][unique][in] */ + IStorage* pstgPriority, /* [unique][in] */ + DWORD grfMode, /* [in] */ + SNB snbExclude, /* [unique][in] */ + DWORD reserved, /* [in] */ + IStorage** ppstg) /* [out] */ +{ + StorageBaseImpl *This = impl_from_IStorage(iface); + StorageInternalImpl* newStorage; + StorageBaseImpl* newTransactedStorage; + DirEntry currentEntry; + DirRef storageEntryRef; + HRESULT res = STG_E_UNKNOWN; + + TRACE("%p, %s, %p, %#lx, %p, %ld, %p.\n", iface, debugstr_w(pwcsName), pstgPriority, + grfMode, snbExclude, reserved, ppstg); + + if ((pwcsName==NULL) || (ppstg==0) ) + { + res = E_INVALIDARG; + goto end; + } + + if (This->openFlags & STGM_SIMPLE) + { + res = STG_E_INVALIDFUNCTION; + goto end; + } + + /* as documented */ + if (snbExclude != NULL) + { + res = STG_E_INVALIDPARAMETER; + goto end; + } + + if ( FAILED( validateSTGM(grfMode) )) + { + res = STG_E_INVALIDFLAG; + goto end; + } + + /* + * As documented. + */ + if ( STGM_SHARE_MODE(grfMode) != STGM_SHARE_EXCLUSIVE || + (grfMode & STGM_DELETEONRELEASE) || + (grfMode & STGM_PRIORITY) ) + { + res = STG_E_INVALIDFUNCTION; + goto end; + } + + if (This->reverted) + return STG_E_REVERTED; + + /* + * Check that we're compatible with the parent's storage mode, + * but only if we are not transacted + */ + if(!(This->openFlags & STGM_TRANSACTED)) { + if ( STGM_ACCESS_MODE( grfMode ) > STGM_ACCESS_MODE( This->openFlags ) ) + { + res = STG_E_ACCESSDENIED; + goto end; + } + } + + *ppstg = NULL; + + storageEntryRef = findElement( + This, + This->storageDirEntry, + pwcsName, + ¤tEntry); + + if ( (storageEntryRef!=DIRENTRY_NULL) && + (currentEntry.stgType==STGTY_STORAGE) ) + { + if (StorageBaseImpl_IsStorageOpen(This, storageEntryRef)) + { + /* A single storage cannot be opened a second time. */ + res = STG_E_ACCESSDENIED; + goto end; + } + + newStorage = StorageInternalImpl_Construct( + This, + grfMode, + storageEntryRef); + + if (newStorage != 0) + { + if (grfMode & STGM_TRANSACTED) + { + res = Storage_ConstructTransacted(&newStorage->base, FALSE, &newTransactedStorage); + + if (FAILED(res)) + { + HeapFree(GetProcessHeap(), 0, newStorage); + goto end; + } + + *ppstg = &newTransactedStorage->IStorage_iface; + } + else + { + *ppstg = &newStorage->base.IStorage_iface; + } + + list_add_tail(&This->storageHead, &newStorage->ParentListEntry); + + res = S_OK; + goto end; + } + + res = STG_E_INSUFFICIENTMEMORY; + goto end; + } + + res = STG_E_FILENOTFOUND; + +end: + TRACE("<-- %#lx\n", res); + return res; +} + +/************************************************************************ + * StorageBaseImpl_EnumElements (IStorage) + * + * This method will create an enumerator object that can be used to + * retrieve information about all the elements in the storage object. + * + * See Windows documentation for more details on IStorage methods. + */ +static HRESULT WINAPI StorageBaseImpl_EnumElements( + IStorage* iface, + DWORD reserved1, /* [in] */ + void* reserved2, /* [size_is][unique][in] */ + DWORD reserved3, /* [in] */ + IEnumSTATSTG** ppenum) /* [out] */ +{ + StorageBaseImpl *This = impl_from_IStorage(iface); + IEnumSTATSTGImpl* newEnum; + + TRACE("%p, %ld, %p, %ld, %p.\n", iface, reserved1, reserved2, reserved3, ppenum); + + if (!ppenum) + return E_INVALIDARG; + + if (This->reverted) + return STG_E_REVERTED; + + newEnum = IEnumSTATSTGImpl_Construct( + This, + This->storageDirEntry); + + if (newEnum) + { + *ppenum = &newEnum->IEnumSTATSTG_iface; + return S_OK; + } + + return E_OUTOFMEMORY; +} + +/************************************************************************ + * StorageBaseImpl_Stat (IStorage) + * + * This method will retrieve information about this storage object. + * + * See Windows documentation for more details on IStorage methods. + */ +static HRESULT WINAPI StorageBaseImpl_Stat( + IStorage* iface, + STATSTG* pstatstg, /* [out] */ + DWORD grfStatFlag) /* [in] */ +{ + StorageBaseImpl *This = impl_from_IStorage(iface); + DirEntry currentEntry; + HRESULT res = STG_E_UNKNOWN; + + TRACE("%p, %p, %#lx.\n", iface, pstatstg, grfStatFlag); + + if (!pstatstg) + { + res = E_INVALIDARG; + goto end; + } + + if (This->reverted) + { + res = STG_E_REVERTED; + goto end; + } + + res = StorageBaseImpl_ReadDirEntry( + This, + This->storageDirEntry, + ¤tEntry); + + if (SUCCEEDED(res)) + { + StorageUtl_CopyDirEntryToSTATSTG( + This, + pstatstg, + ¤tEntry, + grfStatFlag); + + pstatstg->grfMode = This->openFlags; + pstatstg->grfStateBits = This->stateBits; + } + +end: + if (res == S_OK) + { + TRACE("<-- STATSTG: pwcsName: %s, type: %ld, cbSize.Low/High: %ld/%ld, grfMode: %#lx, grfLocksSupported: %ld, grfStateBits: %#lx\n", debugstr_w(pstatstg->pwcsName), pstatstg->type, pstatstg->cbSize.LowPart, pstatstg->cbSize.HighPart, pstatstg->grfMode, pstatstg->grfLocksSupported, pstatstg->grfStateBits); + } + TRACE("<-- %#lx\n", res); + return res; +} + +/************************************************************************ + * StorageBaseImpl_RenameElement (IStorage) + * + * This method will rename the specified element. + * + * See Windows documentation for more details on IStorage methods. + */ +static HRESULT WINAPI StorageBaseImpl_RenameElement( + IStorage* iface, + const OLECHAR* pwcsOldName, /* [in] */ + const OLECHAR* pwcsNewName) /* [in] */ +{ + StorageBaseImpl *This = impl_from_IStorage(iface); + DirEntry currentEntry; + DirRef currentEntryRef; + + TRACE("(%p, %s, %s)\n", + iface, debugstr_w(pwcsOldName), debugstr_w(pwcsNewName)); + + if (This->reverted) + return STG_E_REVERTED; + + currentEntryRef = findElement(This, + This->storageDirEntry, + pwcsNewName, + ¤tEntry); + + if (currentEntryRef != DIRENTRY_NULL) + { + /* + * There is already an element with the new name + */ + return STG_E_FILEALREADYEXISTS; + } + + /* + * Search for the old element name + */ + currentEntryRef = findElement(This, + This->storageDirEntry, + pwcsOldName, + ¤tEntry); + + if (currentEntryRef != DIRENTRY_NULL) + { + if (StorageBaseImpl_IsStreamOpen(This, currentEntryRef) || + StorageBaseImpl_IsStorageOpen(This, currentEntryRef)) + { + WARN("Element is already open; cannot rename.\n"); + return STG_E_ACCESSDENIED; + } + + /* Remove the element from its current position in the tree */ + removeFromTree(This, This->storageDirEntry, + currentEntryRef); + + /* Change the name of the element */ + lstrcpyW(currentEntry.name, pwcsNewName); + + /* Delete any sibling links */ + currentEntry.leftChild = DIRENTRY_NULL; + currentEntry.rightChild = DIRENTRY_NULL; + + StorageBaseImpl_WriteDirEntry(This, currentEntryRef, + ¤tEntry); + + /* Insert the element in a new position in the tree */ + insertIntoTree(This, This->storageDirEntry, + currentEntryRef); + } + else + { + /* + * There is no element with the old name + */ + return STG_E_FILENOTFOUND; + } + + return StorageBaseImpl_Flush(This); +} + +/************************************************************************ + * StorageBaseImpl_CreateStream (IStorage) + * + * This method will create a stream object within this storage + * + * See Windows documentation for more details on IStorage methods. + */ +static HRESULT WINAPI StorageBaseImpl_CreateStream( + IStorage* iface, + const OLECHAR* pwcsName, /* [string][in] */ + DWORD grfMode, /* [in] */ + DWORD reserved1, /* [in] */ + DWORD reserved2, /* [in] */ + IStream** ppstm) /* [out] */ +{ + StorageBaseImpl *This = impl_from_IStorage(iface); + StgStreamImpl* newStream; + DirEntry currentEntry, newStreamEntry; + DirRef currentEntryRef, newStreamEntryRef; + HRESULT hr; + + TRACE("%p, %s, %#lx, %ld, %ld, %p.\n", iface, debugstr_w(pwcsName), grfMode, reserved1, reserved2, ppstm); + + if (ppstm == 0) + return STG_E_INVALIDPOINTER; + + if (pwcsName == 0) + return STG_E_INVALIDNAME; + + if (reserved1 || reserved2) + return STG_E_INVALIDPARAMETER; + + if ( FAILED( validateSTGM(grfMode) )) + return STG_E_INVALIDFLAG; + + if (STGM_SHARE_MODE(grfMode) != STGM_SHARE_EXCLUSIVE) + return STG_E_INVALIDFLAG; + + if (This->reverted) + return STG_E_REVERTED; + + /* + * As documented. + */ + if ((grfMode & STGM_DELETEONRELEASE) || + (grfMode & STGM_TRANSACTED)) + return STG_E_INVALIDFUNCTION; + + /* + * Don't worry about permissions in transacted mode, as we can always write + * changes; we just can't always commit them. + */ + if(!(This->openFlags & STGM_TRANSACTED)) { + /* Can't create a stream on read-only storage */ + if ( STGM_ACCESS_MODE( This->openFlags ) == STGM_READ ) + return STG_E_ACCESSDENIED; + + /* Can't create a stream with greater access than the parent. */ + if ( STGM_ACCESS_MODE( grfMode ) > STGM_ACCESS_MODE( This->openFlags ) ) + return STG_E_ACCESSDENIED; + } + + if(This->openFlags & STGM_SIMPLE) + if(grfMode & STGM_CREATE) return STG_E_INVALIDFLAG; + + *ppstm = 0; + + currentEntryRef = findElement(This, + This->storageDirEntry, + pwcsName, + ¤tEntry); + + if (currentEntryRef != DIRENTRY_NULL) + { + /* + * An element with this name already exists + */ + if (STGM_CREATE_MODE(grfMode) == STGM_CREATE) + { + IStorage_DestroyElement(iface, pwcsName); + } + else + return STG_E_FILEALREADYEXISTS; + } + + /* + * memset the empty entry + */ + memset(&newStreamEntry, 0, sizeof(DirEntry)); + + newStreamEntry.sizeOfNameString = + ( lstrlenW(pwcsName)+1 ) * sizeof(WCHAR); + + if (newStreamEntry.sizeOfNameString > DIRENTRY_NAME_BUFFER_LEN) + return STG_E_INVALIDNAME; + + lstrcpyW(newStreamEntry.name, pwcsName); + + newStreamEntry.stgType = STGTY_STREAM; + newStreamEntry.startingBlock = BLOCK_END_OF_CHAIN; + newStreamEntry.size.LowPart = 0; + newStreamEntry.size.HighPart = 0; + + newStreamEntry.leftChild = DIRENTRY_NULL; + newStreamEntry.rightChild = DIRENTRY_NULL; + newStreamEntry.dirRootEntry = DIRENTRY_NULL; + + /* call CoFileTime to get the current time + newStreamEntry.ctime + newStreamEntry.mtime + */ + + /* newStreamEntry.clsid */ + + /* + * Create an entry with the new data + */ + hr = StorageBaseImpl_CreateDirEntry(This, &newStreamEntry, &newStreamEntryRef); + if (FAILED(hr)) + return hr; + + /* + * Insert the new entry in the parent storage's tree. + */ + hr = insertIntoTree( + This, + This->storageDirEntry, + newStreamEntryRef); + if (FAILED(hr)) + { + StorageBaseImpl_DestroyDirEntry(This, newStreamEntryRef); + return hr; + } + + /* + * Open the stream to return it. + */ + newStream = StgStreamImpl_Construct(This, grfMode, newStreamEntryRef); + + if (newStream) + { + *ppstm = &newStream->IStream_iface; + IStream_AddRef(*ppstm); + } + else + { + return STG_E_INSUFFICIENTMEMORY; + } + + return StorageBaseImpl_Flush(This); +} + +/************************************************************************ + * StorageBaseImpl_SetClass (IStorage) + * + * This method will write the specified CLSID in the directory entry of this + * storage. + * + * See Windows documentation for more details on IStorage methods. + */ +static HRESULT WINAPI StorageBaseImpl_SetClass( + IStorage* iface, + REFCLSID clsid) /* [in] */ +{ + StorageBaseImpl *This = impl_from_IStorage(iface); + HRESULT hRes; + DirEntry currentEntry; + + TRACE("(%p, %s)\n", iface, wine_dbgstr_guid(clsid)); + + if (This->reverted) + return STG_E_REVERTED; + + hRes = StorageBaseImpl_ReadDirEntry(This, + This->storageDirEntry, + ¤tEntry); + if (SUCCEEDED(hRes)) + { + currentEntry.clsid = *clsid; + + hRes = StorageBaseImpl_WriteDirEntry(This, + This->storageDirEntry, + ¤tEntry); + } + + if (SUCCEEDED(hRes)) + hRes = StorageBaseImpl_Flush(This); + + return hRes; +} + +/************************************************************************ + * StorageBaseImpl_CreateStorage (IStorage) + * + * This method will create the storage object within the provided storage. + * + * See Windows documentation for more details on IStorage methods. + */ +static HRESULT WINAPI StorageBaseImpl_CreateStorage( + IStorage* iface, + const OLECHAR *pwcsName, /* [string][in] */ + DWORD grfMode, /* [in] */ + DWORD reserved1, /* [in] */ + DWORD reserved2, /* [in] */ + IStorage **ppstg) /* [out] */ +{ + StorageBaseImpl* This = impl_from_IStorage(iface); + + DirEntry currentEntry; + DirEntry newEntry; + DirRef currentEntryRef; + DirRef newEntryRef; + HRESULT hr; + + TRACE("%p, %s, %#lx, %ld, %ld, %p.\n", iface, debugstr_w(pwcsName), grfMode, + reserved1, reserved2, ppstg); + + if (ppstg == 0) + return STG_E_INVALIDPOINTER; + + if (This->openFlags & STGM_SIMPLE) + { + return STG_E_INVALIDFUNCTION; + } + + if (pwcsName == 0) + return STG_E_INVALIDNAME; + + *ppstg = NULL; + + if ( FAILED( validateSTGM(grfMode) ) || + (grfMode & STGM_DELETEONRELEASE) ) + { + WARN("bad grfMode: %#lx\n", grfMode); + return STG_E_INVALIDFLAG; + } + + if (This->reverted) + return STG_E_REVERTED; + + /* + * Check that we're compatible with the parent's storage mode + */ + if ( !(This->openFlags & STGM_TRANSACTED) && + STGM_ACCESS_MODE( grfMode ) > STGM_ACCESS_MODE( This->openFlags ) ) + { + WARN("access denied\n"); + return STG_E_ACCESSDENIED; + } + + currentEntryRef = findElement(This, + This->storageDirEntry, + pwcsName, + ¤tEntry); + + if (currentEntryRef != DIRENTRY_NULL) + { + /* + * An element with this name already exists + */ + if (STGM_CREATE_MODE(grfMode) == STGM_CREATE && + ((This->openFlags & STGM_TRANSACTED) || + STGM_ACCESS_MODE(This->openFlags) != STGM_READ)) + { + hr = IStorage_DestroyElement(iface, pwcsName); + if (FAILED(hr)) + return hr; + } + else + { + WARN("file already exists\n"); + return STG_E_FILEALREADYEXISTS; + } + } + else if (!(This->openFlags & STGM_TRANSACTED) && + STGM_ACCESS_MODE(This->openFlags) == STGM_READ) + { + WARN("read-only storage\n"); + return STG_E_ACCESSDENIED; + } + + memset(&newEntry, 0, sizeof(DirEntry)); + + newEntry.sizeOfNameString = (lstrlenW(pwcsName)+1)*sizeof(WCHAR); + + if (newEntry.sizeOfNameString > DIRENTRY_NAME_BUFFER_LEN) + { + FIXME("name too long\n"); + return STG_E_INVALIDNAME; + } + + lstrcpyW(newEntry.name, pwcsName); + + newEntry.stgType = STGTY_STORAGE; + newEntry.startingBlock = BLOCK_END_OF_CHAIN; + newEntry.size.LowPart = 0; + newEntry.size.HighPart = 0; + + newEntry.leftChild = DIRENTRY_NULL; + newEntry.rightChild = DIRENTRY_NULL; + newEntry.dirRootEntry = DIRENTRY_NULL; + + /* call CoFileTime to get the current time + newEntry.ctime + newEntry.mtime + */ + + /* newEntry.clsid */ + + /* + * Create a new directory entry for the storage + */ + hr = StorageBaseImpl_CreateDirEntry(This, &newEntry, &newEntryRef); + if (FAILED(hr)) + return hr; + + /* + * Insert the new directory entry into the parent storage's tree + */ + hr = insertIntoTree( + This, + This->storageDirEntry, + newEntryRef); + if (FAILED(hr)) + { + StorageBaseImpl_DestroyDirEntry(This, newEntryRef); + return hr; + } + + /* + * Open it to get a pointer to return. + */ + hr = IStorage_OpenStorage(iface, pwcsName, 0, grfMode, 0, 0, ppstg); + + if( (hr != S_OK) || (*ppstg == NULL)) + { + return hr; + } + + if (SUCCEEDED(hr)) + hr = StorageBaseImpl_Flush(This); + + return S_OK; +} + +static HRESULT StorageBaseImpl_CopyStorageEntryTo(StorageBaseImpl *This, + DirRef srcEntry, BOOL skip_storage, BOOL skip_stream, + SNB snbExclude, IStorage *pstgDest) +{ + DirEntry data; + HRESULT hr; + + hr = StorageBaseImpl_ReadDirEntry( This, srcEntry, &data ); + + if (SUCCEEDED(hr)) + hr = IStorage_SetClass( pstgDest, &data.clsid ); + + if (SUCCEEDED(hr)) + hr = StorageBaseImpl_CopyChildEntryTo( This, data.dirRootEntry, skip_storage, + skip_stream, snbExclude, pstgDest ); + + TRACE("<-- %#lx\n", hr); + return hr; +} + +/************************************************************************* + * CopyTo (IStorage) + */ +static HRESULT WINAPI StorageBaseImpl_CopyTo( + IStorage* iface, + DWORD ciidExclude, /* [in] */ + const IID* rgiidExclude, /* [size_is][unique][in] */ + SNB snbExclude, /* [unique][in] */ + IStorage* pstgDest) /* [unique][in] */ +{ + StorageBaseImpl *This = impl_from_IStorage(iface); + + BOOL skip_storage = FALSE, skip_stream = FALSE; + DWORD i; + + TRACE("%p, %ld, %p, %p, %p.\n", iface, ciidExclude, rgiidExclude, snbExclude, pstgDest); + + if ( pstgDest == 0 ) + return STG_E_INVALIDPOINTER; + + for(i = 0; i < ciidExclude; ++i) + { + if(IsEqualGUID(&IID_IStorage, &rgiidExclude[i])) + skip_storage = TRUE; + else if(IsEqualGUID(&IID_IStream, &rgiidExclude[i])) + skip_stream = TRUE; + else + WARN("Unknown excluded GUID: %s\n", debugstr_guid(&rgiidExclude[i])); + } + + if (!skip_storage) + { + /* Give up early if it looks like this would be infinitely recursive. + * Oddly enough, this includes some cases that aren't really recursive, like + * copying to a transacted child. */ + IStorage *pstgDestAncestor = pstgDest; + IStorage *pstgDestAncestorChild = NULL; + + /* Go up the chain from the destination until we find the source storage. */ + while (pstgDestAncestor != iface) { + pstgDestAncestorChild = pstgDest; + + if (pstgDestAncestor->lpVtbl == &TransactedSnapshotImpl_Vtbl) + { + TransactedSnapshotImpl *snapshot = (TransactedSnapshotImpl*) pstgDestAncestor; + + pstgDestAncestor = &snapshot->transactedParent->IStorage_iface; + } + else if (pstgDestAncestor->lpVtbl == &StorageInternalImpl_Vtbl) + { + StorageInternalImpl *internal = (StorageInternalImpl*) pstgDestAncestor; + + pstgDestAncestor = &internal->parentStorage->IStorage_iface; + } + else + break; + } + + if (pstgDestAncestor == iface) + { + BOOL fail = TRUE; + + if (pstgDestAncestorChild && snbExclude) + { + StorageBaseImpl *ancestorChildBase = (StorageBaseImpl*)pstgDestAncestorChild; + DirEntry data; + WCHAR **snb = snbExclude; + + StorageBaseImpl_ReadDirEntry(ancestorChildBase, ancestorChildBase->storageDirEntry, &data); + + while ( *snb != NULL && fail ) + { + if ( wcscmp(data.name, *snb) == 0 ) + fail = FALSE; + ++snb; + } + } + + if (fail) + return STG_E_ACCESSDENIED; + } + } + + return StorageBaseImpl_CopyStorageEntryTo( This, This->storageDirEntry, + skip_storage, skip_stream, snbExclude, pstgDest ); +} + +/************************************************************************* + * MoveElementTo (IStorage) + */ +static HRESULT WINAPI StorageBaseImpl_MoveElementTo( + IStorage* iface, + const OLECHAR *pwcsName, /* [string][in] */ + IStorage *pstgDest, /* [unique][in] */ + const OLECHAR *pwcsNewName,/* [string][in] */ + DWORD grfFlags) /* [in] */ +{ + FIXME("%p, %s, %p, %s, %#lx: stub\n", iface, debugstr_w(pwcsName), pstgDest, + debugstr_w(pwcsNewName), grfFlags); + return E_NOTIMPL; +} + +/************************************************************************* + * Commit (IStorage) + * + * Ensures that any changes made to a storage object open in transacted mode + * are reflected in the parent storage + * + * In a non-transacted mode, this ensures all cached writes are completed. + */ +static HRESULT WINAPI StorageBaseImpl_Commit( + IStorage* iface, + DWORD grfCommitFlags)/* [in] */ +{ + StorageBaseImpl* This = impl_from_IStorage(iface); + TRACE("%p, %#lx.\n", iface, grfCommitFlags); + return StorageBaseImpl_Flush(This); +} + +/************************************************************************* + * Revert (IStorage) + * + * Discard all changes that have been made since the last commit operation + */ +static HRESULT WINAPI StorageBaseImpl_Revert( + IStorage* iface) +{ + TRACE("(%p)\n", iface); + return S_OK; +} + +/********************************************************************* + * + * Internal helper function for StorageBaseImpl_DestroyElement() + * + * Delete the contents of a storage entry. + * + */ +static HRESULT deleteStorageContents( + StorageBaseImpl *parentStorage, + DirRef indexToDelete, + DirEntry entryDataToDelete) +{ + IEnumSTATSTG *elements = 0; + IStorage *childStorage = 0; + STATSTG currentElement; + HRESULT hr; + HRESULT destroyHr = S_OK; + StorageInternalImpl *stg, *stg2; + + TRACE("%p, %ld.\n", parentStorage, indexToDelete); + + /* Invalidate any open storage objects. */ + LIST_FOR_EACH_ENTRY_SAFE(stg, stg2, &parentStorage->storageHead, StorageInternalImpl, ParentListEntry) + { + if (stg->base.storageDirEntry == indexToDelete) + { + StorageBaseImpl_Invalidate(&stg->base); + } + } + + /* + * Open the storage and enumerate it + */ + hr = IStorage_OpenStorage( + &parentStorage->IStorage_iface, + entryDataToDelete.name, + 0, + STGM_WRITE | STGM_SHARE_EXCLUSIVE, + 0, + 0, + &childStorage); + + if (hr != S_OK) + { + TRACE("<-- %#lx\n", hr); + return hr; + } + + /* + * Enumerate the elements + */ + hr = IStorage_EnumElements(childStorage, 0, 0, 0, &elements); + if (FAILED(hr)) + { + IStorage_Release(childStorage); + TRACE("<-- %#lx\n", hr); + return hr; + } + + do + { + /* + * Obtain the next element + */ + hr = IEnumSTATSTG_Next(elements, 1, ¤tElement, NULL); + if (hr==S_OK) + { + destroyHr = IStorage_DestroyElement(childStorage, currentElement.pwcsName); + + CoTaskMemFree(currentElement.pwcsName); + } + + /* + * We need to Reset the enumeration every time because we delete elements + * and the enumeration could be invalid + */ + IEnumSTATSTG_Reset(elements); + + } while ((hr == S_OK) && (destroyHr == S_OK)); + + IStorage_Release(childStorage); + IEnumSTATSTG_Release(elements); + + TRACE("%#lx\n", hr); + return destroyHr; +} + +/********************************************************************* + * + * Internal helper function for StorageBaseImpl_DestroyElement() + * + * Perform the deletion of a stream's data + * + */ +static HRESULT deleteStreamContents( + StorageBaseImpl *parentStorage, + DirRef indexToDelete, + DirEntry entryDataToDelete) +{ + IStream *pis; + HRESULT hr; + ULARGE_INTEGER size; + StgStreamImpl *strm, *strm2; + + /* Invalidate any open stream objects. */ + LIST_FOR_EACH_ENTRY_SAFE(strm, strm2, &parentStorage->strmHead, StgStreamImpl, StrmListEntry) + { + if (strm->dirEntry == indexToDelete) + { + TRACE("Stream deleted %p\n", strm); + strm->parentStorage = NULL; + list_remove(&strm->StrmListEntry); + } + } + + size.HighPart = 0; + size.LowPart = 0; + + hr = IStorage_OpenStream(&parentStorage->IStorage_iface, + entryDataToDelete.name, NULL, STGM_WRITE | STGM_SHARE_EXCLUSIVE, 0, &pis); + + if (hr!=S_OK) + { + TRACE("<-- %#lx\n", hr); + return(hr); + } + + /* + * Zap the stream + */ + hr = IStream_SetSize(pis, size); + + if(hr != S_OK) + { + TRACE("<-- %#lx\n", hr); + return hr; + } + + /* + * Release the stream object. + */ + IStream_Release(pis); + TRACE("<-- %#lx\n", hr); + return S_OK; +} + +/************************************************************************* + * DestroyElement (IStorage) + * + * Strategy: This implementation is built this way for simplicity not for speed. + * I always delete the topmost element of the enumeration and adjust + * the deleted element pointer all the time. This takes longer to + * do but allows reinvoking DestroyElement whenever we encounter a + * storage object. The optimisation resides in the usage of another + * enumeration strategy that would give all the leaves of a storage + * first. (postfix order) + */ +static HRESULT WINAPI StorageBaseImpl_DestroyElement( + IStorage* iface, + const OLECHAR *pwcsName)/* [string][in] */ +{ + StorageBaseImpl *This = impl_from_IStorage(iface); + + HRESULT hr = S_OK; + DirEntry entryToDelete; + DirRef entryToDeleteRef; + + TRACE("(%p, %s)\n", + iface, debugstr_w(pwcsName)); + + if (pwcsName==NULL) + return STG_E_INVALIDPOINTER; + + if (This->reverted) + return STG_E_REVERTED; + + if ( !(This->openFlags & STGM_TRANSACTED) && + STGM_ACCESS_MODE( This->openFlags ) == STGM_READ ) + return STG_E_ACCESSDENIED; + + entryToDeleteRef = findElement( + This, + This->storageDirEntry, + pwcsName, + &entryToDelete); + + if ( entryToDeleteRef == DIRENTRY_NULL ) + { + TRACE("<-- STG_E_FILENOTFOUND\n"); + return STG_E_FILENOTFOUND; + } + + if ( entryToDelete.stgType == STGTY_STORAGE ) + { + hr = deleteStorageContents( + This, + entryToDeleteRef, + entryToDelete); + } + else if ( entryToDelete.stgType == STGTY_STREAM ) + { + hr = deleteStreamContents( + This, + entryToDeleteRef, + entryToDelete); + } + + if (hr!=S_OK) + { + TRACE("<-- %#lx\n", hr); + return hr; + } + + /* + * Remove the entry from its parent storage + */ + hr = removeFromTree( + This, + This->storageDirEntry, + entryToDeleteRef); + + /* + * Invalidate the entry + */ + if (SUCCEEDED(hr)) + StorageBaseImpl_DestroyDirEntry(This, entryToDeleteRef); + + if (SUCCEEDED(hr)) + hr = StorageBaseImpl_Flush(This); + + TRACE("<-- %#lx\n", hr); + return hr; +} + +static void StorageBaseImpl_DeleteAll(StorageBaseImpl * stg) +{ + struct list *cur, *cur2; + StgStreamImpl *strm=NULL; + StorageInternalImpl *childstg=NULL; + + LIST_FOR_EACH_SAFE(cur, cur2, &stg->strmHead) { + strm = LIST_ENTRY(cur,StgStreamImpl,StrmListEntry); + TRACE("Streams invalidated (stg=%p strm=%p next=%p prev=%p)\n", stg,strm,cur->next,cur->prev); + strm->parentStorage = NULL; + list_remove(cur); + } + + LIST_FOR_EACH_SAFE(cur, cur2, &stg->storageHead) { + childstg = LIST_ENTRY(cur,StorageInternalImpl,ParentListEntry); + StorageBaseImpl_Invalidate( &childstg->base ); + } + + if (stg->transactedChild) + { + StorageBaseImpl_Invalidate(stg->transactedChild); + + stg->transactedChild = NULL; + } +} + +/****************************************************************************** + * SetElementTimes (IStorage) + */ +static HRESULT WINAPI StorageBaseImpl_SetElementTimes( + IStorage* iface, + const OLECHAR *pwcsName,/* [string][in] */ + const FILETIME *pctime, /* [in] */ + const FILETIME *patime, /* [in] */ + const FILETIME *pmtime) /* [in] */ +{ + FIXME("(%s,...), stub!\n",debugstr_w(pwcsName)); + return S_OK; +} + +/****************************************************************************** + * SetStateBits (IStorage) + */ +static HRESULT WINAPI StorageBaseImpl_SetStateBits( + IStorage* iface, + DWORD grfStateBits,/* [in] */ + DWORD grfMask) /* [in] */ +{ + StorageBaseImpl *This = impl_from_IStorage(iface); + + if (This->reverted) + return STG_E_REVERTED; + + This->stateBits = (This->stateBits & ~grfMask) | (grfStateBits & grfMask); + return S_OK; +} + +/****************************************************************************** + * Internal stream list handlers + */ + +void StorageBaseImpl_AddStream(StorageBaseImpl * stg, StgStreamImpl * strm) +{ + TRACE("Stream added (stg=%p strm=%p)\n", stg, strm); + list_add_tail(&stg->strmHead,&strm->StrmListEntry); +} + +void StorageBaseImpl_RemoveStream(StorageBaseImpl * stg, StgStreamImpl * strm) +{ + TRACE("Stream removed (stg=%p strm=%p)\n", stg,strm); + list_remove(&(strm->StrmListEntry)); +} + +static HRESULT StorageBaseImpl_CopyStream( + StorageBaseImpl *dst, DirRef dst_entry, + StorageBaseImpl *src, DirRef src_entry) +{ + HRESULT hr; + BYTE data[4096]; + DirEntry srcdata; + ULARGE_INTEGER bytes_copied; + ULONG bytestocopy, bytesread, byteswritten; + + hr = StorageBaseImpl_ReadDirEntry(src, src_entry, &srcdata); + + if (SUCCEEDED(hr)) + { + hr = StorageBaseImpl_StreamSetSize(dst, dst_entry, srcdata.size); + + bytes_copied.QuadPart = 0; + while (bytes_copied.QuadPart < srcdata.size.QuadPart && SUCCEEDED(hr)) + { + bytestocopy = min(4096, srcdata.size.QuadPart - bytes_copied.QuadPart); + + hr = StorageBaseImpl_StreamReadAt(src, src_entry, bytes_copied, bytestocopy, + data, &bytesread); + if (SUCCEEDED(hr) && bytesread != bytestocopy) hr = STG_E_READFAULT; + + if (SUCCEEDED(hr)) + hr = StorageBaseImpl_StreamWriteAt(dst, dst_entry, bytes_copied, bytestocopy, + data, &byteswritten); + if (SUCCEEDED(hr)) + { + if (byteswritten != bytestocopy) hr = STG_E_WRITEFAULT; + bytes_copied.QuadPart += byteswritten; + } + } + } + + return hr; +} + +static HRESULT StorageBaseImpl_DupStorageTree( + StorageBaseImpl *dst, DirRef *dst_entry, + StorageBaseImpl *src, DirRef src_entry) +{ + HRESULT hr; + DirEntry data; + BOOL has_stream=FALSE; + + if (src_entry == DIRENTRY_NULL) + { + *dst_entry = DIRENTRY_NULL; + return S_OK; + } + + hr = StorageBaseImpl_ReadDirEntry(src, src_entry, &data); + if (SUCCEEDED(hr)) + { + has_stream = (data.stgType == STGTY_STREAM && data.size.QuadPart != 0); + data.startingBlock = BLOCK_END_OF_CHAIN; + data.size.QuadPart = 0; + + hr = StorageBaseImpl_DupStorageTree(dst, &data.leftChild, src, data.leftChild); + } + + if (SUCCEEDED(hr)) + hr = StorageBaseImpl_DupStorageTree(dst, &data.rightChild, src, data.rightChild); + + if (SUCCEEDED(hr)) + hr = StorageBaseImpl_DupStorageTree(dst, &data.dirRootEntry, src, data.dirRootEntry); + + if (SUCCEEDED(hr)) + hr = StorageBaseImpl_CreateDirEntry(dst, &data, dst_entry); + + if (SUCCEEDED(hr) && has_stream) + hr = StorageBaseImpl_CopyStream(dst, *dst_entry, src, src_entry); + + return hr; +} + +static HRESULT StorageBaseImpl_CopyStorageTree( + StorageBaseImpl *dst, DirRef dst_entry, + StorageBaseImpl *src, DirRef src_entry) +{ + HRESULT hr; + DirEntry src_data, dst_data; + DirRef new_root_entry; + + hr = StorageBaseImpl_ReadDirEntry(src, src_entry, &src_data); + + if (SUCCEEDED(hr)) + { + hr = StorageBaseImpl_DupStorageTree(dst, &new_root_entry, src, src_data.dirRootEntry); + } + + if (SUCCEEDED(hr)) + { + hr = StorageBaseImpl_ReadDirEntry(dst, dst_entry, &dst_data); + dst_data.clsid = src_data.clsid; + dst_data.ctime = src_data.ctime; + dst_data.mtime = src_data.mtime; + dst_data.dirRootEntry = new_root_entry; + } + + if (SUCCEEDED(hr)) + hr = StorageBaseImpl_WriteDirEntry(dst, dst_entry, &dst_data); + + return hr; +} + +static HRESULT StorageBaseImpl_DeleteStorageTree(StorageBaseImpl *This, DirRef entry, BOOL include_siblings) +{ + HRESULT hr; + DirEntry data; + ULARGE_INTEGER zero; + + if (entry == DIRENTRY_NULL) + return S_OK; + + zero.QuadPart = 0; + + hr = StorageBaseImpl_ReadDirEntry(This, entry, &data); + + if (SUCCEEDED(hr) && include_siblings) + hr = StorageBaseImpl_DeleteStorageTree(This, data.leftChild, TRUE); + + if (SUCCEEDED(hr) && include_siblings) + hr = StorageBaseImpl_DeleteStorageTree(This, data.rightChild, TRUE); + + if (SUCCEEDED(hr)) + hr = StorageBaseImpl_DeleteStorageTree(This, data.dirRootEntry, TRUE); + + if (SUCCEEDED(hr) && data.stgType == STGTY_STREAM) + hr = StorageBaseImpl_StreamSetSize(This, entry, zero); + + if (SUCCEEDED(hr)) + hr = StorageBaseImpl_DestroyDirEntry(This, entry); + + return hr; +} + + +/************************************************************************ + * StorageImpl implementation + ***********************************************************************/ + +static HRESULT StorageImpl_ReadAt(StorageImpl* This, + ULARGE_INTEGER offset, + void* buffer, + ULONG size, + ULONG* bytesRead) +{ + return ILockBytes_ReadAt(This->lockBytes,offset,buffer,size,bytesRead); +} + +static HRESULT StorageImpl_WriteAt(StorageImpl* This, + ULARGE_INTEGER offset, + const void* buffer, + const ULONG size, + ULONG* bytesWritten) +{ + return ILockBytes_WriteAt(This->lockBytes,offset,buffer,size,bytesWritten); +} + +/****************************************************************************** + * StorageImpl_LoadFileHeader + * + * This method will read in the file header + */ +static HRESULT StorageImpl_LoadFileHeader( + StorageImpl* This) +{ + HRESULT hr; + BYTE headerBigBlock[HEADER_SIZE]; + int index; + ULARGE_INTEGER offset; + DWORD bytes_read; + + TRACE("\n"); + /* + * Get a pointer to the big block of data containing the header. + */ + offset.HighPart = 0; + offset.LowPart = 0; + hr = StorageImpl_ReadAt(This, offset, headerBigBlock, HEADER_SIZE, &bytes_read); + if (SUCCEEDED(hr) && bytes_read != HEADER_SIZE) + hr = STG_E_FILENOTFOUND; + + /* + * Extract the information from the header. + */ + if (SUCCEEDED(hr)) + { + /* + * Check for the "magic number" signature and return an error if it is not + * found. + */ + if (memcmp(headerBigBlock, STORAGE_oldmagic, sizeof(STORAGE_oldmagic))==0) + { + return STG_E_OLDFORMAT; + } + + if (memcmp(headerBigBlock, STORAGE_magic, sizeof(STORAGE_magic))!=0) + { + return STG_E_INVALIDHEADER; + } + + StorageUtl_ReadWord( + headerBigBlock, + OFFSET_BIGBLOCKSIZEBITS, + &This->bigBlockSizeBits); + + StorageUtl_ReadWord( + headerBigBlock, + OFFSET_SMALLBLOCKSIZEBITS, + &This->smallBlockSizeBits); + + StorageUtl_ReadDWord( + headerBigBlock, + OFFSET_BBDEPOTCOUNT, + &This->bigBlockDepotCount); + + StorageUtl_ReadDWord( + headerBigBlock, + OFFSET_ROOTSTARTBLOCK, + &This->rootStartBlock); + + StorageUtl_ReadDWord( + headerBigBlock, + OFFSET_TRANSACTIONSIG, + &This->transactionSig); + + StorageUtl_ReadDWord( + headerBigBlock, + OFFSET_SMALLBLOCKLIMIT, + &This->smallBlockLimit); + + StorageUtl_ReadDWord( + headerBigBlock, + OFFSET_SBDEPOTSTART, + &This->smallBlockDepotStart); + + StorageUtl_ReadDWord( + headerBigBlock, + OFFSET_EXTBBDEPOTSTART, + &This->extBigBlockDepotStart); + + StorageUtl_ReadDWord( + headerBigBlock, + OFFSET_EXTBBDEPOTCOUNT, + &This->extBigBlockDepotCount); + + for (index = 0; index < COUNT_BBDEPOTINHEADER; index ++) + { + StorageUtl_ReadDWord( + headerBigBlock, + OFFSET_BBDEPOTSTART + (sizeof(ULONG)*index), + &(This->bigBlockDepotStart[index])); + } + + /* + * Make the bitwise arithmetic to get the size of the blocks in bytes. + */ + This->bigBlockSize = 0x000000001 << (DWORD)This->bigBlockSizeBits; + This->smallBlockSize = 0x000000001 << (DWORD)This->smallBlockSizeBits; + + /* + * Right now, the code is making some assumptions about the size of the + * blocks, just make sure they are what we're expecting. + */ + if ((This->bigBlockSize != MIN_BIG_BLOCK_SIZE && This->bigBlockSize != MAX_BIG_BLOCK_SIZE) || + This->smallBlockSize != DEF_SMALL_BLOCK_SIZE || + This->smallBlockLimit != LIMIT_TO_USE_SMALL_BLOCK) + { + FIXME("Broken OLE storage file? bigblock=%#lx, smallblock=%#lx, sblimit=%#lx\n", + This->bigBlockSize, This->smallBlockSize, This->smallBlockLimit); + hr = STG_E_INVALIDHEADER; + } + else + hr = S_OK; + } + + return hr; +} + +/****************************************************************************** + * StorageImpl_SaveFileHeader + * + * This method will save to the file the header + */ +static void StorageImpl_SaveFileHeader( + StorageImpl* This) +{ + BYTE headerBigBlock[HEADER_SIZE]; + int index; + ULARGE_INTEGER offset; + DWORD bytes_written; + DWORD major_version, dirsectorcount; + + if (This->bigBlockSizeBits == 0x9) + major_version = 3; + else if (This->bigBlockSizeBits == 0xc) + major_version = 4; + else + { + ERR("invalid big block shift 0x%x\n", This->bigBlockSizeBits); + major_version = 4; + } + + memset(headerBigBlock, 0, HEADER_SIZE); + memcpy(headerBigBlock, STORAGE_magic, sizeof(STORAGE_magic)); + + /* + * Write the information to the header. + */ + StorageUtl_WriteWord( + headerBigBlock, + OFFSET_MINORVERSION, + 0x3e); + + StorageUtl_WriteWord( + headerBigBlock, + OFFSET_MAJORVERSION, + major_version); + + StorageUtl_WriteWord( + headerBigBlock, + OFFSET_BYTEORDERMARKER, + (WORD)-2); + + StorageUtl_WriteWord( + headerBigBlock, + OFFSET_BIGBLOCKSIZEBITS, + This->bigBlockSizeBits); + + StorageUtl_WriteWord( + headerBigBlock, + OFFSET_SMALLBLOCKSIZEBITS, + This->smallBlockSizeBits); + + if (major_version >= 4) + { + if (This->rootBlockChain) + dirsectorcount = BlockChainStream_GetCount(This->rootBlockChain); + else + /* This file is being created, and it will start out with one block. */ + dirsectorcount = 1; + } + else + /* This field must be 0 in versions older than 4 */ + dirsectorcount = 0; + + StorageUtl_WriteDWord( + headerBigBlock, + OFFSET_DIRSECTORCOUNT, + dirsectorcount); + + StorageUtl_WriteDWord( + headerBigBlock, + OFFSET_BBDEPOTCOUNT, + This->bigBlockDepotCount); + + StorageUtl_WriteDWord( + headerBigBlock, + OFFSET_ROOTSTARTBLOCK, + This->rootStartBlock); + + StorageUtl_WriteDWord( + headerBigBlock, + OFFSET_TRANSACTIONSIG, + This->transactionSig); + + StorageUtl_WriteDWord( + headerBigBlock, + OFFSET_SMALLBLOCKLIMIT, + This->smallBlockLimit); + + StorageUtl_WriteDWord( + headerBigBlock, + OFFSET_SBDEPOTSTART, + This->smallBlockDepotStart); + + StorageUtl_WriteDWord( + headerBigBlock, + OFFSET_SBDEPOTCOUNT, + This->smallBlockDepotChain ? + BlockChainStream_GetCount(This->smallBlockDepotChain) : 0); + + StorageUtl_WriteDWord( + headerBigBlock, + OFFSET_EXTBBDEPOTSTART, + This->extBigBlockDepotStart); + + StorageUtl_WriteDWord( + headerBigBlock, + OFFSET_EXTBBDEPOTCOUNT, + This->extBigBlockDepotCount); + + for (index = 0; index < COUNT_BBDEPOTINHEADER; index ++) + { + StorageUtl_WriteDWord( + headerBigBlock, + OFFSET_BBDEPOTSTART + (sizeof(ULONG)*index), + (This->bigBlockDepotStart[index])); + } + + offset.QuadPart = 0; + StorageImpl_WriteAt(This, offset, headerBigBlock, HEADER_SIZE, &bytes_written); +} + + +/************************************************************************ + * StorageImpl implementation : DirEntry methods + ***********************************************************************/ + +/****************************************************************************** + * StorageImpl_ReadRawDirEntry + * + * This method will read the raw data from a directory entry in the file. + * + * buffer must be RAW_DIRENTRY_SIZE bytes long. + */ +static HRESULT StorageImpl_ReadRawDirEntry(StorageImpl *This, ULONG index, BYTE *buffer) +{ + ULARGE_INTEGER offset; + HRESULT hr; + ULONG bytesRead; + + offset.QuadPart = (ULONGLONG)index * RAW_DIRENTRY_SIZE; + + hr = BlockChainStream_ReadAt( + This->rootBlockChain, + offset, + RAW_DIRENTRY_SIZE, + buffer, + &bytesRead); + + if (bytesRead != RAW_DIRENTRY_SIZE) + return STG_E_READFAULT; + + return hr; +} + +/****************************************************************************** + * StorageImpl_WriteRawDirEntry + * + * This method will write the raw data from a directory entry in the file. + * + * buffer must be RAW_DIRENTRY_SIZE bytes long. + */ +static HRESULT StorageImpl_WriteRawDirEntry(StorageImpl *This, ULONG index, const BYTE *buffer) +{ + ULARGE_INTEGER offset; + ULONG bytesRead; + + offset.QuadPart = (ULONGLONG)index * RAW_DIRENTRY_SIZE; + + return BlockChainStream_WriteAt( + This->rootBlockChain, + offset, + RAW_DIRENTRY_SIZE, + buffer, + &bytesRead); +} + +/*************************************************************************** + * + * Internal Method + * + * Mark a directory entry in the file as free. + */ +static HRESULT StorageImpl_DestroyDirEntry( + StorageBaseImpl *base, + DirRef index) +{ + BYTE emptyData[RAW_DIRENTRY_SIZE]; + StorageImpl *storage = (StorageImpl*)base; + + memset(emptyData, 0, RAW_DIRENTRY_SIZE); + + return StorageImpl_WriteRawDirEntry(storage, index, emptyData); +} + +/****************************************************************************** + * UpdateRawDirEntry + * + * Update raw directory entry data from the fields in newData. + * + * buffer must be RAW_DIRENTRY_SIZE bytes long. + */ +static void UpdateRawDirEntry(BYTE *buffer, const DirEntry *newData) +{ + memset(buffer, 0, RAW_DIRENTRY_SIZE); + + memcpy( + buffer + OFFSET_PS_NAME, + newData->name, + DIRENTRY_NAME_BUFFER_LEN ); + + memcpy(buffer + OFFSET_PS_STGTYPE, &newData->stgType, 1); + + StorageUtl_WriteWord( + buffer, + OFFSET_PS_NAMELENGTH, + newData->sizeOfNameString); + + StorageUtl_WriteDWord( + buffer, + OFFSET_PS_LEFTCHILD, + newData->leftChild); + + StorageUtl_WriteDWord( + buffer, + OFFSET_PS_RIGHTCHILD, + newData->rightChild); + + StorageUtl_WriteDWord( + buffer, + OFFSET_PS_DIRROOT, + newData->dirRootEntry); + + StorageUtl_WriteGUID( + buffer, + OFFSET_PS_GUID, + &newData->clsid); + + StorageUtl_WriteDWord( + buffer, + OFFSET_PS_CTIMELOW, + newData->ctime.dwLowDateTime); + + StorageUtl_WriteDWord( + buffer, + OFFSET_PS_CTIMEHIGH, + newData->ctime.dwHighDateTime); + + StorageUtl_WriteDWord( + buffer, + OFFSET_PS_MTIMELOW, + newData->mtime.dwLowDateTime); + + StorageUtl_WriteDWord( + buffer, + OFFSET_PS_MTIMEHIGH, + newData->ctime.dwHighDateTime); + + StorageUtl_WriteDWord( + buffer, + OFFSET_PS_STARTBLOCK, + newData->startingBlock); + + StorageUtl_WriteDWord( + buffer, + OFFSET_PS_SIZE, + newData->size.LowPart); + + StorageUtl_WriteDWord( + buffer, + OFFSET_PS_SIZE_HIGH, + newData->size.HighPart); +} + +/*************************************************************************** + * + * Internal Method + * + * Reserve a directory entry in the file and initialize it. + */ +static HRESULT StorageImpl_CreateDirEntry( + StorageBaseImpl *base, + const DirEntry *newData, + DirRef *index) +{ + StorageImpl *storage = (StorageImpl*)base; + ULONG currentEntryIndex = 0; + ULONG newEntryIndex = DIRENTRY_NULL; + HRESULT hr = S_OK; + BYTE currentData[RAW_DIRENTRY_SIZE]; + WORD sizeOfNameString; + + do + { + hr = StorageImpl_ReadRawDirEntry(storage, + currentEntryIndex, + currentData); + + if (SUCCEEDED(hr)) + { + StorageUtl_ReadWord( + currentData, + OFFSET_PS_NAMELENGTH, + &sizeOfNameString); + + if (sizeOfNameString == 0) + { + /* + * The entry exists and is available, we found it. + */ + newEntryIndex = currentEntryIndex; + } + } + else + { + /* + * We exhausted the directory entries, we will create more space below + */ + newEntryIndex = currentEntryIndex; + } + currentEntryIndex++; + + } while (newEntryIndex == DIRENTRY_NULL); + + /* + * grow the directory stream + */ + if (FAILED(hr)) + { + BYTE emptyData[RAW_DIRENTRY_SIZE]; + ULARGE_INTEGER newSize; + ULONG entryIndex; + ULONG lastEntry = 0; + ULONG blockCount = 0; + + /* + * obtain the new count of blocks in the directory stream + */ + blockCount = BlockChainStream_GetCount( + storage->rootBlockChain)+1; + + /* + * initialize the size used by the directory stream + */ + newSize.QuadPart = (ULONGLONG)storage->bigBlockSize * blockCount; + + /* + * add a block to the directory stream + */ + BlockChainStream_SetSize(storage->rootBlockChain, newSize); + + /* + * memset the empty entry in order to initialize the unused newly + * created entries + */ + memset(emptyData, 0, RAW_DIRENTRY_SIZE); + + /* + * initialize them + */ + lastEntry = storage->bigBlockSize / RAW_DIRENTRY_SIZE * blockCount; + + for( + entryIndex = newEntryIndex + 1; + entryIndex < lastEntry; + entryIndex++) + { + StorageImpl_WriteRawDirEntry( + storage, + entryIndex, + emptyData); + } + + StorageImpl_SaveFileHeader(storage); + } + + UpdateRawDirEntry(currentData, newData); + + hr = StorageImpl_WriteRawDirEntry(storage, newEntryIndex, currentData); + + if (SUCCEEDED(hr)) + *index = newEntryIndex; + + return hr; +} + +/****************************************************************************** + * StorageImpl_ReadDirEntry + * + * This method will read the specified directory entry. + */ +static HRESULT StorageImpl_ReadDirEntry( + StorageImpl* This, + DirRef index, + DirEntry* buffer) +{ + BYTE currentEntry[RAW_DIRENTRY_SIZE]; + HRESULT readRes; + + readRes = StorageImpl_ReadRawDirEntry(This, index, currentEntry); + + if (SUCCEEDED(readRes)) + { + memset(buffer->name, 0, sizeof(buffer->name)); + memcpy( + buffer->name, + (WCHAR *)currentEntry+OFFSET_PS_NAME, + DIRENTRY_NAME_BUFFER_LEN ); + TRACE("storage name: %s\n", debugstr_w(buffer->name)); + + memcpy(&buffer->stgType, currentEntry + OFFSET_PS_STGTYPE, 1); + + StorageUtl_ReadWord( + currentEntry, + OFFSET_PS_NAMELENGTH, + &buffer->sizeOfNameString); + + StorageUtl_ReadDWord( + currentEntry, + OFFSET_PS_LEFTCHILD, + &buffer->leftChild); + + StorageUtl_ReadDWord( + currentEntry, + OFFSET_PS_RIGHTCHILD, + &buffer->rightChild); + + StorageUtl_ReadDWord( + currentEntry, + OFFSET_PS_DIRROOT, + &buffer->dirRootEntry); + + StorageUtl_ReadGUID( + currentEntry, + OFFSET_PS_GUID, + &buffer->clsid); + + StorageUtl_ReadDWord( + currentEntry, + OFFSET_PS_CTIMELOW, + &buffer->ctime.dwLowDateTime); + + StorageUtl_ReadDWord( + currentEntry, + OFFSET_PS_CTIMEHIGH, + &buffer->ctime.dwHighDateTime); + + StorageUtl_ReadDWord( + currentEntry, + OFFSET_PS_MTIMELOW, + &buffer->mtime.dwLowDateTime); + + StorageUtl_ReadDWord( + currentEntry, + OFFSET_PS_MTIMEHIGH, + &buffer->mtime.dwHighDateTime); + + StorageUtl_ReadDWord( + currentEntry, + OFFSET_PS_STARTBLOCK, + &buffer->startingBlock); + + StorageUtl_ReadDWord( + currentEntry, + OFFSET_PS_SIZE, + &buffer->size.LowPart); + + if (This->bigBlockSize < 4096) + { + /* Version 3 files may have junk in the high part of size. */ + buffer->size.HighPart = 0; + } + else + { + StorageUtl_ReadDWord( + currentEntry, + OFFSET_PS_SIZE_HIGH, + &buffer->size.HighPart); + } + } + + return readRes; +} + +/********************************************************************* + * Write the specified directory entry to the file + */ +static HRESULT StorageImpl_WriteDirEntry( + StorageImpl* This, + DirRef index, + const DirEntry* buffer) +{ + BYTE currentEntry[RAW_DIRENTRY_SIZE]; + + UpdateRawDirEntry(currentEntry, buffer); + + return StorageImpl_WriteRawDirEntry(This, index, currentEntry); +} + + +/************************************************************************ + * StorageImpl implementation : Block methods + ***********************************************************************/ + +static ULONGLONG StorageImpl_GetBigBlockOffset(StorageImpl* This, ULONG index) +{ + return (ULONGLONG)(index+1) * This->bigBlockSize; +} + +static HRESULT StorageImpl_ReadBigBlock( + StorageImpl* This, + ULONG blockIndex, + void* buffer, + ULONG* out_read) +{ + ULARGE_INTEGER ulOffset; + DWORD read=0; + HRESULT hr; + + ulOffset.QuadPart = StorageImpl_GetBigBlockOffset(This, blockIndex); + + hr = StorageImpl_ReadAt(This, ulOffset, buffer, This->bigBlockSize, &read); + + if (SUCCEEDED(hr) && read < This->bigBlockSize) + { + /* File ends during this block; fill the rest with 0's. */ + memset((LPBYTE)buffer+read, 0, This->bigBlockSize-read); + } + + if (out_read) *out_read = read; + + return hr; +} + +static BOOL StorageImpl_ReadDWordFromBigBlock( + StorageImpl* This, + ULONG blockIndex, + ULONG offset, + DWORD* value) +{ + ULARGE_INTEGER ulOffset; + DWORD read; + DWORD tmp; + + ulOffset.QuadPart = StorageImpl_GetBigBlockOffset(This, blockIndex); + ulOffset.QuadPart += offset; + + StorageImpl_ReadAt(This, ulOffset, &tmp, sizeof(DWORD), &read); + *value = lendian32toh(tmp); + return (read == sizeof(DWORD)); +} + +static BOOL StorageImpl_WriteBigBlock( + StorageImpl* This, + ULONG blockIndex, + const void* buffer) +{ + ULARGE_INTEGER ulOffset; + DWORD wrote; + + ulOffset.QuadPart = StorageImpl_GetBigBlockOffset(This, blockIndex); + + StorageImpl_WriteAt(This, ulOffset, buffer, This->bigBlockSize, &wrote); + return (wrote == This->bigBlockSize); +} + +static BOOL StorageImpl_WriteDWordToBigBlock( + StorageImpl* This, + ULONG blockIndex, + ULONG offset, + DWORD value) +{ + ULARGE_INTEGER ulOffset; + DWORD wrote; + + ulOffset.QuadPart = StorageImpl_GetBigBlockOffset(This, blockIndex); + ulOffset.QuadPart += offset; + + value = htole32(value); + StorageImpl_WriteAt(This, ulOffset, &value, sizeof(DWORD), &wrote); + return (wrote == sizeof(DWORD)); +} + +/****************************************************************************** + * Storage32Impl_SmallBlocksToBigBlocks + * + * This method will convert a small block chain to a big block chain. + * The small block chain will be destroyed. + */ +static BlockChainStream* Storage32Impl_SmallBlocksToBigBlocks( + StorageImpl* This, + SmallBlockChainStream** ppsbChain) +{ + ULONG bbHeadOfChain = BLOCK_END_OF_CHAIN; + ULARGE_INTEGER size, offset; + ULONG cbRead, cbWritten; + ULARGE_INTEGER cbTotalRead; + DirRef streamEntryRef; + HRESULT resWrite = S_OK; + HRESULT resRead; + DirEntry streamEntry; + BYTE *buffer; + BlockChainStream *bbTempChain = NULL; + BlockChainStream *bigBlockChain = NULL; + + /* + * Create a temporary big block chain that doesn't have + * an associated directory entry. This temporary chain will be + * used to copy data from small blocks to big blocks. + */ + bbTempChain = BlockChainStream_Construct(This, + &bbHeadOfChain, + DIRENTRY_NULL); + if(!bbTempChain) return NULL; + /* + * Grow the big block chain. + */ + size = SmallBlockChainStream_GetSize(*ppsbChain); + BlockChainStream_SetSize(bbTempChain, size); + + /* + * Copy the contents of the small block chain to the big block chain + * by small block size increments. + */ + offset.LowPart = 0; + offset.HighPart = 0; + cbTotalRead.QuadPart = 0; + + buffer = HeapAlloc(GetProcessHeap(),0,DEF_SMALL_BLOCK_SIZE); + do + { + resRead = SmallBlockChainStream_ReadAt(*ppsbChain, + offset, + min(This->smallBlockSize, size.LowPart - offset.LowPart), + buffer, + &cbRead); + if (FAILED(resRead)) + break; + + if (cbRead > 0) + { + cbTotalRead.QuadPart += cbRead; + + resWrite = BlockChainStream_WriteAt(bbTempChain, + offset, + cbRead, + buffer, + &cbWritten); + + if (FAILED(resWrite)) + break; + + offset.LowPart += cbRead; + } + else + { + resRead = STG_E_READFAULT; + break; + } + } while (cbTotalRead.QuadPart < size.QuadPart); + HeapFree(GetProcessHeap(),0,buffer); + + size.HighPart = 0; + size.LowPart = 0; + + if (FAILED(resRead) || FAILED(resWrite)) + { + ERR("conversion failed: resRead = %#lx, resWrite = %#lx\n", resRead, resWrite); + BlockChainStream_SetSize(bbTempChain, size); + BlockChainStream_Destroy(bbTempChain); + return NULL; + } + + /* + * Destroy the small block chain. + */ + streamEntryRef = (*ppsbChain)->ownerDirEntry; + SmallBlockChainStream_SetSize(*ppsbChain, size); + SmallBlockChainStream_Destroy(*ppsbChain); + *ppsbChain = 0; + + /* + * Change the directory entry. This chain is now a big block chain + * and it doesn't reside in the small blocks chain anymore. + */ + StorageImpl_ReadDirEntry(This, streamEntryRef, &streamEntry); + + streamEntry.startingBlock = bbHeadOfChain; + + StorageImpl_WriteDirEntry(This, streamEntryRef, &streamEntry); + + /* + * Destroy the temporary entryless big block chain. + * Create a new big block chain associated with this entry. + */ + BlockChainStream_Destroy(bbTempChain); + bigBlockChain = BlockChainStream_Construct(This, + NULL, + streamEntryRef); + + return bigBlockChain; +} + +/****************************************************************************** + * Storage32Impl_BigBlocksToSmallBlocks + * + * This method will convert a big block chain to a small block chain. + * The big block chain will be destroyed on success. + */ +static SmallBlockChainStream* Storage32Impl_BigBlocksToSmallBlocks( + StorageImpl* This, + BlockChainStream** ppbbChain, + ULARGE_INTEGER newSize) +{ + ULARGE_INTEGER size, offset, cbTotalRead; + ULONG cbRead, cbWritten, sbHeadOfChain = BLOCK_END_OF_CHAIN; + DirRef streamEntryRef; + HRESULT resWrite = S_OK, resRead = S_OK; + DirEntry streamEntry; + BYTE* buffer; + SmallBlockChainStream* sbTempChain; + + TRACE("%p %p\n", This, ppbbChain); + + sbTempChain = SmallBlockChainStream_Construct(This, &sbHeadOfChain, + DIRENTRY_NULL); + + if(!sbTempChain) + return NULL; + + SmallBlockChainStream_SetSize(sbTempChain, newSize); + size = BlockChainStream_GetSize(*ppbbChain); + size.QuadPart = min(size.QuadPart, newSize.QuadPart); + + offset.HighPart = 0; + offset.LowPart = 0; + cbTotalRead.QuadPart = 0; + buffer = HeapAlloc(GetProcessHeap(), 0, This->bigBlockSize); + while(cbTotalRead.QuadPart < size.QuadPart) + { + resRead = BlockChainStream_ReadAt(*ppbbChain, offset, + min(This->bigBlockSize, size.LowPart - offset.LowPart), + buffer, &cbRead); + + if(FAILED(resRead)) + break; + + if(cbRead > 0) + { + cbTotalRead.QuadPart += cbRead; + + resWrite = SmallBlockChainStream_WriteAt(sbTempChain, offset, + cbRead, buffer, &cbWritten); + + if(FAILED(resWrite)) + break; + + offset.LowPart += cbRead; + } + else + { + resRead = STG_E_READFAULT; + break; + } + } + HeapFree(GetProcessHeap(), 0, buffer); + + size.HighPart = 0; + size.LowPart = 0; + + if(FAILED(resRead) || FAILED(resWrite)) + { + ERR("conversion failed: resRead = %#lx, resWrite = %#lx\n", resRead, resWrite); + SmallBlockChainStream_SetSize(sbTempChain, size); + SmallBlockChainStream_Destroy(sbTempChain); + return NULL; + } + + /* destroy the original big block chain */ + streamEntryRef = (*ppbbChain)->ownerDirEntry; + BlockChainStream_SetSize(*ppbbChain, size); + BlockChainStream_Destroy(*ppbbChain); + *ppbbChain = NULL; + + StorageImpl_ReadDirEntry(This, streamEntryRef, &streamEntry); + streamEntry.startingBlock = sbHeadOfChain; + StorageImpl_WriteDirEntry(This, streamEntryRef, &streamEntry); + + SmallBlockChainStream_Destroy(sbTempChain); + return SmallBlockChainStream_Construct(This, NULL, streamEntryRef); +} + +/****************************************************************************** + * Storage32Impl_AddBlockDepot + * + * This will create a depot block, essentially it is a block initialized + * to BLOCK_UNUSEDs. + */ +static void Storage32Impl_AddBlockDepot(StorageImpl* This, ULONG blockIndex, ULONG depotIndex) +{ + BYTE blockBuffer[MAX_BIG_BLOCK_SIZE]; + ULONG rangeLockIndex = RANGELOCK_FIRST / This->bigBlockSize - 1; + ULONG blocksPerDepot = This->bigBlockSize / sizeof(ULONG); + ULONG rangeLockDepot = rangeLockIndex / blocksPerDepot; + + /* + * Initialize blocks as free + */ + memset(blockBuffer, BLOCK_UNUSED, This->bigBlockSize); + + /* Reserve the range lock sector */ + if (depotIndex == rangeLockDepot) + { + ((ULONG*)blockBuffer)[rangeLockIndex % blocksPerDepot] = BLOCK_END_OF_CHAIN; + } + + StorageImpl_WriteBigBlock(This, blockIndex, blockBuffer); +} + +/****************************************************************************** + * Storage32Impl_GetExtDepotBlock + * + * Returns the index of the block that corresponds to the specified depot + * index. This method is only for depot indexes equal or greater than + * COUNT_BBDEPOTINHEADER. + */ +static ULONG Storage32Impl_GetExtDepotBlock(StorageImpl* This, ULONG depotIndex) +{ + ULONG depotBlocksPerExtBlock = (This->bigBlockSize / sizeof(ULONG)) - 1; + ULONG numExtBlocks = depotIndex - COUNT_BBDEPOTINHEADER; + ULONG extBlockCount = numExtBlocks / depotBlocksPerExtBlock; + ULONG extBlockOffset = numExtBlocks % depotBlocksPerExtBlock; + ULONG blockIndex = BLOCK_UNUSED; + ULONG extBlockIndex; + BYTE depotBuffer[MAX_BIG_BLOCK_SIZE]; + int index, num_blocks; + + assert(depotIndex >= COUNT_BBDEPOTINHEADER); + + if (extBlockCount >= This->extBigBlockDepotCount) + return BLOCK_UNUSED; + + if (This->indexExtBlockDepotCached != extBlockCount) + { + extBlockIndex = This->extBigBlockDepotLocations[extBlockCount]; + + StorageImpl_ReadBigBlock(This, extBlockIndex, depotBuffer, NULL); + + num_blocks = This->bigBlockSize / 4; + + for (index = 0; index < num_blocks; index++) + { + StorageUtl_ReadDWord(depotBuffer, index*sizeof(ULONG), &blockIndex); + This->extBlockDepotCached[index] = blockIndex; + } + + This->indexExtBlockDepotCached = extBlockCount; + } + + blockIndex = This->extBlockDepotCached[extBlockOffset]; + + return blockIndex; +} + +/****************************************************************************** + * Storage32Impl_SetExtDepotBlock + * + * Associates the specified block index to the specified depot index. + * This method is only for depot indexes equal or greater than + * COUNT_BBDEPOTINHEADER. + */ +static void Storage32Impl_SetExtDepotBlock(StorageImpl* This, ULONG depotIndex, ULONG blockIndex) +{ + ULONG depotBlocksPerExtBlock = (This->bigBlockSize / sizeof(ULONG)) - 1; + ULONG numExtBlocks = depotIndex - COUNT_BBDEPOTINHEADER; + ULONG extBlockCount = numExtBlocks / depotBlocksPerExtBlock; + ULONG extBlockOffset = numExtBlocks % depotBlocksPerExtBlock; + ULONG extBlockIndex; + + assert(depotIndex >= COUNT_BBDEPOTINHEADER); + + assert(extBlockCount < This->extBigBlockDepotCount); + + extBlockIndex = This->extBigBlockDepotLocations[extBlockCount]; + + if (extBlockIndex != BLOCK_UNUSED) + { + StorageImpl_WriteDWordToBigBlock(This, extBlockIndex, + extBlockOffset * sizeof(ULONG), + blockIndex); + } + + if (This->indexExtBlockDepotCached == extBlockCount) + { + This->extBlockDepotCached[extBlockOffset] = blockIndex; + } +} + +/****************************************************************************** + * Storage32Impl_AddExtBlockDepot + * + * Creates an extended depot block. + */ +static ULONG Storage32Impl_AddExtBlockDepot(StorageImpl* This) +{ + ULONG numExtBlocks = This->extBigBlockDepotCount; + ULONG nextExtBlock = This->extBigBlockDepotStart; + BYTE depotBuffer[MAX_BIG_BLOCK_SIZE]; + ULONG index = BLOCK_UNUSED; + ULONG nextBlockOffset = This->bigBlockSize - sizeof(ULONG); + ULONG blocksPerDepotBlock = This->bigBlockSize / sizeof(ULONG); + ULONG depotBlocksPerExtBlock = blocksPerDepotBlock - 1; + + index = (COUNT_BBDEPOTINHEADER + (numExtBlocks * depotBlocksPerExtBlock)) * + blocksPerDepotBlock; + + if ((numExtBlocks == 0) && (nextExtBlock == BLOCK_END_OF_CHAIN)) + { + /* + * The first extended block. + */ + This->extBigBlockDepotStart = index; + } + else + { + /* + * Find the last existing extended block. + */ + nextExtBlock = This->extBigBlockDepotLocations[This->extBigBlockDepotCount-1]; + + /* + * Add the new extended block to the chain. + */ + StorageImpl_WriteDWordToBigBlock(This, nextExtBlock, nextBlockOffset, + index); + } + + /* + * Initialize this block. + */ + memset(depotBuffer, BLOCK_UNUSED, This->bigBlockSize); + StorageImpl_WriteBigBlock(This, index, depotBuffer); + + /* Add the block to our cache. */ + if (This->extBigBlockDepotLocationsSize == numExtBlocks) + { + ULONG new_cache_size = (This->extBigBlockDepotLocationsSize+1)*2; + ULONG *new_cache = HeapAlloc(GetProcessHeap(), 0, sizeof(ULONG) * new_cache_size); + + memcpy(new_cache, This->extBigBlockDepotLocations, sizeof(ULONG) * This->extBigBlockDepotLocationsSize); + HeapFree(GetProcessHeap(), 0, This->extBigBlockDepotLocations); + + This->extBigBlockDepotLocations = new_cache; + This->extBigBlockDepotLocationsSize = new_cache_size; + } + This->extBigBlockDepotLocations[numExtBlocks] = index; + + return index; +} + +/************************************************************************ + * StorageImpl_GetNextBlockInChain + * + * This method will retrieve the block index of the next big block in + * in the chain. + * + * Params: This - Pointer to the Storage object. + * blockIndex - Index of the block to retrieve the chain + * for. + * nextBlockIndex - receives the return value. + * + * Returns: This method returns the index of the next block in the chain. + * It will return the constants: + * BLOCK_SPECIAL - If the block given was not part of a + * chain. + * BLOCK_END_OF_CHAIN - If the block given was the last in + * a chain. + * BLOCK_UNUSED - If the block given was not past of a chain + * and is available. + * BLOCK_EXTBBDEPOT - This block is part of the extended + * big block depot. + * + * See Windows documentation for more details on IStorage methods. + */ +static HRESULT StorageImpl_GetNextBlockInChain( + StorageImpl* This, + ULONG blockIndex, + ULONG* nextBlockIndex) +{ + ULONG offsetInDepot = blockIndex * sizeof (ULONG); + ULONG depotBlockCount = offsetInDepot / This->bigBlockSize; + ULONG depotBlockOffset = offsetInDepot % This->bigBlockSize; + BYTE depotBuffer[MAX_BIG_BLOCK_SIZE]; + ULONG read; + ULONG depotBlockIndexPos; + int index, num_blocks; + + *nextBlockIndex = BLOCK_SPECIAL; + + if(depotBlockCount >= This->bigBlockDepotCount) + { + WARN("depotBlockCount %ld, bigBlockDepotCount %ld\n", depotBlockCount, This->bigBlockDepotCount); + return STG_E_READFAULT; + } + + /* + * Cache the currently accessed depot block. + */ + if (depotBlockCount != This->indexBlockDepotCached) + { + This->indexBlockDepotCached = depotBlockCount; + + if (depotBlockCount < COUNT_BBDEPOTINHEADER) + { + depotBlockIndexPos = This->bigBlockDepotStart[depotBlockCount]; + } + else + { + /* + * We have to look in the extended depot. + */ + depotBlockIndexPos = Storage32Impl_GetExtDepotBlock(This, depotBlockCount); + } + + StorageImpl_ReadBigBlock(This, depotBlockIndexPos, depotBuffer, &read); + + if (!read) + return STG_E_READFAULT; + + num_blocks = This->bigBlockSize / 4; + + for (index = 0; index < num_blocks; index++) + { + StorageUtl_ReadDWord(depotBuffer, index*sizeof(ULONG), nextBlockIndex); + This->blockDepotCached[index] = *nextBlockIndex; + } + } + + *nextBlockIndex = This->blockDepotCached[depotBlockOffset/sizeof(ULONG)]; + + return S_OK; +} + +/****************************************************************************** + * Storage32Impl_GetNextExtendedBlock + * + * Given an extended block this method will return the next extended block. + * + * NOTES: + * The last ULONG of an extended block is the block index of the next + * extended block. Extended blocks are marked as BLOCK_EXTBBDEPOT in the + * depot. + * + * Return values: + * - The index of the next extended block + * - BLOCK_UNUSED: there is no next extended block. + * - Any other return values denotes failure. + */ +static ULONG Storage32Impl_GetNextExtendedBlock(StorageImpl* This, ULONG blockIndex) +{ + ULONG nextBlockIndex = BLOCK_SPECIAL; + ULONG depotBlockOffset = This->bigBlockSize - sizeof(ULONG); + + StorageImpl_ReadDWordFromBigBlock(This, blockIndex, depotBlockOffset, + &nextBlockIndex); + + return nextBlockIndex; +} + +/****************************************************************************** + * StorageImpl_SetNextBlockInChain + * + * This method will write the index of the specified block's next block + * in the big block depot. + * + * For example: to create the chain 3 -> 1 -> 7 -> End of Chain + * do the following + * + * StorageImpl_SetNextBlockInChain(This, 3, 1); + * StorageImpl_SetNextBlockInChain(This, 1, 7); + * StorageImpl_SetNextBlockInChain(This, 7, BLOCK_END_OF_CHAIN); + * + */ +static void StorageImpl_SetNextBlockInChain( + StorageImpl* This, + ULONG blockIndex, + ULONG nextBlock) +{ + ULONG offsetInDepot = blockIndex * sizeof (ULONG); + ULONG depotBlockCount = offsetInDepot / This->bigBlockSize; + ULONG depotBlockOffset = offsetInDepot % This->bigBlockSize; + ULONG depotBlockIndexPos; + + assert(depotBlockCount < This->bigBlockDepotCount); + assert(blockIndex != nextBlock); + + if (blockIndex == (RANGELOCK_FIRST / This->bigBlockSize) - 1) + /* This should never happen (storage file format spec forbids it), but + * older versions of Wine may have generated broken files. We don't want to + * assert and potentially lose data, but we do want to know if this ever + * happens in a newly-created file. */ + ERR("Using range lock page\n"); + + if (depotBlockCount < COUNT_BBDEPOTINHEADER) + { + depotBlockIndexPos = This->bigBlockDepotStart[depotBlockCount]; + } + else + { + /* + * We have to look in the extended depot. + */ + depotBlockIndexPos = Storage32Impl_GetExtDepotBlock(This, depotBlockCount); + } + + StorageImpl_WriteDWordToBigBlock(This, depotBlockIndexPos, depotBlockOffset, + nextBlock); + /* + * Update the cached block depot, if necessary. + */ + if (depotBlockCount == This->indexBlockDepotCached) + { + This->blockDepotCached[depotBlockOffset/sizeof(ULONG)] = nextBlock; + } +} + +/****************************************************************************** + * StorageImpl_GetNextFreeBigBlock + * + * Returns the index of the next free big block. + * If the big block depot is filled, this method will enlarge it. + * + */ +static ULONG StorageImpl_GetNextFreeBigBlock( + StorageImpl* This, ULONG neededAddNumBlocks) +{ + ULONG depotBlockIndexPos; + BYTE depotBuffer[MAX_BIG_BLOCK_SIZE]; + ULONG depotBlockOffset; + ULONG blocksPerDepot = This->bigBlockSize / sizeof(ULONG); + ULONG nextBlockIndex = BLOCK_SPECIAL; + int depotIndex = 0; + ULONG freeBlock = BLOCK_UNUSED; + ULONG read; + ULARGE_INTEGER neededSize; + STATSTG statstg; + + depotIndex = This->prevFreeBlock / blocksPerDepot; + depotBlockOffset = (This->prevFreeBlock % blocksPerDepot) * sizeof(ULONG); + + /* + * Scan the entire big block depot until we find a block marked free + */ + while (nextBlockIndex != BLOCK_UNUSED) + { + if (depotIndex < COUNT_BBDEPOTINHEADER) + { + depotBlockIndexPos = This->bigBlockDepotStart[depotIndex]; + + /* + * Grow the primary depot. + */ + if (depotBlockIndexPos == BLOCK_UNUSED) + { + depotBlockIndexPos = depotIndex*blocksPerDepot; + + /* + * Add a block depot. + */ + Storage32Impl_AddBlockDepot(This, depotBlockIndexPos, depotIndex); + This->bigBlockDepotCount++; + This->bigBlockDepotStart[depotIndex] = depotBlockIndexPos; + + /* + * Flag it as a block depot. + */ + StorageImpl_SetNextBlockInChain(This, + depotBlockIndexPos, + BLOCK_SPECIAL); + + /* Save new header information. + */ + StorageImpl_SaveFileHeader(This); + } + } + else + { + depotBlockIndexPos = Storage32Impl_GetExtDepotBlock(This, depotIndex); + + if (depotBlockIndexPos == BLOCK_UNUSED) + { + /* + * Grow the extended depot. + */ + ULONG extIndex = BLOCK_UNUSED; + ULONG numExtBlocks = depotIndex - COUNT_BBDEPOTINHEADER; + ULONG extBlockOffset = numExtBlocks % (blocksPerDepot - 1); + + if (extBlockOffset == 0) + { + /* We need an extended block. + */ + extIndex = Storage32Impl_AddExtBlockDepot(This); + This->extBigBlockDepotCount++; + depotBlockIndexPos = extIndex + 1; + } + else + depotBlockIndexPos = depotIndex * blocksPerDepot; + + /* + * Add a block depot and mark it in the extended block. + */ + Storage32Impl_AddBlockDepot(This, depotBlockIndexPos, depotIndex); + This->bigBlockDepotCount++; + Storage32Impl_SetExtDepotBlock(This, depotIndex, depotBlockIndexPos); + + /* Flag the block depot. + */ + StorageImpl_SetNextBlockInChain(This, + depotBlockIndexPos, + BLOCK_SPECIAL); + + /* If necessary, flag the extended depot block. + */ + if (extIndex != BLOCK_UNUSED) + StorageImpl_SetNextBlockInChain(This, extIndex, BLOCK_EXTBBDEPOT); + + /* Save header information. + */ + StorageImpl_SaveFileHeader(This); + } + } + + StorageImpl_ReadBigBlock(This, depotBlockIndexPos, depotBuffer, &read); + + if (read) + { + while ( ( (depotBlockOffset/sizeof(ULONG) ) < blocksPerDepot) && + ( nextBlockIndex != BLOCK_UNUSED)) + { + StorageUtl_ReadDWord(depotBuffer, depotBlockOffset, &nextBlockIndex); + + if (nextBlockIndex == BLOCK_UNUSED) + { + freeBlock = (depotIndex * blocksPerDepot) + + (depotBlockOffset/sizeof(ULONG)); + } + + depotBlockOffset += sizeof(ULONG); + } + } + + depotIndex++; + depotBlockOffset = 0; + } + + /* + * make sure that the block physically exists before using it + */ + neededSize.QuadPart = StorageImpl_GetBigBlockOffset(This, freeBlock)+This->bigBlockSize * neededAddNumBlocks; + + ILockBytes_Stat(This->lockBytes, &statstg, STATFLAG_NONAME); + + if (neededSize.QuadPart > statstg.cbSize.QuadPart) + ILockBytes_SetSize(This->lockBytes, neededSize); + + This->prevFreeBlock = freeBlock; + + return freeBlock; +} + +/****************************************************************************** + * StorageImpl_FreeBigBlock + * + * This method will flag the specified block as free in the big block depot. + */ +static void StorageImpl_FreeBigBlock( + StorageImpl* This, + ULONG blockIndex) +{ + StorageImpl_SetNextBlockInChain(This, blockIndex, BLOCK_UNUSED); + + if (blockIndex < This->prevFreeBlock) + This->prevFreeBlock = blockIndex; +} + + +static HRESULT StorageImpl_BaseWriteDirEntry(StorageBaseImpl *base, + DirRef index, const DirEntry *data) +{ + StorageImpl *This = (StorageImpl*)base; + return StorageImpl_WriteDirEntry(This, index, data); +} + +static HRESULT StorageImpl_BaseReadDirEntry(StorageBaseImpl *base, + DirRef index, DirEntry *data) +{ + StorageImpl *This = (StorageImpl*)base; + return StorageImpl_ReadDirEntry(This, index, data); +} + +static BlockChainStream **StorageImpl_GetFreeBlockChainCacheEntry(StorageImpl* This) +{ + int i; + + for (i=0; i<BLOCKCHAIN_CACHE_SIZE; i++) + { + if (!This->blockChainCache[i]) + { + return &This->blockChainCache[i]; + } + } + + i = This->blockChainToEvict; + + BlockChainStream_Destroy(This->blockChainCache[i]); + This->blockChainCache[i] = NULL; + + This->blockChainToEvict++; + if (This->blockChainToEvict == BLOCKCHAIN_CACHE_SIZE) + This->blockChainToEvict = 0; + + return &This->blockChainCache[i]; +} + +static BlockChainStream **StorageImpl_GetCachedBlockChainStream(StorageImpl *This, + DirRef index) +{ + int i, free_index=-1; + + for (i=0; i<BLOCKCHAIN_CACHE_SIZE; i++) + { + if (!This->blockChainCache[i]) + { + if (free_index == -1) free_index = i; + } + else if (This->blockChainCache[i]->ownerDirEntry == index) + { + return &This->blockChainCache[i]; + } + } + + if (free_index == -1) + { + free_index = This->blockChainToEvict; + + BlockChainStream_Destroy(This->blockChainCache[free_index]); + This->blockChainCache[free_index] = NULL; + + This->blockChainToEvict++; + if (This->blockChainToEvict == BLOCKCHAIN_CACHE_SIZE) + This->blockChainToEvict = 0; + } + + This->blockChainCache[free_index] = BlockChainStream_Construct(This, NULL, index); + return &This->blockChainCache[free_index]; +} + +static void StorageImpl_DeleteCachedBlockChainStream(StorageImpl *This, DirRef index) +{ + int i; + + for (i=0; i<BLOCKCHAIN_CACHE_SIZE; i++) + { + if (This->blockChainCache[i] && This->blockChainCache[i]->ownerDirEntry == index) + { + BlockChainStream_Destroy(This->blockChainCache[i]); + This->blockChainCache[i] = NULL; + return; + } + } +} + +static HRESULT StorageImpl_StreamReadAt(StorageBaseImpl *base, DirRef index, + ULARGE_INTEGER offset, ULONG size, void *buffer, ULONG *bytesRead) +{ + StorageImpl *This = (StorageImpl*)base; + DirEntry data; + HRESULT hr; + ULONG bytesToRead; + + hr = StorageImpl_ReadDirEntry(This, index, &data); + if (FAILED(hr)) return hr; + + if (data.size.QuadPart == 0) + { + *bytesRead = 0; + return S_OK; + } + + if (offset.QuadPart + size > data.size.QuadPart) + { + bytesToRead = data.size.QuadPart - offset.QuadPart; + } + else + { + bytesToRead = size; + } + + if (data.size.QuadPart < LIMIT_TO_USE_SMALL_BLOCK) + { + SmallBlockChainStream *stream; + + stream = SmallBlockChainStream_Construct(This, NULL, index); + if (!stream) return E_OUTOFMEMORY; + + hr = SmallBlockChainStream_ReadAt(stream, offset, bytesToRead, buffer, bytesRead); + + SmallBlockChainStream_Destroy(stream); + + return hr; + } + else + { + BlockChainStream *stream = NULL; + + stream = *StorageImpl_GetCachedBlockChainStream(This, index); + if (!stream) return E_OUTOFMEMORY; + + hr = BlockChainStream_ReadAt(stream, offset, bytesToRead, buffer, bytesRead); + + return hr; + } +} + +static HRESULT StorageImpl_StreamSetSize(StorageBaseImpl *base, DirRef index, + ULARGE_INTEGER newsize) +{ + StorageImpl *This = (StorageImpl*)base; + DirEntry data; + HRESULT hr; + SmallBlockChainStream *smallblock=NULL; + BlockChainStream **pbigblock=NULL, *bigblock=NULL; + + hr = StorageImpl_ReadDirEntry(This, index, &data); + if (FAILED(hr)) return hr; + + /* In simple mode keep the stream size above the small block limit */ + if (This->base.openFlags & STGM_SIMPLE) + newsize.QuadPart = max(newsize.QuadPart, LIMIT_TO_USE_SMALL_BLOCK); + + if (data.size.QuadPart == newsize.QuadPart) + return S_OK; + + /* Create a block chain object of the appropriate type */ + if (data.size.QuadPart == 0) + { + if (newsize.QuadPart < LIMIT_TO_USE_SMALL_BLOCK) + { + smallblock = SmallBlockChainStream_Construct(This, NULL, index); + if (!smallblock) return E_OUTOFMEMORY; + } + else + { + pbigblock = StorageImpl_GetCachedBlockChainStream(This, index); + bigblock = *pbigblock; + if (!bigblock) return E_OUTOFMEMORY; + } + } + else if (data.size.QuadPart < LIMIT_TO_USE_SMALL_BLOCK) + { + smallblock = SmallBlockChainStream_Construct(This, NULL, index); + if (!smallblock) return E_OUTOFMEMORY; + } + else + { + pbigblock = StorageImpl_GetCachedBlockChainStream(This, index); + bigblock = *pbigblock; + if (!bigblock) return E_OUTOFMEMORY; + } + + /* Change the block chain type if necessary. */ + if (smallblock && newsize.QuadPart >= LIMIT_TO_USE_SMALL_BLOCK) + { + bigblock = Storage32Impl_SmallBlocksToBigBlocks(This, &smallblock); + if (!bigblock) + { + SmallBlockChainStream_Destroy(smallblock); + return E_FAIL; + } + + pbigblock = StorageImpl_GetFreeBlockChainCacheEntry(This); + *pbigblock = bigblock; + } + else if (bigblock && newsize.QuadPart < LIMIT_TO_USE_SMALL_BLOCK) + { + smallblock = Storage32Impl_BigBlocksToSmallBlocks(This, pbigblock, newsize); + if (!smallblock) + return E_FAIL; + } + + /* Set the size of the block chain. */ + if (smallblock) + { + SmallBlockChainStream_SetSize(smallblock, newsize); + SmallBlockChainStream_Destroy(smallblock); + } + else + { + BlockChainStream_SetSize(bigblock, newsize); + } + + /* Set the size in the directory entry. */ + hr = StorageImpl_ReadDirEntry(This, index, &data); + if (SUCCEEDED(hr)) + { + data.size = newsize; + + hr = StorageImpl_WriteDirEntry(This, index, &data); + } + return hr; +} + +static HRESULT StorageImpl_StreamWriteAt(StorageBaseImpl *base, DirRef index, + ULARGE_INTEGER offset, ULONG size, const void *buffer, ULONG *bytesWritten) +{ + StorageImpl *This = (StorageImpl*)base; + DirEntry data; + HRESULT hr; + ULARGE_INTEGER newSize; + + hr = StorageImpl_ReadDirEntry(This, index, &data); + if (FAILED(hr)) return hr; + + /* Grow the stream if necessary */ + newSize.QuadPart = offset.QuadPart + size; + + if (newSize.QuadPart > data.size.QuadPart) + { + hr = StorageImpl_StreamSetSize(base, index, newSize); + if (FAILED(hr)) + return hr; + + hr = StorageImpl_ReadDirEntry(This, index, &data); + if (FAILED(hr)) return hr; + } + + if (data.size.QuadPart < LIMIT_TO_USE_SMALL_BLOCK) + { + SmallBlockChainStream *stream; + + stream = SmallBlockChainStream_Construct(This, NULL, index); + if (!stream) return E_OUTOFMEMORY; + + hr = SmallBlockChainStream_WriteAt(stream, offset, size, buffer, bytesWritten); + + SmallBlockChainStream_Destroy(stream); + + return hr; + } + else + { + BlockChainStream *stream; + + stream = *StorageImpl_GetCachedBlockChainStream(This, index); + if (!stream) return E_OUTOFMEMORY; + + return BlockChainStream_WriteAt(stream, offset, size, buffer, bytesWritten); + } +} + +static HRESULT StorageImpl_StreamLink(StorageBaseImpl *base, DirRef dst, + DirRef src) +{ + StorageImpl *This = (StorageImpl*)base; + DirEntry dst_data, src_data; + HRESULT hr; + + hr = StorageImpl_ReadDirEntry(This, dst, &dst_data); + + if (SUCCEEDED(hr)) + hr = StorageImpl_ReadDirEntry(This, src, &src_data); + + if (SUCCEEDED(hr)) + { + StorageImpl_DeleteCachedBlockChainStream(This, src); + dst_data.startingBlock = src_data.startingBlock; + dst_data.size = src_data.size; + + hr = StorageImpl_WriteDirEntry(This, dst, &dst_data); + } + + return hr; +} + +static HRESULT StorageImpl_Refresh(StorageImpl *This, BOOL new_object, BOOL create) +{ + HRESULT hr=S_OK; + DirEntry currentEntry; + DirRef currentEntryRef; + BlockChainStream *blockChainStream; + + if (create) + { + ULARGE_INTEGER size; + BYTE bigBlockBuffer[MAX_BIG_BLOCK_SIZE]; + + /* Discard any existing data. */ + size.QuadPart = 0; + ILockBytes_SetSize(This->lockBytes, size); + + /* + * Initialize all header variables: + * - The big block depot consists of one block and it is at block 0 + * - The directory table starts at block 1 + * - There is no small block depot + */ + memset( This->bigBlockDepotStart, + BLOCK_UNUSED, + sizeof(This->bigBlockDepotStart)); + + This->bigBlockDepotCount = 1; + This->bigBlockDepotStart[0] = 0; + This->rootStartBlock = 1; + This->smallBlockLimit = LIMIT_TO_USE_SMALL_BLOCK; + This->smallBlockDepotStart = BLOCK_END_OF_CHAIN; + if (This->bigBlockSize == 4096) + This->bigBlockSizeBits = MAX_BIG_BLOCK_SIZE_BITS; + else + This->bigBlockSizeBits = MIN_BIG_BLOCK_SIZE_BITS; + This->smallBlockSizeBits = DEF_SMALL_BLOCK_SIZE_BITS; + This->extBigBlockDepotStart = BLOCK_END_OF_CHAIN; + This->extBigBlockDepotCount = 0; + + StorageImpl_SaveFileHeader(This); + + /* + * Add one block for the big block depot and one block for the directory table + */ + size.HighPart = 0; + size.LowPart = This->bigBlockSize * 3; + ILockBytes_SetSize(This->lockBytes, size); + + /* + * Initialize the big block depot + */ + memset(bigBlockBuffer, BLOCK_UNUSED, This->bigBlockSize); + StorageUtl_WriteDWord(bigBlockBuffer, 0, BLOCK_SPECIAL); + StorageUtl_WriteDWord(bigBlockBuffer, sizeof(ULONG), BLOCK_END_OF_CHAIN); + StorageImpl_WriteBigBlock(This, 0, bigBlockBuffer); + } + else + { + /* + * Load the header for the file. + */ + hr = StorageImpl_LoadFileHeader(This); + + if (FAILED(hr)) + { + return hr; + } + } + + /* + * There is no block depot cached yet. + */ + This->indexBlockDepotCached = 0xFFFFFFFF; + This->indexExtBlockDepotCached = 0xFFFFFFFF; + + /* + * Start searching for free blocks with block 0. + */ + This->prevFreeBlock = 0; + + This->firstFreeSmallBlock = 0; + + /* Read the extended big block depot locations. */ + if (This->extBigBlockDepotCount != 0) + { + ULONG current_block = This->extBigBlockDepotStart; + ULONG cache_size = This->extBigBlockDepotCount * 2; + ULONG i; + + This->extBigBlockDepotLocations = HeapAlloc(GetProcessHeap(), 0, sizeof(ULONG) * cache_size); + if (!This->extBigBlockDepotLocations) + { + return E_OUTOFMEMORY; + } + + This->extBigBlockDepotLocationsSize = cache_size; + + for (i=0; i<This->extBigBlockDepotCount; i++) + { + if (current_block == BLOCK_END_OF_CHAIN) + { + WARN("File has too few extended big block depot blocks.\n"); + return STG_E_DOCFILECORRUPT; + } + This->extBigBlockDepotLocations[i] = current_block; + current_block = Storage32Impl_GetNextExtendedBlock(This, current_block); + } + } + else + { + This->extBigBlockDepotLocations = NULL; + This->extBigBlockDepotLocationsSize = 0; + } + + /* + * Create the block chain abstractions. + */ + if(!(blockChainStream = + BlockChainStream_Construct(This, &This->rootStartBlock, DIRENTRY_NULL))) + { + return STG_E_READFAULT; + } + if (!new_object) + BlockChainStream_Destroy(This->rootBlockChain); + This->rootBlockChain = blockChainStream; + + if(!(blockChainStream = + BlockChainStream_Construct(This, &This->smallBlockDepotStart, + DIRENTRY_NULL))) + { + return STG_E_READFAULT; + } + if (!new_object) + BlockChainStream_Destroy(This->smallBlockDepotChain); + This->smallBlockDepotChain = blockChainStream; + + /* + * Write the root storage entry (memory only) + */ + if (create) + { + DirEntry rootEntry; + /* + * Initialize the directory table + */ + memset(&rootEntry, 0, sizeof(rootEntry)); + lstrcpyW(rootEntry.name, L"Root Entry"); + rootEntry.sizeOfNameString = sizeof(L"Root Entry"); + rootEntry.stgType = STGTY_ROOT; + rootEntry.leftChild = DIRENTRY_NULL; + rootEntry.rightChild = DIRENTRY_NULL; + rootEntry.dirRootEntry = DIRENTRY_NULL; + rootEntry.startingBlock = BLOCK_END_OF_CHAIN; + rootEntry.size.HighPart = 0; + rootEntry.size.LowPart = 0; + + StorageImpl_WriteDirEntry(This, 0, &rootEntry); + } + + /* + * Find the ID of the root storage. + */ + currentEntryRef = 0; + + do + { + hr = StorageImpl_ReadDirEntry( + This, + currentEntryRef, + ¤tEntry); + + if (SUCCEEDED(hr)) + { + if ( (currentEntry.sizeOfNameString != 0 ) && + (currentEntry.stgType == STGTY_ROOT) ) + { + This->base.storageDirEntry = currentEntryRef; + } + } + + currentEntryRef++; + + } while (SUCCEEDED(hr) && (This->base.storageDirEntry == DIRENTRY_NULL) ); + + if (FAILED(hr)) + { + return STG_E_READFAULT; + } + + /* + * Create the block chain abstraction for the small block root chain. + */ + if(!(blockChainStream = + BlockChainStream_Construct(This, NULL, This->base.storageDirEntry))) + { + return STG_E_READFAULT; + } + if (!new_object) + BlockChainStream_Destroy(This->smallBlockRootChain); + This->smallBlockRootChain = blockChainStream; + + if (!new_object) + { + int i; + for (i=0; i<BLOCKCHAIN_CACHE_SIZE; i++) + { + BlockChainStream_Destroy(This->blockChainCache[i]); + This->blockChainCache[i] = NULL; + } + } + + return hr; +} + +static HRESULT StorageImpl_GetTransactionSig(StorageBaseImpl *base, + ULONG* result, BOOL refresh) +{ + StorageImpl *This = (StorageImpl*)base; + HRESULT hr=S_OK; + DWORD oldTransactionSig = This->transactionSig; + + if (refresh) + { + ULARGE_INTEGER offset; + ULONG bytes_read; + BYTE data[4]; + + offset.HighPart = 0; + offset.LowPart = OFFSET_TRANSACTIONSIG; + hr = StorageImpl_ReadAt(This, offset, data, 4, &bytes_read); + + if (SUCCEEDED(hr)) + { + StorageUtl_ReadDWord(data, 0, &This->transactionSig); + + if (oldTransactionSig != This->transactionSig) + { + /* Someone else wrote to this, so toss all cached information. */ + TRACE("signature changed\n"); + + hr = StorageImpl_Refresh(This, FALSE, FALSE); + } + + if (FAILED(hr)) + This->transactionSig = oldTransactionSig; + } + } + + *result = This->transactionSig; + + return hr; +} + +static HRESULT StorageImpl_SetTransactionSig(StorageBaseImpl *base, + ULONG value) +{ + StorageImpl *This = (StorageImpl*)base; + + This->transactionSig = value; + StorageImpl_SaveFileHeader(This); + + return S_OK; +} + +static HRESULT StorageImpl_LockRegion(StorageImpl *This, ULARGE_INTEGER offset, + ULARGE_INTEGER cb, DWORD dwLockType, BOOL *supported) +{ + if ((dwLockType & This->locks_supported) == 0) + { + if (supported) *supported = FALSE; + return S_OK; + } + + if (supported) *supported = TRUE; + return ILockBytes_LockRegion(This->lockBytes, offset, cb, dwLockType); +} + +static HRESULT StorageImpl_UnlockRegion(StorageImpl *This, ULARGE_INTEGER offset, + ULARGE_INTEGER cb, DWORD dwLockType) +{ + if ((dwLockType & This->locks_supported) == 0) + return S_OK; + + return ILockBytes_UnlockRegion(This->lockBytes, offset, cb, dwLockType); +} + +/* Internal function */ +static HRESULT StorageImpl_LockRegionSync(StorageImpl *This, ULARGE_INTEGER offset, + ULARGE_INTEGER cb, DWORD dwLockType, BOOL *supported) +{ + HRESULT hr; + int delay = 0; + DWORD start_time = GetTickCount(); + DWORD last_sanity_check = start_time; + ULARGE_INTEGER sanity_offset, sanity_cb; + + sanity_offset.QuadPart = RANGELOCK_UNK1_FIRST; + sanity_cb.QuadPart = RANGELOCK_UNK1_LAST - RANGELOCK_UNK1_FIRST + 1; + + do + { + hr = StorageImpl_LockRegion(This, offset, cb, dwLockType, supported); + + if (hr == STG_E_ACCESSDENIED || hr == STG_E_LOCKVIOLATION) + { + DWORD current_time = GetTickCount(); + if (current_time - start_time >= 20000) + { + /* timeout */ + break; + } + if (current_time - last_sanity_check >= 500) + { + /* Any storage implementation with the file open in a + * shared mode should not lock these bytes for writing. However, + * some programs (LibreOffice Writer) will keep ALL bytes locked + * when opening in exclusive mode. We can use a read lock to + * detect this case early, and not hang a full 20 seconds. + * + * This can collide with another attempt to open the file in + * exclusive mode, but it's unlikely, and someone would fail anyway. */ + hr = StorageImpl_LockRegion(This, sanity_offset, sanity_cb, WINE_LOCK_READ, NULL); + if (hr == STG_E_ACCESSDENIED || hr == STG_E_LOCKVIOLATION) + break; + if (SUCCEEDED(hr)) + { + StorageImpl_UnlockRegion(This, sanity_offset, sanity_cb, WINE_LOCK_READ); + hr = STG_E_ACCESSDENIED; + } + + last_sanity_check = current_time; + } + Sleep(delay); + if (delay < 150) delay++; + } + } while (hr == STG_E_ACCESSDENIED || hr == STG_E_LOCKVIOLATION); + + return hr; +} + +static HRESULT StorageImpl_LockTransaction(StorageBaseImpl *base, BOOL write) +{ + StorageImpl *This = (StorageImpl*)base; + HRESULT hr; + ULARGE_INTEGER offset, cb; + + if (write) + { + /* Synchronous grab of second priority range, the commit lock, and the + * lock-checking lock. */ + offset.QuadPart = RANGELOCK_TRANSACTION_FIRST; + cb.QuadPart = RANGELOCK_TRANSACTION_LAST - RANGELOCK_TRANSACTION_FIRST + 1; + } + else + { + offset.QuadPart = RANGELOCK_COMMIT; + cb.QuadPart = 1; + } + + hr = StorageImpl_LockRegionSync(This, offset, cb, LOCK_ONLYONCE, NULL); + + return hr; +} + +static HRESULT StorageImpl_UnlockTransaction(StorageBaseImpl *base, BOOL write) +{ + StorageImpl *This = (StorageImpl*)base; + HRESULT hr; + ULARGE_INTEGER offset, cb; + + if (write) + { + offset.QuadPart = RANGELOCK_TRANSACTION_FIRST; + cb.QuadPart = RANGELOCK_TRANSACTION_LAST - RANGELOCK_TRANSACTION_FIRST + 1; + } + else + { + offset.QuadPart = RANGELOCK_COMMIT; + cb.QuadPart = 1; + } + + hr = StorageImpl_UnlockRegion(This, offset, cb, LOCK_ONLYONCE); + + return hr; +} + +static HRESULT StorageImpl_GetFilename(StorageBaseImpl* iface, LPWSTR *result) +{ + StorageImpl *This = (StorageImpl*) iface; + STATSTG statstg; + HRESULT hr; + + hr = ILockBytes_Stat(This->lockBytes, &statstg, 0); + + *result = statstg.pwcsName; + + return hr; +} + +static HRESULT StorageImpl_CheckLockRange(StorageImpl *This, ULONG start, + ULONG end, HRESULT fail_hr) +{ + HRESULT hr; + ULARGE_INTEGER offset, cb; + + offset.QuadPart = start; + cb.QuadPart = 1 + end - start; + + hr = StorageImpl_LockRegion(This, offset, cb, LOCK_ONLYONCE, NULL); + if (SUCCEEDED(hr)) StorageImpl_UnlockRegion(This, offset, cb, LOCK_ONLYONCE); + + if (FAILED(hr)) + return fail_hr; + else + return S_OK; +} + +static HRESULT StorageImpl_LockOne(StorageImpl *This, ULONG start, ULONG end) +{ + HRESULT hr=S_OK; + int i, j; + ULARGE_INTEGER offset, cb; + + cb.QuadPart = 1; + + for (i=start; i<=end; i++) + { + offset.QuadPart = i; + hr = StorageImpl_LockRegion(This, offset, cb, LOCK_ONLYONCE, NULL); + if (hr != STG_E_ACCESSDENIED && hr != STG_E_LOCKVIOLATION) + break; + } + + if (SUCCEEDED(hr)) + { + for (j = 0; j < ARRAY_SIZE(This->locked_bytes); j++) + { + if (This->locked_bytes[j] == 0) + { + This->locked_bytes[j] = i; + break; + } + } + } + + return hr; +} + +static HRESULT StorageImpl_GrabLocks(StorageImpl *This, DWORD openFlags) +{ + HRESULT hr; + ULARGE_INTEGER offset; + ULARGE_INTEGER cb; + DWORD share_mode = STGM_SHARE_MODE(openFlags); + BOOL supported; + + if (openFlags & STGM_NOSNAPSHOT) + { + /* STGM_NOSNAPSHOT implies deny write */ + if (share_mode == STGM_SHARE_DENY_READ) share_mode = STGM_SHARE_EXCLUSIVE; + else if (share_mode != STGM_SHARE_EXCLUSIVE) share_mode = STGM_SHARE_DENY_WRITE; + } + + /* Wrap all other locking inside a single lock so we can check ranges safely */ + offset.QuadPart = RANGELOCK_CHECKLOCKS; + cb.QuadPart = 1; + hr = StorageImpl_LockRegionSync(This, offset, cb, LOCK_ONLYONCE, &supported); + + /* If the ILockBytes doesn't support locking that's ok. */ + if (!supported) return S_OK; + else if (FAILED(hr)) return hr; + + hr = S_OK; + + /* First check for any conflicting locks. */ + if ((openFlags & STGM_PRIORITY) == STGM_PRIORITY) + hr = StorageImpl_CheckLockRange(This, RANGELOCK_COMMIT, RANGELOCK_COMMIT, STG_E_LOCKVIOLATION); + + if (SUCCEEDED(hr) && (STGM_ACCESS_MODE(openFlags) != STGM_WRITE)) + hr = StorageImpl_CheckLockRange(This, RANGELOCK_DENY_READ_FIRST, RANGELOCK_DENY_READ_LAST, STG_E_SHAREVIOLATION); + + if (SUCCEEDED(hr) && (STGM_ACCESS_MODE(openFlags) != STGM_READ)) + hr = StorageImpl_CheckLockRange(This, RANGELOCK_DENY_WRITE_FIRST, RANGELOCK_DENY_WRITE_LAST, STG_E_SHAREVIOLATION); + + if (SUCCEEDED(hr) && (share_mode == STGM_SHARE_DENY_READ || share_mode == STGM_SHARE_EXCLUSIVE)) + hr = StorageImpl_CheckLockRange(This, RANGELOCK_READ_FIRST, RANGELOCK_READ_LAST, STG_E_LOCKVIOLATION); + + if (SUCCEEDED(hr) && (share_mode == STGM_SHARE_DENY_WRITE || share_mode == STGM_SHARE_EXCLUSIVE)) + hr = StorageImpl_CheckLockRange(This, RANGELOCK_WRITE_FIRST, RANGELOCK_WRITE_LAST, STG_E_LOCKVIOLATION); + + if (SUCCEEDED(hr) && STGM_ACCESS_MODE(openFlags) == STGM_READ && share_mode == STGM_SHARE_EXCLUSIVE) + { + hr = StorageImpl_CheckLockRange(This, 0, RANGELOCK_CHECKLOCKS-1, STG_E_LOCKVIOLATION); + + if (SUCCEEDED(hr)) + hr = StorageImpl_CheckLockRange(This, RANGELOCK_CHECKLOCKS+1, RANGELOCK_LAST, STG_E_LOCKVIOLATION); + } + + /* Then grab our locks. */ + if (SUCCEEDED(hr) && (openFlags & STGM_PRIORITY) == STGM_PRIORITY) + { + hr = StorageImpl_LockOne(This, RANGELOCK_PRIORITY1_FIRST, RANGELOCK_PRIORITY1_LAST); + if (SUCCEEDED(hr)) + hr = StorageImpl_LockOne(This, RANGELOCK_PRIORITY2_FIRST, RANGELOCK_PRIORITY2_LAST); + } + + if (SUCCEEDED(hr) && (STGM_ACCESS_MODE(openFlags) != STGM_WRITE)) + hr = StorageImpl_LockOne(This, RANGELOCK_READ_FIRST, RANGELOCK_READ_LAST); + + if (SUCCEEDED(hr) && (STGM_ACCESS_MODE(openFlags) != STGM_READ)) + hr = StorageImpl_LockOne(This, RANGELOCK_WRITE_FIRST, RANGELOCK_WRITE_LAST); + + if (SUCCEEDED(hr) && (share_mode == STGM_SHARE_DENY_READ || share_mode == STGM_SHARE_EXCLUSIVE)) + hr = StorageImpl_LockOne(This, RANGELOCK_DENY_READ_FIRST, RANGELOCK_DENY_READ_LAST); + + if (SUCCEEDED(hr) && (share_mode == STGM_SHARE_DENY_WRITE || share_mode == STGM_SHARE_EXCLUSIVE)) + hr = StorageImpl_LockOne(This, RANGELOCK_DENY_WRITE_FIRST, RANGELOCK_DENY_WRITE_LAST); + + if (SUCCEEDED(hr) && (openFlags & STGM_NOSNAPSHOT) == STGM_NOSNAPSHOT) + hr = StorageImpl_LockOne(This, RANGELOCK_NOSNAPSHOT_FIRST, RANGELOCK_NOSNAPSHOT_LAST); + + offset.QuadPart = RANGELOCK_CHECKLOCKS; + cb.QuadPart = 1; + StorageImpl_UnlockRegion(This, offset, cb, LOCK_ONLYONCE); + + return hr; +} + +static HRESULT StorageImpl_Flush(StorageBaseImpl *storage) +{ + StorageImpl *This = (StorageImpl*)storage; + int i; + HRESULT hr; + TRACE("(%p)\n", This); + + hr = BlockChainStream_Flush(This->smallBlockRootChain); + + if (SUCCEEDED(hr)) + hr = BlockChainStream_Flush(This->rootBlockChain); + + if (SUCCEEDED(hr)) + hr = BlockChainStream_Flush(This->smallBlockDepotChain); + + for (i=0; SUCCEEDED(hr) && i<BLOCKCHAIN_CACHE_SIZE; i++) + if (This->blockChainCache[i]) + hr = BlockChainStream_Flush(This->blockChainCache[i]); + + if (SUCCEEDED(hr)) + hr = ILockBytes_Flush(This->lockBytes); + + return hr; +} + +static void StorageImpl_Invalidate(StorageBaseImpl* iface) +{ + StorageImpl *This = (StorageImpl*) iface; + + StorageBaseImpl_DeleteAll(&This->base); + + This->base.reverted = TRUE; +} + +static void StorageImpl_Destroy(StorageBaseImpl* iface) +{ + StorageImpl *This = (StorageImpl*) iface; + int i; + TRACE("(%p)\n", This); + + StorageImpl_Flush(iface); + + StorageImpl_Invalidate(iface); + + HeapFree(GetProcessHeap(), 0, This->extBigBlockDepotLocations); + + BlockChainStream_Destroy(This->smallBlockRootChain); + BlockChainStream_Destroy(This->rootBlockChain); + BlockChainStream_Destroy(This->smallBlockDepotChain); + + for (i = 0; i < BLOCKCHAIN_CACHE_SIZE; i++) + BlockChainStream_Destroy(This->blockChainCache[i]); + + for (i = 0; i < ARRAY_SIZE(This->locked_bytes); i++) + { + ULARGE_INTEGER offset, cb; + cb.QuadPart = 1; + if (This->locked_bytes[i] != 0) + { + offset.QuadPart = This->locked_bytes[i]; + StorageImpl_UnlockRegion(This, offset, cb, LOCK_ONLYONCE); + } + } + + if (This->lockBytes) + ILockBytes_Release(This->lockBytes); + HeapFree(GetProcessHeap(), 0, This); +} + + +static const StorageBaseImplVtbl StorageImpl_BaseVtbl = +{ + StorageImpl_Destroy, + StorageImpl_Invalidate, + StorageImpl_Flush, + StorageImpl_GetFilename, + StorageImpl_CreateDirEntry, + StorageImpl_BaseWriteDirEntry, + StorageImpl_BaseReadDirEntry, + StorageImpl_DestroyDirEntry, + StorageImpl_StreamReadAt, + StorageImpl_StreamWriteAt, + StorageImpl_StreamSetSize, + StorageImpl_StreamLink, + StorageImpl_GetTransactionSig, + StorageImpl_SetTransactionSig, + StorageImpl_LockTransaction, + StorageImpl_UnlockTransaction +}; + + +/* + * Virtual function table for the IStorageBaseImpl class. + */ +static const IStorageVtbl StorageImpl_Vtbl = +{ + StorageBaseImpl_QueryInterface, + StorageBaseImpl_AddRef, + StorageBaseImpl_Release, + StorageBaseImpl_CreateStream, + StorageBaseImpl_OpenStream, + StorageBaseImpl_CreateStorage, + StorageBaseImpl_OpenStorage, + StorageBaseImpl_CopyTo, + StorageBaseImpl_MoveElementTo, + StorageBaseImpl_Commit, + StorageBaseImpl_Revert, + StorageBaseImpl_EnumElements, + StorageBaseImpl_DestroyElement, + StorageBaseImpl_RenameElement, + StorageBaseImpl_SetElementTimes, + StorageBaseImpl_SetClass, + StorageBaseImpl_SetStateBits, + StorageBaseImpl_Stat +}; + +static HRESULT StorageImpl_Construct( + HANDLE hFile, + LPCOLESTR pwcsName, + ILockBytes* pLkbyt, + DWORD openFlags, + BOOL fileBased, + BOOL create, + ULONG sector_size, + StorageImpl** result) +{ + StorageImpl* This; + HRESULT hr = S_OK; + STATSTG stat; + + if ( FAILED( validateSTGM(openFlags) )) + return STG_E_INVALIDFLAG; + + This = HeapAlloc(GetProcessHeap(), 0, sizeof(StorageImpl)); + if (!This) + return E_OUTOFMEMORY; + + memset(This, 0, sizeof(StorageImpl)); + + list_init(&This->base.strmHead); + + list_init(&This->base.storageHead); + + This->base.IStorage_iface.lpVtbl = &StorageImpl_Vtbl; + This->base.IPropertySetStorage_iface.lpVtbl = &IPropertySetStorage_Vtbl; + This->base.IDirectWriterLock_iface.lpVtbl = &DirectWriterLockVtbl; + This->base.baseVtbl = &StorageImpl_BaseVtbl; + This->base.openFlags = (openFlags & ~STGM_CREATE); + This->base.ref = 1; + This->base.create = create; + + if (openFlags == (STGM_DIRECT_SWMR|STGM_READWRITE|STGM_SHARE_DENY_WRITE)) + This->base.lockingrole = SWMR_Writer; + else if (openFlags == (STGM_DIRECT_SWMR|STGM_READ|STGM_SHARE_DENY_NONE)) + This->base.lockingrole = SWMR_Reader; + else + This->base.lockingrole = SWMR_None; + + This->base.reverted = FALSE; + + /* + * Initialize the big block cache. + */ + This->bigBlockSize = sector_size; + This->smallBlockSize = DEF_SMALL_BLOCK_SIZE; + if (hFile) + hr = FileLockBytesImpl_Construct(hFile, openFlags, pwcsName, &This->lockBytes); + else + { + This->lockBytes = pLkbyt; + ILockBytes_AddRef(pLkbyt); + } + + if (SUCCEEDED(hr)) + hr = ILockBytes_Stat(This->lockBytes, &stat, STATFLAG_NONAME); + + if (SUCCEEDED(hr)) + { + This->locks_supported = stat.grfLocksSupported; + if (!hFile) + /* Don't try to use wine-internal locking flag with custom ILockBytes */ + This->locks_supported &= ~WINE_LOCK_READ; + + hr = StorageImpl_GrabLocks(This, openFlags); + } + + if (SUCCEEDED(hr)) + hr = StorageImpl_Refresh(This, TRUE, create); + + if (FAILED(hr)) + { + IStorage_Release(&This->base.IStorage_iface); + *result = NULL; + } + else + { + StorageImpl_Flush(&This->base); + *result = This; + } + + return hr; +} + + +/************************************************************************ + * StorageInternalImpl implementation + ***********************************************************************/ + +static void StorageInternalImpl_Invalidate( StorageBaseImpl *base ) +{ + StorageInternalImpl* This = (StorageInternalImpl*) base; + + if (!This->base.reverted) + { + TRACE("Storage invalidated (stg=%p)\n", This); + + This->base.reverted = TRUE; + + This->parentStorage = NULL; + + StorageBaseImpl_DeleteAll(&This->base); + + list_remove(&This->ParentListEntry); + } +} + +static void StorageInternalImpl_Destroy( StorageBaseImpl *iface) +{ + StorageInternalImpl* This = (StorageInternalImpl*) iface; + + StorageInternalImpl_Invalidate(&This->base); + + HeapFree(GetProcessHeap(), 0, This); +} + +static HRESULT StorageInternalImpl_Flush(StorageBaseImpl* iface) +{ + StorageInternalImpl* This = (StorageInternalImpl*) iface; + + return StorageBaseImpl_Flush(This->parentStorage); +} + +static HRESULT StorageInternalImpl_GetFilename(StorageBaseImpl* iface, LPWSTR *result) +{ + StorageInternalImpl* This = (StorageInternalImpl*) iface; + + return StorageBaseImpl_GetFilename(This->parentStorage, result); +} + +static HRESULT StorageInternalImpl_CreateDirEntry(StorageBaseImpl *base, + const DirEntry *newData, DirRef *index) +{ + StorageInternalImpl* This = (StorageInternalImpl*) base; + + return StorageBaseImpl_CreateDirEntry(This->parentStorage, + newData, index); +} + +static HRESULT StorageInternalImpl_WriteDirEntry(StorageBaseImpl *base, + DirRef index, const DirEntry *data) +{ + StorageInternalImpl* This = (StorageInternalImpl*) base; + + return StorageBaseImpl_WriteDirEntry(This->parentStorage, + index, data); +} + +static HRESULT StorageInternalImpl_ReadDirEntry(StorageBaseImpl *base, + DirRef index, DirEntry *data) +{ + StorageInternalImpl* This = (StorageInternalImpl*) base; + + return StorageBaseImpl_ReadDirEntry(This->parentStorage, + index, data); +} + +static HRESULT StorageInternalImpl_DestroyDirEntry(StorageBaseImpl *base, + DirRef index) +{ + StorageInternalImpl* This = (StorageInternalImpl*) base; + + return StorageBaseImpl_DestroyDirEntry(This->parentStorage, + index); +} + +static HRESULT StorageInternalImpl_StreamReadAt(StorageBaseImpl *base, + DirRef index, ULARGE_INTEGER offset, ULONG size, void *buffer, ULONG *bytesRead) +{ + StorageInternalImpl* This = (StorageInternalImpl*) base; + + return StorageBaseImpl_StreamReadAt(This->parentStorage, + index, offset, size, buffer, bytesRead); +} + +static HRESULT StorageInternalImpl_StreamWriteAt(StorageBaseImpl *base, + DirRef index, ULARGE_INTEGER offset, ULONG size, const void *buffer, ULONG *bytesWritten) +{ + StorageInternalImpl* This = (StorageInternalImpl*) base; + + return StorageBaseImpl_StreamWriteAt(This->parentStorage, + index, offset, size, buffer, bytesWritten); +} + +static HRESULT StorageInternalImpl_StreamSetSize(StorageBaseImpl *base, + DirRef index, ULARGE_INTEGER newsize) +{ + StorageInternalImpl* This = (StorageInternalImpl*) base; + + return StorageBaseImpl_StreamSetSize(This->parentStorage, + index, newsize); +} + +static HRESULT StorageInternalImpl_StreamLink(StorageBaseImpl *base, + DirRef dst, DirRef src) +{ + StorageInternalImpl* This = (StorageInternalImpl*) base; + + return StorageBaseImpl_StreamLink(This->parentStorage, + dst, src); +} + +static HRESULT StorageInternalImpl_GetTransactionSig(StorageBaseImpl *base, + ULONG* result, BOOL refresh) +{ + return E_NOTIMPL; +} + +static HRESULT StorageInternalImpl_SetTransactionSig(StorageBaseImpl *base, + ULONG value) +{ + return E_NOTIMPL; +} + +static HRESULT StorageInternalImpl_LockTransaction(StorageBaseImpl *base, BOOL write) +{ + return E_NOTIMPL; +} + +static HRESULT StorageInternalImpl_UnlockTransaction(StorageBaseImpl *base, BOOL write) +{ + return E_NOTIMPL; +} + +/****************************************************************************** +** +** StorageInternalImpl_Commit +** +*/ +static HRESULT WINAPI StorageInternalImpl_Commit( + IStorage* iface, + DWORD grfCommitFlags) /* [in] */ +{ + StorageBaseImpl* This = impl_from_IStorage(iface); + TRACE("%p, %#lx.\n", iface, grfCommitFlags); + return StorageBaseImpl_Flush(This); +} + +/****************************************************************************** +** +** StorageInternalImpl_Revert +** +*/ +static HRESULT WINAPI StorageInternalImpl_Revert( + IStorage* iface) +{ + FIXME("(%p): stub\n", iface); + return S_OK; +} + +/* + * Virtual function table for the StorageInternalImpl class. + */ +static const IStorageVtbl StorageInternalImpl_Vtbl = +{ + StorageBaseImpl_QueryInterface, + StorageBaseImpl_AddRef, + StorageBaseImpl_Release, + StorageBaseImpl_CreateStream, + StorageBaseImpl_OpenStream, + StorageBaseImpl_CreateStorage, + StorageBaseImpl_OpenStorage, + StorageBaseImpl_CopyTo, + StorageBaseImpl_MoveElementTo, + StorageInternalImpl_Commit, + StorageInternalImpl_Revert, + StorageBaseImpl_EnumElements, + StorageBaseImpl_DestroyElement, + StorageBaseImpl_RenameElement, + StorageBaseImpl_SetElementTimes, + StorageBaseImpl_SetClass, + StorageBaseImpl_SetStateBits, + StorageBaseImpl_Stat +}; + +static const StorageBaseImplVtbl StorageInternalImpl_BaseVtbl = +{ + StorageInternalImpl_Destroy, + StorageInternalImpl_Invalidate, + StorageInternalImpl_Flush, + StorageInternalImpl_GetFilename, + StorageInternalImpl_CreateDirEntry, + StorageInternalImpl_WriteDirEntry, + StorageInternalImpl_ReadDirEntry, + StorageInternalImpl_DestroyDirEntry, + StorageInternalImpl_StreamReadAt, + StorageInternalImpl_StreamWriteAt, + StorageInternalImpl_StreamSetSize, + StorageInternalImpl_StreamLink, + StorageInternalImpl_GetTransactionSig, + StorageInternalImpl_SetTransactionSig, + StorageInternalImpl_LockTransaction, + StorageInternalImpl_UnlockTransaction +}; + +static StorageInternalImpl* StorageInternalImpl_Construct( + StorageBaseImpl* parentStorage, + DWORD openFlags, + DirRef storageDirEntry) +{ + StorageInternalImpl* newStorage; + + newStorage = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(StorageInternalImpl)); + + if (newStorage!=0) + { + list_init(&newStorage->base.strmHead); + + list_init(&newStorage->base.storageHead); + + /* + * Initialize the virtual function table. + */ + newStorage->base.IStorage_iface.lpVtbl = &StorageInternalImpl_Vtbl; + newStorage->base.IPropertySetStorage_iface.lpVtbl = &IPropertySetStorage_Vtbl; + newStorage->base.baseVtbl = &StorageInternalImpl_BaseVtbl; + newStorage->base.openFlags = (openFlags & ~STGM_CREATE); + + newStorage->base.reverted = FALSE; + + newStorage->base.ref = 1; + + newStorage->parentStorage = parentStorage; + + /* + * Keep a reference to the directory entry of this storage + */ + newStorage->base.storageDirEntry = storageDirEntry; + + newStorage->base.create = FALSE; + + return newStorage; + } + + return 0; +} + + +/************************************************************************ + * TransactedSnapshotImpl implementation + ***********************************************************************/ + +static DirRef TransactedSnapshotImpl_FindFreeEntry(TransactedSnapshotImpl *This) +{ + DirRef result=This->firstFreeEntry; + + while (result < This->entries_size && This->entries[result].inuse) + result++; + + if (result == This->entries_size) + { + ULONG new_size = This->entries_size * 2; + TransactedDirEntry *new_entries; + + new_entries = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(TransactedDirEntry) * new_size); + if (!new_entries) return DIRENTRY_NULL; + + memcpy(new_entries, This->entries, sizeof(TransactedDirEntry) * This->entries_size); + HeapFree(GetProcessHeap(), 0, This->entries); + + This->entries = new_entries; + This->entries_size = new_size; + } + + This->entries[result].inuse = TRUE; + + This->firstFreeEntry = result+1; + + return result; +} + +static DirRef TransactedSnapshotImpl_CreateStubEntry( + TransactedSnapshotImpl *This, DirRef parentEntryRef) +{ + DirRef stubEntryRef; + TransactedDirEntry *entry; + + stubEntryRef = TransactedSnapshotImpl_FindFreeEntry(This); + + if (stubEntryRef != DIRENTRY_NULL) + { + entry = &This->entries[stubEntryRef]; + + entry->newTransactedParentEntry = entry->transactedParentEntry = parentEntryRef; + + entry->read = FALSE; + } + + return stubEntryRef; +} + +static HRESULT TransactedSnapshotImpl_EnsureReadEntry( + TransactedSnapshotImpl *This, DirRef entry) +{ + HRESULT hr=S_OK; + DirEntry data; + + if (!This->entries[entry].read) + { + hr = StorageBaseImpl_ReadDirEntry(This->transactedParent, + This->entries[entry].transactedParentEntry, + &data); + + if (SUCCEEDED(hr) && data.leftChild != DIRENTRY_NULL) + { + data.leftChild = TransactedSnapshotImpl_CreateStubEntry(This, data.leftChild); + + if (data.leftChild == DIRENTRY_NULL) + hr = E_OUTOFMEMORY; + } + + if (SUCCEEDED(hr) && data.rightChild != DIRENTRY_NULL) + { + data.rightChild = TransactedSnapshotImpl_CreateStubEntry(This, data.rightChild); + + if (data.rightChild == DIRENTRY_NULL) + hr = E_OUTOFMEMORY; + } + + if (SUCCEEDED(hr) && data.dirRootEntry != DIRENTRY_NULL) + { + data.dirRootEntry = TransactedSnapshotImpl_CreateStubEntry(This, data.dirRootEntry); + + if (data.dirRootEntry == DIRENTRY_NULL) + hr = E_OUTOFMEMORY; + } + + if (SUCCEEDED(hr)) + { + memcpy(&This->entries[entry].data, &data, sizeof(DirEntry)); + This->entries[entry].read = TRUE; + } + } + + return hr; +} + +static HRESULT TransactedSnapshotImpl_MakeStreamDirty( + TransactedSnapshotImpl *This, DirRef entry) +{ + HRESULT hr = S_OK; + + if (!This->entries[entry].stream_dirty) + { + DirEntry new_entrydata; + + memset(&new_entrydata, 0, sizeof(DirEntry)); + new_entrydata.name[0] = 'S'; + new_entrydata.sizeOfNameString = 1; + new_entrydata.stgType = STGTY_STREAM; + new_entrydata.startingBlock = BLOCK_END_OF_CHAIN; + new_entrydata.leftChild = DIRENTRY_NULL; + new_entrydata.rightChild = DIRENTRY_NULL; + new_entrydata.dirRootEntry = DIRENTRY_NULL; + + hr = StorageBaseImpl_CreateDirEntry(This->scratch, &new_entrydata, + &This->entries[entry].stream_entry); + + if (SUCCEEDED(hr) && This->entries[entry].transactedParentEntry != DIRENTRY_NULL) + { + hr = StorageBaseImpl_CopyStream( + This->scratch, This->entries[entry].stream_entry, + This->transactedParent, This->entries[entry].transactedParentEntry); + + if (FAILED(hr)) + StorageBaseImpl_DestroyDirEntry(This->scratch, This->entries[entry].stream_entry); + } + + if (SUCCEEDED(hr)) + This->entries[entry].stream_dirty = TRUE; + + if (This->entries[entry].transactedParentEntry != DIRENTRY_NULL) + { + /* Since this entry is modified, and we aren't using its stream data, we + * no longer care about the original entry. */ + DirRef delete_ref; + delete_ref = TransactedSnapshotImpl_CreateStubEntry(This, This->entries[entry].transactedParentEntry); + + if (delete_ref != DIRENTRY_NULL) + This->entries[delete_ref].deleted = TRUE; + + This->entries[entry].transactedParentEntry = This->entries[entry].newTransactedParentEntry = DIRENTRY_NULL; + } + } + + return hr; +} + +/* Find the first entry in a depth-first traversal. */ +static DirRef TransactedSnapshotImpl_FindFirstChild( + TransactedSnapshotImpl* This, DirRef parent) +{ + DirRef cursor, prev; + TransactedDirEntry *entry; + + cursor = parent; + entry = &This->entries[cursor]; + while (entry->read) + { + if (entry->data.leftChild != DIRENTRY_NULL) + { + prev = cursor; + cursor = entry->data.leftChild; + entry = &This->entries[cursor]; + entry->parent = prev; + } + else if (entry->data.rightChild != DIRENTRY_NULL) + { + prev = cursor; + cursor = entry->data.rightChild; + entry = &This->entries[cursor]; + entry->parent = prev; + } + else if (entry->data.dirRootEntry != DIRENTRY_NULL) + { + prev = cursor; + cursor = entry->data.dirRootEntry; + entry = &This->entries[cursor]; + entry->parent = prev; + } + else + break; + } + + return cursor; +} + +/* Find the next entry in a depth-first traversal. */ +static DirRef TransactedSnapshotImpl_FindNextChild( + TransactedSnapshotImpl* This, DirRef current) +{ + DirRef parent; + TransactedDirEntry *parent_entry; + + parent = This->entries[current].parent; + parent_entry = &This->entries[parent]; + + if (parent != DIRENTRY_NULL && parent_entry->data.dirRootEntry != current) + { + if (parent_entry->data.rightChild != current && parent_entry->data.rightChild != DIRENTRY_NULL) + { + This->entries[parent_entry->data.rightChild].parent = parent; + return TransactedSnapshotImpl_FindFirstChild(This, parent_entry->data.rightChild); + } + + if (parent_entry->data.dirRootEntry != DIRENTRY_NULL) + { + This->entries[parent_entry->data.dirRootEntry].parent = parent; + return TransactedSnapshotImpl_FindFirstChild(This, parent_entry->data.dirRootEntry); + } + } + + return parent; +} + +/* Return TRUE if we've made a copy of this entry for committing to the parent. */ +static inline BOOL TransactedSnapshotImpl_MadeCopy( + TransactedSnapshotImpl* This, DirRef entry) +{ + return entry != DIRENTRY_NULL && + This->entries[entry].newTransactedParentEntry != This->entries[entry].transactedParentEntry; +} + +/* Destroy the entries created by CopyTree. */ +static void TransactedSnapshotImpl_DestroyTemporaryCopy( + TransactedSnapshotImpl* This, DirRef stop) +{ + DirRef cursor; + TransactedDirEntry *entry; + ULARGE_INTEGER zero; + + zero.QuadPart = 0; + + if (!This->entries[This->base.storageDirEntry].read) + return; + + cursor = This->entries[This->base.storageDirEntry].data.dirRootEntry; + + if (cursor == DIRENTRY_NULL) + return; + + cursor = TransactedSnapshotImpl_FindFirstChild(This, cursor); + + while (cursor != DIRENTRY_NULL && cursor != stop) + { + if (TransactedSnapshotImpl_MadeCopy(This, cursor)) + { + entry = &This->entries[cursor]; + + if (entry->stream_dirty) + StorageBaseImpl_StreamSetSize(This->transactedParent, + entry->newTransactedParentEntry, zero); + + StorageBaseImpl_DestroyDirEntry(This->transactedParent, + entry->newTransactedParentEntry); + + entry->newTransactedParentEntry = entry->transactedParentEntry; + } + + cursor = TransactedSnapshotImpl_FindNextChild(This, cursor); + } +} + +/* Make a copy of our edited tree that we can use in the parent. */ +static HRESULT TransactedSnapshotImpl_CopyTree(TransactedSnapshotImpl* This) +{ + DirRef cursor; + TransactedDirEntry *entry; + HRESULT hr = S_OK; + + cursor = This->base.storageDirEntry; + entry = &This->entries[cursor]; + entry->parent = DIRENTRY_NULL; + entry->newTransactedParentEntry = entry->transactedParentEntry; + + if (entry->data.dirRootEntry == DIRENTRY_NULL) + return S_OK; + + This->entries[entry->data.dirRootEntry].parent = DIRENTRY_NULL; + + cursor = TransactedSnapshotImpl_FindFirstChild(This, entry->data.dirRootEntry); + entry = &This->entries[cursor]; + + while (cursor != DIRENTRY_NULL) + { + /* Make a copy of this entry in the transacted parent. */ + if (!entry->read || + (!entry->dirty && !entry->stream_dirty && + !TransactedSnapshotImpl_MadeCopy(This, entry->data.leftChild) && + !TransactedSnapshotImpl_MadeCopy(This, entry->data.rightChild) && + !TransactedSnapshotImpl_MadeCopy(This, entry->data.dirRootEntry))) + entry->newTransactedParentEntry = entry->transactedParentEntry; + else + { + DirEntry newData; + + memcpy(&newData, &entry->data, sizeof(DirEntry)); + + newData.size.QuadPart = 0; + newData.startingBlock = BLOCK_END_OF_CHAIN; + + if (newData.leftChild != DIRENTRY_NULL) + newData.leftChild = This->entries[newData.leftChild].newTransactedParentEntry; + + if (newData.rightChild != DIRENTRY_NULL) + newData.rightChild = This->entries[newData.rightChild].newTransactedParentEntry; + + if (newData.dirRootEntry != DIRENTRY_NULL) + newData.dirRootEntry = This->entries[newData.dirRootEntry].newTransactedParentEntry; + + hr = StorageBaseImpl_CreateDirEntry(This->transactedParent, &newData, + &entry->newTransactedParentEntry); + if (FAILED(hr)) + { + TransactedSnapshotImpl_DestroyTemporaryCopy(This, cursor); + return hr; + } + + if (entry->stream_dirty) + { + hr = StorageBaseImpl_CopyStream( + This->transactedParent, entry->newTransactedParentEntry, + This->scratch, entry->stream_entry); + } + else if (entry->data.size.QuadPart) + { + hr = StorageBaseImpl_StreamLink( + This->transactedParent, entry->newTransactedParentEntry, + entry->transactedParentEntry); + } + + if (FAILED(hr)) + { + cursor = TransactedSnapshotImpl_FindNextChild(This, cursor); + TransactedSnapshotImpl_DestroyTemporaryCopy(This, cursor); + return hr; + } + } + + cursor = TransactedSnapshotImpl_FindNextChild(This, cursor); + entry = &This->entries[cursor]; + } + + return hr; +} + +static HRESULT WINAPI TransactedSnapshotImpl_Commit( + IStorage* iface, + DWORD grfCommitFlags) /* [in] */ +{ + TransactedSnapshotImpl* This = (TransactedSnapshotImpl*)impl_from_IStorage(iface); + TransactedDirEntry *root_entry; + DirRef i, dir_root_ref; + DirEntry data; + ULARGE_INTEGER zero; + HRESULT hr; + ULONG transactionSig; + + zero.QuadPart = 0; + + TRACE("%p, %#lx.\n", iface, grfCommitFlags); + + /* Cannot commit a read-only transacted storage */ + if ( STGM_ACCESS_MODE( This->base.openFlags ) == STGM_READ ) + return STG_E_ACCESSDENIED; + + hr = StorageBaseImpl_LockTransaction(This->transactedParent, TRUE); + if (hr == E_NOTIMPL) hr = S_OK; + if (SUCCEEDED(hr)) + { + hr = StorageBaseImpl_GetTransactionSig(This->transactedParent, &transactionSig, TRUE); + if (SUCCEEDED(hr)) + { + if (transactionSig != This->lastTransactionSig) + { + ERR("file was externally modified\n"); + hr = STG_E_NOTCURRENT; + } + + if (SUCCEEDED(hr)) + { + This->lastTransactionSig = transactionSig+1; + hr = StorageBaseImpl_SetTransactionSig(This->transactedParent, This->lastTransactionSig); + } + } + else if (hr == E_NOTIMPL) + hr = S_OK; + + if (FAILED(hr)) goto end; + + /* To prevent data loss, we create the new structure in the file before we + * delete the old one, so that in case of errors the old data is intact. We + * shouldn't do this if STGC_OVERWRITE is set, but that flag should only be + * needed in the rare situation where we have just enough free disk space to + * overwrite the existing data. */ + + root_entry = &This->entries[This->base.storageDirEntry]; + + if (!root_entry->read) + goto end; + + hr = TransactedSnapshotImpl_CopyTree(This); + if (FAILED(hr)) goto end; + + if (root_entry->data.dirRootEntry == DIRENTRY_NULL) + dir_root_ref = DIRENTRY_NULL; + else + dir_root_ref = This->entries[root_entry->data.dirRootEntry].newTransactedParentEntry; + + hr = StorageBaseImpl_Flush(This->transactedParent); + + /* Update the storage to use the new data in one step. */ + if (SUCCEEDED(hr)) + hr = StorageBaseImpl_ReadDirEntry(This->transactedParent, + root_entry->transactedParentEntry, &data); + + if (SUCCEEDED(hr)) + { + data.dirRootEntry = dir_root_ref; + data.clsid = root_entry->data.clsid; + data.ctime = root_entry->data.ctime; + data.mtime = root_entry->data.mtime; + + hr = StorageBaseImpl_WriteDirEntry(This->transactedParent, + root_entry->transactedParentEntry, &data); + } + + /* Try to flush after updating the root storage, but if the flush fails, keep + * going, on the theory that it'll either succeed later or the subsequent + * writes will fail. */ + StorageBaseImpl_Flush(This->transactedParent); + + if (SUCCEEDED(hr)) + { + /* Destroy the old now-orphaned data. */ + for (i=0; i<This->entries_size; i++) + { + TransactedDirEntry *entry = &This->entries[i]; + if (entry->inuse) + { + if (entry->deleted) + { + StorageBaseImpl_StreamSetSize(This->transactedParent, + entry->transactedParentEntry, zero); + StorageBaseImpl_DestroyDirEntry(This->transactedParent, + entry->transactedParentEntry); + memset(entry, 0, sizeof(TransactedDirEntry)); + This->firstFreeEntry = min(i, This->firstFreeEntry); + } + else if (entry->read && entry->transactedParentEntry != entry->newTransactedParentEntry) + { + if (entry->transactedParentEntry != DIRENTRY_NULL) + StorageBaseImpl_DestroyDirEntry(This->transactedParent, + entry->transactedParentEntry); + if (entry->stream_dirty) + { + StorageBaseImpl_StreamSetSize(This->scratch, entry->stream_entry, zero); + StorageBaseImpl_DestroyDirEntry(This->scratch, entry->stream_entry); + entry->stream_dirty = FALSE; + } + entry->dirty = FALSE; + entry->transactedParentEntry = entry->newTransactedParentEntry; + } + } + } + } + else + { + TransactedSnapshotImpl_DestroyTemporaryCopy(This, DIRENTRY_NULL); + } + + if (SUCCEEDED(hr)) + hr = StorageBaseImpl_Flush(This->transactedParent); +end: + StorageBaseImpl_UnlockTransaction(This->transactedParent, TRUE); + } + + TRACE("<-- %#lx\n", hr); + return hr; +} + +static HRESULT WINAPI TransactedSnapshotImpl_Revert( + IStorage* iface) +{ + TransactedSnapshotImpl* This = (TransactedSnapshotImpl*)impl_from_IStorage(iface); + ULARGE_INTEGER zero; + ULONG i; + + TRACE("(%p)\n", iface); + + /* Destroy the open objects. */ + StorageBaseImpl_DeleteAll(&This->base); + + /* Clear out the scratch file. */ + zero.QuadPart = 0; + for (i=0; i<This->entries_size; i++) + { + if (This->entries[i].stream_dirty) + { + StorageBaseImpl_StreamSetSize(This->scratch, This->entries[i].stream_entry, + zero); + + StorageBaseImpl_DestroyDirEntry(This->scratch, This->entries[i].stream_entry); + } + } + + memset(This->entries, 0, sizeof(TransactedDirEntry) * This->entries_size); + + This->firstFreeEntry = 0; + This->base.storageDirEntry = TransactedSnapshotImpl_CreateStubEntry(This, This->transactedParent->storageDirEntry); + + return S_OK; +} + +static void TransactedSnapshotImpl_Invalidate(StorageBaseImpl* This) +{ + if (!This->reverted) + { + TRACE("Storage invalidated (stg=%p)\n", This); + + This->reverted = TRUE; + + StorageBaseImpl_DeleteAll(This); + } +} + +static void TransactedSnapshotImpl_Destroy( StorageBaseImpl *iface) +{ + TransactedSnapshotImpl* This = (TransactedSnapshotImpl*) iface; + + IStorage_Revert(&This->base.IStorage_iface); + IStorage_Release(&This->transactedParent->IStorage_iface); + IStorage_Release(&This->scratch->IStorage_iface); + HeapFree(GetProcessHeap(), 0, This->entries); + HeapFree(GetProcessHeap(), 0, This); +} + +static HRESULT TransactedSnapshotImpl_Flush(StorageBaseImpl* iface) +{ + /* We only need to flush when committing. */ + return S_OK; +} + +static HRESULT TransactedSnapshotImpl_GetFilename(StorageBaseImpl* iface, LPWSTR *result) +{ + TransactedSnapshotImpl* This = (TransactedSnapshotImpl*) iface; + + return StorageBaseImpl_GetFilename(This->transactedParent, result); +} + +static HRESULT TransactedSnapshotImpl_CreateDirEntry(StorageBaseImpl *base, + const DirEntry *newData, DirRef *index) +{ + TransactedSnapshotImpl* This = (TransactedSnapshotImpl*) base; + DirRef new_ref; + TransactedDirEntry *new_entry; + + new_ref = TransactedSnapshotImpl_FindFreeEntry(This); + if (new_ref == DIRENTRY_NULL) + return E_OUTOFMEMORY; + + new_entry = &This->entries[new_ref]; + + new_entry->newTransactedParentEntry = new_entry->transactedParentEntry = DIRENTRY_NULL; + new_entry->read = TRUE; + new_entry->dirty = TRUE; + memcpy(&new_entry->data, newData, sizeof(DirEntry)); + + *index = new_ref; + + TRACE("%s l=%lx r=%lx d=%lx <-- %lx\n", debugstr_w(newData->name), newData->leftChild, newData->rightChild, newData->dirRootEntry, *index); + + return S_OK; +} + +static HRESULT TransactedSnapshotImpl_WriteDirEntry(StorageBaseImpl *base, + DirRef index, const DirEntry *data) +{ + TransactedSnapshotImpl* This = (TransactedSnapshotImpl*) base; + HRESULT hr; + + TRACE("%lx %s l=%lx r=%lx d=%lx\n", index, debugstr_w(data->name), data->leftChild, data->rightChild, data->dirRootEntry); + + hr = TransactedSnapshotImpl_EnsureReadEntry(This, index); + if (FAILED(hr)) + { + TRACE("<-- %#lx\n", hr); + return hr; + } + + memcpy(&This->entries[index].data, data, sizeof(DirEntry)); + + if (index != This->base.storageDirEntry) + { + This->entries[index].dirty = TRUE; + + if (data->size.QuadPart == 0 && + This->entries[index].transactedParentEntry != DIRENTRY_NULL) + { + /* Since this entry is modified, and we aren't using its stream data, we + * no longer care about the original entry. */ + DirRef delete_ref; + delete_ref = TransactedSnapshotImpl_CreateStubEntry(This, This->entries[index].transactedParentEntry); + + if (delete_ref != DIRENTRY_NULL) + This->entries[delete_ref].deleted = TRUE; + + This->entries[index].transactedParentEntry = This->entries[index].newTransactedParentEntry = DIRENTRY_NULL; + } + } + TRACE("<-- S_OK\n"); + return S_OK; +} + +static HRESULT TransactedSnapshotImpl_ReadDirEntry(StorageBaseImpl *base, + DirRef index, DirEntry *data) +{ + TransactedSnapshotImpl* This = (TransactedSnapshotImpl*) base; + HRESULT hr; + + hr = TransactedSnapshotImpl_EnsureReadEntry(This, index); + if (FAILED(hr)) + { + TRACE("<-- %#lx\n", hr); + return hr; + } + + memcpy(data, &This->entries[index].data, sizeof(DirEntry)); + + TRACE("%lx %s l=%lx r=%lx d=%lx\n", index, debugstr_w(data->name), data->leftChild, data->rightChild, data->dirRootEntry); + + return S_OK; +} + +static HRESULT TransactedSnapshotImpl_DestroyDirEntry(StorageBaseImpl *base, + DirRef index) +{ + TransactedSnapshotImpl* This = (TransactedSnapshotImpl*) base; + + if (This->entries[index].transactedParentEntry == DIRENTRY_NULL || + This->entries[index].data.size.QuadPart != 0) + { + /* If we deleted this entry while it has stream data. We must have left the + * data because some other entry is using it, and we need to leave the + * original entry alone. */ + memset(&This->entries[index], 0, sizeof(TransactedDirEntry)); + This->firstFreeEntry = min(index, This->firstFreeEntry); + } + else + { + This->entries[index].deleted = TRUE; + } + + return S_OK; +} + +static HRESULT TransactedSnapshotImpl_StreamReadAt(StorageBaseImpl *base, + DirRef index, ULARGE_INTEGER offset, ULONG size, void *buffer, ULONG *bytesRead) +{ + TransactedSnapshotImpl* This = (TransactedSnapshotImpl*) base; + + if (This->entries[index].stream_dirty) + { + return StorageBaseImpl_StreamReadAt(This->scratch, + This->entries[index].stream_entry, offset, size, buffer, bytesRead); + } + else if (This->entries[index].transactedParentEntry == DIRENTRY_NULL) + { + /* This stream doesn't live in the parent, and we haven't allocated storage + * for it yet */ + *bytesRead = 0; + return S_OK; + } + else + { + return StorageBaseImpl_StreamReadAt(This->transactedParent, + This->entries[index].transactedParentEntry, offset, size, buffer, bytesRead); + } +} + +static HRESULT TransactedSnapshotImpl_StreamWriteAt(StorageBaseImpl *base, + DirRef index, ULARGE_INTEGER offset, ULONG size, const void *buffer, ULONG *bytesWritten) +{ + TransactedSnapshotImpl* This = (TransactedSnapshotImpl*) base; + HRESULT hr; + + hr = TransactedSnapshotImpl_EnsureReadEntry(This, index); + if (FAILED(hr)) + { + TRACE("<-- %#lx\n", hr); + return hr; + } + + hr = TransactedSnapshotImpl_MakeStreamDirty(This, index); + if (FAILED(hr)) + { + TRACE("<-- %#lx\n", hr); + return hr; + } + + hr = StorageBaseImpl_StreamWriteAt(This->scratch, + This->entries[index].stream_entry, offset, size, buffer, bytesWritten); + + if (SUCCEEDED(hr) && size != 0) + This->entries[index].data.size.QuadPart = max( + This->entries[index].data.size.QuadPart, + offset.QuadPart + size); + + TRACE("<-- %#lx\n", hr); + return hr; +} + +static HRESULT TransactedSnapshotImpl_StreamSetSize(StorageBaseImpl *base, + DirRef index, ULARGE_INTEGER newsize) +{ + TransactedSnapshotImpl* This = (TransactedSnapshotImpl*) base; + HRESULT hr; + + hr = TransactedSnapshotImpl_EnsureReadEntry(This, index); + if (FAILED(hr)) + { + TRACE("<-- %#lx\n", hr); + return hr; + } + + if (This->entries[index].data.size.QuadPart == newsize.QuadPart) + return S_OK; + + if (newsize.QuadPart == 0) + { + /* Destroy any parent references or entries in the scratch file. */ + if (This->entries[index].stream_dirty) + { + ULARGE_INTEGER zero; + zero.QuadPart = 0; + StorageBaseImpl_StreamSetSize(This->scratch, + This->entries[index].stream_entry, zero); + StorageBaseImpl_DestroyDirEntry(This->scratch, + This->entries[index].stream_entry); + This->entries[index].stream_dirty = FALSE; + } + else if (This->entries[index].transactedParentEntry != DIRENTRY_NULL) + { + DirRef delete_ref; + delete_ref = TransactedSnapshotImpl_CreateStubEntry(This, This->entries[index].transactedParentEntry); + + if (delete_ref != DIRENTRY_NULL) + This->entries[delete_ref].deleted = TRUE; + + This->entries[index].transactedParentEntry = This->entries[index].newTransactedParentEntry = DIRENTRY_NULL; + } + } + else + { + hr = TransactedSnapshotImpl_MakeStreamDirty(This, index); + if (FAILED(hr)) return hr; + + hr = StorageBaseImpl_StreamSetSize(This->scratch, + This->entries[index].stream_entry, newsize); + } + + if (SUCCEEDED(hr)) + This->entries[index].data.size = newsize; + + TRACE("<-- %#lx\n", hr); + return hr; +} + +static HRESULT TransactedSnapshotImpl_StreamLink(StorageBaseImpl *base, + DirRef dst, DirRef src) +{ + TransactedSnapshotImpl* This = (TransactedSnapshotImpl*) base; + HRESULT hr; + TransactedDirEntry *dst_entry, *src_entry; + + hr = TransactedSnapshotImpl_EnsureReadEntry(This, src); + if (FAILED(hr)) + { + TRACE("<-- %#lx\n", hr); + return hr; + } + + hr = TransactedSnapshotImpl_EnsureReadEntry(This, dst); + if (FAILED(hr)) + { + TRACE("<-- %#lx\n", hr); + return hr; + } + + dst_entry = &This->entries[dst]; + src_entry = &This->entries[src]; + + dst_entry->stream_dirty = src_entry->stream_dirty; + dst_entry->stream_entry = src_entry->stream_entry; + dst_entry->transactedParentEntry = src_entry->transactedParentEntry; + dst_entry->newTransactedParentEntry = src_entry->newTransactedParentEntry; + dst_entry->data.size = src_entry->data.size; + + return S_OK; +} + +static HRESULT TransactedSnapshotImpl_GetTransactionSig(StorageBaseImpl *base, + ULONG* result, BOOL refresh) +{ + return E_NOTIMPL; +} + +static HRESULT TransactedSnapshotImpl_SetTransactionSig(StorageBaseImpl *base, + ULONG value) +{ + return E_NOTIMPL; +} + +static HRESULT TransactedSnapshotImpl_LockTransaction(StorageBaseImpl *base, BOOL write) +{ + return E_NOTIMPL; +} + +static HRESULT TransactedSnapshotImpl_UnlockTransaction(StorageBaseImpl *base, BOOL write) +{ + return E_NOTIMPL; +} + +static const IStorageVtbl TransactedSnapshotImpl_Vtbl = +{ + StorageBaseImpl_QueryInterface, + StorageBaseImpl_AddRef, + StorageBaseImpl_Release, + StorageBaseImpl_CreateStream, + StorageBaseImpl_OpenStream, + StorageBaseImpl_CreateStorage, + StorageBaseImpl_OpenStorage, + StorageBaseImpl_CopyTo, + StorageBaseImpl_MoveElementTo, + TransactedSnapshotImpl_Commit, + TransactedSnapshotImpl_Revert, + StorageBaseImpl_EnumElements, + StorageBaseImpl_DestroyElement, + StorageBaseImpl_RenameElement, + StorageBaseImpl_SetElementTimes, + StorageBaseImpl_SetClass, + StorageBaseImpl_SetStateBits, + StorageBaseImpl_Stat +}; + +static const StorageBaseImplVtbl TransactedSnapshotImpl_BaseVtbl = +{ + TransactedSnapshotImpl_Destroy, + TransactedSnapshotImpl_Invalidate, + TransactedSnapshotImpl_Flush, + TransactedSnapshotImpl_GetFilename, + TransactedSnapshotImpl_CreateDirEntry, + TransactedSnapshotImpl_WriteDirEntry, + TransactedSnapshotImpl_ReadDirEntry, + TransactedSnapshotImpl_DestroyDirEntry, + TransactedSnapshotImpl_StreamReadAt, + TransactedSnapshotImpl_StreamWriteAt, + TransactedSnapshotImpl_StreamSetSize, + TransactedSnapshotImpl_StreamLink, + TransactedSnapshotImpl_GetTransactionSig, + TransactedSnapshotImpl_SetTransactionSig, + TransactedSnapshotImpl_LockTransaction, + TransactedSnapshotImpl_UnlockTransaction +}; + +static HRESULT TransactedSnapshotImpl_Construct(StorageBaseImpl *parentStorage, + TransactedSnapshotImpl** result) +{ + HRESULT hr; + + *result = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(TransactedSnapshotImpl)); + if (*result) + { + IStorage *scratch; + + (*result)->base.IStorage_iface.lpVtbl = &TransactedSnapshotImpl_Vtbl; + + /* This is OK because the property set storage functions use the IStorage functions. */ + (*result)->base.IPropertySetStorage_iface.lpVtbl = parentStorage->IPropertySetStorage_iface.lpVtbl; + (*result)->base.baseVtbl = &TransactedSnapshotImpl_BaseVtbl; + + list_init(&(*result)->base.strmHead); + + list_init(&(*result)->base.storageHead); + + (*result)->base.ref = 1; + + (*result)->base.openFlags = parentStorage->openFlags; + + /* This cannot fail, except with E_NOTIMPL in which case we don't care */ + StorageBaseImpl_GetTransactionSig(parentStorage, &(*result)->lastTransactionSig, FALSE); + + /* Create a new temporary storage to act as the scratch file. */ + hr = StgCreateDocfile(NULL, STGM_READWRITE|STGM_SHARE_EXCLUSIVE|STGM_CREATE|STGM_DELETEONRELEASE, + 0, &scratch); + (*result)->scratch = impl_from_IStorage(scratch); + + if (SUCCEEDED(hr)) + { + ULONG num_entries = 20; + + (*result)->entries = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(TransactedDirEntry) * num_entries); + (*result)->entries_size = num_entries; + (*result)->firstFreeEntry = 0; + + if ((*result)->entries) + { + /* parentStorage already has 1 reference, which we take over here. */ + (*result)->transactedParent = parentStorage; + + parentStorage->transactedChild = &(*result)->base; + + (*result)->base.storageDirEntry = TransactedSnapshotImpl_CreateStubEntry(*result, parentStorage->storageDirEntry); + } + else + { + IStorage_Release(scratch); + + hr = E_OUTOFMEMORY; + } + } + + if (FAILED(hr)) HeapFree(GetProcessHeap(), 0, *result); + + return hr; + } + else + return E_OUTOFMEMORY; +} + + +/************************************************************************ + * TransactedSharedImpl implementation + ***********************************************************************/ + +static void TransactedSharedImpl_Invalidate(StorageBaseImpl* This) +{ + if (!This->reverted) + { + TRACE("Storage invalidated (stg=%p)\n", This); + + This->reverted = TRUE; + + StorageBaseImpl_DeleteAll(This); + } +} + +static void TransactedSharedImpl_Destroy( StorageBaseImpl *iface) +{ + TransactedSharedImpl* This = (TransactedSharedImpl*) iface; + + TransactedSharedImpl_Invalidate(&This->base); + IStorage_Release(&This->transactedParent->IStorage_iface); + IStorage_Release(&This->scratch->base.IStorage_iface); + HeapFree(GetProcessHeap(), 0, This); +} + +static HRESULT TransactedSharedImpl_Flush(StorageBaseImpl* iface) +{ + /* We only need to flush when committing. */ + return S_OK; +} + +static HRESULT TransactedSharedImpl_GetFilename(StorageBaseImpl* iface, LPWSTR *result) +{ + TransactedSharedImpl* This = (TransactedSharedImpl*) iface; + + return StorageBaseImpl_GetFilename(This->transactedParent, result); +} + +static HRESULT TransactedSharedImpl_CreateDirEntry(StorageBaseImpl *base, + const DirEntry *newData, DirRef *index) +{ + TransactedSharedImpl* This = (TransactedSharedImpl*) base; + + return StorageBaseImpl_CreateDirEntry(&This->scratch->base, + newData, index); +} + +static HRESULT TransactedSharedImpl_WriteDirEntry(StorageBaseImpl *base, + DirRef index, const DirEntry *data) +{ + TransactedSharedImpl* This = (TransactedSharedImpl*) base; + + return StorageBaseImpl_WriteDirEntry(&This->scratch->base, + index, data); +} + +static HRESULT TransactedSharedImpl_ReadDirEntry(StorageBaseImpl *base, + DirRef index, DirEntry *data) +{ + TransactedSharedImpl* This = (TransactedSharedImpl*) base; + + return StorageBaseImpl_ReadDirEntry(&This->scratch->base, + index, data); +} + +static HRESULT TransactedSharedImpl_DestroyDirEntry(StorageBaseImpl *base, + DirRef index) +{ + TransactedSharedImpl* This = (TransactedSharedImpl*) base; + + return StorageBaseImpl_DestroyDirEntry(&This->scratch->base, + index); +} + +static HRESULT TransactedSharedImpl_StreamReadAt(StorageBaseImpl *base, + DirRef index, ULARGE_INTEGER offset, ULONG size, void *buffer, ULONG *bytesRead) +{ + TransactedSharedImpl* This = (TransactedSharedImpl*) base; + + return StorageBaseImpl_StreamReadAt(&This->scratch->base, + index, offset, size, buffer, bytesRead); +} + +static HRESULT TransactedSharedImpl_StreamWriteAt(StorageBaseImpl *base, + DirRef index, ULARGE_INTEGER offset, ULONG size, const void *buffer, ULONG *bytesWritten) +{ + TransactedSharedImpl* This = (TransactedSharedImpl*) base; + + return StorageBaseImpl_StreamWriteAt(&This->scratch->base, + index, offset, size, buffer, bytesWritten); +} + +static HRESULT TransactedSharedImpl_StreamSetSize(StorageBaseImpl *base, + DirRef index, ULARGE_INTEGER newsize) +{ + TransactedSharedImpl* This = (TransactedSharedImpl*) base; + + return StorageBaseImpl_StreamSetSize(&This->scratch->base, + index, newsize); +} + +static HRESULT TransactedSharedImpl_StreamLink(StorageBaseImpl *base, + DirRef dst, DirRef src) +{ + TransactedSharedImpl* This = (TransactedSharedImpl*) base; + + return StorageBaseImpl_StreamLink(&This->scratch->base, + dst, src); +} + +static HRESULT TransactedSharedImpl_GetTransactionSig(StorageBaseImpl *base, + ULONG* result, BOOL refresh) +{ + return E_NOTIMPL; +} + +static HRESULT TransactedSharedImpl_SetTransactionSig(StorageBaseImpl *base, + ULONG value) +{ + return E_NOTIMPL; +} + +static HRESULT TransactedSharedImpl_LockTransaction(StorageBaseImpl *base, BOOL write) +{ + return E_NOTIMPL; +} + +static HRESULT TransactedSharedImpl_UnlockTransaction(StorageBaseImpl *base, BOOL write) +{ + return E_NOTIMPL; +} + +static HRESULT WINAPI TransactedSharedImpl_Commit( + IStorage* iface, + DWORD grfCommitFlags) /* [in] */ +{ + TransactedSharedImpl* This = (TransactedSharedImpl*)impl_from_IStorage(iface); + DirRef new_storage_ref, prev_storage_ref; + DirEntry src_data, dst_data; + HRESULT hr; + ULONG transactionSig; + + TRACE("%p, %#lx\n", iface, grfCommitFlags); + + /* Cannot commit a read-only transacted storage */ + if ( STGM_ACCESS_MODE( This->base.openFlags ) == STGM_READ ) + return STG_E_ACCESSDENIED; + + hr = StorageBaseImpl_LockTransaction(This->transactedParent, TRUE); + if (hr == E_NOTIMPL) hr = S_OK; + if (SUCCEEDED(hr)) + { + hr = StorageBaseImpl_GetTransactionSig(This->transactedParent, &transactionSig, TRUE); + if (SUCCEEDED(hr)) + { + if ((grfCommitFlags & STGC_ONLYIFCURRENT) && transactionSig != This->lastTransactionSig) + hr = STG_E_NOTCURRENT; + + if (SUCCEEDED(hr)) + hr = StorageBaseImpl_SetTransactionSig(This->transactedParent, transactionSig+1); + } + else if (hr == E_NOTIMPL) + hr = S_OK; + + if (SUCCEEDED(hr)) + hr = StorageBaseImpl_ReadDirEntry(&This->scratch->base, This->scratch->base.storageDirEntry, &src_data); + + /* FIXME: If we're current, we should be able to copy only the changes in scratch. */ + if (SUCCEEDED(hr)) + hr = StorageBaseImpl_DupStorageTree(This->transactedParent, &new_storage_ref, &This->scratch->base, src_data.dirRootEntry); + + if (SUCCEEDED(hr)) + hr = StorageBaseImpl_Flush(This->transactedParent); + + if (SUCCEEDED(hr)) + hr = StorageBaseImpl_ReadDirEntry(This->transactedParent, This->transactedParent->storageDirEntry, &dst_data); + + if (SUCCEEDED(hr)) + { + prev_storage_ref = dst_data.dirRootEntry; + dst_data.dirRootEntry = new_storage_ref; + dst_data.clsid = src_data.clsid; + dst_data.ctime = src_data.ctime; + dst_data.mtime = src_data.mtime; + hr = StorageBaseImpl_WriteDirEntry(This->transactedParent, This->transactedParent->storageDirEntry, &dst_data); + } + + if (SUCCEEDED(hr)) + { + /* Try to flush after updating the root storage, but if the flush fails, keep + * going, on the theory that it'll either succeed later or the subsequent + * writes will fail. */ + StorageBaseImpl_Flush(This->transactedParent); + + hr = StorageBaseImpl_DeleteStorageTree(This->transactedParent, prev_storage_ref, TRUE); + } + + if (SUCCEEDED(hr)) + hr = StorageBaseImpl_Flush(This->transactedParent); + + StorageBaseImpl_UnlockTransaction(This->transactedParent, TRUE); + + if (SUCCEEDED(hr)) + hr = IStorage_Commit(&This->scratch->base.IStorage_iface, STGC_DEFAULT); + + if (SUCCEEDED(hr)) + { + This->lastTransactionSig = transactionSig+1; + } + } + TRACE("<-- %#lx\n", hr); + return hr; +} + +static HRESULT WINAPI TransactedSharedImpl_Revert( + IStorage* iface) +{ + TransactedSharedImpl* This = (TransactedSharedImpl*)impl_from_IStorage(iface); + + TRACE("(%p)\n", iface); + + /* Destroy the open objects. */ + StorageBaseImpl_DeleteAll(&This->base); + + return IStorage_Revert(&This->scratch->base.IStorage_iface); +} + +static const IStorageVtbl TransactedSharedImpl_Vtbl = +{ + StorageBaseImpl_QueryInterface, + StorageBaseImpl_AddRef, + StorageBaseImpl_Release, + StorageBaseImpl_CreateStream, + StorageBaseImpl_OpenStream, + StorageBaseImpl_CreateStorage, + StorageBaseImpl_OpenStorage, + StorageBaseImpl_CopyTo, + StorageBaseImpl_MoveElementTo, + TransactedSharedImpl_Commit, + TransactedSharedImpl_Revert, + StorageBaseImpl_EnumElements, + StorageBaseImpl_DestroyElement, + StorageBaseImpl_RenameElement, + StorageBaseImpl_SetElementTimes, + StorageBaseImpl_SetClass, + StorageBaseImpl_SetStateBits, + StorageBaseImpl_Stat +}; + +static const StorageBaseImplVtbl TransactedSharedImpl_BaseVtbl = +{ + TransactedSharedImpl_Destroy, + TransactedSharedImpl_Invalidate, + TransactedSharedImpl_Flush, + TransactedSharedImpl_GetFilename, + TransactedSharedImpl_CreateDirEntry, + TransactedSharedImpl_WriteDirEntry, + TransactedSharedImpl_ReadDirEntry, + TransactedSharedImpl_DestroyDirEntry, + TransactedSharedImpl_StreamReadAt, + TransactedSharedImpl_StreamWriteAt, + TransactedSharedImpl_StreamSetSize, + TransactedSharedImpl_StreamLink, + TransactedSharedImpl_GetTransactionSig, + TransactedSharedImpl_SetTransactionSig, + TransactedSharedImpl_LockTransaction, + TransactedSharedImpl_UnlockTransaction +}; + +static HRESULT TransactedSharedImpl_Construct(StorageBaseImpl *parentStorage, + TransactedSharedImpl** result) +{ + HRESULT hr; + + *result = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(TransactedSharedImpl)); + if (*result) + { + IStorage *scratch; + + (*result)->base.IStorage_iface.lpVtbl = &TransactedSharedImpl_Vtbl; + + /* This is OK because the property set storage functions use the IStorage functions. */ + (*result)->base.IPropertySetStorage_iface.lpVtbl = parentStorage->IPropertySetStorage_iface.lpVtbl; + (*result)->base.baseVtbl = &TransactedSharedImpl_BaseVtbl; + + list_init(&(*result)->base.strmHead); + + list_init(&(*result)->base.storageHead); + + (*result)->base.ref = 1; + + (*result)->base.openFlags = parentStorage->openFlags; + + hr = StorageBaseImpl_LockTransaction(parentStorage, FALSE); + + if (SUCCEEDED(hr)) + { + STGOPTIONS stgo; + + /* This cannot fail, except with E_NOTIMPL in which case we don't care */ + StorageBaseImpl_GetTransactionSig(parentStorage, &(*result)->lastTransactionSig, FALSE); + + stgo.usVersion = 1; + stgo.reserved = 0; + stgo.ulSectorSize = 4096; + stgo.pwcsTemplateFile = NULL; + + /* Create a new temporary storage to act as the scratch file. */ + hr = StgCreateStorageEx(NULL, STGM_READWRITE|STGM_SHARE_EXCLUSIVE|STGM_CREATE|STGM_DELETEONRELEASE|STGM_TRANSACTED, + STGFMT_DOCFILE, 0, &stgo, NULL, &IID_IStorage, (void**)&scratch); + (*result)->scratch = (TransactedSnapshotImpl*)impl_from_IStorage(scratch); + + if (SUCCEEDED(hr)) + { + hr = StorageBaseImpl_CopyStorageTree(&(*result)->scratch->base, (*result)->scratch->base.storageDirEntry, + parentStorage, parentStorage->storageDirEntry); + + if (SUCCEEDED(hr)) + { + hr = IStorage_Commit(scratch, STGC_DEFAULT); + + (*result)->base.storageDirEntry = (*result)->scratch->base.storageDirEntry; + (*result)->transactedParent = parentStorage; + } + + if (FAILED(hr)) + IStorage_Release(scratch); + } + + StorageBaseImpl_UnlockTransaction(parentStorage, FALSE); + } + + if (FAILED(hr)) HeapFree(GetProcessHeap(), 0, *result); + + return hr; + } + else + return E_OUTOFMEMORY; +} + +static HRESULT Storage_ConstructTransacted(StorageBaseImpl *parentStorage, + BOOL toplevel, StorageBaseImpl** result) +{ + static int fixme_flags=STGM_NOSCRATCH|STGM_NOSNAPSHOT; + + if (parentStorage->openFlags & fixme_flags) + { + fixme_flags &= ~parentStorage->openFlags; + FIXME("Unimplemented flags %lx\n", parentStorage->openFlags); + } + + if (toplevel && !(parentStorage->openFlags & STGM_NOSNAPSHOT) && + STGM_SHARE_MODE(parentStorage->openFlags) != STGM_SHARE_DENY_WRITE && + STGM_SHARE_MODE(parentStorage->openFlags) != STGM_SHARE_EXCLUSIVE) + { + /* Need to create a temp file for the snapshot */ + return TransactedSharedImpl_Construct(parentStorage, (TransactedSharedImpl**)result); + } + + return TransactedSnapshotImpl_Construct(parentStorage, + (TransactedSnapshotImpl**)result); +} + +static HRESULT Storage_Construct( + HANDLE hFile, + LPCOLESTR pwcsName, + ILockBytes* pLkbyt, + DWORD openFlags, + BOOL fileBased, + BOOL create, + ULONG sector_size, + StorageBaseImpl** result) +{ + StorageImpl *newStorage; + StorageBaseImpl *newTransactedStorage; + HRESULT hr; + + hr = StorageImpl_Construct(hFile, pwcsName, pLkbyt, openFlags, fileBased, create, sector_size, &newStorage); + if (FAILED(hr)) goto end; + + if (openFlags & STGM_TRANSACTED) + { + hr = Storage_ConstructTransacted(&newStorage->base, TRUE, &newTransactedStorage); + if (FAILED(hr)) + IStorage_Release(&newStorage->base.IStorage_iface); + else + *result = newTransactedStorage; + } + else + *result = &newStorage->base; + +end: + return hr; +} + + +/************************************************************************ + * StorageUtl helper functions + ***********************************************************************/ + +void StorageUtl_ReadWord(const BYTE* buffer, ULONG offset, WORD* value) +{ + WORD tmp; + + memcpy(&tmp, buffer+offset, sizeof(WORD)); + *value = lendian16toh(tmp); +} + +void StorageUtl_WriteWord(void *buffer, ULONG offset, WORD value) +{ + value = htole16(value); + memcpy((BYTE *)buffer + offset, &value, sizeof(WORD)); +} + +void StorageUtl_ReadDWord(const BYTE* buffer, ULONG offset, DWORD* value) +{ + DWORD tmp; + + memcpy(&tmp, buffer+offset, sizeof(DWORD)); + *value = lendian32toh(tmp); +} + +void StorageUtl_WriteDWord(void *buffer, ULONG offset, DWORD value) +{ + value = htole32(value); + memcpy((BYTE *)buffer + offset, &value, sizeof(DWORD)); +} + +void StorageUtl_ReadULargeInteger(const BYTE* buffer, ULONG offset, + ULARGE_INTEGER* value) +{ +#ifdef WORDS_BIGENDIAN + ULARGE_INTEGER tmp; + + memcpy(&tmp, buffer + offset, sizeof(ULARGE_INTEGER)); + value->u.LowPart = htole32(tmp.HighPart); + value->u.HighPart = htole32(tmp.LowPart); +#else + memcpy(value, buffer + offset, sizeof(ULARGE_INTEGER)); +#endif +} + +void StorageUtl_WriteULargeInteger(void *buffer, ULONG offset, const ULARGE_INTEGER *value) +{ +#ifdef WORDS_BIGENDIAN + ULARGE_INTEGER tmp; + + tmp.LowPart = htole32(value->u.HighPart); + tmp.HighPart = htole32(value->u.LowPart); + memcpy((BYTE *)buffer + offset, &tmp, sizeof(ULARGE_INTEGER)); +#else + memcpy((BYTE *)buffer + offset, value, sizeof(ULARGE_INTEGER)); +#endif +} + +void StorageUtl_ReadGUID(const BYTE* buffer, ULONG offset, GUID* value) +{ + StorageUtl_ReadDWord(buffer, offset, (DWORD *)&value->Data1); + StorageUtl_ReadWord(buffer, offset+4, &(value->Data2)); + StorageUtl_ReadWord(buffer, offset+6, &(value->Data3)); + + memcpy(value->Data4, buffer+offset+8, sizeof(value->Data4)); +} + +void StorageUtl_WriteGUID(void *buffer, ULONG offset, const GUID* value) +{ + StorageUtl_WriteDWord(buffer, offset, value->Data1); + StorageUtl_WriteWord(buffer, offset+4, value->Data2); + StorageUtl_WriteWord(buffer, offset+6, value->Data3); + + memcpy((BYTE *)buffer + offset + 8, value->Data4, sizeof(value->Data4)); +} + +void StorageUtl_CopyDirEntryToSTATSTG( + StorageBaseImpl* storage, + STATSTG* destination, + const DirEntry* source, + int statFlags) +{ + /* + * The copy of the string occurs only when the flag is not set + */ + if (!(statFlags & STATFLAG_NONAME) && source->stgType == STGTY_ROOT) + { + /* Use the filename for the root storage. */ + destination->pwcsName = 0; + StorageBaseImpl_GetFilename(storage, &destination->pwcsName); + } + else if( ((statFlags & STATFLAG_NONAME) != 0) || + (source->name[0] == 0) ) + { + destination->pwcsName = 0; + } + else + { + destination->pwcsName = + CoTaskMemAlloc((lstrlenW(source->name)+1)*sizeof(WCHAR)); + + lstrcpyW(destination->pwcsName, source->name); + } + + switch (source->stgType) + { + case STGTY_STORAGE: + case STGTY_ROOT: + destination->type = STGTY_STORAGE; + break; + case STGTY_STREAM: + destination->type = STGTY_STREAM; + break; + default: + destination->type = STGTY_STREAM; + break; + } + + destination->cbSize = source->size; +/* + currentReturnStruct->mtime = {0}; TODO + currentReturnStruct->ctime = {0}; + currentReturnStruct->atime = {0}; +*/ + destination->grfMode = 0; + destination->grfLocksSupported = 0; + destination->clsid = source->clsid; + destination->grfStateBits = 0; + destination->reserved = 0; +} + + +/************************************************************************ + * BlockChainStream implementation + ***********************************************************************/ + +/****************************************************************************** + * BlockChainStream_GetHeadOfChain + * + * Returns the head of this stream chain. + * Some special chains don't have directory entries, their heads are kept in + * This->headOfStreamPlaceHolder. + * + */ +static ULONG BlockChainStream_GetHeadOfChain(BlockChainStream* This) +{ + DirEntry chainEntry; + HRESULT hr; + + if (This->headOfStreamPlaceHolder != 0) + return *(This->headOfStreamPlaceHolder); + + if (This->ownerDirEntry != DIRENTRY_NULL) + { + hr = StorageImpl_ReadDirEntry( + This->parentStorage, + This->ownerDirEntry, + &chainEntry); + + if (SUCCEEDED(hr) && chainEntry.startingBlock < BLOCK_FIRST_SPECIAL) + return chainEntry.startingBlock; + } + + return BLOCK_END_OF_CHAIN; +} + +/* Read and save the index of all blocks in this stream. */ +static HRESULT BlockChainStream_UpdateIndexCache(BlockChainStream* This) +{ + ULONG next_sector, next_offset; + HRESULT hr; + struct BlockChainRun *last_run; + + if (This->indexCacheLen == 0) + { + last_run = NULL; + next_offset = 0; + next_sector = BlockChainStream_GetHeadOfChain(This); + } + else + { + last_run = &This->indexCache[This->indexCacheLen-1]; + next_offset = last_run->lastOffset+1; + hr = StorageImpl_GetNextBlockInChain(This->parentStorage, + last_run->firstSector + last_run->lastOffset - last_run->firstOffset, + &next_sector); + if (FAILED(hr)) return hr; + } + + while (next_sector != BLOCK_END_OF_CHAIN) + { + if (!last_run || next_sector != last_run->firstSector + next_offset - last_run->firstOffset) + { + /* Add the current block to the cache. */ + if (This->indexCacheSize == 0) + { + This->indexCache = HeapAlloc(GetProcessHeap(), 0, sizeof(struct BlockChainRun)*16); + if (!This->indexCache) return E_OUTOFMEMORY; + This->indexCacheSize = 16; + } + else if (This->indexCacheSize == This->indexCacheLen) + { + struct BlockChainRun *new_cache; + ULONG new_size; + + new_size = This->indexCacheSize * 2; + new_cache = HeapAlloc(GetProcessHeap(), 0, sizeof(struct BlockChainRun)*new_size); + if (!new_cache) return E_OUTOFMEMORY; + memcpy(new_cache, This->indexCache, sizeof(struct BlockChainRun)*This->indexCacheLen); + + HeapFree(GetProcessHeap(), 0, This->indexCache); + This->indexCache = new_cache; + This->indexCacheSize = new_size; + } + + This->indexCacheLen++; + last_run = &This->indexCache[This->indexCacheLen-1]; + last_run->firstSector = next_sector; + last_run->firstOffset = next_offset; + } + + last_run->lastOffset = next_offset; + + /* Find the next block. */ + next_offset++; + hr = StorageImpl_GetNextBlockInChain(This->parentStorage, next_sector, &next_sector); + if (FAILED(hr)) return hr; + } + + if (This->indexCacheLen) + { + This->tailIndex = last_run->firstSector + last_run->lastOffset - last_run->firstOffset; + This->numBlocks = last_run->lastOffset+1; + } + else + { + This->tailIndex = BLOCK_END_OF_CHAIN; + This->numBlocks = 0; + } + + return S_OK; +} + +/* Locate the nth block in this stream. */ +static ULONG BlockChainStream_GetSectorOfOffset(BlockChainStream *This, ULONG offset) +{ + ULONG min_offset = 0, max_offset = This->numBlocks-1; + ULONG min_run = 0, max_run = This->indexCacheLen-1; + + if (offset >= This->numBlocks) + return BLOCK_END_OF_CHAIN; + + while (min_run < max_run) + { + ULONG run_to_check = min_run + (offset - min_offset) * (max_run - min_run) / (max_offset - min_offset); + if (offset < This->indexCache[run_to_check].firstOffset) + { + max_offset = This->indexCache[run_to_check].firstOffset-1; + max_run = run_to_check-1; + } + else if (offset > This->indexCache[run_to_check].lastOffset) + { + min_offset = This->indexCache[run_to_check].lastOffset+1; + min_run = run_to_check+1; + } + else + /* Block is in this run. */ + min_run = max_run = run_to_check; + } + + return This->indexCache[min_run].firstSector + offset - This->indexCache[min_run].firstOffset; +} + +static HRESULT BlockChainStream_GetBlockAtOffset(BlockChainStream *This, + ULONG index, BlockChainBlock **block, ULONG *sector, BOOL create) +{ + BlockChainBlock *result=NULL; + int i; + + for (i=0; i<2; i++) + if (This->cachedBlocks[i].index == index) + { + *sector = This->cachedBlocks[i].sector; + *block = &This->cachedBlocks[i]; + return S_OK; + } + + *sector = BlockChainStream_GetSectorOfOffset(This, index); + if (*sector == BLOCK_END_OF_CHAIN) + return STG_E_DOCFILECORRUPT; + + if (create) + { + if (This->cachedBlocks[0].index == 0xffffffff) + result = &This->cachedBlocks[0]; + else if (This->cachedBlocks[1].index == 0xffffffff) + result = &This->cachedBlocks[1]; + else + { + result = &This->cachedBlocks[This->blockToEvict++]; + if (This->blockToEvict == 2) + This->blockToEvict = 0; + } + + if (result->dirty) + { + if (!StorageImpl_WriteBigBlock(This->parentStorage, result->sector, result->data)) + return STG_E_WRITEFAULT; + result->dirty = FALSE; + } + + result->read = FALSE; + result->index = index; + result->sector = *sector; + } + + *block = result; + return S_OK; +} + +BlockChainStream* BlockChainStream_Construct( + StorageImpl* parentStorage, + ULONG* headOfStreamPlaceHolder, + DirRef dirEntry) +{ + BlockChainStream* newStream; + + newStream = HeapAlloc(GetProcessHeap(), 0, sizeof(BlockChainStream)); + if(!newStream) + return NULL; + + newStream->parentStorage = parentStorage; + newStream->headOfStreamPlaceHolder = headOfStreamPlaceHolder; + newStream->ownerDirEntry = dirEntry; + newStream->indexCache = NULL; + newStream->indexCacheLen = 0; + newStream->indexCacheSize = 0; + newStream->cachedBlocks[0].index = 0xffffffff; + newStream->cachedBlocks[0].dirty = FALSE; + newStream->cachedBlocks[1].index = 0xffffffff; + newStream->cachedBlocks[1].dirty = FALSE; + newStream->blockToEvict = 0; + + if (FAILED(BlockChainStream_UpdateIndexCache(newStream))) + { + HeapFree(GetProcessHeap(), 0, newStream->indexCache); + HeapFree(GetProcessHeap(), 0, newStream); + return NULL; + } + + return newStream; +} + +HRESULT BlockChainStream_Flush(BlockChainStream* This) +{ + int i; + if (!This) return S_OK; + for (i=0; i<2; i++) + { + if (This->cachedBlocks[i].dirty) + { + if (StorageImpl_WriteBigBlock(This->parentStorage, This->cachedBlocks[i].sector, This->cachedBlocks[i].data)) + This->cachedBlocks[i].dirty = FALSE; + else + return STG_E_WRITEFAULT; + } + } + return S_OK; +} + +void BlockChainStream_Destroy(BlockChainStream* This) +{ + if (This) + { + BlockChainStream_Flush(This); + HeapFree(GetProcessHeap(), 0, This->indexCache); + } + HeapFree(GetProcessHeap(), 0, This); +} + +/****************************************************************************** + * BlockChainStream_Shrink + * + * Shrinks this chain in the big block depot. + */ +static BOOL BlockChainStream_Shrink(BlockChainStream* This, + ULARGE_INTEGER newSize) +{ + ULONG blockIndex; + ULONG numBlocks; + int i; + + /* + * Figure out how many blocks are needed to contain the new size + */ + numBlocks = newSize.QuadPart / This->parentStorage->bigBlockSize; + + if ((newSize.QuadPart % This->parentStorage->bigBlockSize) != 0) + numBlocks++; + + if (numBlocks) + { + /* + * Go to the new end of chain + */ + blockIndex = BlockChainStream_GetSectorOfOffset(This, numBlocks-1); + + /* Mark the new end of chain */ + StorageImpl_SetNextBlockInChain( + This->parentStorage, + blockIndex, + BLOCK_END_OF_CHAIN); + + This->tailIndex = blockIndex; + } + else + { + if (This->headOfStreamPlaceHolder != 0) + { + *This->headOfStreamPlaceHolder = BLOCK_END_OF_CHAIN; + } + else + { + DirEntry chainEntry; + assert(This->ownerDirEntry != DIRENTRY_NULL); + + StorageImpl_ReadDirEntry( + This->parentStorage, + This->ownerDirEntry, + &chainEntry); + + chainEntry.startingBlock = BLOCK_END_OF_CHAIN; + + StorageImpl_WriteDirEntry( + This->parentStorage, + This->ownerDirEntry, + &chainEntry); + } + + This->tailIndex = BLOCK_END_OF_CHAIN; + } + + This->numBlocks = numBlocks; + + /* + * Mark the extra blocks as free + */ + while (This->indexCacheLen && This->indexCache[This->indexCacheLen-1].lastOffset >= numBlocks) + { + struct BlockChainRun *last_run = &This->indexCache[This->indexCacheLen-1]; + StorageImpl_FreeBigBlock(This->parentStorage, + last_run->firstSector + last_run->lastOffset - last_run->firstOffset); + if (last_run->lastOffset == last_run->firstOffset) + This->indexCacheLen--; + else + last_run->lastOffset--; + } + + /* + * Reset the last accessed block cache. + */ + for (i=0; i<2; i++) + { + if (This->cachedBlocks[i].index >= numBlocks) + { + This->cachedBlocks[i].index = 0xffffffff; + This->cachedBlocks[i].dirty = FALSE; + } + } + + return TRUE; +} + +/****************************************************************************** + * BlockChainStream_Enlarge + * + * Grows this chain in the big block depot. + */ +static BOOL BlockChainStream_Enlarge(BlockChainStream* This, + ULARGE_INTEGER newSize) +{ + ULONG blockIndex, currentBlock; + ULONG newNumBlocks; + ULONG oldNumBlocks = 0; + + blockIndex = BlockChainStream_GetHeadOfChain(This); + + /* + * Empty chain. Create the head. + */ + if (blockIndex == BLOCK_END_OF_CHAIN) + { + blockIndex = StorageImpl_GetNextFreeBigBlock(This->parentStorage, 1); + StorageImpl_SetNextBlockInChain(This->parentStorage, + blockIndex, + BLOCK_END_OF_CHAIN); + + if (This->headOfStreamPlaceHolder != 0) + { + *(This->headOfStreamPlaceHolder) = blockIndex; + } + else + { + DirEntry chainEntry; + assert(This->ownerDirEntry != DIRENTRY_NULL); + + StorageImpl_ReadDirEntry( + This->parentStorage, + This->ownerDirEntry, + &chainEntry); + + chainEntry.startingBlock = blockIndex; + + StorageImpl_WriteDirEntry( + This->parentStorage, + This->ownerDirEntry, + &chainEntry); + } + + This->tailIndex = blockIndex; + This->numBlocks = 1; + } + + /* + * Figure out how many blocks are needed to contain this stream + */ + newNumBlocks = newSize.QuadPart / This->parentStorage->bigBlockSize; + + if ((newSize.QuadPart % This->parentStorage->bigBlockSize) != 0) + newNumBlocks++; + + /* + * Go to the current end of chain + */ + if (This->tailIndex == BLOCK_END_OF_CHAIN) + { + currentBlock = blockIndex; + + while (blockIndex != BLOCK_END_OF_CHAIN) + { + This->numBlocks++; + currentBlock = blockIndex; + + if(FAILED(StorageImpl_GetNextBlockInChain(This->parentStorage, currentBlock, + &blockIndex))) + return FALSE; + } + + This->tailIndex = currentBlock; + } + + currentBlock = This->tailIndex; + oldNumBlocks = This->numBlocks; + + /* + * Add new blocks to the chain + */ + if (oldNumBlocks < newNumBlocks) + { + while (oldNumBlocks < newNumBlocks) + { + blockIndex = StorageImpl_GetNextFreeBigBlock(This->parentStorage, newNumBlocks - oldNumBlocks); + + StorageImpl_SetNextBlockInChain( + This->parentStorage, + currentBlock, + blockIndex); + + StorageImpl_SetNextBlockInChain( + This->parentStorage, + blockIndex, + BLOCK_END_OF_CHAIN); + + currentBlock = blockIndex; + oldNumBlocks++; + } + + This->tailIndex = blockIndex; + This->numBlocks = newNumBlocks; + } + + if (FAILED(BlockChainStream_UpdateIndexCache(This))) + return FALSE; + + return TRUE; +} + + +/****************************************************************************** + * BlockChainStream_GetSize + * + * Returns the size of this chain. + * Will return the block count if this chain doesn't have a directory entry. + */ +static ULARGE_INTEGER BlockChainStream_GetSize(BlockChainStream* This) +{ + DirEntry chainEntry; + + if(This->headOfStreamPlaceHolder == NULL) + { + /* + * This chain has a directory entry so use the size value from there. + */ + StorageImpl_ReadDirEntry( + This->parentStorage, + This->ownerDirEntry, + &chainEntry); + + return chainEntry.size; + } + else + { + /* + * this chain is a chain that does not have a directory entry, figure out the + * size by making the product number of used blocks times the + * size of them + */ + ULARGE_INTEGER result; + result.QuadPart = + (ULONGLONG)BlockChainStream_GetCount(This) * + This->parentStorage->bigBlockSize; + + return result; + } +} + +/****************************************************************************** + * BlockChainStream_SetSize + * + * Sets the size of this stream. The big block depot will be updated. + * The file will grow if we grow the chain. + * + * TODO: Free the actual blocks in the file when we shrink the chain. + * Currently, the blocks are still in the file. So the file size + * doesn't shrink even if we shrink streams. + */ +BOOL BlockChainStream_SetSize( + BlockChainStream* This, + ULARGE_INTEGER newSize) +{ + ULARGE_INTEGER size = BlockChainStream_GetSize(This); + + if (newSize.QuadPart == size.QuadPart) + return TRUE; + + if (newSize.QuadPart < size.QuadPart) + { + BlockChainStream_Shrink(This, newSize); + } + else + { + BlockChainStream_Enlarge(This, newSize); + } + + return TRUE; +} + +/****************************************************************************** + * BlockChainStream_ReadAt + * + * Reads a specified number of bytes from this chain at the specified offset. + * bytesRead may be NULL. + * Failure will be returned if the specified number of bytes has not been read. + */ +HRESULT BlockChainStream_ReadAt(BlockChainStream* This, + ULARGE_INTEGER offset, + ULONG size, + void* buffer, + ULONG* bytesRead) +{ + ULONG blockNoInSequence = offset.QuadPart / This->parentStorage->bigBlockSize; + ULONG offsetInBlock = offset.QuadPart % This->parentStorage->bigBlockSize; + ULONG bytesToReadInBuffer; + ULONG blockIndex; + BYTE* bufferWalker; + ULARGE_INTEGER stream_size; + HRESULT hr; + BlockChainBlock *cachedBlock; + + TRACE("%p, %li, %p, %lu, %p.\n",This, offset.LowPart, buffer, size, bytesRead); + + /* + * Find the first block in the stream that contains part of the buffer. + */ + blockIndex = BlockChainStream_GetSectorOfOffset(This, blockNoInSequence); + + *bytesRead = 0; + + stream_size = BlockChainStream_GetSize(This); + if (stream_size.QuadPart > offset.QuadPart) + size = min(stream_size.QuadPart - offset.QuadPart, size); + else + return S_OK; + + /* + * Start reading the buffer. + */ + bufferWalker = buffer; + + while (size > 0) + { + ULARGE_INTEGER ulOffset; + DWORD bytesReadAt; + + /* + * Calculate how many bytes we can copy from this big block. + */ + bytesToReadInBuffer = + min(This->parentStorage->bigBlockSize - offsetInBlock, size); + + hr = BlockChainStream_GetBlockAtOffset(This, blockNoInSequence, &cachedBlock, &blockIndex, size == bytesToReadInBuffer); + + if (FAILED(hr)) + return hr; + + if (!cachedBlock) + { + /* Not in cache, and we're going to read past the end of the block. */ + ulOffset.QuadPart = StorageImpl_GetBigBlockOffset(This->parentStorage, blockIndex) + + offsetInBlock; + + StorageImpl_ReadAt(This->parentStorage, + ulOffset, + bufferWalker, + bytesToReadInBuffer, + &bytesReadAt); + } + else + { + if (!cachedBlock->read) + { + ULONG read; + if (FAILED(StorageImpl_ReadBigBlock(This->parentStorage, cachedBlock->sector, cachedBlock->data, &read)) && !read) + return STG_E_READFAULT; + + cachedBlock->read = TRUE; + } + + memcpy(bufferWalker, cachedBlock->data+offsetInBlock, bytesToReadInBuffer); + bytesReadAt = bytesToReadInBuffer; + } + + blockNoInSequence++; + bufferWalker += bytesReadAt; + size -= bytesReadAt; + *bytesRead += bytesReadAt; + offsetInBlock = 0; /* There is no offset on the next block */ + + if (bytesToReadInBuffer != bytesReadAt) + break; + } + + return S_OK; +} + +/****************************************************************************** + * BlockChainStream_WriteAt + * + * Writes the specified number of bytes to this chain at the specified offset. + * Will fail if not all specified number of bytes have been written. + */ +HRESULT BlockChainStream_WriteAt(BlockChainStream* This, + ULARGE_INTEGER offset, + ULONG size, + const void* buffer, + ULONG* bytesWritten) +{ + ULONG blockNoInSequence = offset.QuadPart / This->parentStorage->bigBlockSize; + ULONG offsetInBlock = offset.QuadPart % This->parentStorage->bigBlockSize; + ULONG bytesToWrite; + ULONG blockIndex; + const BYTE* bufferWalker; + HRESULT hr; + BlockChainBlock *cachedBlock; + + *bytesWritten = 0; + bufferWalker = buffer; + + while (size > 0) + { + ULARGE_INTEGER ulOffset; + DWORD bytesWrittenAt; + + /* + * Calculate how many bytes we can copy to this big block. + */ + bytesToWrite = + min(This->parentStorage->bigBlockSize - offsetInBlock, size); + + hr = BlockChainStream_GetBlockAtOffset(This, blockNoInSequence, &cachedBlock, &blockIndex, size == bytesToWrite); + + /* BlockChainStream_SetSize should have already been called to ensure we have + * enough blocks in the chain to write into */ + if (FAILED(hr)) + { + ERR("not enough blocks in chain to write data\n"); + return hr; + } + + if (!cachedBlock) + { + /* Not in cache, and we're going to write past the end of the block. */ + ulOffset.QuadPart = StorageImpl_GetBigBlockOffset(This->parentStorage, blockIndex) + + offsetInBlock; + + StorageImpl_WriteAt(This->parentStorage, + ulOffset, + bufferWalker, + bytesToWrite, + &bytesWrittenAt); + } + else + { + if (!cachedBlock->read && bytesToWrite != This->parentStorage->bigBlockSize) + { + ULONG read; + if (FAILED(StorageImpl_ReadBigBlock(This->parentStorage, cachedBlock->sector, cachedBlock->data, &read)) && !read) + return STG_E_READFAULT; + } + + memcpy(cachedBlock->data+offsetInBlock, bufferWalker, bytesToWrite); + bytesWrittenAt = bytesToWrite; + cachedBlock->read = TRUE; + cachedBlock->dirty = TRUE; + } + + blockNoInSequence++; + bufferWalker += bytesWrittenAt; + size -= bytesWrittenAt; + *bytesWritten += bytesWrittenAt; + offsetInBlock = 0; /* There is no offset on the next block */ + + if (bytesWrittenAt != bytesToWrite) + break; + } + + return (size == 0) ? S_OK : STG_E_WRITEFAULT; +} + + +/************************************************************************ + * SmallBlockChainStream implementation + ***********************************************************************/ + +SmallBlockChainStream* SmallBlockChainStream_Construct( + StorageImpl* parentStorage, + ULONG* headOfStreamPlaceHolder, + DirRef dirEntry) +{ + SmallBlockChainStream* newStream; + + newStream = HeapAlloc(GetProcessHeap(), 0, sizeof(SmallBlockChainStream)); + + newStream->parentStorage = parentStorage; + newStream->headOfStreamPlaceHolder = headOfStreamPlaceHolder; + newStream->ownerDirEntry = dirEntry; + + return newStream; +} + +void SmallBlockChainStream_Destroy( + SmallBlockChainStream* This) +{ + HeapFree(GetProcessHeap(), 0, This); +} + +/****************************************************************************** + * SmallBlockChainStream_GetHeadOfChain + * + * Returns the head of this chain of small blocks. + */ +static ULONG SmallBlockChainStream_GetHeadOfChain( + SmallBlockChainStream* This) +{ + DirEntry chainEntry; + HRESULT hr; + + if (This->headOfStreamPlaceHolder != NULL) + return *(This->headOfStreamPlaceHolder); + + if (This->ownerDirEntry) + { + hr = StorageImpl_ReadDirEntry( + This->parentStorage, + This->ownerDirEntry, + &chainEntry); + + if (SUCCEEDED(hr) && chainEntry.startingBlock < BLOCK_FIRST_SPECIAL) + return chainEntry.startingBlock; + } + + return BLOCK_END_OF_CHAIN; +} + +/****************************************************************************** + * SmallBlockChainStream_GetNextBlockInChain + * + * Returns the index of the next small block in this chain. + * + * Return Values: + * - BLOCK_END_OF_CHAIN: end of this chain + * - BLOCK_UNUSED: small block 'blockIndex' is free + */ +static HRESULT SmallBlockChainStream_GetNextBlockInChain( + SmallBlockChainStream* This, + ULONG blockIndex, + ULONG* nextBlockInChain) +{ + ULARGE_INTEGER offsetOfBlockInDepot; + DWORD buffer; + ULONG bytesRead; + HRESULT res; + + *nextBlockInChain = BLOCK_END_OF_CHAIN; + + offsetOfBlockInDepot.QuadPart = (ULONGLONG)blockIndex * sizeof(ULONG); + + /* + * Read those bytes in the buffer from the small block file. + */ + res = BlockChainStream_ReadAt( + This->parentStorage->smallBlockDepotChain, + offsetOfBlockInDepot, + sizeof(DWORD), + &buffer, + &bytesRead); + + if (SUCCEEDED(res) && bytesRead != sizeof(DWORD)) + res = STG_E_READFAULT; + + if (SUCCEEDED(res)) + { + StorageUtl_ReadDWord((BYTE *)&buffer, 0, nextBlockInChain); + return S_OK; + } + + return res; +} + +/****************************************************************************** + * SmallBlockChainStream_SetNextBlockInChain + * + * Writes the index of the next block of the specified block in the small + * block depot. + * To set the end of chain use BLOCK_END_OF_CHAIN as nextBlock. + * To flag a block as free use BLOCK_UNUSED as nextBlock. + */ +static void SmallBlockChainStream_SetNextBlockInChain( + SmallBlockChainStream* This, + ULONG blockIndex, + ULONG nextBlock) +{ + ULARGE_INTEGER offsetOfBlockInDepot; + DWORD buffer; + ULONG bytesWritten; + + offsetOfBlockInDepot.QuadPart = (ULONGLONG)blockIndex * sizeof(ULONG); + + StorageUtl_WriteDWord(&buffer, 0, nextBlock); + + /* + * Read those bytes in the buffer from the small block file. + */ + BlockChainStream_WriteAt( + This->parentStorage->smallBlockDepotChain, + offsetOfBlockInDepot, + sizeof(DWORD), + &buffer, + &bytesWritten); +} + +/****************************************************************************** + * SmallBlockChainStream_FreeBlock + * + * Flag small block 'blockIndex' as free in the small block depot. + */ +static void SmallBlockChainStream_FreeBlock( + SmallBlockChainStream* This, + ULONG blockIndex) +{ + SmallBlockChainStream_SetNextBlockInChain(This, blockIndex, BLOCK_UNUSED); +} + +/****************************************************************************** + * SmallBlockChainStream_GetNextFreeBlock + * + * Returns the index of a free small block. The small block depot will be + * enlarged if necessary. The small block chain will also be enlarged if + * necessary. + */ +static ULONG SmallBlockChainStream_GetNextFreeBlock( + SmallBlockChainStream* This) +{ + ULARGE_INTEGER offsetOfBlockInDepot; + DWORD buffer; + ULONG bytesRead; + ULONG blockIndex = This->parentStorage->firstFreeSmallBlock; + ULONG nextBlockIndex = BLOCK_END_OF_CHAIN; + HRESULT res = S_OK; + ULONG smallBlocksPerBigBlock; + DirEntry rootEntry; + ULONG blocksRequired; + ULARGE_INTEGER old_size, size_required; + + offsetOfBlockInDepot.HighPart = 0; + + /* + * Scan the small block depot for a free block + */ + while (nextBlockIndex != BLOCK_UNUSED) + { + offsetOfBlockInDepot.QuadPart = (ULONGLONG)blockIndex * sizeof(ULONG); + + res = BlockChainStream_ReadAt( + This->parentStorage->smallBlockDepotChain, + offsetOfBlockInDepot, + sizeof(DWORD), + &buffer, + &bytesRead); + + /* + * If we run out of space for the small block depot, enlarge it + */ + if (SUCCEEDED(res) && bytesRead == sizeof(DWORD)) + { + StorageUtl_ReadDWord((BYTE *)&buffer, 0, &nextBlockIndex); + + if (nextBlockIndex != BLOCK_UNUSED) + blockIndex++; + } + else + { + ULONG count = + BlockChainStream_GetCount(This->parentStorage->smallBlockDepotChain); + + BYTE smallBlockDepot[MAX_BIG_BLOCK_SIZE]; + ULARGE_INTEGER newSize, offset; + ULONG bytesWritten; + + newSize.QuadPart = (ULONGLONG)(count + 1) * This->parentStorage->bigBlockSize; + BlockChainStream_Enlarge(This->parentStorage->smallBlockDepotChain, newSize); + + /* + * Initialize all the small blocks to free + */ + memset(smallBlockDepot, BLOCK_UNUSED, This->parentStorage->bigBlockSize); + offset.QuadPart = (ULONGLONG)count * This->parentStorage->bigBlockSize; + BlockChainStream_WriteAt(This->parentStorage->smallBlockDepotChain, + offset, This->parentStorage->bigBlockSize, smallBlockDepot, &bytesWritten); + + StorageImpl_SaveFileHeader(This->parentStorage); + } + } + + This->parentStorage->firstFreeSmallBlock = blockIndex+1; + + smallBlocksPerBigBlock = + This->parentStorage->bigBlockSize / This->parentStorage->smallBlockSize; + + /* + * Verify if we have to allocate big blocks to contain small blocks + */ + blocksRequired = (blockIndex / smallBlocksPerBigBlock) + 1; + + size_required.QuadPart = (ULONGLONG)blocksRequired * This->parentStorage->bigBlockSize; + + old_size = BlockChainStream_GetSize(This->parentStorage->smallBlockRootChain); + + if (size_required.QuadPart > old_size.QuadPart) + { + BlockChainStream_SetSize( + This->parentStorage->smallBlockRootChain, + size_required); + + StorageImpl_ReadDirEntry( + This->parentStorage, + This->parentStorage->base.storageDirEntry, + &rootEntry); + + rootEntry.size = size_required; + + StorageImpl_WriteDirEntry( + This->parentStorage, + This->parentStorage->base.storageDirEntry, + &rootEntry); + } + + return blockIndex; +} + +/****************************************************************************** + * SmallBlockChainStream_ReadAt + * + * Reads a specified number of bytes from this chain at the specified offset. + * bytesRead may be NULL. + * Failure will be returned if the specified number of bytes has not been read. + */ +HRESULT SmallBlockChainStream_ReadAt( + SmallBlockChainStream* This, + ULARGE_INTEGER offset, + ULONG size, + void* buffer, + ULONG* bytesRead) +{ + HRESULT rc = S_OK; + ULARGE_INTEGER offsetInBigBlockFile; + ULONG blockNoInSequence = + offset.LowPart / This->parentStorage->smallBlockSize; + + ULONG offsetInBlock = offset.LowPart % This->parentStorage->smallBlockSize; + ULONG bytesToReadInBuffer; + ULONG blockIndex; + ULONG bytesReadFromBigBlockFile; + BYTE* bufferWalker; + ULARGE_INTEGER stream_size; + + /* + * This should never happen on a small block file. + */ + assert(offset.HighPart==0); + + *bytesRead = 0; + + stream_size = SmallBlockChainStream_GetSize(This); + if (stream_size.QuadPart > offset.QuadPart) + size = min(stream_size.QuadPart - offset.QuadPart, size); + else + return S_OK; + + /* + * Find the first block in the stream that contains part of the buffer. + */ + blockIndex = SmallBlockChainStream_GetHeadOfChain(This); + + while ( (blockNoInSequence > 0) && (blockIndex != BLOCK_END_OF_CHAIN)) + { + rc = SmallBlockChainStream_GetNextBlockInChain(This, blockIndex, &blockIndex); + if(FAILED(rc)) + return rc; + blockNoInSequence--; + } + + /* + * Start reading the buffer. + */ + bufferWalker = buffer; + + while ( (size > 0) && (blockIndex != BLOCK_END_OF_CHAIN) ) + { + /* + * Calculate how many bytes we can copy from this small block. + */ + bytesToReadInBuffer = + min(This->parentStorage->smallBlockSize - offsetInBlock, size); + + /* + * Calculate the offset of the small block in the small block file. + */ + offsetInBigBlockFile.QuadPart = + (ULONGLONG)blockIndex * This->parentStorage->smallBlockSize; + + offsetInBigBlockFile.QuadPart += offsetInBlock; + + /* + * Read those bytes in the buffer from the small block file. + * The small block has already been identified so it shouldn't fail + * unless the file is corrupt. + */ + rc = BlockChainStream_ReadAt(This->parentStorage->smallBlockRootChain, + offsetInBigBlockFile, + bytesToReadInBuffer, + bufferWalker, + &bytesReadFromBigBlockFile); + + if (FAILED(rc)) + return rc; + + if (!bytesReadFromBigBlockFile) + return STG_E_DOCFILECORRUPT; + + /* + * Step to the next big block. + */ + rc = SmallBlockChainStream_GetNextBlockInChain(This, blockIndex, &blockIndex); + if(FAILED(rc)) + return STG_E_DOCFILECORRUPT; + + bufferWalker += bytesReadFromBigBlockFile; + size -= bytesReadFromBigBlockFile; + *bytesRead += bytesReadFromBigBlockFile; + offsetInBlock = (offsetInBlock + bytesReadFromBigBlockFile) % This->parentStorage->smallBlockSize; + } + + return S_OK; +} + +/****************************************************************************** + * SmallBlockChainStream_WriteAt + * + * Writes the specified number of bytes to this chain at the specified offset. + * Will fail if not all specified number of bytes have been written. + */ +HRESULT SmallBlockChainStream_WriteAt( + SmallBlockChainStream* This, + ULARGE_INTEGER offset, + ULONG size, + const void* buffer, + ULONG* bytesWritten) +{ + ULARGE_INTEGER offsetInBigBlockFile; + ULONG blockNoInSequence = + offset.LowPart / This->parentStorage->smallBlockSize; + + ULONG offsetInBlock = offset.LowPart % This->parentStorage->smallBlockSize; + ULONG bytesToWriteInBuffer; + ULONG blockIndex; + ULONG bytesWrittenToBigBlockFile; + const BYTE* bufferWalker; + HRESULT res; + + /* + * This should never happen on a small block file. + */ + assert(offset.HighPart==0); + + /* + * Find the first block in the stream that contains part of the buffer. + */ + blockIndex = SmallBlockChainStream_GetHeadOfChain(This); + + while ( (blockNoInSequence > 0) && (blockIndex != BLOCK_END_OF_CHAIN)) + { + if(FAILED(SmallBlockChainStream_GetNextBlockInChain(This, blockIndex, &blockIndex))) + return STG_E_DOCFILECORRUPT; + blockNoInSequence--; + } + + /* + * Start writing the buffer. + */ + *bytesWritten = 0; + bufferWalker = buffer; + while ( (size > 0) && (blockIndex != BLOCK_END_OF_CHAIN) ) + { + /* + * Calculate how many bytes we can copy to this small block. + */ + bytesToWriteInBuffer = + min(This->parentStorage->smallBlockSize - offsetInBlock, size); + + /* + * Calculate the offset of the small block in the small block file. + */ + offsetInBigBlockFile.QuadPart = + (ULONGLONG)blockIndex * This->parentStorage->smallBlockSize; + + offsetInBigBlockFile.QuadPart += offsetInBlock; + + /* + * Write those bytes in the buffer to the small block file. + */ + res = BlockChainStream_WriteAt( + This->parentStorage->smallBlockRootChain, + offsetInBigBlockFile, + bytesToWriteInBuffer, + bufferWalker, + &bytesWrittenToBigBlockFile); + if (FAILED(res)) + return res; + + /* + * Step to the next big block. + */ + res = SmallBlockChainStream_GetNextBlockInChain(This, blockIndex, &blockIndex); + if (FAILED(res)) + return res; + bufferWalker += bytesWrittenToBigBlockFile; + size -= bytesWrittenToBigBlockFile; + *bytesWritten += bytesWrittenToBigBlockFile; + offsetInBlock = (offsetInBlock + bytesWrittenToBigBlockFile) % This->parentStorage->smallBlockSize; + } + + return (size == 0) ? S_OK : STG_E_WRITEFAULT; +} + +/****************************************************************************** + * SmallBlockChainStream_Shrink + * + * Shrinks this chain in the small block depot. + */ +static BOOL SmallBlockChainStream_Shrink( + SmallBlockChainStream* This, + ULARGE_INTEGER newSize) +{ + ULONG blockIndex, extraBlock; + ULONG numBlocks; + ULONG count = 0; + + numBlocks = newSize.LowPart / This->parentStorage->smallBlockSize; + + if ((newSize.LowPart % This->parentStorage->smallBlockSize) != 0) + numBlocks++; + + blockIndex = SmallBlockChainStream_GetHeadOfChain(This); + + /* + * Go to the new end of chain + */ + while (count < numBlocks) + { + if(FAILED(SmallBlockChainStream_GetNextBlockInChain(This, blockIndex, + &blockIndex))) + return FALSE; + count++; + } + + /* + * If the count is 0, we have a special case, the head of the chain was + * just freed. + */ + if (count == 0) + { + DirEntry chainEntry; + + StorageImpl_ReadDirEntry(This->parentStorage, + This->ownerDirEntry, + &chainEntry); + + chainEntry.startingBlock = BLOCK_END_OF_CHAIN; + + StorageImpl_WriteDirEntry(This->parentStorage, + This->ownerDirEntry, + &chainEntry); + + /* + * We start freeing the chain at the head block. + */ + extraBlock = blockIndex; + } + else + { + /* Get the next block before marking the new end */ + if(FAILED(SmallBlockChainStream_GetNextBlockInChain(This, blockIndex, + &extraBlock))) + return FALSE; + + /* Mark the new end of chain */ + SmallBlockChainStream_SetNextBlockInChain( + This, + blockIndex, + BLOCK_END_OF_CHAIN); + } + + /* + * Mark the extra blocks as free + */ + while (extraBlock != BLOCK_END_OF_CHAIN) + { + if(FAILED(SmallBlockChainStream_GetNextBlockInChain(This, extraBlock, + &blockIndex))) + return FALSE; + SmallBlockChainStream_FreeBlock(This, extraBlock); + This->parentStorage->firstFreeSmallBlock = min(This->parentStorage->firstFreeSmallBlock, extraBlock); + extraBlock = blockIndex; + } + + return TRUE; +} + +/****************************************************************************** + * SmallBlockChainStream_Enlarge + * + * Grows this chain in the small block depot. + */ +static BOOL SmallBlockChainStream_Enlarge( + SmallBlockChainStream* This, + ULARGE_INTEGER newSize) +{ + ULONG blockIndex, currentBlock; + ULONG newNumBlocks; + ULONG oldNumBlocks = 0; + + blockIndex = SmallBlockChainStream_GetHeadOfChain(This); + + /* + * Empty chain. Create the head. + */ + if (blockIndex == BLOCK_END_OF_CHAIN) + { + blockIndex = SmallBlockChainStream_GetNextFreeBlock(This); + SmallBlockChainStream_SetNextBlockInChain( + This, + blockIndex, + BLOCK_END_OF_CHAIN); + + if (This->headOfStreamPlaceHolder != NULL) + { + *(This->headOfStreamPlaceHolder) = blockIndex; + } + else + { + DirEntry chainEntry; + + StorageImpl_ReadDirEntry(This->parentStorage, This->ownerDirEntry, + &chainEntry); + + chainEntry.startingBlock = blockIndex; + + StorageImpl_WriteDirEntry(This->parentStorage, This->ownerDirEntry, + &chainEntry); + } + } + + currentBlock = blockIndex; + + /* + * Figure out how many blocks are needed to contain this stream + */ + newNumBlocks = newSize.LowPart / This->parentStorage->smallBlockSize; + + if ((newSize.LowPart % This->parentStorage->smallBlockSize) != 0) + newNumBlocks++; + + /* + * Go to the current end of chain + */ + while (blockIndex != BLOCK_END_OF_CHAIN) + { + oldNumBlocks++; + currentBlock = blockIndex; + if(FAILED(SmallBlockChainStream_GetNextBlockInChain(This, currentBlock, &blockIndex))) + return FALSE; + } + + /* + * Add new blocks to the chain + */ + while (oldNumBlocks < newNumBlocks) + { + blockIndex = SmallBlockChainStream_GetNextFreeBlock(This); + SmallBlockChainStream_SetNextBlockInChain(This, currentBlock, blockIndex); + + SmallBlockChainStream_SetNextBlockInChain( + This, + blockIndex, + BLOCK_END_OF_CHAIN); + + currentBlock = blockIndex; + oldNumBlocks++; + } + + return TRUE; +} + +/****************************************************************************** + * SmallBlockChainStream_SetSize + * + * Sets the size of this stream. + * The file will grow if we grow the chain. + * + * TODO: Free the actual blocks in the file when we shrink the chain. + * Currently, the blocks are still in the file. So the file size + * doesn't shrink even if we shrink streams. + */ +BOOL SmallBlockChainStream_SetSize( + SmallBlockChainStream* This, + ULARGE_INTEGER newSize) +{ + ULARGE_INTEGER size = SmallBlockChainStream_GetSize(This); + + if (newSize.LowPart == size.LowPart) + return TRUE; + + if (newSize.LowPart < size.LowPart) + { + SmallBlockChainStream_Shrink(This, newSize); + } + else + { + SmallBlockChainStream_Enlarge(This, newSize); + } + + return TRUE; +} + +/****************************************************************************** + * SmallBlockChainStream_GetCount + * + * Returns the number of small blocks that comprises this chain. + * This is not the size of the stream as the last block may not be full! + * + */ +static ULONG SmallBlockChainStream_GetCount(SmallBlockChainStream* This) +{ + ULONG blockIndex; + ULONG count = 0; + + blockIndex = SmallBlockChainStream_GetHeadOfChain(This); + + while(blockIndex != BLOCK_END_OF_CHAIN) + { + count++; + + if(FAILED(SmallBlockChainStream_GetNextBlockInChain(This, + blockIndex, &blockIndex))) + return 0; + } + + return count; +} + +/****************************************************************************** + * SmallBlockChainStream_GetSize + * + * Returns the size of this chain. + */ +static ULARGE_INTEGER SmallBlockChainStream_GetSize(SmallBlockChainStream* This) +{ + DirEntry chainEntry; + + if(This->headOfStreamPlaceHolder != NULL) + { + ULARGE_INTEGER result; + result.HighPart = 0; + + result.LowPart = SmallBlockChainStream_GetCount(This) * + This->parentStorage->smallBlockSize; + + return result; + } + + StorageImpl_ReadDirEntry( + This->parentStorage, + This->ownerDirEntry, + &chainEntry); + + return chainEntry.size; +} + + +/************************************************************************ + * Miscellaneous storage functions + ***********************************************************************/ + +static HRESULT create_storagefile( + LPCOLESTR pwcsName, + DWORD grfMode, + DWORD grfAttrs, + STGOPTIONS* pStgOptions, + REFIID riid, + void** ppstgOpen) +{ + StorageBaseImpl* newStorage = 0; + HANDLE hFile = INVALID_HANDLE_VALUE; + HRESULT hr = STG_E_INVALIDFLAG; + DWORD shareMode; + DWORD accessMode; + DWORD creationMode; + DWORD fileAttributes; + WCHAR tempFileName[MAX_PATH]; + + if (ppstgOpen == 0) + return STG_E_INVALIDPOINTER; + + if (pStgOptions->ulSectorSize != MIN_BIG_BLOCK_SIZE && pStgOptions->ulSectorSize != MAX_BIG_BLOCK_SIZE) + return STG_E_INVALIDPARAMETER; + + /* if no share mode given then DENY_NONE is the default */ + if (STGM_SHARE_MODE(grfMode) == 0) + grfMode |= STGM_SHARE_DENY_NONE; + + if ( FAILED( validateSTGM(grfMode) )) + goto end; + + /* StgCreateDocFile seems to refuse readonly access, despite MSDN */ + switch(STGM_ACCESS_MODE(grfMode)) + { + case STGM_WRITE: + case STGM_READWRITE: + break; + default: + goto end; + } + + /* in direct mode, can only use SHARE_EXCLUSIVE */ + if (!(grfMode & STGM_TRANSACTED) && (STGM_SHARE_MODE(grfMode) != STGM_SHARE_EXCLUSIVE)) + goto end; + + /* but in transacted mode, any share mode is valid */ + + /* + * Generate a unique name. + */ + if (pwcsName == 0) + { + WCHAR tempPath[MAX_PATH]; + + memset(tempPath, 0, sizeof(tempPath)); + memset(tempFileName, 0, sizeof(tempFileName)); + + if ((GetTempPathW(MAX_PATH, tempPath)) == 0 ) + tempPath[0] = '.'; + + if (GetTempFileNameW(tempPath, L"STO", 0, tempFileName) != 0) + pwcsName = tempFileName; + else + { + hr = STG_E_INSUFFICIENTMEMORY; + goto end; + } + + creationMode = TRUNCATE_EXISTING; + } + else + { + creationMode = GetCreationModeFromSTGM(grfMode); + } + + /* + * Interpret the STGM value grfMode + */ + shareMode = GetShareModeFromSTGM(grfMode); + accessMode = GetAccessModeFromSTGM(grfMode); + + if (grfMode & STGM_DELETEONRELEASE) + fileAttributes = FILE_FLAG_RANDOM_ACCESS | FILE_FLAG_DELETE_ON_CLOSE; + else + fileAttributes = FILE_ATTRIBUTE_NORMAL | FILE_FLAG_RANDOM_ACCESS; + + *ppstgOpen = 0; + + hFile = CreateFileW(pwcsName, + accessMode, + shareMode, + NULL, + creationMode, + fileAttributes, + 0); + + if (hFile == INVALID_HANDLE_VALUE) + { + if(GetLastError() == ERROR_FILE_EXISTS) + hr = STG_E_FILEALREADYEXISTS; + else + hr = E_FAIL; + goto end; + } + + /* + * Allocate and initialize the new IStorage object. + */ + hr = Storage_Construct( + hFile, + pwcsName, + NULL, + grfMode, + TRUE, + TRUE, + pStgOptions->ulSectorSize, + &newStorage); + + if (FAILED(hr)) + { + goto end; + } + + hr = IStorage_QueryInterface(&newStorage->IStorage_iface, riid, ppstgOpen); + IStorage_Release(&newStorage->IStorage_iface); + +end: + TRACE("<-- %p r = %#lx\n", *ppstgOpen, hr); + + return hr; +} + +/************************************************************************ + * STGM Functions + ***********************************************************************/ + +/************************************************************************ + * This method validates an STGM parameter that can contain the values below + * + * The stgm modes in 0x0000ffff are not bit masks, but distinct 4 bit values. + * The stgm values contained in 0xffff0000 are bitmasks. + * + * STGM_DIRECT 0x00000000 + * STGM_TRANSACTED 0x00010000 + * STGM_SIMPLE 0x08000000 + * + * STGM_READ 0x00000000 + * STGM_WRITE 0x00000001 + * STGM_READWRITE 0x00000002 + * + * STGM_SHARE_DENY_NONE 0x00000040 + * STGM_SHARE_DENY_READ 0x00000030 + * STGM_SHARE_DENY_WRITE 0x00000020 + * STGM_SHARE_EXCLUSIVE 0x00000010 + * + * STGM_PRIORITY 0x00040000 + * STGM_DELETEONRELEASE 0x04000000 + * + * STGM_CREATE 0x00001000 + * STGM_CONVERT 0x00020000 + * STGM_FAILIFTHERE 0x00000000 + * + * STGM_NOSCRATCH 0x00100000 + * STGM_NOSNAPSHOT 0x00200000 + */ +static HRESULT validateSTGM(DWORD stgm) +{ + DWORD access = STGM_ACCESS_MODE(stgm); + DWORD share = STGM_SHARE_MODE(stgm); + DWORD create = STGM_CREATE_MODE(stgm); + + if (stgm&~STGM_KNOWN_FLAGS) + { + ERR("unknown flags %#lx\n", stgm); + return E_FAIL; + } + + switch (access) + { + case STGM_READ: + case STGM_WRITE: + case STGM_READWRITE: + break; + default: + return E_FAIL; + } + + switch (share) + { + case STGM_SHARE_DENY_NONE: + case STGM_SHARE_DENY_READ: + case STGM_SHARE_DENY_WRITE: + case STGM_SHARE_EXCLUSIVE: + break; + case 0: + if (!(stgm & STGM_TRANSACTED)) + return E_FAIL; + break; + default: + return E_FAIL; + } + + switch (create) + { + case STGM_CREATE: + case STGM_FAILIFTHERE: + break; + default: + return E_FAIL; + } + + /* + * STGM_DIRECT | STGM_TRANSACTED | STGM_SIMPLE + */ + if ( (stgm & STGM_TRANSACTED) && (stgm & STGM_SIMPLE) ) + return E_FAIL; + + /* + * STGM_CREATE | STGM_CONVERT + * if both are false, STGM_FAILIFTHERE is set to TRUE + */ + if ( create == STGM_CREATE && (stgm & STGM_CONVERT) ) + return E_FAIL; + + /* + * STGM_NOSCRATCH requires STGM_TRANSACTED + */ + if ( (stgm & STGM_NOSCRATCH) && !(stgm & STGM_TRANSACTED) ) + return E_FAIL; + + /* + * STGM_NOSNAPSHOT requires STGM_TRANSACTED and + * not STGM_SHARE_EXCLUSIVE or STGM_SHARE_DENY_WRITE` + */ + if ( (stgm & STGM_NOSNAPSHOT) && + (!(stgm & STGM_TRANSACTED) || + share == STGM_SHARE_EXCLUSIVE || + share == STGM_SHARE_DENY_WRITE) ) + return E_FAIL; + + return S_OK; +} + +/************************************************************************ + * GetShareModeFromSTGM + * + * This method will return a share mode flag from a STGM value. + * The STGM value is assumed valid. + */ +static DWORD GetShareModeFromSTGM(DWORD stgm) +{ + switch (STGM_SHARE_MODE(stgm)) + { + case 0: + assert(stgm & STGM_TRANSACTED); + /* fall-through */ + case STGM_SHARE_DENY_NONE: + return FILE_SHARE_READ | FILE_SHARE_WRITE; + case STGM_SHARE_DENY_READ: + return FILE_SHARE_WRITE; + case STGM_SHARE_DENY_WRITE: + case STGM_SHARE_EXCLUSIVE: + return FILE_SHARE_READ; + } + ERR("Invalid share mode!\n"); + assert(0); + return 0; +} + +/************************************************************************ + * GetAccessModeFromSTGM + * + * This method will return an access mode flag from a STGM value. + * The STGM value is assumed valid. + */ +static DWORD GetAccessModeFromSTGM(DWORD stgm) +{ + switch (STGM_ACCESS_MODE(stgm)) + { + case STGM_READ: + return GENERIC_READ; + case STGM_WRITE: + case STGM_READWRITE: + return GENERIC_READ | GENERIC_WRITE; + } + ERR("Invalid access mode!\n"); + assert(0); + return 0; +} + +/************************************************************************ + * GetCreationModeFromSTGM + * + * This method will return a creation mode flag from a STGM value. + * The STGM value is assumed valid. + */ +static DWORD GetCreationModeFromSTGM(DWORD stgm) +{ + switch(STGM_CREATE_MODE(stgm)) + { + case STGM_CREATE: + return CREATE_ALWAYS; + case STGM_CONVERT: + FIXME("STGM_CONVERT not implemented!\n"); + return CREATE_NEW; + case STGM_FAILIFTHERE: + return CREATE_NEW; + } + ERR("Invalid create mode!\n"); + assert(0); + return 0; +} /*********************************************************************** * WriteClassStg [coml2.@] @@ -238,3 +8761,421 @@ HRESULT WINAPI StgCreatePropSetStg(IStorage *pstg, DWORD reserved, IPropertySetS return IStorage_QueryInterface(pstg, &IID_IPropertySetStorage, (void**)propset); } + +/****************************************************************************** + * StgCreateDocfile [OLE32.@] + * Creates a new compound file storage object + * + * PARAMS + * pwcsName [ I] Unicode string with filename (can be relative or NULL) + * grfMode [ I] Access mode for opening the new storage object (see STGM_ constants) + * reserved [ ?] unused?, usually 0 + * ppstgOpen [IO] A pointer to IStorage pointer to the new object + * + * RETURNS + * S_OK if the file was successfully created + * some STG_E_ value if error + * NOTES + * if pwcsName is NULL, create file with new unique name + * the function can returns + * STG_S_CONVERTED if the specified file was successfully converted to storage format + * (unrealized now) + */ +HRESULT WINAPI StgCreateDocfile( + LPCOLESTR pwcsName, + DWORD grfMode, + DWORD reserved, + IStorage **ppstgOpen) +{ + STGOPTIONS stgoptions = {1, 0, 512}; + + TRACE("%s, %#lx, %ld, %p.\n", debugstr_w(pwcsName), grfMode, reserved, ppstgOpen); + + if (ppstgOpen == 0) + return STG_E_INVALIDPOINTER; + if (reserved != 0) + return STG_E_INVALIDPARAMETER; + + return create_storagefile(pwcsName, grfMode, 0, &stgoptions, &IID_IStorage, (void**)ppstgOpen); +} + +/****************************************************************************** + * StgCreateStorageEx [OLE32.@] + */ +HRESULT WINAPI StgCreateStorageEx(const WCHAR* pwcsName, DWORD grfMode, DWORD stgfmt, DWORD grfAttrs, STGOPTIONS* pStgOptions, void* reserved, REFIID riid, void** ppObjectOpen) +{ + TRACE("%s, %#lx, %#lx, %#lx, %p, %p, %p, %p.\n", debugstr_w(pwcsName), + grfMode, stgfmt, grfAttrs, pStgOptions, reserved, riid, ppObjectOpen); + + if (stgfmt != STGFMT_FILE && grfAttrs != 0) + { + ERR("grfAttrs must be 0 if stgfmt != STGFMT_FILE\n"); + return STG_E_INVALIDPARAMETER; + } + + if (stgfmt == STGFMT_FILE && grfAttrs != 0 && grfAttrs != FILE_FLAG_NO_BUFFERING) + { + ERR("grfAttrs must be 0 or FILE_FLAG_NO_BUFFERING if stgfmt == STGFMT_FILE\n"); + return STG_E_INVALIDPARAMETER; + } + + if (stgfmt == STGFMT_FILE) + { + ERR("Cannot use STGFMT_FILE - this is NTFS only\n"); + return STG_E_INVALIDPARAMETER; + } + + if (stgfmt == STGFMT_STORAGE || stgfmt == STGFMT_DOCFILE) + { + STGOPTIONS defaultOptions = {1, 0, 512}; + + if (!pStgOptions) pStgOptions = &defaultOptions; + return create_storagefile(pwcsName, grfMode, grfAttrs, pStgOptions, riid, ppObjectOpen); + } + + + ERR("Invalid stgfmt argument\n"); + return STG_E_INVALIDPARAMETER; +} + +/****************************************************************************** + * StgOpenStorageEx [OLE32.@] + */ +HRESULT WINAPI StgOpenStorageEx(const WCHAR* pwcsName, DWORD grfMode, DWORD stgfmt, DWORD grfAttrs, STGOPTIONS* pStgOptions, void* reserved, REFIID riid, void** ppObjectOpen) +{ + TRACE("%s, %#lx, %#lx, %#lx, %p, %p, %p, %p.\n", debugstr_w(pwcsName), + grfMode, stgfmt, grfAttrs, pStgOptions, reserved, riid, ppObjectOpen); + + if (stgfmt != STGFMT_DOCFILE && grfAttrs != 0) + { + ERR("grfAttrs must be 0 if stgfmt != STGFMT_DOCFILE\n"); + return STG_E_INVALIDPARAMETER; + } + + switch (stgfmt) + { + case STGFMT_FILE: + ERR("Cannot use STGFMT_FILE - this is NTFS only\n"); + return STG_E_INVALIDPARAMETER; + + case STGFMT_STORAGE: + break; + + case STGFMT_DOCFILE: + if (grfAttrs && grfAttrs != FILE_FLAG_NO_BUFFERING) + { + ERR("grfAttrs must be 0 or FILE_FLAG_NO_BUFFERING if stgfmt == STGFMT_DOCFILE\n"); + return STG_E_INVALIDPARAMETER; + } + FIXME("Stub: calling StgOpenStorage, but ignoring pStgOptions and grfAttrs\n"); + break; + + case STGFMT_ANY: + WARN("STGFMT_ANY assuming storage\n"); + break; + + default: + return STG_E_INVALIDPARAMETER; + } + + return StgOpenStorage(pwcsName, NULL, grfMode, NULL, 0, (IStorage **)ppObjectOpen); +} + + +/****************************************************************************** + * StgOpenStorage [OLE32.@] + */ +HRESULT WINAPI StgOpenStorage( + const OLECHAR *pwcsName, + IStorage *pstgPriority, + DWORD grfMode, + SNB snbExclude, + DWORD reserved, + IStorage **ppstgOpen) +{ + StorageBaseImpl* newStorage = 0; + HRESULT hr = S_OK; + HANDLE hFile = 0; + DWORD shareMode; + DWORD accessMode; + LPWSTR temp_name = NULL; + + TRACE("%s, %p, %#lx, %p, %ld, %p.\n", debugstr_w(pwcsName), pstgPriority, grfMode, + snbExclude, reserved, ppstgOpen); + + if (pstgPriority) + { + /* FIXME: Copy ILockBytes instead? But currently for STGM_PRIORITY it'll be read-only. */ + hr = StorageBaseImpl_GetFilename((StorageBaseImpl*)pstgPriority, &temp_name); + if (FAILED(hr)) goto end; + pwcsName = temp_name; + TRACE("using filename %s\n", debugstr_w(temp_name)); + } + + if (pwcsName == 0) + { + hr = STG_E_INVALIDNAME; + goto end; + } + + if (ppstgOpen == 0) + { + hr = STG_E_INVALIDPOINTER; + goto end; + } + + if (reserved) + { + hr = STG_E_INVALIDPARAMETER; + goto end; + } + + if (grfMode & STGM_PRIORITY) + { + if (grfMode & (STGM_TRANSACTED|STGM_SIMPLE|STGM_NOSCRATCH|STGM_NOSNAPSHOT)) + return STG_E_INVALIDFLAG; + if (grfMode & STGM_DELETEONRELEASE) + return STG_E_INVALIDFUNCTION; + if(STGM_ACCESS_MODE(grfMode) != STGM_READ) + return STG_E_INVALIDFLAG; + grfMode &= ~0xf0; /* remove the existing sharing mode */ + grfMode |= STGM_SHARE_DENY_NONE; + } + + /* + * Validate the sharing mode + */ + if (grfMode & STGM_DIRECT_SWMR) + { + if ((STGM_SHARE_MODE(grfMode) != STGM_SHARE_DENY_WRITE) && + (STGM_SHARE_MODE(grfMode) != STGM_SHARE_DENY_NONE)) + { + hr = STG_E_INVALIDFLAG; + goto end; + } + } + else if (!(grfMode & (STGM_TRANSACTED|STGM_PRIORITY))) + switch(STGM_SHARE_MODE(grfMode)) + { + case STGM_SHARE_EXCLUSIVE: + case STGM_SHARE_DENY_WRITE: + break; + default: + hr = STG_E_INVALIDFLAG; + goto end; + } + + if ( FAILED( validateSTGM(grfMode) ) || + (grfMode&STGM_CREATE)) + { + hr = STG_E_INVALIDFLAG; + goto end; + } + + /* shared reading requires transacted or single writer mode */ + if( STGM_SHARE_MODE(grfMode) == STGM_SHARE_DENY_WRITE && + STGM_ACCESS_MODE(grfMode) == STGM_READWRITE && + !(grfMode & STGM_TRANSACTED) && !(grfMode & STGM_DIRECT_SWMR)) + { + hr = STG_E_INVALIDFLAG; + goto end; + } + + /* + * Interpret the STGM value grfMode + */ + shareMode = GetShareModeFromSTGM(grfMode); + accessMode = GetAccessModeFromSTGM(grfMode); + + *ppstgOpen = 0; + + hFile = CreateFileW( pwcsName, + accessMode, + shareMode, + NULL, + OPEN_EXISTING, + FILE_ATTRIBUTE_NORMAL | FILE_FLAG_RANDOM_ACCESS, + 0); + + if (hFile==INVALID_HANDLE_VALUE) + { + DWORD last_error = GetLastError(); + + hr = E_FAIL; + + switch (last_error) + { + case ERROR_FILE_NOT_FOUND: + hr = STG_E_FILENOTFOUND; + break; + + case ERROR_PATH_NOT_FOUND: + hr = STG_E_PATHNOTFOUND; + break; + + case ERROR_ACCESS_DENIED: + case ERROR_WRITE_PROTECT: + hr = STG_E_ACCESSDENIED; + break; + + case ERROR_SHARING_VIOLATION: + hr = STG_E_SHAREVIOLATION; + break; + + default: + hr = E_FAIL; + } + + goto end; + } + + /* + * Refuse to open the file if it's too small to be a structured storage file + * FIXME: verify the file when reading instead of here + */ + if (GetFileSize(hFile, NULL) < HEADER_SIZE) + { + CloseHandle(hFile); + hr = STG_E_FILEALREADYEXISTS; + goto end; + } + + /* + * Allocate and initialize the new IStorage object. + */ + hr = Storage_Construct( + hFile, + pwcsName, + NULL, + grfMode, + TRUE, + FALSE, + 512, + &newStorage); + + if (FAILED(hr)) + { + /* + * According to the docs if the file is not a storage, return STG_E_FILEALREADYEXISTS + */ + if(hr == STG_E_INVALIDHEADER) + hr = STG_E_FILEALREADYEXISTS; + goto end; + } + + *ppstgOpen = &newStorage->IStorage_iface; + +end: + CoTaskMemFree(temp_name); + if (pstgPriority) IStorage_Release(pstgPriority); + TRACE("<-- %#lx, IStorage %p\n", hr, ppstgOpen ? *ppstgOpen : NULL); + return hr; +} + +/****************************************************************************** + * StgCreateDocfileOnILockBytes [OLE32.@] + */ +HRESULT WINAPI StgCreateDocfileOnILockBytes( + ILockBytes *plkbyt, + DWORD grfMode, + DWORD reserved, + IStorage** ppstgOpen) +{ + StorageBaseImpl* newStorage = 0; + HRESULT hr = S_OK; + + if ((ppstgOpen == 0) || (plkbyt == 0)) + return STG_E_INVALIDPOINTER; + + /* + * Allocate and initialize the new IStorage object. + */ + hr = Storage_Construct( + 0, + 0, + plkbyt, + grfMode, + FALSE, + TRUE, + 512, + &newStorage); + + if (FAILED(hr)) + { + return hr; + } + + *ppstgOpen = &newStorage->IStorage_iface; + + return hr; +} + +/****************************************************************************** + * StgOpenStorageOnILockBytes [OLE32.@] + */ +HRESULT WINAPI StgOpenStorageOnILockBytes( + ILockBytes *plkbyt, + IStorage *pstgPriority, + DWORD grfMode, + SNB snbExclude, + DWORD reserved, + IStorage **ppstgOpen) +{ + StorageBaseImpl* newStorage = 0; + HRESULT hr = S_OK; + + if ((plkbyt == 0) || (ppstgOpen == 0)) + return STG_E_INVALIDPOINTER; + + if ( FAILED( validateSTGM(grfMode) )) + return STG_E_INVALIDFLAG; + + *ppstgOpen = 0; + + /* + * Allocate and initialize the new IStorage object. + */ + hr = Storage_Construct( + 0, + 0, + plkbyt, + grfMode, + FALSE, + FALSE, + 512, + &newStorage); + + if (FAILED(hr)) + { + return hr; + } + + *ppstgOpen = &newStorage->IStorage_iface; + + return hr; +} + +/****************************************************************************** + * StgSetTimes [ole32.@] + * StgSetTimes [OLE32.@] + * + * + */ +HRESULT WINAPI StgSetTimes(OLECHAR const *str, FILETIME const *pctime, + FILETIME const *patime, FILETIME const *pmtime) +{ + IStorage *stg = NULL; + HRESULT r; + + TRACE("%s %p %p %p\n", debugstr_w(str), pctime, patime, pmtime); + + r = StgOpenStorage(str, NULL, STGM_READWRITE | STGM_SHARE_DENY_WRITE, + 0, 0, &stg); + if( SUCCEEDED(r) ) + { + r = IStorage_SetElementTimes(stg, NULL, pctime, patime, pmtime); + IStorage_Release(stg); + } + + return r; +} diff --git a/dlls/ole32/storage32.h b/dlls/coml2/storage32.h similarity index 98% rename from dlls/ole32/storage32.h rename to dlls/coml2/storage32.h index dd4b89aceec..b1b50420540 100644 --- a/dlls/ole32/storage32.h +++ b/dlls/coml2/storage32.h @@ -159,13 +159,6 @@ struct DirEntry HRESULT FileLockBytesImpl_Construct(HANDLE hFile, DWORD openFlags, LPCWSTR pwcsName, ILockBytes **pLockBytes); -/************************************************************************* - * Ole Convert support - */ - -HRESULT STORAGE_CreateOleStream(IStorage*, DWORD); -HRESULT OLECONVERT_CreateCompObjStream(LPSTORAGE pStorage, LPCSTR strOleTypeName); - enum swmr_mode { SWMR_None, diff --git a/dlls/ole32/Makefile.in b/dlls/ole32/Makefile.in index ee0fcc41f7d..7a2f08f9d17 100644 --- a/dlls/ole32/Makefile.in +++ b/dlls/ole32/Makefile.in @@ -15,11 +15,9 @@ SOURCES = \ datacache.c \ dcom.idl \ defaulthandler.c \ - dictionary.c \ drag_copy.svg \ drag_link.svg \ drag_move.svg \ - filelockbytes.c \ filemoniker.c \ ftmarshal.c \ git.c \ @@ -38,8 +36,6 @@ SOURCES = \ oleobj.c \ oleproxy.c \ pointermoniker.c \ - stg_prop.c \ - stg_stream.c \ storage32.c \ usrmarshal.c diff --git a/dlls/ole32/clipboard.c b/dlls/ole32/clipboard.c index c54608985fb..302805d0c75 100644 --- a/dlls/ole32/clipboard.c +++ b/dlls/ole32/clipboard.c @@ -74,12 +74,13 @@ #include "wine/debug.h" #include "olestd.h" -#include "storage32.h" - #include "compobj_private.h" WINE_DEFAULT_DEBUG_CHANNEL(ole); +HRESULT STORAGE_CreateOleStream(IStorage*, DWORD); +HRESULT OLECONVERT_CreateCompObjStream(LPSTORAGE pStorage, LPCSTR strOleTypeName); + /* Structure of 'Ole Private Data' clipboard format */ typedef struct { diff --git a/dlls/ole32/defaulthandler.c b/dlls/ole32/defaulthandler.c index b69a054b572..3be31c39a81 100644 --- a/dlls/ole32/defaulthandler.c +++ b/dlls/ole32/defaulthandler.c @@ -58,7 +58,6 @@ #include "ole2.h" #include "compobj_private.h" -#include "storage32.h" #include "wine/debug.h" @@ -78,6 +77,8 @@ enum object_state object_state_deferred_close }; +HRESULT STORAGE_CreateOleStream(IStorage*, DWORD); + /**************************************************************************** * DefaultHandler * diff --git a/dlls/ole32/ole32.spec b/dlls/ole32/ole32.spec index e9982036eeb..e29c6f72dfb 100644 --- a/dlls/ole32/ole32.spec +++ b/dlls/ole32/ole32.spec @@ -281,7 +281,7 @@ @ stdcall StgOpenStorage(wstr ptr long ptr long ptr) @ stdcall StgOpenStorageEx(wstr long long long ptr ptr ptr ptr) @ stdcall StgOpenStorageOnILockBytes(ptr ptr long ptr long ptr) -@ stdcall StgSetTimes(wstr ptr ptr ptr ) +@ stdcall StgSetTimes(wstr ptr ptr ptr) @ stdcall StringFromCLSID(ptr ptr) combase.StringFromCLSID @ stdcall StringFromGUID2(ptr ptr long) combase.StringFromGUID2 @ stdcall StringFromIID(ptr ptr) combase.StringFromIID diff --git a/dlls/ole32/stg_prop.c b/dlls/ole32/stg_prop.c deleted file mode 100644 index 66b12f3ae9e..00000000000 --- a/dlls/ole32/stg_prop.c +++ /dev/null @@ -1,3136 +0,0 @@ -/* - * Compound Storage (32 bit version) - * Storage implementation - * - * This file contains the compound file implementation - * of the storage interface. - * - * Copyright 1999 Francis Beaudet - * Copyright 1999 Sylvain St-Germain - * Copyright 1999 Thuy Nguyen - * Copyright 2005 Mike McCormack - * Copyright 2005 Juan Lang - * Copyright 2006 Mike McCormack - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA - * - * TODO: - * - I don't honor the maximum property set size. - * - Certain bogus files could result in reading past the end of a buffer. - * - Mac-generated files won't be read correctly, even if they're little - * endian, because I disregard whether the generator was a Mac. This means - * strings will probably be munged (as I don't understand Mac scripts.) - * - Not all PROPVARIANT types are supported. - * - User defined properties are not supported, see comment in - * PropertyStorage_ReadFromStream - */ - -#include <assert.h> -#include <stdarg.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#define COBJMACROS -#include "windef.h" -#include "winbase.h" -#include "winnls.h" -#include "winuser.h" -#include "wine/asm.h" -#include "wine/debug.h" -#include "wine/heap.h" -#include "dictionary.h" -#include "storage32.h" -#include "oleauto.h" - -WINE_DEFAULT_DEBUG_CHANNEL(storage); - -static inline StorageImpl *impl_from_IPropertySetStorage( IPropertySetStorage *iface ) -{ - return CONTAINING_RECORD(iface, StorageImpl, base.IPropertySetStorage_iface); -} - -/* These are documented in MSDN, - * but they don't seem to be in any header file. - */ -#define PROPSETHDR_BYTEORDER_MAGIC 0xfffe -#define PROPSETHDR_OSVER_KIND_WIN16 0 -#define PROPSETHDR_OSVER_KIND_MAC 1 -#define PROPSETHDR_OSVER_KIND_WIN32 2 - -#define CP_UNICODE 1200 - -#define MAX_VERSION_0_PROP_NAME_LENGTH 256 - -#define CFTAG_WINDOWS (-1L) -#define CFTAG_MACINTOSH (-2L) -#define CFTAG_FMTID (-3L) -#define CFTAG_NODATA 0L - -#define ALIGNED_LENGTH(_Len, _Align) (((_Len)+(_Align))&~(_Align)) - -typedef struct tagPROPERTYSETHEADER -{ - WORD wByteOrder; /* always 0xfffe */ - WORD wFormat; /* can be zero or one */ - DWORD dwOSVer; /* OS version of originating system */ - CLSID clsid; /* application CLSID */ - DWORD reserved; /* always 1 */ -} PROPERTYSETHEADER; - -typedef struct tagFORMATIDOFFSET -{ - FMTID fmtid; - DWORD dwOffset; /* from beginning of stream */ -} FORMATIDOFFSET; - -typedef struct tagPROPERTYSECTIONHEADER -{ - DWORD cbSection; - DWORD cProperties; -} PROPERTYSECTIONHEADER; - -typedef struct tagPROPERTYIDOFFSET -{ - DWORD propid; - DWORD dwOffset; /* from beginning of section */ -} PROPERTYIDOFFSET; - -typedef struct tagPropertyStorage_impl PropertyStorage_impl; - -/* Initializes the property storage from the stream (and undoes any uncommitted - * changes in the process.) Returns an error if there is an error reading or - * if the stream format doesn't match what's expected. - */ -static HRESULT PropertyStorage_ReadFromStream(PropertyStorage_impl *); - -static HRESULT PropertyStorage_WriteToStream(PropertyStorage_impl *); - -/* Creates the dictionaries used by the property storage. If successful, all - * the dictionaries have been created. If failed, none has been. (This makes - * it a bit easier to deal with destroying them.) - */ -static HRESULT PropertyStorage_CreateDictionaries(PropertyStorage_impl *); - -static void PropertyStorage_DestroyDictionaries(PropertyStorage_impl *); - -/* Copies from propvar to prop. If propvar's type is VT_LPSTR, copies the - * string using PropertyStorage_StringCopy. - */ -static HRESULT PropertyStorage_PropVariantCopy(PROPVARIANT *prop, - const PROPVARIANT *propvar, UINT targetCP, UINT srcCP); - -/* Copies the string src, which is encoded using code page srcCP, and returns - * it in *dst, in the code page specified by targetCP. The returned string is - * allocated using CoTaskMemAlloc. - * If srcCP is CP_UNICODE, src is in fact an LPCWSTR. Similarly, if targetCP - * is CP_UNICODE, the returned string is in fact an LPWSTR. - * Returns S_OK on success, something else on failure. - */ -static HRESULT PropertyStorage_StringCopy(LPCSTR src, UINT srcCP, LPSTR *dst, - UINT targetCP); - -static const IPropertyStorageVtbl IPropertyStorage_Vtbl; - -/*********************************************************************** - * Implementation of IPropertyStorage - */ -struct tagPropertyStorage_impl -{ - IPropertyStorage IPropertyStorage_iface; - LONG ref; - CRITICAL_SECTION cs; - IStream *stm; - BOOL dirty; - FMTID fmtid; - CLSID clsid; - WORD format; - DWORD originatorOS; - DWORD grfFlags; - DWORD grfMode; - UINT codePage; - LCID locale; - PROPID highestProp; - struct dictionary *name_to_propid; - struct dictionary *propid_to_name; - struct dictionary *propid_to_prop; -}; - -static inline PropertyStorage_impl *impl_from_IPropertyStorage(IPropertyStorage *iface) -{ - return CONTAINING_RECORD(iface, PropertyStorage_impl, IPropertyStorage_iface); -} - -struct enum_stat_prop_stg -{ - IEnumSTATPROPSTG IEnumSTATPROPSTG_iface; - LONG refcount; - PropertyStorage_impl *storage; - STATPROPSTG *stats; - size_t current; - size_t count; -}; - -static struct enum_stat_prop_stg *impl_from_IEnumSTATPROPSTG(IEnumSTATPROPSTG *iface) -{ - return CONTAINING_RECORD(iface, struct enum_stat_prop_stg, IEnumSTATPROPSTG_iface); -} - -static HRESULT WINAPI enum_stat_prop_stg_QueryInterface(IEnumSTATPROPSTG *iface, REFIID riid, void **obj) -{ - TRACE("%p, %s, %p.\n", iface, debugstr_guid(riid), obj); - - if (IsEqualIID(riid, &IID_IEnumSTATPROPSTG) || - IsEqualIID(riid, &IID_IUnknown)) - { - *obj = iface; - IEnumSTATPROPSTG_AddRef(iface); - return S_OK; - } - - WARN("Unsupported interface %s.\n", debugstr_guid(riid)); - return E_NOINTERFACE; -} - -static ULONG WINAPI enum_stat_prop_stg_AddRef(IEnumSTATPROPSTG *iface) -{ - struct enum_stat_prop_stg *penum = impl_from_IEnumSTATPROPSTG(iface); - LONG refcount = InterlockedIncrement(&penum->refcount); - - TRACE("%p, refcount %lu.\n", iface, refcount); - - return refcount; -} - -static ULONG WINAPI enum_stat_prop_stg_Release(IEnumSTATPROPSTG *iface) -{ - struct enum_stat_prop_stg *penum = impl_from_IEnumSTATPROPSTG(iface); - LONG refcount = InterlockedDecrement(&penum->refcount); - - TRACE("%p, refcount %lu.\n", iface, refcount); - - if (!refcount) - { - IPropertyStorage_Release(&penum->storage->IPropertyStorage_iface); - heap_free(penum->stats); - heap_free(penum); - } - - return refcount; -} - -static HRESULT WINAPI enum_stat_prop_stg_Next(IEnumSTATPROPSTG *iface, ULONG celt, STATPROPSTG *ret, ULONG *fetched) -{ - struct enum_stat_prop_stg *penum = impl_from_IEnumSTATPROPSTG(iface); - ULONG count = 0; - WCHAR *name; - - TRACE("%p, %lu, %p, %p.\n", iface, celt, ret, fetched); - - if (penum->current == ~0u) - penum->current = 0; - - while (count < celt && penum->current < penum->count) - { - *ret = penum->stats[penum->current++]; - - if (dictionary_find(penum->storage->propid_to_name, UlongToPtr(ret->propid), (void **)&name)) - { - SIZE_T size = (lstrlenW(name) + 1) * sizeof(WCHAR); - ret->lpwstrName = CoTaskMemAlloc(size); - if (ret->lpwstrName) - memcpy(ret->lpwstrName, name, size); - } - ret++; - count++; - } - - if (fetched) - *fetched = count; - - return count < celt ? S_FALSE : S_OK; -} - -static HRESULT WINAPI enum_stat_prop_stg_Skip(IEnumSTATPROPSTG *iface, ULONG celt) -{ - FIXME("%p, %lu.\n", iface, celt); - - return S_OK; -} - -static HRESULT WINAPI enum_stat_prop_stg_Reset(IEnumSTATPROPSTG *iface) -{ - struct enum_stat_prop_stg *penum = impl_from_IEnumSTATPROPSTG(iface); - - TRACE("%p.\n", iface); - - penum->current = ~0u; - - return S_OK; -} - -static HRESULT WINAPI enum_stat_prop_stg_Clone(IEnumSTATPROPSTG *iface, IEnumSTATPROPSTG **ppenum) -{ - FIXME("%p, %p.\n", iface, ppenum); - - return E_NOTIMPL; -} - -static const IEnumSTATPROPSTGVtbl enum_stat_prop_stg_vtbl = -{ - enum_stat_prop_stg_QueryInterface, - enum_stat_prop_stg_AddRef, - enum_stat_prop_stg_Release, - enum_stat_prop_stg_Next, - enum_stat_prop_stg_Skip, - enum_stat_prop_stg_Reset, - enum_stat_prop_stg_Clone, -}; - -static BOOL prop_enum_stat(const void *k, const void *v, void *extra, void *arg) -{ - struct enum_stat_prop_stg *stg = arg; - PROPID propid = PtrToUlong(k); - const PROPVARIANT *prop = v; - STATPROPSTG *dest; - - dest = &stg->stats[stg->count]; - - dest->lpwstrName = NULL; - dest->propid = propid; - dest->vt = prop->vt; - stg->count++; - - return TRUE; -} - -static BOOL prop_enum_stat_count(const void *k, const void *v, void *extra, void *arg) -{ - DWORD *count = arg; - - *count += 1; - - return TRUE; -} - -static HRESULT create_enum_stat_prop_stg(PropertyStorage_impl *storage, IEnumSTATPROPSTG **ret) -{ - struct enum_stat_prop_stg *enum_obj; - DWORD count; - - enum_obj = heap_alloc_zero(sizeof(*enum_obj)); - if (!enum_obj) - return E_OUTOFMEMORY; - - enum_obj->IEnumSTATPROPSTG_iface.lpVtbl = &enum_stat_prop_stg_vtbl; - enum_obj->refcount = 1; - enum_obj->storage = storage; - IPropertyStorage_AddRef(&storage->IPropertyStorage_iface); - - count = 0; - dictionary_enumerate(storage->propid_to_prop, prop_enum_stat_count, &count); - - if (count) - { - if (!(enum_obj->stats = heap_alloc(sizeof(*enum_obj->stats) * count))) - { - IEnumSTATPROPSTG_Release(&enum_obj->IEnumSTATPROPSTG_iface); - return E_OUTOFMEMORY; - } - - dictionary_enumerate(storage->propid_to_prop, prop_enum_stat, enum_obj); - } - - *ret = &enum_obj->IEnumSTATPROPSTG_iface; - - return S_OK; -} - -/************************************************************************ - * IPropertyStorage_fnQueryInterface (IPropertyStorage) - */ -static HRESULT WINAPI IPropertyStorage_fnQueryInterface( - IPropertyStorage *iface, - REFIID riid, - void** ppvObject) -{ - PropertyStorage_impl *This = impl_from_IPropertyStorage(iface); - - TRACE("(%p, %s, %p)\n", This, debugstr_guid(riid), ppvObject); - - if (!ppvObject) - return E_INVALIDARG; - - *ppvObject = 0; - - if (IsEqualGUID(&IID_IUnknown, riid) || - IsEqualGUID(&IID_IPropertyStorage, riid)) - { - IPropertyStorage_AddRef(iface); - *ppvObject = iface; - return S_OK; - } - - return E_NOINTERFACE; -} - -/************************************************************************ - * IPropertyStorage_fnAddRef (IPropertyStorage) - */ -static ULONG WINAPI IPropertyStorage_fnAddRef( - IPropertyStorage *iface) -{ - PropertyStorage_impl *This = impl_from_IPropertyStorage(iface); - return InterlockedIncrement(&This->ref); -} - -/************************************************************************ - * IPropertyStorage_fnRelease (IPropertyStorage) - */ -static ULONG WINAPI IPropertyStorage_fnRelease( - IPropertyStorage *iface) -{ - PropertyStorage_impl *This = impl_from_IPropertyStorage(iface); - ULONG ref; - - ref = InterlockedDecrement(&This->ref); - if (ref == 0) - { - TRACE("Destroying %p\n", This); - if (This->dirty) - IPropertyStorage_Commit(iface, STGC_DEFAULT); - IStream_Release(This->stm); - This->cs.DebugInfo->Spare[0] = 0; - DeleteCriticalSection(&This->cs); - PropertyStorage_DestroyDictionaries(This); - HeapFree(GetProcessHeap(), 0, This); - } - return ref; -} - -static PROPVARIANT *PropertyStorage_FindProperty(PropertyStorage_impl *This, - DWORD propid) -{ - PROPVARIANT *ret = NULL; - - dictionary_find(This->propid_to_prop, UlongToPtr(propid), (void **)&ret); - TRACE("returning %p\n", ret); - return ret; -} - -/* Returns NULL if name is NULL. */ -static PROPVARIANT *PropertyStorage_FindPropertyByName( - PropertyStorage_impl *This, LPCWSTR name) -{ - PROPVARIANT *ret = NULL; - void *propid; - - if (!name) - return NULL; - if (This->codePage == CP_UNICODE) - { - if (dictionary_find(This->name_to_propid, name, &propid)) - ret = PropertyStorage_FindProperty(This, PtrToUlong(propid)); - } - else - { - LPSTR ansiName; - HRESULT hr = PropertyStorage_StringCopy((LPCSTR)name, CP_UNICODE, - &ansiName, This->codePage); - - if (SUCCEEDED(hr)) - { - if (dictionary_find(This->name_to_propid, ansiName, &propid)) - ret = PropertyStorage_FindProperty(This, PtrToUlong(propid)); - CoTaskMemFree(ansiName); - } - } - TRACE("returning %p\n", ret); - return ret; -} - -static LPWSTR PropertyStorage_FindPropertyNameById(PropertyStorage_impl *This, - DWORD propid) -{ - LPWSTR ret = NULL; - - dictionary_find(This->propid_to_name, UlongToPtr(propid), (void **)&ret); - TRACE("returning %p\n", ret); - return ret; -} - -/************************************************************************ - * IPropertyStorage_fnReadMultiple (IPropertyStorage) - */ -static HRESULT WINAPI IPropertyStorage_fnReadMultiple( - IPropertyStorage* iface, - ULONG cpspec, - const PROPSPEC rgpspec[], - PROPVARIANT rgpropvar[]) -{ - PropertyStorage_impl *This = impl_from_IPropertyStorage(iface); - HRESULT hr = S_OK; - ULONG i; - - TRACE("%p, %lu, %p, %p\n", iface, cpspec, rgpspec, rgpropvar); - - if (!cpspec) - return S_FALSE; - if (!rgpspec || !rgpropvar) - return E_INVALIDARG; - EnterCriticalSection(&This->cs); - for (i = 0; i < cpspec; i++) - { - PropVariantInit(&rgpropvar[i]); - if (rgpspec[i].ulKind == PRSPEC_LPWSTR) - { - PROPVARIANT *prop = PropertyStorage_FindPropertyByName(This, - rgpspec[i].lpwstr); - - if (prop) - PropertyStorage_PropVariantCopy(&rgpropvar[i], prop, GetACP(), - This->codePage); - } - else - { - switch (rgpspec[i].propid) - { - case PID_CODEPAGE: - rgpropvar[i].vt = VT_I2; - rgpropvar[i].iVal = This->codePage; - break; - case PID_LOCALE: - rgpropvar[i].vt = VT_I4; - rgpropvar[i].lVal = This->locale; - break; - default: - { - PROPVARIANT *prop = PropertyStorage_FindProperty(This, - rgpspec[i].propid); - - if (prop) - PropertyStorage_PropVariantCopy(&rgpropvar[i], prop, - GetACP(), This->codePage); - else - hr = S_FALSE; - } - } - } - } - LeaveCriticalSection(&This->cs); - return hr; -} - -static HRESULT PropertyStorage_StringCopy(LPCSTR src, UINT srcCP, LPSTR *dst, UINT dstCP) -{ - HRESULT hr = S_OK; - int len; - - TRACE("%s, %p, %d, %d\n", - srcCP == CP_UNICODE ? debugstr_w((LPCWSTR)src) : debugstr_a(src), dst, - dstCP, srcCP); - assert(src); - assert(dst); - *dst = NULL; - if (dstCP == srcCP) - { - size_t len; - - if (dstCP == CP_UNICODE) - len = (lstrlenW((LPCWSTR)src) + 1) * sizeof(WCHAR); - else - len = strlen(src) + 1; - *dst = CoTaskMemAlloc(len); - if (!*dst) - hr = STG_E_INSUFFICIENTMEMORY; - else - memcpy(*dst, src, len); - } - else - { - if (dstCP == CP_UNICODE) - { - len = MultiByteToWideChar(srcCP, 0, src, -1, NULL, 0); - *dst = CoTaskMemAlloc(len * sizeof(WCHAR)); - if (!*dst) - hr = STG_E_INSUFFICIENTMEMORY; - else - MultiByteToWideChar(srcCP, 0, src, -1, (LPWSTR)*dst, len); - } - else - { - LPCWSTR wideStr = NULL; - LPWSTR wideStr_tmp = NULL; - - if (srcCP == CP_UNICODE) - wideStr = (LPCWSTR)src; - else - { - len = MultiByteToWideChar(srcCP, 0, src, -1, NULL, 0); - wideStr_tmp = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR)); - if (wideStr_tmp) - { - MultiByteToWideChar(srcCP, 0, src, -1, wideStr_tmp, len); - wideStr = wideStr_tmp; - } - else - hr = STG_E_INSUFFICIENTMEMORY; - } - if (SUCCEEDED(hr)) - { - len = WideCharToMultiByte(dstCP, 0, wideStr, -1, NULL, 0, - NULL, NULL); - *dst = CoTaskMemAlloc(len); - if (!*dst) - hr = STG_E_INSUFFICIENTMEMORY; - else - { - BOOL defCharUsed = FALSE; - - if (WideCharToMultiByte(dstCP, 0, wideStr, -1, *dst, len, - NULL, &defCharUsed) == 0 || defCharUsed) - { - CoTaskMemFree(*dst); - *dst = NULL; - hr = HRESULT_FROM_WIN32(ERROR_NO_UNICODE_TRANSLATION); - } - } - } - HeapFree(GetProcessHeap(), 0, wideStr_tmp); - } - } - TRACE("returning %#lx (%s)\n", hr, - dstCP == CP_UNICODE ? debugstr_w((LPCWSTR)*dst) : debugstr_a(*dst)); - return hr; -} - -static HRESULT PropertyStorage_PropVariantCopy(PROPVARIANT *prop, const PROPVARIANT *propvar, - UINT targetCP, UINT srcCP) -{ - HRESULT hr = S_OK; - - assert(prop); - assert(propvar); - - switch (propvar->vt) - { - case VT_LPSTR: - hr = PropertyStorage_StringCopy(propvar->pszVal, srcCP, &prop->pszVal, targetCP); - if (SUCCEEDED(hr)) - prop->vt = VT_LPSTR; - break; - case VT_BSTR: - if ((prop->bstrVal = SysAllocStringLen(propvar->bstrVal, SysStringLen(propvar->bstrVal)))) - prop->vt = VT_BSTR; - else - hr = E_OUTOFMEMORY; - break; - default: - hr = PropVariantCopy(prop, propvar); - } - - return hr; -} - -/* Stores the property with id propid and value propvar into this property - * storage. lcid is ignored if propvar's type is not VT_LPSTR. If propvar's - * type is VT_LPSTR, converts the string using lcid as the source code page - * and This->codePage as the target code page before storing. - * As a side effect, may change This->format to 1 if the type of propvar is - * a version 1-only property. - */ -static HRESULT PropertyStorage_StorePropWithId(PropertyStorage_impl *This, - PROPID propid, const PROPVARIANT *propvar, UINT cp) -{ - HRESULT hr = S_OK; - PROPVARIANT *prop = PropertyStorage_FindProperty(This, propid); - - assert(propvar); - if (propvar->vt & VT_BYREF || propvar->vt & VT_ARRAY) - This->format = 1; - switch (propvar->vt) - { - case VT_DECIMAL: - case VT_I1: - case VT_INT: - case VT_UINT: - case VT_VECTOR|VT_I1: - This->format = 1; - } - TRACE("Setting %#lx to type %d\n", propid, propvar->vt); - if (prop) - { - PropVariantClear(prop); - hr = PropertyStorage_PropVariantCopy(prop, propvar, This->codePage, cp); - } - else - { - prop = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, - sizeof(PROPVARIANT)); - if (prop) - { - hr = PropertyStorage_PropVariantCopy(prop, propvar, This->codePage, cp); - if (SUCCEEDED(hr)) - { - dictionary_insert(This->propid_to_prop, UlongToPtr(propid), prop); - if (propid > This->highestProp) - This->highestProp = propid; - } - else - HeapFree(GetProcessHeap(), 0, prop); - } - else - hr = STG_E_INSUFFICIENTMEMORY; - } - return hr; -} - -/* Adds the name srcName to the name dictionaries, mapped to property ID id. - * srcName is encoded in code page cp, and is converted to This->codePage. - * If cp is CP_UNICODE, srcName is actually a unicode string. - * As a side effect, may change This->format to 1 if srcName is too long for - * a version 0 property storage. - * Doesn't validate id. - */ -static HRESULT PropertyStorage_StoreNameWithId(PropertyStorage_impl *This, - LPCSTR srcName, UINT cp, PROPID id) -{ - LPSTR name; - HRESULT hr; - - assert(srcName); - - hr = PropertyStorage_StringCopy(srcName, cp, &name, This->codePage); - if (SUCCEEDED(hr)) - { - if (This->codePage == CP_UNICODE) - { - if (lstrlenW((LPWSTR)name) >= MAX_VERSION_0_PROP_NAME_LENGTH) - This->format = 1; - } - else - { - if (strlen(name) >= MAX_VERSION_0_PROP_NAME_LENGTH) - This->format = 1; - } - TRACE("Adding prop name %s, propid %ld\n", - This->codePage == CP_UNICODE ? debugstr_w((LPCWSTR)name) : - debugstr_a(name), id); - dictionary_insert(This->name_to_propid, name, UlongToPtr(id)); - dictionary_insert(This->propid_to_name, UlongToPtr(id), name); - } - return hr; -} - -/************************************************************************ - * IPropertyStorage_fnWriteMultiple (IPropertyStorage) - */ -static HRESULT WINAPI IPropertyStorage_fnWriteMultiple( - IPropertyStorage* iface, - ULONG cpspec, - const PROPSPEC rgpspec[], - const PROPVARIANT rgpropvar[], - PROPID propidNameFirst) -{ - PropertyStorage_impl *This = impl_from_IPropertyStorage(iface); - HRESULT hr = S_OK; - ULONG i; - - TRACE("%p, %lu, %p, %p.\n", iface, cpspec, rgpspec, rgpropvar); - - if (cpspec && (!rgpspec || !rgpropvar)) - return E_INVALIDARG; - if (!(This->grfMode & STGM_READWRITE)) - return STG_E_ACCESSDENIED; - EnterCriticalSection(&This->cs); - This->dirty = TRUE; - This->originatorOS = (DWORD)MAKELONG(LOWORD(GetVersion()), - PROPSETHDR_OSVER_KIND_WIN32) ; - for (i = 0; i < cpspec; i++) - { - if (rgpspec[i].ulKind == PRSPEC_LPWSTR) - { - PROPVARIANT *prop = PropertyStorage_FindPropertyByName(This, - rgpspec[i].lpwstr); - - if (prop) - PropVariantCopy(prop, &rgpropvar[i]); - else - { - /* Note that I don't do the special cases here that I do below, - * because naming the special PIDs isn't supported. - */ - if (propidNameFirst < PID_FIRST_USABLE || - propidNameFirst >= PID_MIN_READONLY) - hr = STG_E_INVALIDPARAMETER; - else - { - PROPID nextId = max(propidNameFirst, This->highestProp + 1); - - hr = PropertyStorage_StoreNameWithId(This, - (LPCSTR)rgpspec[i].lpwstr, CP_UNICODE, nextId); - if (SUCCEEDED(hr)) - hr = PropertyStorage_StorePropWithId(This, nextId, - &rgpropvar[i], GetACP()); - } - } - } - else - { - switch (rgpspec[i].propid) - { - case PID_DICTIONARY: - /* Can't set the dictionary */ - hr = STG_E_INVALIDPARAMETER; - break; - case PID_CODEPAGE: - /* Can only set the code page if nothing else has been set */ - if (dictionary_num_entries(This->propid_to_prop) == 0 && - rgpropvar[i].vt == VT_I2) - { - This->codePage = (USHORT)rgpropvar[i].iVal; - if (This->codePage == CP_UNICODE) - This->grfFlags &= ~PROPSETFLAG_ANSI; - else - This->grfFlags |= PROPSETFLAG_ANSI; - } - else - hr = STG_E_INVALIDPARAMETER; - break; - case PID_LOCALE: - /* Can only set the locale if nothing else has been set */ - if (dictionary_num_entries(This->propid_to_prop) == 0 && - rgpropvar[i].vt == VT_I4) - This->locale = rgpropvar[i].lVal; - else - hr = STG_E_INVALIDPARAMETER; - break; - case PID_ILLEGAL: - /* silently ignore like MSDN says */ - break; - default: - if (rgpspec[i].propid >= PID_MIN_READONLY) - hr = STG_E_INVALIDPARAMETER; - else - hr = PropertyStorage_StorePropWithId(This, - rgpspec[i].propid, &rgpropvar[i], GetACP()); - } - } - } - if (This->grfFlags & PROPSETFLAG_UNBUFFERED) - IPropertyStorage_Commit(iface, STGC_DEFAULT); - LeaveCriticalSection(&This->cs); - return hr; -} - -/************************************************************************ - * IPropertyStorage_fnDeleteMultiple (IPropertyStorage) - */ -static HRESULT WINAPI IPropertyStorage_fnDeleteMultiple( - IPropertyStorage* iface, - ULONG cpspec, - const PROPSPEC rgpspec[]) -{ - PropertyStorage_impl *This = impl_from_IPropertyStorage(iface); - ULONG i; - HRESULT hr; - - TRACE("%p, %ld, %p.\n", iface, cpspec, rgpspec); - - if (cpspec && !rgpspec) - return E_INVALIDARG; - if (!(This->grfMode & STGM_READWRITE)) - return STG_E_ACCESSDENIED; - hr = S_OK; - EnterCriticalSection(&This->cs); - This->dirty = TRUE; - for (i = 0; i < cpspec; i++) - { - if (rgpspec[i].ulKind == PRSPEC_LPWSTR) - { - void *propid; - - if (dictionary_find(This->name_to_propid, rgpspec[i].lpwstr, &propid)) - dictionary_remove(This->propid_to_prop, propid); - } - else - { - if (rgpspec[i].propid >= PID_FIRST_USABLE && - rgpspec[i].propid < PID_MIN_READONLY) - dictionary_remove(This->propid_to_prop, UlongToPtr(rgpspec[i].propid)); - else - hr = STG_E_INVALIDPARAMETER; - } - } - if (This->grfFlags & PROPSETFLAG_UNBUFFERED) - IPropertyStorage_Commit(iface, STGC_DEFAULT); - LeaveCriticalSection(&This->cs); - return hr; -} - -/************************************************************************ - * IPropertyStorage_fnReadPropertyNames (IPropertyStorage) - */ -static HRESULT WINAPI IPropertyStorage_fnReadPropertyNames( - IPropertyStorage* iface, - ULONG cpropid, - const PROPID rgpropid[], - LPOLESTR rglpwstrName[]) -{ - PropertyStorage_impl *This = impl_from_IPropertyStorage(iface); - ULONG i; - HRESULT hr = S_FALSE; - - TRACE("%p, %ld, %p, %p.\n", iface, cpropid, rgpropid, rglpwstrName); - - if (cpropid && (!rgpropid || !rglpwstrName)) - return E_INVALIDARG; - EnterCriticalSection(&This->cs); - for (i = 0; i < cpropid && SUCCEEDED(hr); i++) - { - LPWSTR name = PropertyStorage_FindPropertyNameById(This, rgpropid[i]); - - if (name) - { - size_t len = lstrlenW(name); - - hr = S_OK; - rglpwstrName[i] = CoTaskMemAlloc((len + 1) * sizeof(WCHAR)); - if (rglpwstrName[i]) - memcpy(rglpwstrName[i], name, (len + 1) * sizeof(WCHAR)); - else - hr = STG_E_INSUFFICIENTMEMORY; - } - else - rglpwstrName[i] = NULL; - } - LeaveCriticalSection(&This->cs); - return hr; -} - -/************************************************************************ - * IPropertyStorage_fnWritePropertyNames (IPropertyStorage) - */ -static HRESULT WINAPI IPropertyStorage_fnWritePropertyNames( - IPropertyStorage* iface, - ULONG cpropid, - const PROPID rgpropid[], - const LPOLESTR rglpwstrName[]) -{ - PropertyStorage_impl *This = impl_from_IPropertyStorage(iface); - ULONG i; - HRESULT hr; - - TRACE("%p, %lu, %p, %p.\n", iface, cpropid, rgpropid, rglpwstrName); - - if (cpropid && (!rgpropid || !rglpwstrName)) - return E_INVALIDARG; - if (!(This->grfMode & STGM_READWRITE)) - return STG_E_ACCESSDENIED; - hr = S_OK; - EnterCriticalSection(&This->cs); - This->dirty = TRUE; - for (i = 0; SUCCEEDED(hr) && i < cpropid; i++) - { - if (rgpropid[i] != PID_ILLEGAL) - hr = PropertyStorage_StoreNameWithId(This, (LPCSTR)rglpwstrName[i], - CP_UNICODE, rgpropid[i]); - } - if (This->grfFlags & PROPSETFLAG_UNBUFFERED) - IPropertyStorage_Commit(iface, STGC_DEFAULT); - LeaveCriticalSection(&This->cs); - return hr; -} - -/************************************************************************ - * IPropertyStorage_fnDeletePropertyNames (IPropertyStorage) - */ -static HRESULT WINAPI IPropertyStorage_fnDeletePropertyNames( - IPropertyStorage* iface, - ULONG cpropid, - const PROPID rgpropid[]) -{ - PropertyStorage_impl *This = impl_from_IPropertyStorage(iface); - ULONG i; - HRESULT hr; - - TRACE("%p, %ld, %p.\n", iface, cpropid, rgpropid); - - if (cpropid && !rgpropid) - return E_INVALIDARG; - if (!(This->grfMode & STGM_READWRITE)) - return STG_E_ACCESSDENIED; - hr = S_OK; - EnterCriticalSection(&This->cs); - This->dirty = TRUE; - for (i = 0; i < cpropid; i++) - { - LPWSTR name = NULL; - - if (dictionary_find(This->propid_to_name, UlongToPtr(rgpropid[i]), (void **)&name)) - { - dictionary_remove(This->propid_to_name, UlongToPtr(rgpropid[i])); - dictionary_remove(This->name_to_propid, name); - } - } - if (This->grfFlags & PROPSETFLAG_UNBUFFERED) - IPropertyStorage_Commit(iface, STGC_DEFAULT); - LeaveCriticalSection(&This->cs); - return hr; -} - -/************************************************************************ - * IPropertyStorage_fnCommit (IPropertyStorage) - */ -static HRESULT WINAPI IPropertyStorage_fnCommit( - IPropertyStorage* iface, - DWORD grfCommitFlags) -{ - PropertyStorage_impl *This = impl_from_IPropertyStorage(iface); - HRESULT hr; - - TRACE("%p, %#lx.\n", iface, grfCommitFlags); - - if (!(This->grfMode & STGM_READWRITE)) - return STG_E_ACCESSDENIED; - EnterCriticalSection(&This->cs); - if (This->dirty) - hr = PropertyStorage_WriteToStream(This); - else - hr = S_OK; - LeaveCriticalSection(&This->cs); - return hr; -} - -/************************************************************************ - * IPropertyStorage_fnRevert (IPropertyStorage) - */ -static HRESULT WINAPI IPropertyStorage_fnRevert( - IPropertyStorage* iface) -{ - HRESULT hr; - PropertyStorage_impl *This = impl_from_IPropertyStorage(iface); - - TRACE("%p\n", iface); - - EnterCriticalSection(&This->cs); - if (This->dirty) - { - PropertyStorage_DestroyDictionaries(This); - hr = PropertyStorage_CreateDictionaries(This); - if (SUCCEEDED(hr)) - hr = PropertyStorage_ReadFromStream(This); - } - else - hr = S_OK; - LeaveCriticalSection(&This->cs); - return hr; -} - -/************************************************************************ - * IPropertyStorage_fnEnum (IPropertyStorage) - */ -static HRESULT WINAPI IPropertyStorage_fnEnum(IPropertyStorage *iface, IEnumSTATPROPSTG **ppenum) -{ - PropertyStorage_impl *storage = impl_from_IPropertyStorage(iface); - - TRACE("%p, %p.\n", iface, ppenum); - - return create_enum_stat_prop_stg(storage, ppenum); -} - -/************************************************************************ - * IPropertyStorage_fnSetTimes (IPropertyStorage) - */ -static HRESULT WINAPI IPropertyStorage_fnSetTimes( - IPropertyStorage* iface, - const FILETIME* pctime, - const FILETIME* patime, - const FILETIME* pmtime) -{ - FIXME("\n"); - return E_NOTIMPL; -} - -/************************************************************************ - * IPropertyStorage_fnSetClass (IPropertyStorage) - */ -static HRESULT WINAPI IPropertyStorage_fnSetClass( - IPropertyStorage* iface, - REFCLSID clsid) -{ - PropertyStorage_impl *This = impl_from_IPropertyStorage(iface); - - TRACE("%p, %s\n", iface, debugstr_guid(clsid)); - - if (!clsid) - return E_INVALIDARG; - if (!(This->grfMode & STGM_READWRITE)) - return STG_E_ACCESSDENIED; - This->clsid = *clsid; - This->dirty = TRUE; - if (This->grfFlags & PROPSETFLAG_UNBUFFERED) - IPropertyStorage_Commit(iface, STGC_DEFAULT); - return S_OK; -} - -/************************************************************************ - * IPropertyStorage_fnStat (IPropertyStorage) - */ -static HRESULT WINAPI IPropertyStorage_fnStat( - IPropertyStorage* iface, - STATPROPSETSTG* statpsstg) -{ - PropertyStorage_impl *This = impl_from_IPropertyStorage(iface); - STATSTG stat; - HRESULT hr; - - TRACE("%p, %p\n", iface, statpsstg); - - if (!statpsstg) - return E_INVALIDARG; - - hr = IStream_Stat(This->stm, &stat, STATFLAG_NONAME); - if (SUCCEEDED(hr)) - { - statpsstg->fmtid = This->fmtid; - statpsstg->clsid = This->clsid; - statpsstg->grfFlags = This->grfFlags; - statpsstg->mtime = stat.mtime; - statpsstg->ctime = stat.ctime; - statpsstg->atime = stat.atime; - statpsstg->dwOSVersion = This->originatorOS; - } - return hr; -} - -static int PropertyStorage_PropNameCompare(const void *a, const void *b, - void *extra) -{ - PropertyStorage_impl *This = extra; - - if (This->codePage == CP_UNICODE) - { - TRACE("(%s, %s)\n", debugstr_w(a), debugstr_w(b)); - if (This->grfFlags & PROPSETFLAG_CASE_SENSITIVE) - return wcscmp(a, b); - else - return lstrcmpiW(a, b); - } - else - { - TRACE("(%s, %s)\n", debugstr_a(a), debugstr_a(b)); - if (This->grfFlags & PROPSETFLAG_CASE_SENSITIVE) - return lstrcmpA(a, b); - else - return lstrcmpiA(a, b); - } -} - -static void PropertyStorage_PropNameDestroy(void *k, void *d, void *extra) -{ - CoTaskMemFree(k); -} - -static int PropertyStorage_PropCompare(const void *a, const void *b, - void *extra) -{ - TRACE("%lu, %lu.\n", PtrToUlong(a), PtrToUlong(b)); - return PtrToUlong(a) - PtrToUlong(b); -} - -static void PropertyStorage_PropertyDestroy(void *k, void *d, void *extra) -{ - PropVariantClear(d); - HeapFree(GetProcessHeap(), 0, d); -} - -#ifdef WORDS_BIGENDIAN -/* Swaps each character in str to or from little endian; assumes the conversion - * is symmetric, that is, that lendian16toh is equivalent to htole16. - */ -static void PropertyStorage_ByteSwapString(LPWSTR str, size_t len) -{ - DWORD i; - - /* Swap characters to host order. - * FIXME: alignment? - */ - for (i = 0; i < len; i++) - str[i] = lendian16toh(str[i]); -} -#else -#define PropertyStorage_ByteSwapString(s, l) -#endif - -static void* WINAPI Allocate_CoTaskMemAlloc(void *this, ULONG size) -{ - return CoTaskMemAlloc(size); -} - -struct read_buffer -{ - BYTE *data; - size_t size; -}; - -static HRESULT buffer_test_offset(const struct read_buffer *buffer, size_t offset, size_t len) -{ - return len > buffer->size || offset > buffer->size - len ? STG_E_READFAULT : S_OK; -} - -static HRESULT buffer_read_uint64(const struct read_buffer *buffer, size_t offset, ULARGE_INTEGER *data) -{ - HRESULT hr; - - if (SUCCEEDED(hr = buffer_test_offset(buffer, offset, sizeof(*data)))) - StorageUtl_ReadULargeInteger(buffer->data, offset, data); - - return hr; -} - -static HRESULT buffer_read_dword(const struct read_buffer *buffer, size_t offset, DWORD *data) -{ - HRESULT hr; - - if (SUCCEEDED(hr = buffer_test_offset(buffer, offset, sizeof(*data)))) - StorageUtl_ReadDWord(buffer->data, offset, data); - - return hr; -} - -static HRESULT buffer_read_word(const struct read_buffer *buffer, size_t offset, WORD *data) -{ - HRESULT hr; - - if (SUCCEEDED(hr = buffer_test_offset(buffer, offset, sizeof(*data)))) - StorageUtl_ReadWord(buffer->data, offset, data); - - return hr; -} - -static HRESULT buffer_read_byte(const struct read_buffer *buffer, size_t offset, BYTE *data) -{ - HRESULT hr; - - if (SUCCEEDED(hr = buffer_test_offset(buffer, offset, sizeof(*data)))) - *data = *(buffer->data + offset); - - return hr; -} - -static HRESULT buffer_read_len(const struct read_buffer *buffer, size_t offset, void *dest, size_t len) -{ - HRESULT hr; - - if (SUCCEEDED(hr = buffer_test_offset(buffer, offset, len))) - memcpy(dest, buffer->data + offset, len); - - return hr; -} - -static HRESULT propertystorage_read_scalar(PROPVARIANT *prop, const struct read_buffer *buffer, size_t offset, - UINT codepage, void* (WINAPI *allocate)(void *this, ULONG size), void *allocate_data) -{ - HRESULT hr; - - assert(!(prop->vt & (VT_ARRAY | VT_VECTOR))); - - switch (prop->vt) - { - case VT_EMPTY: - case VT_NULL: - hr = S_OK; - break; - case VT_I1: - hr = buffer_read_byte(buffer, offset, (BYTE *)&prop->cVal); - TRACE("Read char 0x%x ('%c')\n", prop->cVal, prop->cVal); - break; - case VT_UI1: - hr = buffer_read_byte(buffer, offset, &prop->bVal); - TRACE("Read byte 0x%x\n", prop->bVal); - break; - case VT_BOOL: - hr = buffer_read_word(buffer, offset, (WORD *)&prop->boolVal); - TRACE("Read bool %d\n", prop->boolVal); - break; - case VT_I2: - hr = buffer_read_word(buffer, offset, (WORD *)&prop->iVal); - TRACE("Read short %d\n", prop->iVal); - break; - case VT_UI2: - hr = buffer_read_word(buffer, offset, &prop->uiVal); - TRACE("Read ushort %d\n", prop->uiVal); - break; - case VT_INT: - case VT_I4: - hr = buffer_read_dword(buffer, offset, (DWORD *)&prop->lVal); - TRACE("Read long %ld\n", prop->lVal); - break; - case VT_UINT: - case VT_UI4: - hr = buffer_read_dword(buffer, offset, &prop->ulVal); - TRACE("Read ulong %ld\n", prop->ulVal); - break; - case VT_I8: - hr = buffer_read_uint64(buffer, offset, (ULARGE_INTEGER *)&prop->hVal); - TRACE("Read long long %s\n", wine_dbgstr_longlong(prop->hVal.QuadPart)); - break; - case VT_UI8: - hr = buffer_read_uint64(buffer, offset, &prop->uhVal); - TRACE("Read ulong long %s\n", wine_dbgstr_longlong(prop->uhVal.QuadPart)); - break; - case VT_R8: - hr = buffer_read_len(buffer, offset, &prop->dblVal, sizeof(prop->dblVal)); - TRACE("Read double %f\n", prop->dblVal); - break; - case VT_LPSTR: - { - DWORD count; - - if (FAILED(hr = buffer_read_dword(buffer, offset, &count))) - break; - - offset += sizeof(DWORD); - - if (codepage == CP_UNICODE && count % sizeof(WCHAR)) - { - WARN("Unicode string has odd number of bytes\n"); - hr = STG_E_INVALIDHEADER; - } - else - { - prop->pszVal = allocate(allocate_data, count); - if (prop->pszVal) - { - if (FAILED(hr = buffer_read_len(buffer, offset, prop->pszVal, count))) - break; - - /* This is stored in the code page specified in codepage. - * Don't convert it, the caller will just store it as-is. - */ - if (codepage == CP_UNICODE) - { - /* Make sure it's NULL-terminated */ - prop->pszVal[count / sizeof(WCHAR) - 1] = '\0'; - TRACE("Read string value %s\n", - debugstr_w(prop->pwszVal)); - } - else - { - /* Make sure it's NULL-terminated */ - prop->pszVal[count - 1] = '\0'; - TRACE("Read string value %s\n", debugstr_a(prop->pszVal)); - } - } - else - hr = STG_E_INSUFFICIENTMEMORY; - } - break; - } - case VT_BSTR: - { - DWORD count, wcount; - - if (FAILED(hr = buffer_read_dword(buffer, offset, &count))) - break; - - offset += sizeof(DWORD); - - if (codepage == CP_UNICODE && count % sizeof(WCHAR)) - { - WARN("Unicode string has odd number of bytes\n"); - hr = STG_E_INVALIDHEADER; - } - else - { - if (codepage == CP_UNICODE) - wcount = count / sizeof(WCHAR); - else - { - if (FAILED(hr = buffer_test_offset(buffer, offset, count))) - break; - wcount = MultiByteToWideChar(codepage, 0, (LPCSTR)(buffer->data + offset), count, NULL, 0); - } - - prop->bstrVal = SysAllocStringLen(NULL, wcount); /* FIXME: use allocator? */ - - if (prop->bstrVal) - { - if (codepage == CP_UNICODE) - hr = buffer_read_len(buffer, offset, prop->bstrVal, count); - else - MultiByteToWideChar(codepage, 0, (LPCSTR)(buffer->data + offset), count, prop->bstrVal, wcount); - - prop->bstrVal[wcount - 1] = '\0'; - TRACE("Read string value %s\n", debugstr_w(prop->bstrVal)); - } - else - hr = STG_E_INSUFFICIENTMEMORY; - } - break; - } - case VT_BLOB: - { - DWORD count; - - if (FAILED(hr = buffer_read_dword(buffer, offset, &count))) - break; - - offset += sizeof(DWORD); - - prop->blob.cbSize = count; - prop->blob.pBlobData = allocate(allocate_data, count); - if (prop->blob.pBlobData) - { - hr = buffer_read_len(buffer, offset, prop->blob.pBlobData, count); - TRACE("Read blob value of size %ld\n", count); - } - else - hr = STG_E_INSUFFICIENTMEMORY; - break; - } - case VT_LPWSTR: - { - DWORD count; - - if (FAILED(hr = buffer_read_dword(buffer, offset, &count))) - break; - - offset += sizeof(DWORD); - - prop->pwszVal = allocate(allocate_data, count * sizeof(WCHAR)); - if (prop->pwszVal) - { - if (SUCCEEDED(hr = buffer_read_len(buffer, offset, prop->pwszVal, count * sizeof(WCHAR)))) - { - /* make sure string is NULL-terminated */ - prop->pwszVal[count - 1] = '\0'; - PropertyStorage_ByteSwapString(prop->pwszVal, count); - TRACE("Read string value %s\n", debugstr_w(prop->pwszVal)); - } - } - else - hr = STG_E_INSUFFICIENTMEMORY; - break; - } - case VT_FILETIME: - hr = buffer_read_uint64(buffer, offset, (ULARGE_INTEGER *)&prop->filetime); - break; - case VT_CF: - { - DWORD len = 0, tag = 0; - - if (SUCCEEDED(hr = buffer_read_dword(buffer, offset, &len))) - hr = buffer_read_dword(buffer, offset + sizeof(DWORD), &tag); - if (FAILED(hr)) - break; - - offset += 2 * sizeof(DWORD); - - if (len > 8) - { - len -= 8; - prop->pclipdata = allocate(allocate_data, sizeof (CLIPDATA)); - prop->pclipdata->cbSize = len; - prop->pclipdata->ulClipFmt = tag; - prop->pclipdata->pClipData = allocate(allocate_data, len - sizeof(prop->pclipdata->ulClipFmt)); - hr = buffer_read_len(buffer, offset, prop->pclipdata->pClipData, len - sizeof(prop->pclipdata->ulClipFmt)); - } - else - hr = STG_E_INVALIDPARAMETER; - } - break; - case VT_CLSID: - if (!(prop->puuid = allocate(allocate_data, sizeof (*prop->puuid)))) - return STG_E_INSUFFICIENTMEMORY; - - if (SUCCEEDED(hr = buffer_test_offset(buffer, offset, sizeof(*prop->puuid)))) - StorageUtl_ReadGUID(buffer->data, offset, prop->puuid); - - break; - default: - FIXME("unsupported type %d\n", prop->vt); - hr = STG_E_INVALIDPARAMETER; - } - - return hr; -} - -static size_t propertystorage_get_elemsize(const PROPVARIANT *prop) -{ - if (!(prop->vt & VT_VECTOR)) - return 0; - - switch (prop->vt & ~VT_VECTOR) - { - case VT_I1: return sizeof(*prop->cac.pElems); - case VT_UI1: return sizeof(*prop->caub.pElems); - case VT_I2: return sizeof(*prop->cai.pElems); - case VT_UI2: return sizeof(*prop->caui.pElems); - case VT_BOOL: return sizeof(*prop->cabool.pElems); - case VT_I4: return sizeof(*prop->cal.pElems); - case VT_UI4: return sizeof(*prop->caul.pElems); - case VT_R4: return sizeof(*prop->caflt.pElems); - case VT_ERROR: return sizeof(*prop->cascode.pElems); - case VT_I8: return sizeof(*prop->cah.pElems); - case VT_UI8: return sizeof(*prop->cauh.pElems); - case VT_R8: return sizeof(*prop->cadbl.pElems); - case VT_CY: return sizeof(*prop->cacy.pElems); - case VT_DATE: return sizeof(*prop->cadate.pElems); - case VT_FILETIME: return sizeof(*prop->cafiletime.pElems); - case VT_CLSID: return sizeof(*prop->cauuid.pElems); - case VT_VARIANT: return sizeof(*prop->capropvar.pElems); - default: - FIXME("Unhandled type %#x.\n", prop->vt); - return 0; - } -} - -static HRESULT PropertyStorage_ReadProperty(PROPVARIANT *prop, const struct read_buffer *buffer, - size_t offset, UINT codepage, void* (WINAPI *allocate)(void *this, ULONG size), void *allocate_data) -{ - HRESULT hr; - DWORD vt; - - assert(prop); - assert(buffer->data); - - if (FAILED(hr = buffer_read_dword(buffer, offset, &vt))) - return hr; - - offset += sizeof(DWORD); - prop->vt = vt; - - if (prop->vt & VT_VECTOR) - { - DWORD count, i; - - switch (prop->vt & VT_VECTOR) - { - case VT_BSTR: - case VT_VARIANT: - case VT_LPSTR: - case VT_LPWSTR: - case VT_CF: - FIXME("Vector with variable length elements are not supported.\n"); - return STG_E_INVALIDPARAMETER; - default: - ; - } - - if (SUCCEEDED(hr = buffer_read_dword(buffer, offset, &count))) - { - size_t elemsize = propertystorage_get_elemsize(prop); - PROPVARIANT elem; - - offset += sizeof(DWORD); - - if ((prop->capropvar.pElems = allocate(allocate_data, elemsize * count))) - { - prop->capropvar.cElems = count; - elem.vt = prop->vt & ~VT_VECTOR; - - for (i = 0; i < count; ++i) - { - if (SUCCEEDED(hr = propertystorage_read_scalar(&elem, buffer, offset + i * elemsize, codepage, - allocate, allocate_data))) - { - memcpy(&prop->capropvar.pElems[i], &elem.lVal, elemsize); - } - } - } - else - hr = STG_E_INSUFFICIENTMEMORY; - } - } - else if (prop->vt & VT_ARRAY) - { - FIXME("VT_ARRAY properties are not supported.\n"); - hr = STG_E_INVALIDPARAMETER; - } - else - hr = propertystorage_read_scalar(prop, buffer, offset, codepage, allocate, allocate_data); - - return hr; -} - -static HRESULT PropertyStorage_ReadHeaderFromStream(IStream *stm, - PROPERTYSETHEADER *hdr) -{ - BYTE buf[sizeof(PROPERTYSETHEADER)]; - ULONG count = 0; - HRESULT hr; - - assert(stm); - assert(hdr); - hr = IStream_Read(stm, buf, sizeof(buf), &count); - if (SUCCEEDED(hr)) - { - if (count != sizeof(buf)) - { - WARN("read only %ld\n", count); - hr = STG_E_INVALIDHEADER; - } - else - { - StorageUtl_ReadWord(buf, offsetof(PROPERTYSETHEADER, wByteOrder), - &hdr->wByteOrder); - StorageUtl_ReadWord(buf, offsetof(PROPERTYSETHEADER, wFormat), - &hdr->wFormat); - StorageUtl_ReadDWord(buf, offsetof(PROPERTYSETHEADER, dwOSVer), - &hdr->dwOSVer); - StorageUtl_ReadGUID(buf, offsetof(PROPERTYSETHEADER, clsid), - &hdr->clsid); - StorageUtl_ReadDWord(buf, offsetof(PROPERTYSETHEADER, reserved), - &hdr->reserved); - } - } - TRACE("returning %#lx\n", hr); - return hr; -} - -static HRESULT PropertyStorage_ReadFmtIdOffsetFromStream(IStream *stm, - FORMATIDOFFSET *fmt) -{ - BYTE buf[sizeof(FORMATIDOFFSET)]; - ULONG count = 0; - HRESULT hr; - - assert(stm); - assert(fmt); - hr = IStream_Read(stm, buf, sizeof(buf), &count); - if (SUCCEEDED(hr)) - { - if (count != sizeof(buf)) - { - WARN("read only %ld\n", count); - hr = STG_E_INVALIDHEADER; - } - else - { - StorageUtl_ReadGUID(buf, offsetof(FORMATIDOFFSET, fmtid), - &fmt->fmtid); - StorageUtl_ReadDWord(buf, offsetof(FORMATIDOFFSET, dwOffset), - &fmt->dwOffset); - } - } - TRACE("returning %#lx\n", hr); - return hr; -} - -static HRESULT PropertyStorage_ReadSectionHeaderFromStream(IStream *stm, - PROPERTYSECTIONHEADER *hdr) -{ - BYTE buf[sizeof(PROPERTYSECTIONHEADER)]; - ULONG count = 0; - HRESULT hr; - - assert(stm); - assert(hdr); - hr = IStream_Read(stm, buf, sizeof(buf), &count); - if (SUCCEEDED(hr)) - { - if (count != sizeof(buf)) - { - WARN("read only %ld\n", count); - hr = STG_E_INVALIDHEADER; - } - else - { - StorageUtl_ReadDWord(buf, offsetof(PROPERTYSECTIONHEADER, - cbSection), &hdr->cbSection); - StorageUtl_ReadDWord(buf, offsetof(PROPERTYSECTIONHEADER, - cProperties), &hdr->cProperties); - } - } - TRACE("returning %#lx\n", hr); - return hr; -} - -/* Reads the dictionary from the memory buffer beginning at ptr. Interprets - * the entries according to the values of This->codePage and This->locale. - */ -static HRESULT PropertyStorage_ReadDictionary(PropertyStorage_impl *This, const struct read_buffer *buffer, - size_t offset) -{ - DWORD numEntries, i; - HRESULT hr; - - assert(This->name_to_propid); - assert(This->propid_to_name); - - if (FAILED(hr = buffer_read_dword(buffer, offset, &numEntries))) - return hr; - - TRACE("Reading %ld entries:\n", numEntries); - - offset += sizeof(DWORD); - - for (i = 0; SUCCEEDED(hr) && i < numEntries; i++) - { - PROPID propid; - DWORD cbEntry; - WCHAR ch = 0; - - if (SUCCEEDED(hr = buffer_read_dword(buffer, offset, &propid))) - hr = buffer_read_dword(buffer, offset + sizeof(PROPID), &cbEntry); - if (FAILED(hr)) - break; - - offset += sizeof(PROPID) + sizeof(DWORD); - - if (FAILED(hr = buffer_test_offset(buffer, offset, This->codePage == CP_UNICODE ? - ALIGNED_LENGTH(cbEntry * sizeof(WCHAR), 3) : cbEntry))) - { - WARN("Broken name length for entry %ld.\n", i); - return hr; - } - - /* Make sure the source string is NULL-terminated */ - if (This->codePage != CP_UNICODE) - buffer_read_byte(buffer, offset + cbEntry - 1, (BYTE *)&ch); - else - buffer_read_word(buffer, offset + (cbEntry - 1) * sizeof(WCHAR), &ch); - - if (ch) - { - WARN("Dictionary entry name %ld is not null-terminated.\n", i); - return E_FAIL; - } - - TRACE("Reading entry with ID %#lx, %ld chars, name %s.\n", propid, cbEntry, This->codePage == CP_UNICODE ? - debugstr_wn((WCHAR *)buffer->data, cbEntry) : debugstr_an((char *)buffer->data, cbEntry)); - - hr = PropertyStorage_StoreNameWithId(This, (char *)buffer->data + offset, This->codePage, propid); - /* Unicode entries are padded to DWORD boundaries */ - if (This->codePage == CP_UNICODE) - cbEntry = ALIGNED_LENGTH(cbEntry * sizeof(WCHAR), 3); - - offset += cbEntry; - } - - return hr; -} - -static HRESULT PropertyStorage_ReadFromStream(PropertyStorage_impl *This) -{ - struct read_buffer read_buffer; - PROPERTYSETHEADER hdr; - FORMATIDOFFSET fmtOffset; - PROPERTYSECTIONHEADER sectionHdr; - LARGE_INTEGER seek; - ULONG i; - STATSTG stat; - HRESULT hr; - BYTE *buf = NULL; - ULONG count = 0; - DWORD dictOffset = 0; - - This->dirty = FALSE; - This->highestProp = 0; - hr = IStream_Stat(This->stm, &stat, STATFLAG_NONAME); - if (FAILED(hr)) - goto end; - if (stat.cbSize.HighPart) - { - WARN("stream too big\n"); - /* maximum size varies, but it can't be this big */ - hr = STG_E_INVALIDHEADER; - goto end; - } - if (stat.cbSize.LowPart == 0) - { - /* empty stream is okay */ - hr = S_OK; - goto end; - } - else if (stat.cbSize.LowPart < sizeof(PROPERTYSETHEADER) + - sizeof(FORMATIDOFFSET)) - { - WARN("stream too small\n"); - hr = STG_E_INVALIDHEADER; - goto end; - } - seek.QuadPart = 0; - hr = IStream_Seek(This->stm, seek, STREAM_SEEK_SET, NULL); - if (FAILED(hr)) - goto end; - hr = PropertyStorage_ReadHeaderFromStream(This->stm, &hdr); - /* I've only seen reserved == 1, but the article says I shouldn't disallow - * higher values. - */ - if (hdr.wByteOrder != PROPSETHDR_BYTEORDER_MAGIC || hdr.reserved < 1) - { - WARN("bad magic in prop set header\n"); - hr = STG_E_INVALIDHEADER; - goto end; - } - if (hdr.wFormat != 0 && hdr.wFormat != 1) - { - WARN("bad format version %d\n", hdr.wFormat); - hr = STG_E_INVALIDHEADER; - goto end; - } - This->format = hdr.wFormat; - This->clsid = hdr.clsid; - This->originatorOS = hdr.dwOSVer; - if (PROPSETHDR_OSVER_KIND(hdr.dwOSVer) == PROPSETHDR_OSVER_KIND_MAC) - WARN("File comes from a Mac, strings will probably be screwed up\n"); - hr = PropertyStorage_ReadFmtIdOffsetFromStream(This->stm, &fmtOffset); - if (FAILED(hr)) - goto end; - if (fmtOffset.dwOffset > stat.cbSize.LowPart) - { - WARN("invalid offset %ld (stream length is %ld)\n", fmtOffset.dwOffset, stat.cbSize.LowPart); - hr = STG_E_INVALIDHEADER; - goto end; - } - /* wackiness alert: if the format ID is FMTID_DocSummaryInformation, there - * follows not one, but two sections. The first contains the standard properties - * for the document summary information, and the second consists of user-defined - * properties. This is the only case in which multiple sections are - * allowed. - * Reading the second stream isn't implemented yet. - */ - hr = PropertyStorage_ReadSectionHeaderFromStream(This->stm, §ionHdr); - if (FAILED(hr)) - goto end; - /* The section size includes the section header, so check it */ - if (sectionHdr.cbSection < sizeof(PROPERTYSECTIONHEADER)) - { - WARN("section header too small, got %ld\n", sectionHdr.cbSection); - hr = STG_E_INVALIDHEADER; - goto end; - } - buf = HeapAlloc(GetProcessHeap(), 0, sectionHdr.cbSection - - sizeof(PROPERTYSECTIONHEADER)); - if (!buf) - { - hr = STG_E_INSUFFICIENTMEMORY; - goto end; - } - read_buffer.data = buf; - read_buffer.size = sectionHdr.cbSection - sizeof(sectionHdr); - - hr = IStream_Read(This->stm, read_buffer.data, read_buffer.size, &count); - if (FAILED(hr)) - goto end; - TRACE("Reading %ld properties:\n", sectionHdr.cProperties); - for (i = 0; SUCCEEDED(hr) && i < sectionHdr.cProperties; i++) - { - PROPERTYIDOFFSET *idOffset = (PROPERTYIDOFFSET *)(read_buffer.data + - i * sizeof(PROPERTYIDOFFSET)); - - if (idOffset->dwOffset < sizeof(PROPERTYSECTIONHEADER) || - idOffset->dwOffset > sectionHdr.cbSection - sizeof(DWORD)) - hr = STG_E_INVALIDPOINTER; - else - { - if (idOffset->propid >= PID_FIRST_USABLE && - idOffset->propid < PID_MIN_READONLY && idOffset->propid > - This->highestProp) - This->highestProp = idOffset->propid; - if (idOffset->propid == PID_DICTIONARY) - { - /* Don't read the dictionary yet, its entries depend on the - * code page. Just store the offset so we know to read it - * later. - */ - dictOffset = idOffset->dwOffset; - TRACE("Dictionary offset is %ld\n", dictOffset); - } - else - { - PROPVARIANT prop; - - PropVariantInit(&prop); - if (SUCCEEDED(PropertyStorage_ReadProperty(&prop, &read_buffer, - idOffset->dwOffset - sizeof(PROPERTYSECTIONHEADER), This->codePage, - Allocate_CoTaskMemAlloc, NULL))) - { - TRACE("Read property with ID %#lx, type %d\n", idOffset->propid, prop.vt); - switch(idOffset->propid) - { - case PID_CODEPAGE: - if (prop.vt == VT_I2) - This->codePage = (USHORT)prop.iVal; - break; - case PID_LOCALE: - if (prop.vt == VT_I4) - This->locale = (LCID)prop.lVal; - break; - case PID_BEHAVIOR: - if (prop.vt == VT_I4 && prop.lVal) - This->grfFlags |= PROPSETFLAG_CASE_SENSITIVE; - /* The format should already be 1, but just in case */ - This->format = 1; - break; - default: - hr = PropertyStorage_StorePropWithId(This, - idOffset->propid, &prop, This->codePage); - } - } - PropVariantClear(&prop); - } - } - } - if (!This->codePage) - { - /* default to Unicode unless told not to, as specified on msdn */ - if (This->grfFlags & PROPSETFLAG_ANSI) - This->codePage = GetACP(); - else - This->codePage = CP_UNICODE; - } - if (!This->locale) - This->locale = LOCALE_SYSTEM_DEFAULT; - TRACE("Code page is %d, locale is %ld\n", This->codePage, This->locale); - if (dictOffset) - hr = PropertyStorage_ReadDictionary(This, &read_buffer, dictOffset - sizeof(PROPERTYSECTIONHEADER)); - -end: - HeapFree(GetProcessHeap(), 0, buf); - if (FAILED(hr)) - { - dictionary_destroy(This->name_to_propid); - This->name_to_propid = NULL; - dictionary_destroy(This->propid_to_name); - This->propid_to_name = NULL; - dictionary_destroy(This->propid_to_prop); - This->propid_to_prop = NULL; - } - return hr; -} - -static void PropertyStorage_MakeHeader(PropertyStorage_impl *This, - PROPERTYSETHEADER *hdr) -{ - assert(hdr); - StorageUtl_WriteWord(&hdr->wByteOrder, 0, PROPSETHDR_BYTEORDER_MAGIC); - StorageUtl_WriteWord(&hdr->wFormat, 0, This->format); - StorageUtl_WriteDWord(&hdr->dwOSVer, 0, This->originatorOS); - StorageUtl_WriteGUID(&hdr->clsid, 0, &This->clsid); - StorageUtl_WriteDWord(&hdr->reserved, 0, 1); -} - -static void PropertyStorage_MakeFmtIdOffset(PropertyStorage_impl *This, - FORMATIDOFFSET *fmtOffset) -{ - assert(fmtOffset); - StorageUtl_WriteGUID(fmtOffset, 0, &This->fmtid); - StorageUtl_WriteDWord(fmtOffset, offsetof(FORMATIDOFFSET, dwOffset), - sizeof(PROPERTYSETHEADER) + sizeof(FORMATIDOFFSET)); -} - -static void PropertyStorage_MakeSectionHdr(DWORD cbSection, DWORD numProps, - PROPERTYSECTIONHEADER *hdr) -{ - assert(hdr); - StorageUtl_WriteDWord(hdr, 0, cbSection); - StorageUtl_WriteDWord(hdr, offsetof(PROPERTYSECTIONHEADER, cProperties), numProps); -} - -static void PropertyStorage_MakePropertyIdOffset(DWORD propid, DWORD dwOffset, - PROPERTYIDOFFSET *propIdOffset) -{ - assert(propIdOffset); - StorageUtl_WriteDWord(propIdOffset, 0, propid); - StorageUtl_WriteDWord(propIdOffset, offsetof(PROPERTYIDOFFSET, dwOffset), dwOffset); -} - -static inline HRESULT PropertyStorage_WriteWStringToStream(IStream *stm, - LPCWSTR str, DWORD len, DWORD *written) -{ -#ifdef WORDS_BIGENDIAN - WCHAR *leStr = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR)); - HRESULT hr; - - if (!leStr) - return E_OUTOFMEMORY; - memcpy(leStr, str, len * sizeof(WCHAR)); - PropertyStorage_ByteSwapString(leStr, len); - hr = IStream_Write(stm, leStr, len, written); - HeapFree(GetProcessHeap(), 0, leStr); - return hr; -#else - return IStream_Write(stm, str, len * sizeof(WCHAR), written); -#endif -} - -struct DictionaryClosure -{ - HRESULT hr; - DWORD bytesWritten; -}; - -static BOOL PropertyStorage_DictionaryWriter(const void *key, - const void *value, void *extra, void *closure) -{ - PropertyStorage_impl *This = extra; - struct DictionaryClosure *c = closure; - DWORD propid, keyLen; - ULONG count; - - assert(key); - assert(closure); - StorageUtl_WriteDWord(&propid, 0, PtrToUlong(value)); - c->hr = IStream_Write(This->stm, &propid, sizeof(propid), &count); - if (FAILED(c->hr)) - goto end; - c->bytesWritten += sizeof(DWORD); - if (This->codePage == CP_UNICODE) - { - DWORD pad = 0, pad_len; - - StorageUtl_WriteDWord(&keyLen, 0, lstrlenW((LPCWSTR)key) + 1); - c->hr = IStream_Write(This->stm, &keyLen, sizeof(keyLen), &count); - if (FAILED(c->hr)) - goto end; - c->bytesWritten += sizeof(DWORD); - c->hr = PropertyStorage_WriteWStringToStream(This->stm, key, keyLen, - &count); - if (FAILED(c->hr)) - goto end; - keyLen *= sizeof(WCHAR); - c->bytesWritten += keyLen; - - /* Align to 4 bytes. */ - pad_len = sizeof(DWORD) - keyLen % sizeof(DWORD); - if (pad_len) - { - c->hr = IStream_Write(This->stm, &pad, pad_len, &count); - if (FAILED(c->hr)) - goto end; - c->bytesWritten += pad_len; - } - } - else - { - StorageUtl_WriteDWord(&keyLen, 0, strlen((LPCSTR)key) + 1); - c->hr = IStream_Write(This->stm, &keyLen, sizeof(keyLen), &count); - if (FAILED(c->hr)) - goto end; - c->bytesWritten += sizeof(DWORD); - c->hr = IStream_Write(This->stm, key, keyLen, &count); - if (FAILED(c->hr)) - goto end; - c->bytesWritten += keyLen; - } -end: - return SUCCEEDED(c->hr); -} - -#define SECTIONHEADER_OFFSET sizeof(PROPERTYSETHEADER) + sizeof(FORMATIDOFFSET) - -/* Writes the dictionary to the stream. Assumes without checking that the - * dictionary isn't empty. - */ -static HRESULT PropertyStorage_WriteDictionaryToStream( - PropertyStorage_impl *This, DWORD *sectionOffset) -{ - HRESULT hr; - LARGE_INTEGER seek; - PROPERTYIDOFFSET propIdOffset; - ULONG count; - DWORD dwTemp; - struct DictionaryClosure closure; - - assert(sectionOffset); - - /* The dictionary's always the first property written, so seek to its - * spot. - */ - seek.QuadPart = SECTIONHEADER_OFFSET + sizeof(PROPERTYSECTIONHEADER); - hr = IStream_Seek(This->stm, seek, STREAM_SEEK_SET, NULL); - if (FAILED(hr)) - goto end; - PropertyStorage_MakePropertyIdOffset(PID_DICTIONARY, *sectionOffset, - &propIdOffset); - hr = IStream_Write(This->stm, &propIdOffset, sizeof(propIdOffset), &count); - if (FAILED(hr)) - goto end; - - seek.QuadPart = SECTIONHEADER_OFFSET + *sectionOffset; - hr = IStream_Seek(This->stm, seek, STREAM_SEEK_SET, NULL); - if (FAILED(hr)) - goto end; - StorageUtl_WriteDWord(&dwTemp, 0, dictionary_num_entries(This->name_to_propid)); - hr = IStream_Write(This->stm, &dwTemp, sizeof(dwTemp), &count); - if (FAILED(hr)) - goto end; - *sectionOffset += sizeof(dwTemp); - - closure.hr = S_OK; - closure.bytesWritten = 0; - dictionary_enumerate(This->name_to_propid, PropertyStorage_DictionaryWriter, - &closure); - hr = closure.hr; - if (FAILED(hr)) - goto end; - *sectionOffset += closure.bytesWritten; - if (closure.bytesWritten % sizeof(DWORD)) - { - DWORD padding = sizeof(DWORD) - closure.bytesWritten % sizeof(DWORD); - TRACE("adding %ld bytes of padding\n", padding); - *sectionOffset += padding; - } - -end: - return hr; -} - -static HRESULT PropertyStorage_WritePropertyToStream(PropertyStorage_impl *This, - DWORD propNum, DWORD propid, const PROPVARIANT *var, DWORD *sectionOffset) -{ - DWORD len, dwType, dwTemp, bytesWritten; - HRESULT hr; - LARGE_INTEGER seek; - PROPERTYIDOFFSET propIdOffset; - ULARGE_INTEGER ularge; - ULONG count; - - assert(var); - assert(sectionOffset); - - TRACE("%p, %ld, %#lx, %d, %ld.\n", This, propNum, propid, var->vt, - *sectionOffset); - - seek.QuadPart = SECTIONHEADER_OFFSET + sizeof(PROPERTYSECTIONHEADER) + - propNum * sizeof(PROPERTYIDOFFSET); - hr = IStream_Seek(This->stm, seek, STREAM_SEEK_SET, NULL); - if (FAILED(hr)) - goto end; - PropertyStorage_MakePropertyIdOffset(propid, *sectionOffset, &propIdOffset); - hr = IStream_Write(This->stm, &propIdOffset, sizeof(propIdOffset), &count); - if (FAILED(hr)) - goto end; - - seek.QuadPart = SECTIONHEADER_OFFSET + *sectionOffset; - hr = IStream_Seek(This->stm, seek, STREAM_SEEK_SET, NULL); - if (FAILED(hr)) - goto end; - StorageUtl_WriteDWord(&dwType, 0, var->vt); - hr = IStream_Write(This->stm, &dwType, sizeof(dwType), &count); - if (FAILED(hr)) - goto end; - *sectionOffset += sizeof(dwType); - - switch (var->vt) - { - case VT_EMPTY: - case VT_NULL: - bytesWritten = 0; - break; - case VT_I1: - case VT_UI1: - hr = IStream_Write(This->stm, &var->cVal, sizeof(var->cVal), - &count); - bytesWritten = count; - break; - case VT_I2: - case VT_UI2: - { - WORD wTemp; - - StorageUtl_WriteWord(&wTemp, 0, var->iVal); - hr = IStream_Write(This->stm, &wTemp, sizeof(wTemp), &count); - bytesWritten = count; - break; - } - case VT_I4: - case VT_UI4: - { - StorageUtl_WriteDWord(&dwTemp, 0, var->lVal); - hr = IStream_Write(This->stm, &dwTemp, sizeof(dwTemp), &count); - bytesWritten = count; - break; - } - case VT_I8: - case VT_UI8: - { - StorageUtl_WriteULargeInteger(&ularge, 0, &var->uhVal); - hr = IStream_Write(This->stm, &ularge, sizeof(ularge), &bytesWritten); - break; - } - case VT_LPSTR: - { - if (This->codePage == CP_UNICODE) - len = (lstrlenW(var->pwszVal) + 1) * sizeof(WCHAR); - else - len = lstrlenA(var->pszVal) + 1; - StorageUtl_WriteDWord(&dwTemp, 0, len); - hr = IStream_Write(This->stm, &dwTemp, sizeof(dwTemp), &count); - if (FAILED(hr)) - goto end; - hr = IStream_Write(This->stm, var->pszVal, len, &count); - bytesWritten = count + sizeof(DWORD); - break; - } - case VT_BSTR: - { - if (This->codePage == CP_UNICODE) - { - len = SysStringByteLen(var->bstrVal) + sizeof(WCHAR); - StorageUtl_WriteDWord(&dwTemp, 0, len); - hr = IStream_Write(This->stm, &dwTemp, sizeof(dwTemp), &count); - if (SUCCEEDED(hr)) - hr = IStream_Write(This->stm, var->bstrVal, len, &count); - } - else - { - char *str; - - len = WideCharToMultiByte(This->codePage, 0, var->bstrVal, SysStringLen(var->bstrVal) + 1, - NULL, 0, NULL, NULL); - - str = heap_alloc(len); - if (!str) - { - hr = E_OUTOFMEMORY; - goto end; - } - - WideCharToMultiByte(This->codePage, 0, var->bstrVal, SysStringLen(var->bstrVal), - str, len, NULL, NULL); - StorageUtl_WriteDWord(&dwTemp, 0, len); - hr = IStream_Write(This->stm, &dwTemp, sizeof(dwTemp), &count); - if (SUCCEEDED(hr)) - hr = IStream_Write(This->stm, str, len, &count); - heap_free(str); - } - - bytesWritten = count + sizeof(DWORD); - break; - } - case VT_LPWSTR: - { - len = lstrlenW(var->pwszVal) + 1; - - StorageUtl_WriteDWord(&dwTemp, 0, len); - hr = IStream_Write(This->stm, &dwTemp, sizeof(dwTemp), &count); - if (FAILED(hr)) - goto end; - hr = IStream_Write(This->stm, var->pwszVal, len * sizeof(WCHAR), - &count); - bytesWritten = count + sizeof(DWORD); - break; - } - case VT_FILETIME: - { - FILETIME temp; - - StorageUtl_WriteULargeInteger(&temp, 0, (const ULARGE_INTEGER *)&var->filetime); - hr = IStream_Write(This->stm, &temp, sizeof(temp), &count); - bytesWritten = count; - break; - } - case VT_CF: - { - DWORD cf_hdr[2]; - - len = var->pclipdata->cbSize; - StorageUtl_WriteDWord(&cf_hdr[0], 0, len + 8); - StorageUtl_WriteDWord(&cf_hdr[1], 0, var->pclipdata->ulClipFmt); - hr = IStream_Write(This->stm, cf_hdr, sizeof(cf_hdr), &count); - if (FAILED(hr)) - goto end; - hr = IStream_Write(This->stm, var->pclipdata->pClipData, - len - sizeof(var->pclipdata->ulClipFmt), &count); - if (FAILED(hr)) - goto end; - bytesWritten = count + sizeof cf_hdr; - break; - } - case VT_CLSID: - { - CLSID temp; - - StorageUtl_WriteGUID(&temp, 0, var->puuid); - hr = IStream_Write(This->stm, &temp, sizeof(temp), &count); - bytesWritten = count; - break; - } - case VT_BLOB: - { - StorageUtl_WriteDWord(&dwTemp, 0, var->blob.cbSize); - hr = IStream_Write(This->stm, &dwTemp, sizeof(dwTemp), &count); - if (FAILED(hr)) - goto end; - hr = IStream_Write(This->stm, var->blob.pBlobData, var->blob.cbSize, &count); - bytesWritten = count + sizeof(DWORD); - break; - } - default: - FIXME("unsupported type: %d\n", var->vt); - return STG_E_INVALIDPARAMETER; - } - - if (SUCCEEDED(hr)) - { - *sectionOffset += bytesWritten; - if (bytesWritten % sizeof(DWORD)) - { - DWORD padding = sizeof(DWORD) - bytesWritten % sizeof(DWORD); - TRACE("adding %ld bytes of padding\n", padding); - *sectionOffset += padding; - } - } - -end: - return hr; -} - -struct PropertyClosure -{ - HRESULT hr; - DWORD propNum; - DWORD *sectionOffset; -}; - -static BOOL PropertyStorage_PropertiesWriter(const void *key, const void *value, - void *extra, void *closure) -{ - PropertyStorage_impl *This = extra; - struct PropertyClosure *c = closure; - - assert(key); - assert(value); - assert(extra); - assert(closure); - c->hr = PropertyStorage_WritePropertyToStream(This, c->propNum++, - PtrToUlong(key), value, c->sectionOffset); - return SUCCEEDED(c->hr); -} - -static HRESULT PropertyStorage_WritePropertiesToStream( - PropertyStorage_impl *This, DWORD startingPropNum, DWORD *sectionOffset) -{ - struct PropertyClosure closure; - - assert(sectionOffset); - closure.hr = S_OK; - closure.propNum = startingPropNum; - closure.sectionOffset = sectionOffset; - dictionary_enumerate(This->propid_to_prop, PropertyStorage_PropertiesWriter, - &closure); - return closure.hr; -} - -static HRESULT PropertyStorage_WriteHeadersToStream(PropertyStorage_impl *This) -{ - HRESULT hr; - ULONG count = 0; - LARGE_INTEGER seek = { {0} }; - PROPERTYSETHEADER hdr; - FORMATIDOFFSET fmtOffset; - - hr = IStream_Seek(This->stm, seek, STREAM_SEEK_SET, NULL); - if (FAILED(hr)) - goto end; - PropertyStorage_MakeHeader(This, &hdr); - hr = IStream_Write(This->stm, &hdr, sizeof(hdr), &count); - if (FAILED(hr)) - goto end; - if (count != sizeof(hdr)) - { - hr = STG_E_WRITEFAULT; - goto end; - } - - PropertyStorage_MakeFmtIdOffset(This, &fmtOffset); - hr = IStream_Write(This->stm, &fmtOffset, sizeof(fmtOffset), &count); - if (FAILED(hr)) - goto end; - if (count != sizeof(fmtOffset)) - { - hr = STG_E_WRITEFAULT; - goto end; - } - hr = S_OK; - -end: - return hr; -} - -static HRESULT PropertyStorage_WriteToStream(PropertyStorage_impl *This) -{ - PROPERTYSECTIONHEADER sectionHdr; - HRESULT hr; - ULONG count; - LARGE_INTEGER seek; - DWORD numProps, prop, sectionOffset, dwTemp; - PROPVARIANT var; - - PropertyStorage_WriteHeadersToStream(This); - - /* Count properties. Always at least one property, the code page */ - numProps = 1; - if (dictionary_num_entries(This->name_to_propid)) - numProps++; - if (This->locale != LOCALE_SYSTEM_DEFAULT) - numProps++; - if (This->grfFlags & PROPSETFLAG_CASE_SENSITIVE) - numProps++; - numProps += dictionary_num_entries(This->propid_to_prop); - - /* Write section header with 0 bytes right now, I'll adjust it after - * writing properties. - */ - PropertyStorage_MakeSectionHdr(0, numProps, §ionHdr); - seek.QuadPart = SECTIONHEADER_OFFSET; - hr = IStream_Seek(This->stm, seek, STREAM_SEEK_SET, NULL); - if (FAILED(hr)) - goto end; - hr = IStream_Write(This->stm, §ionHdr, sizeof(sectionHdr), &count); - if (FAILED(hr)) - goto end; - - prop = 0; - sectionOffset = sizeof(PROPERTYSECTIONHEADER) + - numProps * sizeof(PROPERTYIDOFFSET); - - if (dictionary_num_entries(This->name_to_propid)) - { - prop++; - hr = PropertyStorage_WriteDictionaryToStream(This, §ionOffset); - if (FAILED(hr)) - goto end; - } - - PropVariantInit(&var); - - var.vt = VT_I2; - var.iVal = This->codePage; - hr = PropertyStorage_WritePropertyToStream(This, prop++, PID_CODEPAGE, - &var, §ionOffset); - if (FAILED(hr)) - goto end; - - if (This->locale != LOCALE_SYSTEM_DEFAULT) - { - var.vt = VT_I4; - var.lVal = This->locale; - hr = PropertyStorage_WritePropertyToStream(This, prop++, PID_LOCALE, - &var, §ionOffset); - if (FAILED(hr)) - goto end; - } - - if (This->grfFlags & PROPSETFLAG_CASE_SENSITIVE) - { - var.vt = VT_I4; - var.lVal = 1; - hr = PropertyStorage_WritePropertyToStream(This, prop++, PID_BEHAVIOR, - &var, §ionOffset); - if (FAILED(hr)) - goto end; - } - - hr = PropertyStorage_WritePropertiesToStream(This, prop, §ionOffset); - if (FAILED(hr)) - goto end; - - /* Now write the byte count of the section */ - seek.QuadPart = SECTIONHEADER_OFFSET; - hr = IStream_Seek(This->stm, seek, STREAM_SEEK_SET, NULL); - if (FAILED(hr)) - goto end; - StorageUtl_WriteDWord(&dwTemp, 0, sectionOffset); - hr = IStream_Write(This->stm, &dwTemp, sizeof(dwTemp), &count); - -end: - return hr; -} - -/*********************************************************************** - * PropertyStorage_Construct - */ -static void PropertyStorage_DestroyDictionaries(PropertyStorage_impl *This) -{ - dictionary_destroy(This->name_to_propid); - This->name_to_propid = NULL; - dictionary_destroy(This->propid_to_name); - This->propid_to_name = NULL; - dictionary_destroy(This->propid_to_prop); - This->propid_to_prop = NULL; -} - -static HRESULT PropertyStorage_CreateDictionaries(PropertyStorage_impl *This) -{ - HRESULT hr = S_OK; - - This->name_to_propid = dictionary_create( - PropertyStorage_PropNameCompare, PropertyStorage_PropNameDestroy, - This); - if (!This->name_to_propid) - { - hr = STG_E_INSUFFICIENTMEMORY; - goto end; - } - This->propid_to_name = dictionary_create(PropertyStorage_PropCompare, - NULL, This); - if (!This->propid_to_name) - { - hr = STG_E_INSUFFICIENTMEMORY; - goto end; - } - This->propid_to_prop = dictionary_create(PropertyStorage_PropCompare, - PropertyStorage_PropertyDestroy, This); - if (!This->propid_to_prop) - { - hr = STG_E_INSUFFICIENTMEMORY; - goto end; - } -end: - if (FAILED(hr)) - PropertyStorage_DestroyDictionaries(This); - return hr; -} - -static HRESULT PropertyStorage_BaseConstruct(IStream *stm, - REFFMTID rfmtid, DWORD grfMode, PropertyStorage_impl **pps) -{ - HRESULT hr = S_OK; - - assert(pps); - assert(rfmtid); - *pps = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof **pps); - if (!*pps) - return E_OUTOFMEMORY; - - (*pps)->IPropertyStorage_iface.lpVtbl = &IPropertyStorage_Vtbl; - (*pps)->ref = 1; - InitializeCriticalSection(&(*pps)->cs); - (*pps)->cs.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": PropertyStorage_impl.cs"); - (*pps)->stm = stm; - (*pps)->fmtid = *rfmtid; - (*pps)->grfMode = grfMode; - - hr = PropertyStorage_CreateDictionaries(*pps); - if (FAILED(hr)) - { - (*pps)->cs.DebugInfo->Spare[0] = 0; - DeleteCriticalSection(&(*pps)->cs); - HeapFree(GetProcessHeap(), 0, *pps); - *pps = NULL; - } - else IStream_AddRef( stm ); - - return hr; -} - -static HRESULT PropertyStorage_ConstructFromStream(IStream *stm, - REFFMTID rfmtid, DWORD grfMode, IPropertyStorage** pps) -{ - PropertyStorage_impl *ps; - HRESULT hr; - - assert(pps); - hr = PropertyStorage_BaseConstruct(stm, rfmtid, grfMode, &ps); - if (SUCCEEDED(hr)) - { - hr = PropertyStorage_ReadFromStream(ps); - if (SUCCEEDED(hr)) - { - *pps = &ps->IPropertyStorage_iface; - TRACE("PropertyStorage %p constructed\n", ps); - hr = S_OK; - } - else IPropertyStorage_Release( &ps->IPropertyStorage_iface ); - } - return hr; -} - -static HRESULT PropertyStorage_ConstructEmpty(IStream *stm, - REFFMTID rfmtid, DWORD grfFlags, DWORD grfMode, IPropertyStorage** pps) -{ - PropertyStorage_impl *ps; - HRESULT hr; - - assert(pps); - hr = PropertyStorage_BaseConstruct(stm, rfmtid, grfMode, &ps); - if (SUCCEEDED(hr)) - { - ps->format = 0; - ps->grfFlags = grfFlags; - if (ps->grfFlags & PROPSETFLAG_CASE_SENSITIVE) - ps->format = 1; - /* default to Unicode unless told not to, as specified on msdn */ - if (ps->grfFlags & PROPSETFLAG_ANSI) - ps->codePage = GetACP(); - else - ps->codePage = CP_UNICODE; - ps->locale = LOCALE_SYSTEM_DEFAULT; - TRACE("Code page is %d, locale is %ld\n", ps->codePage, ps->locale); - *pps = &ps->IPropertyStorage_iface; - TRACE("PropertyStorage %p constructed\n", ps); - hr = S_OK; - } - return hr; -} - - -/*********************************************************************** - * Implementation of IPropertySetStorage - */ - -struct enum_stat_propset_stg -{ - IEnumSTATPROPSETSTG IEnumSTATPROPSETSTG_iface; - LONG refcount; - STATPROPSETSTG *stats; - size_t current; - size_t count; -}; - -static struct enum_stat_propset_stg *impl_from_IEnumSTATPROPSETSTG(IEnumSTATPROPSETSTG *iface) -{ - return CONTAINING_RECORD(iface, struct enum_stat_propset_stg, IEnumSTATPROPSETSTG_iface); -} - -static HRESULT WINAPI enum_stat_propset_stg_QueryInterface(IEnumSTATPROPSETSTG *iface, REFIID riid, void **obj) -{ - TRACE("%p, %s, %p.\n", iface, debugstr_guid(riid), obj); - - if (IsEqualIID(riid, &IID_IEnumSTATPROPSETSTG) || - IsEqualIID(riid, &IID_IUnknown)) - { - *obj = iface; - IEnumSTATPROPSETSTG_AddRef(iface); - return S_OK; - } - - WARN("Unsupported interface %s.\n", debugstr_guid(riid)); - return E_NOINTERFACE; -} - -static ULONG WINAPI enum_stat_propset_stg_AddRef(IEnumSTATPROPSETSTG *iface) -{ - struct enum_stat_propset_stg *psenum = impl_from_IEnumSTATPROPSETSTG(iface); - LONG refcount = InterlockedIncrement(&psenum->refcount); - - TRACE("%p, refcount %lu.\n", iface, refcount); - - return refcount; -} - -static ULONG WINAPI enum_stat_propset_stg_Release(IEnumSTATPROPSETSTG *iface) -{ - struct enum_stat_propset_stg *psenum = impl_from_IEnumSTATPROPSETSTG(iface); - LONG refcount = InterlockedDecrement(&psenum->refcount); - - TRACE("%p, refcount %lu.\n", iface, refcount); - - if (!refcount) - { - heap_free(psenum->stats); - heap_free(psenum); - } - - return refcount; -} - -static HRESULT WINAPI enum_stat_propset_stg_Next(IEnumSTATPROPSETSTG *iface, ULONG celt, - STATPROPSETSTG *ret, ULONG *fetched) -{ - struct enum_stat_propset_stg *psenum = impl_from_IEnumSTATPROPSETSTG(iface); - ULONG count = 0; - - TRACE("%p, %lu, %p, %p.\n", iface, celt, ret, fetched); - - if (psenum->current == ~0u) - psenum->current = 0; - - while (count < celt && psenum->current < psenum->count) - ret[count++] = psenum->stats[psenum->current++]; - - if (fetched) - *fetched = count; - - return count < celt ? S_FALSE : S_OK; -} - -static HRESULT WINAPI enum_stat_propset_stg_Skip(IEnumSTATPROPSETSTG *iface, ULONG celt) -{ - FIXME("%p, %lu.\n", iface, celt); - - return S_OK; -} - -static HRESULT WINAPI enum_stat_propset_stg_Reset(IEnumSTATPROPSETSTG *iface) -{ - struct enum_stat_propset_stg *psenum = impl_from_IEnumSTATPROPSETSTG(iface); - - TRACE("%p.\n", iface); - - psenum->current = ~0u; - - return S_OK; -} - -static HRESULT WINAPI enum_stat_propset_stg_Clone(IEnumSTATPROPSETSTG *iface, IEnumSTATPROPSETSTG **ppenum) -{ - FIXME("%p, %p.\n", iface, ppenum); - - return E_NOTIMPL; -} - -static const IEnumSTATPROPSETSTGVtbl enum_stat_propset_stg_vtbl = -{ - enum_stat_propset_stg_QueryInterface, - enum_stat_propset_stg_AddRef, - enum_stat_propset_stg_Release, - enum_stat_propset_stg_Next, - enum_stat_propset_stg_Skip, - enum_stat_propset_stg_Reset, - enum_stat_propset_stg_Clone, -}; - -static HRESULT create_enum_stat_propset_stg(StorageImpl *storage, IEnumSTATPROPSETSTG **ret) -{ - IStorage *stg = &storage->base.IStorage_iface; - IEnumSTATSTG *penum = NULL; - STATSTG stat; - ULONG count; - HRESULT hr; - - struct enum_stat_propset_stg *enum_obj; - - enum_obj = heap_alloc_zero(sizeof(*enum_obj)); - if (!enum_obj) - return E_OUTOFMEMORY; - - enum_obj->IEnumSTATPROPSETSTG_iface.lpVtbl = &enum_stat_propset_stg_vtbl; - enum_obj->refcount = 1; - - /* add all the property set elements into a list */ - hr = IStorage_EnumElements(stg, 0, NULL, 0, &penum); - if (FAILED(hr)) - goto done; - - /* Allocate stats array and fill it. */ - while ((hr = IEnumSTATSTG_Next(penum, 1, &stat, &count)) == S_OK) - { - enum_obj->count++; - CoTaskMemFree(stat.pwcsName); - } - - if (FAILED(hr)) - goto done; - - enum_obj->stats = heap_alloc(enum_obj->count * sizeof(*enum_obj->stats)); - if (!enum_obj->stats) - { - hr = E_OUTOFMEMORY; - goto done; - } - enum_obj->count = 0; - - if (FAILED(hr = IEnumSTATSTG_Reset(penum))) - goto done; - - while (IEnumSTATSTG_Next(penum, 1, &stat, &count) == S_OK) - { - if (!stat.pwcsName) - continue; - - if (stat.pwcsName[0] == 5 && stat.type == STGTY_STREAM) - { - STATPROPSETSTG *ptr = &enum_obj->stats[enum_obj->count++]; - - PropStgNameToFmtId(stat.pwcsName, &ptr->fmtid); - - TRACE("adding %s - %s.\n", debugstr_w(stat.pwcsName), debugstr_guid(&ptr->fmtid)); - - ptr->mtime = stat.mtime; - ptr->atime = stat.atime; - ptr->ctime = stat.ctime; - ptr->grfFlags = stat.grfMode; - ptr->clsid = stat.clsid; - } - CoTaskMemFree(stat.pwcsName); - } - -done: - - if (penum) - IEnumSTATSTG_Release(penum); - - if (SUCCEEDED(hr)) - { - *ret = &enum_obj->IEnumSTATPROPSETSTG_iface; - } - else - { - *ret = NULL; - IEnumSTATPROPSETSTG_Release(&enum_obj->IEnumSTATPROPSETSTG_iface); - } - - return hr; -} - -/************************************************************************ - * IPropertySetStorage_fnQueryInterface (IUnknown) - * - * This method forwards to the common QueryInterface implementation - */ -static HRESULT WINAPI IPropertySetStorage_fnQueryInterface( - IPropertySetStorage *ppstg, - REFIID riid, - void** ppvObject) -{ - StorageImpl *This = impl_from_IPropertySetStorage(ppstg); - return IStorage_QueryInterface( &This->base.IStorage_iface, riid, ppvObject ); -} - -/************************************************************************ - * IPropertySetStorage_fnAddRef (IUnknown) - * - * This method forwards to the common AddRef implementation - */ -static ULONG WINAPI IPropertySetStorage_fnAddRef( - IPropertySetStorage *ppstg) -{ - StorageImpl *This = impl_from_IPropertySetStorage(ppstg); - return IStorage_AddRef( &This->base.IStorage_iface ); -} - -/************************************************************************ - * IPropertySetStorage_fnRelease (IUnknown) - * - * This method forwards to the common Release implementation - */ -static ULONG WINAPI IPropertySetStorage_fnRelease( - IPropertySetStorage *ppstg) -{ - StorageImpl *This = impl_from_IPropertySetStorage(ppstg); - return IStorage_Release( &This->base.IStorage_iface ); -} - -/************************************************************************ - * IPropertySetStorage_fnCreate (IPropertySetStorage) - */ -static HRESULT WINAPI IPropertySetStorage_fnCreate( - IPropertySetStorage *ppstg, - REFFMTID rfmtid, - const CLSID* pclsid, - DWORD grfFlags, - DWORD grfMode, - IPropertyStorage** ppprstg) -{ - StorageImpl *This = impl_from_IPropertySetStorage(ppstg); - WCHAR name[CCH_MAX_PROPSTG_NAME + 1]; - IStream *stm = NULL; - HRESULT r; - - TRACE("%p, %s %#lx, %#lx, %p.\n", This, debugstr_guid(rfmtid), grfFlags, - grfMode, ppprstg); - - /* be picky */ - if (grfMode != (STGM_CREATE|STGM_READWRITE|STGM_SHARE_EXCLUSIVE)) - { - r = STG_E_INVALIDFLAG; - goto end; - } - - if (!rfmtid) - { - r = E_INVALIDARG; - goto end; - } - - /* FIXME: if (grfFlags & PROPSETFLAG_NONSIMPLE), we need to create a - * storage, not a stream. For now, disallow it. - */ - if (grfFlags & PROPSETFLAG_NONSIMPLE) - { - FIXME("PROPSETFLAG_NONSIMPLE not supported\n"); - r = STG_E_INVALIDFLAG; - goto end; - } - - r = FmtIdToPropStgName(rfmtid, name); - if (FAILED(r)) - goto end; - - r = IStorage_CreateStream( &This->base.IStorage_iface, name, grfMode, 0, 0, &stm ); - if (FAILED(r)) - goto end; - - r = PropertyStorage_ConstructEmpty(stm, rfmtid, grfFlags, grfMode, ppprstg); - - IStream_Release( stm ); - -end: - TRACE("returning %#lx\n", r); - return r; -} - -/************************************************************************ - * IPropertySetStorage_fnOpen (IPropertySetStorage) - */ -static HRESULT WINAPI IPropertySetStorage_fnOpen( - IPropertySetStorage *ppstg, - REFFMTID rfmtid, - DWORD grfMode, - IPropertyStorage** ppprstg) -{ - StorageImpl *This = impl_from_IPropertySetStorage(ppstg); - IStream *stm = NULL; - WCHAR name[CCH_MAX_PROPSTG_NAME + 1]; - HRESULT r; - - TRACE("%p, %s, %#lx, %p.\n", This, debugstr_guid(rfmtid), grfMode, ppprstg); - - /* be picky */ - if (grfMode != (STGM_READWRITE|STGM_SHARE_EXCLUSIVE) && - grfMode != (STGM_READ|STGM_SHARE_EXCLUSIVE)) - { - r = STG_E_INVALIDFLAG; - goto end; - } - - if (!rfmtid) - { - r = E_INVALIDARG; - goto end; - } - - r = FmtIdToPropStgName(rfmtid, name); - if (FAILED(r)) - goto end; - - r = IStorage_OpenStream( &This->base.IStorage_iface, name, 0, grfMode, 0, &stm ); - if (FAILED(r)) - goto end; - - r = PropertyStorage_ConstructFromStream(stm, rfmtid, grfMode, ppprstg); - - IStream_Release( stm ); - -end: - TRACE("returning %#lx\n", r); - return r; -} - -/************************************************************************ - * IPropertySetStorage_fnDelete (IPropertySetStorage) - */ -static HRESULT WINAPI IPropertySetStorage_fnDelete( - IPropertySetStorage *ppstg, - REFFMTID rfmtid) -{ - StorageImpl *This = impl_from_IPropertySetStorage(ppstg); - WCHAR name[CCH_MAX_PROPSTG_NAME + 1]; - HRESULT r; - - TRACE("%p %s\n", This, debugstr_guid(rfmtid)); - - if (!rfmtid) - return E_INVALIDARG; - - r = FmtIdToPropStgName(rfmtid, name); - if (FAILED(r)) - return r; - - return IStorage_DestroyElement(&This->base.IStorage_iface, name); -} - -static HRESULT WINAPI IPropertySetStorage_fnEnum(IPropertySetStorage *iface, IEnumSTATPROPSETSTG **enum_obj) -{ - StorageImpl *storage = impl_from_IPropertySetStorage(iface); - - TRACE("%p, %p.\n", iface, enum_obj); - - if (!enum_obj) - return E_INVALIDARG; - - return create_enum_stat_propset_stg(storage, enum_obj); -} - -/*********************************************************************** - * vtables - */ -const IPropertySetStorageVtbl IPropertySetStorage_Vtbl = -{ - IPropertySetStorage_fnQueryInterface, - IPropertySetStorage_fnAddRef, - IPropertySetStorage_fnRelease, - IPropertySetStorage_fnCreate, - IPropertySetStorage_fnOpen, - IPropertySetStorage_fnDelete, - IPropertySetStorage_fnEnum -}; - -static const IPropertyStorageVtbl IPropertyStorage_Vtbl = -{ - IPropertyStorage_fnQueryInterface, - IPropertyStorage_fnAddRef, - IPropertyStorage_fnRelease, - IPropertyStorage_fnReadMultiple, - IPropertyStorage_fnWriteMultiple, - IPropertyStorage_fnDeleteMultiple, - IPropertyStorage_fnReadPropertyNames, - IPropertyStorage_fnWritePropertyNames, - IPropertyStorage_fnDeletePropertyNames, - IPropertyStorage_fnCommit, - IPropertyStorage_fnRevert, - IPropertyStorage_fnEnum, - IPropertyStorage_fnSetTimes, - IPropertyStorage_fnSetClass, - IPropertyStorage_fnStat, -}; - -#ifdef __i386__ /* thiscall functions are i386-specific */ - -#define DEFINE_STDCALL_WRAPPER(num,func,args) \ - __ASM_STDCALL_FUNC(func, args, \ - "popl %eax\n\t" \ - "popl %ecx\n\t" \ - "pushl %eax\n\t" \ - "movl (%ecx), %eax\n\t" \ - "jmp *(4*(" #num "))(%eax)" ) - -DEFINE_STDCALL_WRAPPER(0,Allocate_PMemoryAllocator,8) -extern void* WINAPI Allocate_PMemoryAllocator(void *this, ULONG cbSize); - -#else - -static void* WINAPI Allocate_PMemoryAllocator(void *this, ULONG cbSize) -{ - void* (WINAPI *fn)(void*,ULONG) = **(void***)this; - return fn(this, cbSize); -} - -#endif - -BOOLEAN WINAPI StgConvertPropertyToVariant(const SERIALIZEDPROPERTYVALUE* prop, - USHORT CodePage, PROPVARIANT* pvar, void* pma) -{ - struct read_buffer read_buffer; - HRESULT hr; - - read_buffer.data = (BYTE *)prop; - read_buffer.size = ~(size_t)0; - hr = PropertyStorage_ReadProperty(pvar, &read_buffer, 0, CodePage, Allocate_PMemoryAllocator, pma); - - if (FAILED(hr)) - { - FIXME("should raise C++ exception on failure\n"); - PropVariantInit(pvar); - } - - return FALSE; -} - -SERIALIZEDPROPERTYVALUE* WINAPI StgConvertVariantToProperty(const PROPVARIANT *pvar, - USHORT CodePage, SERIALIZEDPROPERTYVALUE *pprop, ULONG *pcb, PROPID pid, - BOOLEAN fReserved, ULONG *pcIndirect) -{ - FIXME("%p, %d, %p, %p, %ld, %d, %p.\n", pvar, CodePage, pprop, pcb, pid, fReserved, pcIndirect); - - return NULL; -} - -HRESULT WINAPI StgCreatePropStg(IUnknown *unk, REFFMTID fmt, const CLSID *clsid, - DWORD flags, DWORD reserved, IPropertyStorage **prop_stg) -{ - IStorage *stg; - IStream *stm; - HRESULT r; - - TRACE("%p, %s, %s, %#lx, %ld, %p.\n", unk, debugstr_guid(fmt), debugstr_guid(clsid), flags, reserved, prop_stg); - - if (!fmt || reserved) - { - r = E_INVALIDARG; - goto end; - } - - if (flags & PROPSETFLAG_NONSIMPLE) - { - r = IUnknown_QueryInterface(unk, &IID_IStorage, (void **)&stg); - if (FAILED(r)) - goto end; - - /* FIXME: if (flags & PROPSETFLAG_NONSIMPLE), we need to create a - * storage, not a stream. For now, disallow it. - */ - FIXME("PROPSETFLAG_NONSIMPLE not supported\n"); - IStorage_Release(stg); - r = STG_E_INVALIDFLAG; - } - else - { - r = IUnknown_QueryInterface(unk, &IID_IStream, (void **)&stm); - if (FAILED(r)) - goto end; - - r = PropertyStorage_ConstructEmpty(stm, fmt, flags, - STGM_CREATE|STGM_READWRITE|STGM_SHARE_EXCLUSIVE, prop_stg); - - IStream_Release( stm ); - } - -end: - TRACE("returning %#lx\n", r); - return r; -} - -HRESULT WINAPI StgOpenPropStg(IUnknown *unk, REFFMTID fmt, DWORD flags, - DWORD reserved, IPropertyStorage **prop_stg) -{ - IStorage *stg; - IStream *stm; - HRESULT r; - - TRACE("%p, %s, %#lx, %ld, %p.\n", unk, debugstr_guid(fmt), flags, reserved, prop_stg); - - if (!fmt || reserved) - { - r = E_INVALIDARG; - goto end; - } - - if (flags & PROPSETFLAG_NONSIMPLE) - { - r = IUnknown_QueryInterface(unk, &IID_IStorage, (void **)&stg); - if (FAILED(r)) - goto end; - - /* FIXME: if (flags & PROPSETFLAG_NONSIMPLE), we need to open a - * storage, not a stream. For now, disallow it. - */ - FIXME("PROPSETFLAG_NONSIMPLE not supported\n"); - IStorage_Release(stg); - r = STG_E_INVALIDFLAG; - } - else - { - r = IUnknown_QueryInterface(unk, &IID_IStream, (void **)&stm); - if (FAILED(r)) - goto end; - - r = PropertyStorage_ConstructFromStream(stm, fmt, - STGM_READWRITE|STGM_SHARE_EXCLUSIVE, prop_stg); - - IStream_Release( stm ); - } - -end: - TRACE("returning %#lx\n", r); - return r; -} diff --git a/dlls/ole32/storage32.c b/dlls/ole32/storage32.c index 1bf08e45701..bf3ec26ff7b 100644 --- a/dlls/ole32/storage32.c +++ b/dlls/ole32/storage32.c @@ -43,7 +43,6 @@ #include "winuser.h" #include "wine/debug.h" -#include "storage32.h" #include "ole2.h" /* For Write/ReadClassStm */ #include "winreg.h" @@ -52,8944 +51,7 @@ WINE_DEFAULT_DEBUG_CHANNEL(storage); - -/* - * These are signatures to detect the type of Document file. - */ static const BYTE STORAGE_magic[8] ={0xd0,0xcf,0x11,0xe0,0xa1,0xb1,0x1a,0xe1}; -static const BYTE STORAGE_oldmagic[8] ={0xd0,0xcf,0x11,0xe0,0x0e,0x11,0xfc,0x0d}; - -extern const IPropertySetStorageVtbl IPropertySetStorage_Vtbl; - - -/**************************************************************************** - * StorageInternalImpl definitions. - * - * Definition of the implementation structure for the IStorage interface. - * This one implements the IStorage interface for storage that are - * inside another storage. - */ -typedef struct StorageInternalImpl -{ - struct StorageBaseImpl base; - - /* - * Entry in the parent's stream tracking list - */ - struct list ParentListEntry; - - StorageBaseImpl *parentStorage; -} StorageInternalImpl; - -static const IStorageVtbl StorageInternalImpl_Vtbl; -static StorageInternalImpl* StorageInternalImpl_Construct(StorageBaseImpl*,DWORD,DirRef); - -typedef struct TransactedDirEntry -{ - /* If applicable, a reference to the original DirEntry in the transacted - * parent. If this is a newly-created entry, DIRENTRY_NULL. */ - DirRef transactedParentEntry; - - /* True if this entry is being used. */ - BOOL inuse; - - /* True if data is up to date. */ - BOOL read; - - /* True if this entry has been modified. */ - BOOL dirty; - - /* True if this entry's stream has been modified. */ - BOOL stream_dirty; - - /* True if this entry has been deleted in the transacted storage, but the - * delete has not yet been committed. */ - BOOL deleted; - - /* If this entry's stream has been modified, a reference to where the stream - * is stored in the snapshot file. */ - DirRef stream_entry; - - /* This directory entry's data, including any changes that have been made. */ - DirEntry data; - - /* A reference to the parent of this node. This is only valid while we are - * committing changes. */ - DirRef parent; - - /* A reference to a newly-created entry in the transacted parent. This is - * always equal to transactedParentEntry except when committing changes. */ - DirRef newTransactedParentEntry; -} TransactedDirEntry; - - -/**************************************************************************** - * Transacted storage object. - */ -typedef struct TransactedSnapshotImpl -{ - struct StorageBaseImpl base; - - /* - * Modified streams are temporarily saved to the scratch file. - */ - StorageBaseImpl *scratch; - - /* The directory structure is kept here, so that we can track how these - * entries relate to those in the parent storage. */ - TransactedDirEntry *entries; - ULONG entries_size; - ULONG firstFreeEntry; - - /* - * Changes are committed to the transacted parent. - */ - StorageBaseImpl *transactedParent; - - /* The transaction signature from when we last committed */ - ULONG lastTransactionSig; -} TransactedSnapshotImpl; - -static const IStorageVtbl TransactedSnapshotImpl_Vtbl; -static HRESULT Storage_ConstructTransacted(StorageBaseImpl*,BOOL,StorageBaseImpl**); - -typedef struct TransactedSharedImpl -{ - struct StorageBaseImpl base; - - /* - * Snapshot and uncommitted changes go here. - */ - TransactedSnapshotImpl *scratch; - - /* - * Changes are committed to the transacted parent. - */ - StorageBaseImpl *transactedParent; - - /* The transaction signature from when we last committed */ - ULONG lastTransactionSig; -} TransactedSharedImpl; - - -/**************************************************************************** - * BlockChainStream definitions. - * - * The BlockChainStream class is a utility class that is used to create an - * abstraction of the big block chains in the storage file. - */ - -struct BlockChainRun -{ - /* This represents a range of blocks that happen reside in consecutive sectors. */ - ULONG firstSector; - ULONG firstOffset; - ULONG lastOffset; -}; - -typedef struct BlockChainBlock -{ - ULONG index; - ULONG sector; - BOOL read; - BOOL dirty; - BYTE data[MAX_BIG_BLOCK_SIZE]; -} BlockChainBlock; - -struct BlockChainStream -{ - StorageImpl* parentStorage; - ULONG* headOfStreamPlaceHolder; - DirRef ownerDirEntry; - struct BlockChainRun* indexCache; - ULONG indexCacheLen; - ULONG indexCacheSize; - BlockChainBlock cachedBlocks[2]; - ULONG blockToEvict; - ULONG tailIndex; - ULONG numBlocks; -}; - -/* Returns the number of blocks that comprises this chain. - * This is not the size of the stream as the last block may not be full! - */ -static inline ULONG BlockChainStream_GetCount(BlockChainStream* This) -{ - return This->numBlocks; -} - -static BlockChainStream* BlockChainStream_Construct(StorageImpl*,ULONG*,DirRef); -static void BlockChainStream_Destroy(BlockChainStream*); -static HRESULT BlockChainStream_ReadAt(BlockChainStream*,ULARGE_INTEGER,ULONG,void*,ULONG*); -static HRESULT BlockChainStream_WriteAt(BlockChainStream*,ULARGE_INTEGER,ULONG,const void*,ULONG*); -static HRESULT BlockChainStream_Flush(BlockChainStream*); -static ULARGE_INTEGER BlockChainStream_GetSize(BlockChainStream*); -static BOOL BlockChainStream_SetSize(BlockChainStream*,ULARGE_INTEGER); - - -/**************************************************************************** - * SmallBlockChainStream definitions. - * - * The SmallBlockChainStream class is a utility class that is used to create an - * abstraction of the small block chains in the storage file. - */ - -struct SmallBlockChainStream -{ - StorageImpl* parentStorage; - DirRef ownerDirEntry; - ULONG* headOfStreamPlaceHolder; -}; - -static SmallBlockChainStream* SmallBlockChainStream_Construct(StorageImpl*,ULONG*,DirRef); -static void SmallBlockChainStream_Destroy(SmallBlockChainStream*); -static HRESULT SmallBlockChainStream_ReadAt(SmallBlockChainStream*,ULARGE_INTEGER,ULONG,void*,ULONG*); -static HRESULT SmallBlockChainStream_WriteAt(SmallBlockChainStream*,ULARGE_INTEGER,ULONG,const void*,ULONG*); -static ULARGE_INTEGER SmallBlockChainStream_GetSize(SmallBlockChainStream*); -static BOOL SmallBlockChainStream_SetSize(SmallBlockChainStream*,ULARGE_INTEGER); - - -/************************************************************************ - * STGM Functions - ***********************************************************************/ - -/************************************************************************ - * This method validates an STGM parameter that can contain the values below - * - * The stgm modes in 0x0000ffff are not bit masks, but distinct 4 bit values. - * The stgm values contained in 0xffff0000 are bitmasks. - * - * STGM_DIRECT 0x00000000 - * STGM_TRANSACTED 0x00010000 - * STGM_SIMPLE 0x08000000 - * - * STGM_READ 0x00000000 - * STGM_WRITE 0x00000001 - * STGM_READWRITE 0x00000002 - * - * STGM_SHARE_DENY_NONE 0x00000040 - * STGM_SHARE_DENY_READ 0x00000030 - * STGM_SHARE_DENY_WRITE 0x00000020 - * STGM_SHARE_EXCLUSIVE 0x00000010 - * - * STGM_PRIORITY 0x00040000 - * STGM_DELETEONRELEASE 0x04000000 - * - * STGM_CREATE 0x00001000 - * STGM_CONVERT 0x00020000 - * STGM_FAILIFTHERE 0x00000000 - * - * STGM_NOSCRATCH 0x00100000 - * STGM_NOSNAPSHOT 0x00200000 - */ -static HRESULT validateSTGM(DWORD stgm) -{ - DWORD access = STGM_ACCESS_MODE(stgm); - DWORD share = STGM_SHARE_MODE(stgm); - DWORD create = STGM_CREATE_MODE(stgm); - - if (stgm&~STGM_KNOWN_FLAGS) - { - ERR("unknown flags %#lx\n", stgm); - return E_FAIL; - } - - switch (access) - { - case STGM_READ: - case STGM_WRITE: - case STGM_READWRITE: - break; - default: - return E_FAIL; - } - - switch (share) - { - case STGM_SHARE_DENY_NONE: - case STGM_SHARE_DENY_READ: - case STGM_SHARE_DENY_WRITE: - case STGM_SHARE_EXCLUSIVE: - break; - case 0: - if (!(stgm & STGM_TRANSACTED)) - return E_FAIL; - break; - default: - return E_FAIL; - } - - switch (create) - { - case STGM_CREATE: - case STGM_FAILIFTHERE: - break; - default: - return E_FAIL; - } - - /* - * STGM_DIRECT | STGM_TRANSACTED | STGM_SIMPLE - */ - if ( (stgm & STGM_TRANSACTED) && (stgm & STGM_SIMPLE) ) - return E_FAIL; - - /* - * STGM_CREATE | STGM_CONVERT - * if both are false, STGM_FAILIFTHERE is set to TRUE - */ - if ( create == STGM_CREATE && (stgm & STGM_CONVERT) ) - return E_FAIL; - - /* - * STGM_NOSCRATCH requires STGM_TRANSACTED - */ - if ( (stgm & STGM_NOSCRATCH) && !(stgm & STGM_TRANSACTED) ) - return E_FAIL; - - /* - * STGM_NOSNAPSHOT requires STGM_TRANSACTED and - * not STGM_SHARE_EXCLUSIVE or STGM_SHARE_DENY_WRITE` - */ - if ( (stgm & STGM_NOSNAPSHOT) && - (!(stgm & STGM_TRANSACTED) || - share == STGM_SHARE_EXCLUSIVE || - share == STGM_SHARE_DENY_WRITE) ) - return E_FAIL; - - return S_OK; -} - -/************************************************************************ - * GetShareModeFromSTGM - * - * This method will return a share mode flag from a STGM value. - * The STGM value is assumed valid. - */ -static DWORD GetShareModeFromSTGM(DWORD stgm) -{ - switch (STGM_SHARE_MODE(stgm)) - { - case 0: - assert(stgm & STGM_TRANSACTED); - /* fall-through */ - case STGM_SHARE_DENY_NONE: - return FILE_SHARE_READ | FILE_SHARE_WRITE; - case STGM_SHARE_DENY_READ: - return FILE_SHARE_WRITE; - case STGM_SHARE_DENY_WRITE: - case STGM_SHARE_EXCLUSIVE: - return FILE_SHARE_READ; - } - ERR("Invalid share mode!\n"); - assert(0); - return 0; -} - -/************************************************************************ - * GetAccessModeFromSTGM - * - * This method will return an access mode flag from a STGM value. - * The STGM value is assumed valid. - */ -static DWORD GetAccessModeFromSTGM(DWORD stgm) -{ - switch (STGM_ACCESS_MODE(stgm)) - { - case STGM_READ: - return GENERIC_READ; - case STGM_WRITE: - case STGM_READWRITE: - return GENERIC_READ | GENERIC_WRITE; - } - ERR("Invalid access mode!\n"); - assert(0); - return 0; -} - -/************************************************************************ - * GetCreationModeFromSTGM - * - * This method will return a creation mode flag from a STGM value. - * The STGM value is assumed valid. - */ -static DWORD GetCreationModeFromSTGM(DWORD stgm) -{ - switch(STGM_CREATE_MODE(stgm)) - { - case STGM_CREATE: - return CREATE_ALWAYS; - case STGM_CONVERT: - FIXME("STGM_CONVERT not implemented!\n"); - return CREATE_NEW; - case STGM_FAILIFTHERE: - return CREATE_NEW; - } - ERR("Invalid create mode!\n"); - assert(0); - return 0; -} - - -/************************************************************************ - * IDirectWriterLock implementation - ***********************************************************************/ - -static inline StorageBaseImpl *impl_from_IDirectWriterLock( IDirectWriterLock *iface ) -{ - return CONTAINING_RECORD(iface, StorageBaseImpl, IDirectWriterLock_iface); -} - -static HRESULT WINAPI directwriterlock_QueryInterface(IDirectWriterLock *iface, REFIID riid, void **obj) -{ - StorageBaseImpl *This = impl_from_IDirectWriterLock(iface); - return IStorage_QueryInterface(&This->IStorage_iface, riid, obj); -} - -static ULONG WINAPI directwriterlock_AddRef(IDirectWriterLock *iface) -{ - StorageBaseImpl *This = impl_from_IDirectWriterLock(iface); - return IStorage_AddRef(&This->IStorage_iface); -} - -static ULONG WINAPI directwriterlock_Release(IDirectWriterLock *iface) -{ - StorageBaseImpl *This = impl_from_IDirectWriterLock(iface); - return IStorage_Release(&This->IStorage_iface); -} - -static HRESULT WINAPI directwriterlock_WaitForWriteAccess(IDirectWriterLock *iface, DWORD timeout) -{ - StorageBaseImpl *This = impl_from_IDirectWriterLock(iface); - FIXME("%p, %ld: stub\n", This, timeout); - return E_NOTIMPL; -} - -static HRESULT WINAPI directwriterlock_ReleaseWriteAccess(IDirectWriterLock *iface) -{ - StorageBaseImpl *This = impl_from_IDirectWriterLock(iface); - FIXME("(%p): stub\n", This); - return E_NOTIMPL; -} - -static HRESULT WINAPI directwriterlock_HaveWriteAccess(IDirectWriterLock *iface) -{ - StorageBaseImpl *This = impl_from_IDirectWriterLock(iface); - FIXME("(%p): stub\n", This); - return E_NOTIMPL; -} - -static const IDirectWriterLockVtbl DirectWriterLockVtbl = -{ - directwriterlock_QueryInterface, - directwriterlock_AddRef, - directwriterlock_Release, - directwriterlock_WaitForWriteAccess, - directwriterlock_ReleaseWriteAccess, - directwriterlock_HaveWriteAccess -}; - - -/************************************************************************ - * StorageBaseImpl implementation : Tree helper functions - ***********************************************************************/ - -/**************************************************************************** - * - * Internal Method - * - * Case insensitive comparison of DirEntry.name by first considering - * their size. - * - * Returns <0 when name1 < name2 - * >0 when name1 > name2 - * 0 when name1 == name2 - */ -static LONG entryNameCmp( - const OLECHAR *name1, - const OLECHAR *name2) -{ - LONG diff = lstrlenW(name1) - lstrlenW(name2); - - while (diff == 0 && *name1 != 0) - { - /* - * We compare the string themselves only when they are of the same length - */ - diff = towupper(*name1++) - towupper(*name2++); - } - - return diff; -} - -/**************************************************************************** - * - * Internal Method - * - * Find and read the element of a storage with the given name. - */ -static DirRef findElement(StorageBaseImpl *storage, DirRef storageEntry, - const OLECHAR *name, DirEntry *data) -{ - DirRef currentEntry; - - /* Read the storage entry to find the root of the tree. */ - StorageBaseImpl_ReadDirEntry(storage, storageEntry, data); - - currentEntry = data->dirRootEntry; - - while (currentEntry != DIRENTRY_NULL) - { - LONG cmp; - - StorageBaseImpl_ReadDirEntry(storage, currentEntry, data); - - cmp = entryNameCmp(name, data->name); - - if (cmp == 0) - /* found it */ - break; - - else if (cmp < 0) - currentEntry = data->leftChild; - - else if (cmp > 0) - currentEntry = data->rightChild; - } - - return currentEntry; -} - -/**************************************************************************** - * - * Internal Method - * - * Find and read the binary tree parent of the element with the given name. - * - * If there is no such element, find a place where it could be inserted and - * return STG_E_FILENOTFOUND. - */ -static HRESULT findTreeParent(StorageBaseImpl *storage, DirRef storageEntry, - const OLECHAR *childName, DirEntry *parentData, DirRef *parentEntry, - ULONG *relation) -{ - DirRef childEntry; - DirEntry childData; - - /* Read the storage entry to find the root of the tree. */ - StorageBaseImpl_ReadDirEntry(storage, storageEntry, parentData); - - *parentEntry = storageEntry; - *relation = DIRENTRY_RELATION_DIR; - - childEntry = parentData->dirRootEntry; - - while (childEntry != DIRENTRY_NULL) - { - LONG cmp; - - StorageBaseImpl_ReadDirEntry(storage, childEntry, &childData); - - cmp = entryNameCmp(childName, childData.name); - - if (cmp == 0) - /* found it */ - break; - - else if (cmp < 0) - { - *parentData = childData; - *parentEntry = childEntry; - *relation = DIRENTRY_RELATION_PREVIOUS; - - childEntry = parentData->leftChild; - } - - else if (cmp > 0) - { - *parentData = childData; - *parentEntry = childEntry; - *relation = DIRENTRY_RELATION_NEXT; - - childEntry = parentData->rightChild; - } - } - - if (childEntry == DIRENTRY_NULL) - return STG_E_FILENOTFOUND; - else - return S_OK; -} - -static void setEntryLink(DirEntry *entry, ULONG relation, DirRef new_target) -{ - switch (relation) - { - case DIRENTRY_RELATION_PREVIOUS: - entry->leftChild = new_target; - break; - case DIRENTRY_RELATION_NEXT: - entry->rightChild = new_target; - break; - case DIRENTRY_RELATION_DIR: - entry->dirRootEntry = new_target; - break; - default: - assert(0); - } -} - -/**************************************************************************** - * - * Internal Method - * - * Add a directory entry to a storage - */ -static HRESULT insertIntoTree( - StorageBaseImpl *This, - DirRef parentStorageIndex, - DirRef newEntryIndex) -{ - DirEntry currentEntry; - DirEntry newEntry; - - /* - * Read the inserted entry - */ - StorageBaseImpl_ReadDirEntry(This, - newEntryIndex, - &newEntry); - - /* - * Read the storage entry - */ - StorageBaseImpl_ReadDirEntry(This, - parentStorageIndex, - ¤tEntry); - - if (currentEntry.dirRootEntry != DIRENTRY_NULL) - { - /* - * The root storage contains some element, therefore, start the research - * for the appropriate location. - */ - BOOL found = FALSE; - DirRef current, next, previous, currentEntryId; - - /* - * Keep a reference to the root of the storage's element tree - */ - currentEntryId = currentEntry.dirRootEntry; - - /* - * Read - */ - StorageBaseImpl_ReadDirEntry(This, - currentEntry.dirRootEntry, - ¤tEntry); - - previous = currentEntry.leftChild; - next = currentEntry.rightChild; - current = currentEntryId; - - while (!found) - { - LONG diff = entryNameCmp( newEntry.name, currentEntry.name); - - if (diff < 0) - { - if (previous != DIRENTRY_NULL) - { - StorageBaseImpl_ReadDirEntry(This, - previous, - ¤tEntry); - current = previous; - } - else - { - currentEntry.leftChild = newEntryIndex; - StorageBaseImpl_WriteDirEntry(This, - current, - ¤tEntry); - found = TRUE; - } - } - else if (diff > 0) - { - if (next != DIRENTRY_NULL) - { - StorageBaseImpl_ReadDirEntry(This, - next, - ¤tEntry); - current = next; - } - else - { - currentEntry.rightChild = newEntryIndex; - StorageBaseImpl_WriteDirEntry(This, - current, - ¤tEntry); - found = TRUE; - } - } - else - { - /* - * Trying to insert an item with the same name in the - * subtree structure. - */ - return STG_E_FILEALREADYEXISTS; - } - - previous = currentEntry.leftChild; - next = currentEntry.rightChild; - } - } - else - { - /* - * The storage is empty, make the new entry the root of its element tree - */ - currentEntry.dirRootEntry = newEntryIndex; - StorageBaseImpl_WriteDirEntry(This, - parentStorageIndex, - ¤tEntry); - } - - return S_OK; -} - -/************************************************************************* - * - * Internal Method - * - * This method removes a directory entry from its parent storage tree without - * freeing any resources attached to it. - */ -static HRESULT removeFromTree( - StorageBaseImpl *This, - DirRef parentStorageIndex, - DirRef deletedIndex) -{ - DirEntry entryToDelete; - DirEntry parentEntry; - DirRef parentEntryRef; - ULONG typeOfRelation; - HRESULT hr; - - hr = StorageBaseImpl_ReadDirEntry(This, deletedIndex, &entryToDelete); - - if (hr != S_OK) - return hr; - - /* - * Find the element that links to the one we want to delete. - */ - hr = findTreeParent(This, parentStorageIndex, entryToDelete.name, - &parentEntry, &parentEntryRef, &typeOfRelation); - - if (hr != S_OK) - return hr; - - if (entryToDelete.leftChild != DIRENTRY_NULL) - { - /* - * Replace the deleted entry with its left child - */ - setEntryLink(&parentEntry, typeOfRelation, entryToDelete.leftChild); - - hr = StorageBaseImpl_WriteDirEntry( - This, - parentEntryRef, - &parentEntry); - if(FAILED(hr)) - { - return hr; - } - - if (entryToDelete.rightChild != DIRENTRY_NULL) - { - /* - * We need to reinsert the right child somewhere. We already know it and - * its children are greater than everything in the left tree, so we - * insert it at the rightmost point in the left tree. - */ - DirRef newRightChildParent = entryToDelete.leftChild; - DirEntry newRightChildParentEntry; - - do - { - hr = StorageBaseImpl_ReadDirEntry( - This, - newRightChildParent, - &newRightChildParentEntry); - if (FAILED(hr)) - { - return hr; - } - - if (newRightChildParentEntry.rightChild != DIRENTRY_NULL) - newRightChildParent = newRightChildParentEntry.rightChild; - } while (newRightChildParentEntry.rightChild != DIRENTRY_NULL); - - newRightChildParentEntry.rightChild = entryToDelete.rightChild; - - hr = StorageBaseImpl_WriteDirEntry( - This, - newRightChildParent, - &newRightChildParentEntry); - if (FAILED(hr)) - { - return hr; - } - } - } - else - { - /* - * Replace the deleted entry with its right child - */ - setEntryLink(&parentEntry, typeOfRelation, entryToDelete.rightChild); - - hr = StorageBaseImpl_WriteDirEntry( - This, - parentEntryRef, - &parentEntry); - if(FAILED(hr)) - { - return hr; - } - } - - return hr; -} - - -/************************************************************************ - * IEnumSTATSTGImpl implementation for StorageBaseImpl_EnumElements - ***********************************************************************/ - -/* - * IEnumSTATSTGImpl definitions. - * - * Definition of the implementation structure for the IEnumSTATSTGImpl interface. - * This class allows iterating through the content of a storage and finding - * specific items inside it. - */ -struct IEnumSTATSTGImpl -{ - IEnumSTATSTG IEnumSTATSTG_iface; - - LONG ref; /* Reference count */ - StorageBaseImpl* parentStorage; /* Reference to the parent storage */ - DirRef storageDirEntry; /* Directory entry of the storage to enumerate */ - - WCHAR name[DIRENTRY_NAME_MAX_LEN]; /* The most recent name visited */ -}; - -static inline IEnumSTATSTGImpl *impl_from_IEnumSTATSTG(IEnumSTATSTG *iface) -{ - return CONTAINING_RECORD(iface, IEnumSTATSTGImpl, IEnumSTATSTG_iface); -} - -static void IEnumSTATSTGImpl_Destroy(IEnumSTATSTGImpl* This) -{ - IStorage_Release(&This->parentStorage->IStorage_iface); - HeapFree(GetProcessHeap(), 0, This); -} - -static HRESULT WINAPI IEnumSTATSTGImpl_QueryInterface( - IEnumSTATSTG* iface, - REFIID riid, - void** ppvObject) -{ - IEnumSTATSTGImpl* const This = impl_from_IEnumSTATSTG(iface); - - TRACE("%p,%s,%p\n", iface, debugstr_guid(riid), ppvObject); - - if (ppvObject==0) - return E_INVALIDARG; - - *ppvObject = 0; - - if (IsEqualGUID(&IID_IUnknown, riid) || - IsEqualGUID(&IID_IEnumSTATSTG, riid)) - { - *ppvObject = &This->IEnumSTATSTG_iface; - IEnumSTATSTG_AddRef(&This->IEnumSTATSTG_iface); - TRACE("<-- %p\n", *ppvObject); - return S_OK; - } - - TRACE("<-- E_NOINTERFACE\n"); - return E_NOINTERFACE; -} - -static ULONG WINAPI IEnumSTATSTGImpl_AddRef( - IEnumSTATSTG* iface) -{ - IEnumSTATSTGImpl* const This = impl_from_IEnumSTATSTG(iface); - return InterlockedIncrement(&This->ref); -} - -static ULONG WINAPI IEnumSTATSTGImpl_Release( - IEnumSTATSTG* iface) -{ - IEnumSTATSTGImpl* const This = impl_from_IEnumSTATSTG(iface); - - ULONG newRef; - - newRef = InterlockedDecrement(&This->ref); - - if (newRef==0) - { - IEnumSTATSTGImpl_Destroy(This); - } - - return newRef; -} - -static HRESULT IEnumSTATSTGImpl_GetNextRef( - IEnumSTATSTGImpl* This, - DirRef *ref) -{ - DirRef result = DIRENTRY_NULL; - DirRef searchNode; - DirEntry entry; - HRESULT hr; - WCHAR result_name[DIRENTRY_NAME_MAX_LEN]; - - TRACE("%p,%p\n", This, ref); - - hr = StorageBaseImpl_ReadDirEntry(This->parentStorage, - This->parentStorage->storageDirEntry, &entry); - searchNode = entry.dirRootEntry; - - while (SUCCEEDED(hr) && searchNode != DIRENTRY_NULL) - { - hr = StorageBaseImpl_ReadDirEntry(This->parentStorage, searchNode, &entry); - - if (SUCCEEDED(hr)) - { - LONG diff = entryNameCmp( entry.name, This->name); - - if (diff <= 0) - { - searchNode = entry.rightChild; - } - else - { - result = searchNode; - memcpy(result_name, entry.name, sizeof(result_name)); - searchNode = entry.leftChild; - } - } - } - - if (SUCCEEDED(hr)) - { - *ref = result; - if (result != DIRENTRY_NULL) - memcpy(This->name, result_name, sizeof(result_name)); - } - - TRACE("<-- %#lx\n", hr); - return hr; -} - -static HRESULT WINAPI IEnumSTATSTGImpl_Next( - IEnumSTATSTG* iface, - ULONG celt, - STATSTG* rgelt, - ULONG* pceltFetched) -{ - IEnumSTATSTGImpl* const This = impl_from_IEnumSTATSTG(iface); - - DirEntry currentEntry; - STATSTG* currentReturnStruct = rgelt; - ULONG objectFetched = 0; - DirRef currentSearchNode; - HRESULT hr=S_OK; - - TRACE("%p, %lu, %p, %p.\n", iface, celt, rgelt, pceltFetched); - - if ( (rgelt==0) || ( (celt!=1) && (pceltFetched==0) ) ) - return E_INVALIDARG; - - if (This->parentStorage->reverted) - { - TRACE("<-- STG_E_REVERTED\n"); - return STG_E_REVERTED; - } - - /* - * To avoid the special case, get another pointer to a ULONG value if - * the caller didn't supply one. - */ - if (pceltFetched==0) - pceltFetched = &objectFetched; - - /* - * Start the iteration, we will iterate until we hit the end of the - * linked list or until we hit the number of items to iterate through - */ - *pceltFetched = 0; - - while ( *pceltFetched < celt ) - { - hr = IEnumSTATSTGImpl_GetNextRef(This, ¤tSearchNode); - - if (FAILED(hr) || currentSearchNode == DIRENTRY_NULL) - { - memset(currentReturnStruct, 0, sizeof(*currentReturnStruct)); - break; - } - - /* - * Read the entry from the storage. - */ - hr = StorageBaseImpl_ReadDirEntry(This->parentStorage, - currentSearchNode, - ¤tEntry); - if (FAILED(hr)) break; - - /* - * Copy the information to the return buffer. - */ - StorageUtl_CopyDirEntryToSTATSTG(This->parentStorage, - currentReturnStruct, - ¤tEntry, - STATFLAG_DEFAULT); - - /* - * Step to the next item in the iteration - */ - (*pceltFetched)++; - currentReturnStruct++; - } - - if (SUCCEEDED(hr) && *pceltFetched != celt) - hr = S_FALSE; - - TRACE("<-- %#lx (asked %lu, got %lu)\n", hr, celt, *pceltFetched); - return hr; -} - - -static HRESULT WINAPI IEnumSTATSTGImpl_Skip( - IEnumSTATSTG* iface, - ULONG celt) -{ - IEnumSTATSTGImpl* const This = impl_from_IEnumSTATSTG(iface); - - ULONG objectFetched = 0; - DirRef currentSearchNode; - HRESULT hr=S_OK; - - TRACE("%p, %lu.\n", iface, celt); - - if (This->parentStorage->reverted) - { - TRACE("<-- STG_E_REVERTED\n"); - return STG_E_REVERTED; - } - - while ( (objectFetched < celt) ) - { - hr = IEnumSTATSTGImpl_GetNextRef(This, ¤tSearchNode); - - if (FAILED(hr) || currentSearchNode == DIRENTRY_NULL) - break; - - objectFetched++; - } - - if (SUCCEEDED(hr) && objectFetched != celt) - return S_FALSE; - - TRACE("<-- %#lx\n", hr); - return hr; -} - -static HRESULT WINAPI IEnumSTATSTGImpl_Reset( - IEnumSTATSTG* iface) -{ - IEnumSTATSTGImpl* const This = impl_from_IEnumSTATSTG(iface); - - TRACE("%p\n", iface); - - if (This->parentStorage->reverted) - { - TRACE("<-- STG_E_REVERTED\n"); - return STG_E_REVERTED; - } - - This->name[0] = 0; - - return S_OK; -} - -static IEnumSTATSTGImpl* IEnumSTATSTGImpl_Construct(StorageBaseImpl*,DirRef); - -static HRESULT WINAPI IEnumSTATSTGImpl_Clone( - IEnumSTATSTG* iface, - IEnumSTATSTG** ppenum) -{ - IEnumSTATSTGImpl* const This = impl_from_IEnumSTATSTG(iface); - IEnumSTATSTGImpl* newClone; - - TRACE("%p,%p\n", iface, ppenum); - - if (This->parentStorage->reverted) - { - TRACE("<-- STG_E_REVERTED\n"); - return STG_E_REVERTED; - } - - if (ppenum==0) - return E_INVALIDARG; - - newClone = IEnumSTATSTGImpl_Construct(This->parentStorage, - This->storageDirEntry); - if (!newClone) - { - *ppenum = NULL; - return E_OUTOFMEMORY; - } - - /* - * The new clone enumeration must point to the same current node as - * the old one. - */ - memcpy(newClone->name, This->name, sizeof(newClone->name)); - - *ppenum = &newClone->IEnumSTATSTG_iface; - - return S_OK; -} - -/* - * Virtual function table for the IEnumSTATSTGImpl class. - */ -static const IEnumSTATSTGVtbl IEnumSTATSTGImpl_Vtbl = -{ - IEnumSTATSTGImpl_QueryInterface, - IEnumSTATSTGImpl_AddRef, - IEnumSTATSTGImpl_Release, - IEnumSTATSTGImpl_Next, - IEnumSTATSTGImpl_Skip, - IEnumSTATSTGImpl_Reset, - IEnumSTATSTGImpl_Clone -}; - -static IEnumSTATSTGImpl* IEnumSTATSTGImpl_Construct( - StorageBaseImpl* parentStorage, - DirRef storageDirEntry) -{ - IEnumSTATSTGImpl* newEnumeration; - - newEnumeration = HeapAlloc(GetProcessHeap(), 0, sizeof(IEnumSTATSTGImpl)); - - if (newEnumeration) - { - newEnumeration->IEnumSTATSTG_iface.lpVtbl = &IEnumSTATSTGImpl_Vtbl; - newEnumeration->ref = 1; - newEnumeration->name[0] = 0; - - /* - * We want to nail-down the reference to the storage in case the - * enumeration out-lives the storage in the client application. - */ - newEnumeration->parentStorage = parentStorage; - IStorage_AddRef(&newEnumeration->parentStorage->IStorage_iface); - - newEnumeration->storageDirEntry = storageDirEntry; - } - - return newEnumeration; -} - - -/************************************************************************ - * StorageBaseImpl implementation - ***********************************************************************/ - -static inline StorageBaseImpl *impl_from_IStorage( IStorage *iface ) -{ - return CONTAINING_RECORD(iface, StorageBaseImpl, IStorage_iface); -} - -/************************************************************************ - * StorageBaseImpl_QueryInterface (IUnknown) - * - * This method implements the common QueryInterface for all IStorage - * implementations contained in this file. - * - * See Windows documentation for more details on IUnknown methods. - */ -static HRESULT WINAPI StorageBaseImpl_QueryInterface( - IStorage* iface, - REFIID riid, - void** ppvObject) -{ - StorageBaseImpl *This = impl_from_IStorage(iface); - - TRACE("%p,%s,%p\n", iface, debugstr_guid(riid), ppvObject); - - if (!ppvObject) - return E_INVALIDARG; - - *ppvObject = 0; - - if (IsEqualGUID(&IID_IUnknown, riid) || - IsEqualGUID(&IID_IStorage, riid)) - { - *ppvObject = &This->IStorage_iface; - } - else if (IsEqualGUID(&IID_IPropertySetStorage, riid)) - { - *ppvObject = &This->IPropertySetStorage_iface; - } - /* locking interface is reported for writer only */ - else if (IsEqualGUID(&IID_IDirectWriterLock, riid) && This->lockingrole == SWMR_Writer) - { - *ppvObject = &This->IDirectWriterLock_iface; - } - else - { - TRACE("<-- E_NOINTERFACE\n"); - return E_NOINTERFACE; - } - - IStorage_AddRef(iface); - TRACE("<-- %p\n", *ppvObject); - return S_OK; -} - -/************************************************************************ - * StorageBaseImpl_AddRef (IUnknown) - * - * This method implements the common AddRef for all IStorage - * implementations contained in this file. - * - * See Windows documentation for more details on IUnknown methods. - */ -static ULONG WINAPI StorageBaseImpl_AddRef( - IStorage* iface) -{ - StorageBaseImpl *This = impl_from_IStorage(iface); - ULONG ref = InterlockedIncrement(&This->ref); - - TRACE("%p, refcount %lu.\n", iface, ref); - - return ref; -} - -/************************************************************************ - * StorageBaseImpl_Release (IUnknown) - * - * This method implements the common Release for all IStorage - * implementations contained in this file. - * - * See Windows documentation for more details on IUnknown methods. - */ -static ULONG WINAPI StorageBaseImpl_Release( - IStorage* iface) -{ - StorageBaseImpl *This = impl_from_IStorage(iface); - - ULONG ref = InterlockedDecrement(&This->ref); - - TRACE("%p, refcount %lu.\n", iface, ref); - - if (ref == 0) - { - /* - * Since we are using a system of base-classes, we want to call the - * destructor of the appropriate derived class. To do this, we are - * using virtual functions to implement the destructor. - */ - StorageBaseImpl_Destroy(This); - } - - return ref; -} - -static HRESULT StorageBaseImpl_CopyStorageEntryTo(StorageBaseImpl *This, - DirRef srcEntry, BOOL skip_storage, BOOL skip_stream, - SNB snbExclude, IStorage *pstgDest); - -static HRESULT StorageBaseImpl_CopyChildEntryTo(StorageBaseImpl *This, - DirRef srcEntry, BOOL skip_storage, BOOL skip_stream, - SNB snbExclude, IStorage *pstgDest) -{ - DirEntry data; - HRESULT hr; - BOOL skip = FALSE; - IStorage *pstgTmp; - IStream *pstrChild, *pstrTmp; - STATSTG strStat; - - if (srcEntry == DIRENTRY_NULL) - return S_OK; - - hr = StorageBaseImpl_ReadDirEntry( This, srcEntry, &data ); - - if (FAILED(hr)) - return hr; - - if ( snbExclude ) - { - WCHAR **snb = snbExclude; - - while ( *snb != NULL && !skip ) - { - if ( wcscmp(data.name, *snb) == 0 ) - skip = TRUE; - ++snb; - } - } - - if (!skip) - { - if (data.stgType == STGTY_STORAGE && !skip_storage) - { - /* - * create a new storage in destination storage - */ - hr = IStorage_CreateStorage( pstgDest, data.name, - STGM_FAILIFTHERE|STGM_WRITE|STGM_SHARE_EXCLUSIVE, - 0, 0, - &pstgTmp ); - - /* - * if it already exist, don't create a new one use this one - */ - if (hr == STG_E_FILEALREADYEXISTS) - { - hr = IStorage_OpenStorage( pstgDest, data.name, NULL, - STGM_WRITE|STGM_SHARE_EXCLUSIVE, - NULL, 0, &pstgTmp ); - } - - if (SUCCEEDED(hr)) - { - hr = StorageBaseImpl_CopyStorageEntryTo( This, srcEntry, skip_storage, - skip_stream, NULL, pstgTmp ); - - IStorage_Release(pstgTmp); - } - } - else if (data.stgType == STGTY_STREAM && !skip_stream) - { - /* - * create a new stream in destination storage. If the stream already - * exist, it will be deleted and a new one will be created. - */ - hr = IStorage_CreateStream( pstgDest, data.name, - STGM_CREATE|STGM_WRITE|STGM_SHARE_EXCLUSIVE, - 0, 0, &pstrTmp ); - - /* - * open child stream storage. This operation must succeed even if the - * stream is already open, so we use internal functions to do it. - */ - if (hr == S_OK) - { - StgStreamImpl *streamimpl = StgStreamImpl_Construct(This, STGM_READ|STGM_SHARE_EXCLUSIVE, srcEntry); - - if (streamimpl) - { - pstrChild = &streamimpl->IStream_iface; - if (pstrChild) - IStream_AddRef(pstrChild); - } - else - { - pstrChild = NULL; - hr = E_OUTOFMEMORY; - } - } - - if (hr == S_OK) - { - /* - * Get the size of the source stream - */ - IStream_Stat( pstrChild, &strStat, STATFLAG_NONAME ); - - /* - * Set the size of the destination stream. - */ - IStream_SetSize(pstrTmp, strStat.cbSize); - - /* - * do the copy - */ - hr = IStream_CopyTo( pstrChild, pstrTmp, strStat.cbSize, - NULL, NULL ); - - IStream_Release( pstrChild ); - } - - IStream_Release( pstrTmp ); - } - } - - /* copy siblings */ - if (SUCCEEDED(hr)) - hr = StorageBaseImpl_CopyChildEntryTo( This, data.leftChild, skip_storage, - skip_stream, snbExclude, pstgDest ); - - if (SUCCEEDED(hr)) - hr = StorageBaseImpl_CopyChildEntryTo( This, data.rightChild, skip_storage, - skip_stream, snbExclude, pstgDest ); - - TRACE("<-- %#lx\n", hr); - return hr; -} - -static BOOL StorageBaseImpl_IsStreamOpen(StorageBaseImpl * stg, DirRef streamEntry) -{ - StgStreamImpl *strm; - - TRACE("%p, %ld.\n", stg, streamEntry); - - LIST_FOR_EACH_ENTRY(strm, &stg->strmHead, StgStreamImpl, StrmListEntry) - { - if (strm->dirEntry == streamEntry) - { - return TRUE; - } - } - - return FALSE; -} - -static BOOL StorageBaseImpl_IsStorageOpen(StorageBaseImpl * stg, DirRef storageEntry) -{ - StorageInternalImpl *childstg; - - TRACE("%p, %ld.\n", stg, storageEntry); - - LIST_FOR_EACH_ENTRY(childstg, &stg->storageHead, StorageInternalImpl, ParentListEntry) - { - if (childstg->base.storageDirEntry == storageEntry) - { - return TRUE; - } - } - - return FALSE; -} - -/************************************************************************ - * StorageBaseImpl_OpenStream (IStorage) - * - * This method will open the specified stream object from the current storage. - * - * See Windows documentation for more details on IStorage methods. - */ -static HRESULT WINAPI StorageBaseImpl_OpenStream( - IStorage* iface, - const OLECHAR* pwcsName, /* [string][in] */ - void* reserved1, /* [unique][in] */ - DWORD grfMode, /* [in] */ - DWORD reserved2, /* [in] */ - IStream** ppstm) /* [out] */ -{ - StorageBaseImpl *This = impl_from_IStorage(iface); - StgStreamImpl* newStream; - DirEntry currentEntry; - DirRef streamEntryRef; - HRESULT res = STG_E_UNKNOWN; - - TRACE("%p, %s, %p, %#lx, %ld, %p.\n", iface, debugstr_w(pwcsName), reserved1, grfMode, reserved2, ppstm); - - if ( (pwcsName==NULL) || (ppstm==0) ) - { - res = E_INVALIDARG; - goto end; - } - - *ppstm = NULL; - - if ( FAILED( validateSTGM(grfMode) ) || - STGM_SHARE_MODE(grfMode) != STGM_SHARE_EXCLUSIVE) - { - res = STG_E_INVALIDFLAG; - goto end; - } - - /* - * As documented. - */ - if ( (grfMode & STGM_DELETEONRELEASE) || (grfMode & STGM_TRANSACTED) ) - { - res = STG_E_INVALIDFUNCTION; - goto end; - } - - if (This->reverted) - { - res = STG_E_REVERTED; - goto end; - } - - /* - * Check that we're compatible with the parent's storage mode, but - * only if we are not in transacted mode - */ - if(!(This->openFlags & STGM_TRANSACTED)) { - if ( STGM_ACCESS_MODE( grfMode ) > STGM_ACCESS_MODE( This->openFlags ) ) - { - res = STG_E_INVALIDFLAG; - goto end; - } - } - - /* - * Search for the element with the given name - */ - streamEntryRef = findElement( - This, - This->storageDirEntry, - pwcsName, - ¤tEntry); - - /* - * If it was found, construct the stream object and return a pointer to it. - */ - if ( (streamEntryRef!=DIRENTRY_NULL) && - (currentEntry.stgType==STGTY_STREAM) ) - { - if (StorageBaseImpl_IsStreamOpen(This, streamEntryRef)) - { - /* A single stream cannot be opened a second time. */ - res = STG_E_ACCESSDENIED; - goto end; - } - - newStream = StgStreamImpl_Construct(This, grfMode, streamEntryRef); - - if (newStream) - { - newStream->grfMode = grfMode; - *ppstm = &newStream->IStream_iface; - - IStream_AddRef(*ppstm); - - res = S_OK; - goto end; - } - - res = E_OUTOFMEMORY; - goto end; - } - - res = STG_E_FILENOTFOUND; - -end: - if (res == S_OK) - TRACE("<-- IStream %p\n", *ppstm); - TRACE("<-- %#lx\n", res); - return res; -} - -/************************************************************************ - * StorageBaseImpl_OpenStorage (IStorage) - * - * This method will open a new storage object from the current storage. - * - * See Windows documentation for more details on IStorage methods. - */ -static HRESULT WINAPI StorageBaseImpl_OpenStorage( - IStorage* iface, - const OLECHAR* pwcsName, /* [string][unique][in] */ - IStorage* pstgPriority, /* [unique][in] */ - DWORD grfMode, /* [in] */ - SNB snbExclude, /* [unique][in] */ - DWORD reserved, /* [in] */ - IStorage** ppstg) /* [out] */ -{ - StorageBaseImpl *This = impl_from_IStorage(iface); - StorageInternalImpl* newStorage; - StorageBaseImpl* newTransactedStorage; - DirEntry currentEntry; - DirRef storageEntryRef; - HRESULT res = STG_E_UNKNOWN; - - TRACE("%p, %s, %p, %#lx, %p, %ld, %p.\n", iface, debugstr_w(pwcsName), pstgPriority, - grfMode, snbExclude, reserved, ppstg); - - if ((pwcsName==NULL) || (ppstg==0) ) - { - res = E_INVALIDARG; - goto end; - } - - if (This->openFlags & STGM_SIMPLE) - { - res = STG_E_INVALIDFUNCTION; - goto end; - } - - /* as documented */ - if (snbExclude != NULL) - { - res = STG_E_INVALIDPARAMETER; - goto end; - } - - if ( FAILED( validateSTGM(grfMode) )) - { - res = STG_E_INVALIDFLAG; - goto end; - } - - /* - * As documented. - */ - if ( STGM_SHARE_MODE(grfMode) != STGM_SHARE_EXCLUSIVE || - (grfMode & STGM_DELETEONRELEASE) || - (grfMode & STGM_PRIORITY) ) - { - res = STG_E_INVALIDFUNCTION; - goto end; - } - - if (This->reverted) - return STG_E_REVERTED; - - /* - * Check that we're compatible with the parent's storage mode, - * but only if we are not transacted - */ - if(!(This->openFlags & STGM_TRANSACTED)) { - if ( STGM_ACCESS_MODE( grfMode ) > STGM_ACCESS_MODE( This->openFlags ) ) - { - res = STG_E_ACCESSDENIED; - goto end; - } - } - - *ppstg = NULL; - - storageEntryRef = findElement( - This, - This->storageDirEntry, - pwcsName, - ¤tEntry); - - if ( (storageEntryRef!=DIRENTRY_NULL) && - (currentEntry.stgType==STGTY_STORAGE) ) - { - if (StorageBaseImpl_IsStorageOpen(This, storageEntryRef)) - { - /* A single storage cannot be opened a second time. */ - res = STG_E_ACCESSDENIED; - goto end; - } - - newStorage = StorageInternalImpl_Construct( - This, - grfMode, - storageEntryRef); - - if (newStorage != 0) - { - if (grfMode & STGM_TRANSACTED) - { - res = Storage_ConstructTransacted(&newStorage->base, FALSE, &newTransactedStorage); - - if (FAILED(res)) - { - HeapFree(GetProcessHeap(), 0, newStorage); - goto end; - } - - *ppstg = &newTransactedStorage->IStorage_iface; - } - else - { - *ppstg = &newStorage->base.IStorage_iface; - } - - list_add_tail(&This->storageHead, &newStorage->ParentListEntry); - - res = S_OK; - goto end; - } - - res = STG_E_INSUFFICIENTMEMORY; - goto end; - } - - res = STG_E_FILENOTFOUND; - -end: - TRACE("<-- %#lx\n", res); - return res; -} - -/************************************************************************ - * StorageBaseImpl_EnumElements (IStorage) - * - * This method will create an enumerator object that can be used to - * retrieve information about all the elements in the storage object. - * - * See Windows documentation for more details on IStorage methods. - */ -static HRESULT WINAPI StorageBaseImpl_EnumElements( - IStorage* iface, - DWORD reserved1, /* [in] */ - void* reserved2, /* [size_is][unique][in] */ - DWORD reserved3, /* [in] */ - IEnumSTATSTG** ppenum) /* [out] */ -{ - StorageBaseImpl *This = impl_from_IStorage(iface); - IEnumSTATSTGImpl* newEnum; - - TRACE("%p, %ld, %p, %ld, %p.\n", iface, reserved1, reserved2, reserved3, ppenum); - - if (!ppenum) - return E_INVALIDARG; - - if (This->reverted) - return STG_E_REVERTED; - - newEnum = IEnumSTATSTGImpl_Construct( - This, - This->storageDirEntry); - - if (newEnum) - { - *ppenum = &newEnum->IEnumSTATSTG_iface; - return S_OK; - } - - return E_OUTOFMEMORY; -} - -/************************************************************************ - * StorageBaseImpl_Stat (IStorage) - * - * This method will retrieve information about this storage object. - * - * See Windows documentation for more details on IStorage methods. - */ -static HRESULT WINAPI StorageBaseImpl_Stat( - IStorage* iface, - STATSTG* pstatstg, /* [out] */ - DWORD grfStatFlag) /* [in] */ -{ - StorageBaseImpl *This = impl_from_IStorage(iface); - DirEntry currentEntry; - HRESULT res = STG_E_UNKNOWN; - - TRACE("%p, %p, %#lx.\n", iface, pstatstg, grfStatFlag); - - if (!pstatstg) - { - res = E_INVALIDARG; - goto end; - } - - if (This->reverted) - { - res = STG_E_REVERTED; - goto end; - } - - res = StorageBaseImpl_ReadDirEntry( - This, - This->storageDirEntry, - ¤tEntry); - - if (SUCCEEDED(res)) - { - StorageUtl_CopyDirEntryToSTATSTG( - This, - pstatstg, - ¤tEntry, - grfStatFlag); - - pstatstg->grfMode = This->openFlags; - pstatstg->grfStateBits = This->stateBits; - } - -end: - if (res == S_OK) - { - TRACE("<-- STATSTG: pwcsName: %s, type: %ld, cbSize.Low/High: %ld/%ld, grfMode: %#lx, grfLocksSupported: %ld, grfStateBits: %#lx\n", debugstr_w(pstatstg->pwcsName), pstatstg->type, pstatstg->cbSize.LowPart, pstatstg->cbSize.HighPart, pstatstg->grfMode, pstatstg->grfLocksSupported, pstatstg->grfStateBits); - } - TRACE("<-- %#lx\n", res); - return res; -} - -/************************************************************************ - * StorageBaseImpl_RenameElement (IStorage) - * - * This method will rename the specified element. - * - * See Windows documentation for more details on IStorage methods. - */ -static HRESULT WINAPI StorageBaseImpl_RenameElement( - IStorage* iface, - const OLECHAR* pwcsOldName, /* [in] */ - const OLECHAR* pwcsNewName) /* [in] */ -{ - StorageBaseImpl *This = impl_from_IStorage(iface); - DirEntry currentEntry; - DirRef currentEntryRef; - - TRACE("(%p, %s, %s)\n", - iface, debugstr_w(pwcsOldName), debugstr_w(pwcsNewName)); - - if (This->reverted) - return STG_E_REVERTED; - - currentEntryRef = findElement(This, - This->storageDirEntry, - pwcsNewName, - ¤tEntry); - - if (currentEntryRef != DIRENTRY_NULL) - { - /* - * There is already an element with the new name - */ - return STG_E_FILEALREADYEXISTS; - } - - /* - * Search for the old element name - */ - currentEntryRef = findElement(This, - This->storageDirEntry, - pwcsOldName, - ¤tEntry); - - if (currentEntryRef != DIRENTRY_NULL) - { - if (StorageBaseImpl_IsStreamOpen(This, currentEntryRef) || - StorageBaseImpl_IsStorageOpen(This, currentEntryRef)) - { - WARN("Element is already open; cannot rename.\n"); - return STG_E_ACCESSDENIED; - } - - /* Remove the element from its current position in the tree */ - removeFromTree(This, This->storageDirEntry, - currentEntryRef); - - /* Change the name of the element */ - lstrcpyW(currentEntry.name, pwcsNewName); - - /* Delete any sibling links */ - currentEntry.leftChild = DIRENTRY_NULL; - currentEntry.rightChild = DIRENTRY_NULL; - - StorageBaseImpl_WriteDirEntry(This, currentEntryRef, - ¤tEntry); - - /* Insert the element in a new position in the tree */ - insertIntoTree(This, This->storageDirEntry, - currentEntryRef); - } - else - { - /* - * There is no element with the old name - */ - return STG_E_FILENOTFOUND; - } - - return StorageBaseImpl_Flush(This); -} - -/************************************************************************ - * StorageBaseImpl_CreateStream (IStorage) - * - * This method will create a stream object within this storage - * - * See Windows documentation for more details on IStorage methods. - */ -static HRESULT WINAPI StorageBaseImpl_CreateStream( - IStorage* iface, - const OLECHAR* pwcsName, /* [string][in] */ - DWORD grfMode, /* [in] */ - DWORD reserved1, /* [in] */ - DWORD reserved2, /* [in] */ - IStream** ppstm) /* [out] */ -{ - StorageBaseImpl *This = impl_from_IStorage(iface); - StgStreamImpl* newStream; - DirEntry currentEntry, newStreamEntry; - DirRef currentEntryRef, newStreamEntryRef; - HRESULT hr; - - TRACE("%p, %s, %#lx, %ld, %ld, %p.\n", iface, debugstr_w(pwcsName), grfMode, reserved1, reserved2, ppstm); - - if (ppstm == 0) - return STG_E_INVALIDPOINTER; - - if (pwcsName == 0) - return STG_E_INVALIDNAME; - - if (reserved1 || reserved2) - return STG_E_INVALIDPARAMETER; - - if ( FAILED( validateSTGM(grfMode) )) - return STG_E_INVALIDFLAG; - - if (STGM_SHARE_MODE(grfMode) != STGM_SHARE_EXCLUSIVE) - return STG_E_INVALIDFLAG; - - if (This->reverted) - return STG_E_REVERTED; - - /* - * As documented. - */ - if ((grfMode & STGM_DELETEONRELEASE) || - (grfMode & STGM_TRANSACTED)) - return STG_E_INVALIDFUNCTION; - - /* - * Don't worry about permissions in transacted mode, as we can always write - * changes; we just can't always commit them. - */ - if(!(This->openFlags & STGM_TRANSACTED)) { - /* Can't create a stream on read-only storage */ - if ( STGM_ACCESS_MODE( This->openFlags ) == STGM_READ ) - return STG_E_ACCESSDENIED; - - /* Can't create a stream with greater access than the parent. */ - if ( STGM_ACCESS_MODE( grfMode ) > STGM_ACCESS_MODE( This->openFlags ) ) - return STG_E_ACCESSDENIED; - } - - if(This->openFlags & STGM_SIMPLE) - if(grfMode & STGM_CREATE) return STG_E_INVALIDFLAG; - - *ppstm = 0; - - currentEntryRef = findElement(This, - This->storageDirEntry, - pwcsName, - ¤tEntry); - - if (currentEntryRef != DIRENTRY_NULL) - { - /* - * An element with this name already exists - */ - if (STGM_CREATE_MODE(grfMode) == STGM_CREATE) - { - IStorage_DestroyElement(iface, pwcsName); - } - else - return STG_E_FILEALREADYEXISTS; - } - - /* - * memset the empty entry - */ - memset(&newStreamEntry, 0, sizeof(DirEntry)); - - newStreamEntry.sizeOfNameString = - ( lstrlenW(pwcsName)+1 ) * sizeof(WCHAR); - - if (newStreamEntry.sizeOfNameString > DIRENTRY_NAME_BUFFER_LEN) - return STG_E_INVALIDNAME; - - lstrcpyW(newStreamEntry.name, pwcsName); - - newStreamEntry.stgType = STGTY_STREAM; - newStreamEntry.startingBlock = BLOCK_END_OF_CHAIN; - newStreamEntry.size.LowPart = 0; - newStreamEntry.size.HighPart = 0; - - newStreamEntry.leftChild = DIRENTRY_NULL; - newStreamEntry.rightChild = DIRENTRY_NULL; - newStreamEntry.dirRootEntry = DIRENTRY_NULL; - - /* call CoFileTime to get the current time - newStreamEntry.ctime - newStreamEntry.mtime - */ - - /* newStreamEntry.clsid */ - - /* - * Create an entry with the new data - */ - hr = StorageBaseImpl_CreateDirEntry(This, &newStreamEntry, &newStreamEntryRef); - if (FAILED(hr)) - return hr; - - /* - * Insert the new entry in the parent storage's tree. - */ - hr = insertIntoTree( - This, - This->storageDirEntry, - newStreamEntryRef); - if (FAILED(hr)) - { - StorageBaseImpl_DestroyDirEntry(This, newStreamEntryRef); - return hr; - } - - /* - * Open the stream to return it. - */ - newStream = StgStreamImpl_Construct(This, grfMode, newStreamEntryRef); - - if (newStream) - { - *ppstm = &newStream->IStream_iface; - IStream_AddRef(*ppstm); - } - else - { - return STG_E_INSUFFICIENTMEMORY; - } - - return StorageBaseImpl_Flush(This); -} - -/************************************************************************ - * StorageBaseImpl_SetClass (IStorage) - * - * This method will write the specified CLSID in the directory entry of this - * storage. - * - * See Windows documentation for more details on IStorage methods. - */ -static HRESULT WINAPI StorageBaseImpl_SetClass( - IStorage* iface, - REFCLSID clsid) /* [in] */ -{ - StorageBaseImpl *This = impl_from_IStorage(iface); - HRESULT hRes; - DirEntry currentEntry; - - TRACE("(%p, %s)\n", iface, wine_dbgstr_guid(clsid)); - - if (This->reverted) - return STG_E_REVERTED; - - hRes = StorageBaseImpl_ReadDirEntry(This, - This->storageDirEntry, - ¤tEntry); - if (SUCCEEDED(hRes)) - { - currentEntry.clsid = *clsid; - - hRes = StorageBaseImpl_WriteDirEntry(This, - This->storageDirEntry, - ¤tEntry); - } - - if (SUCCEEDED(hRes)) - hRes = StorageBaseImpl_Flush(This); - - return hRes; -} - -/************************************************************************ - * StorageBaseImpl_CreateStorage (IStorage) - * - * This method will create the storage object within the provided storage. - * - * See Windows documentation for more details on IStorage methods. - */ -static HRESULT WINAPI StorageBaseImpl_CreateStorage( - IStorage* iface, - const OLECHAR *pwcsName, /* [string][in] */ - DWORD grfMode, /* [in] */ - DWORD reserved1, /* [in] */ - DWORD reserved2, /* [in] */ - IStorage **ppstg) /* [out] */ -{ - StorageBaseImpl* This = impl_from_IStorage(iface); - - DirEntry currentEntry; - DirEntry newEntry; - DirRef currentEntryRef; - DirRef newEntryRef; - HRESULT hr; - - TRACE("%p, %s, %#lx, %ld, %ld, %p.\n", iface, debugstr_w(pwcsName), grfMode, - reserved1, reserved2, ppstg); - - if (ppstg == 0) - return STG_E_INVALIDPOINTER; - - if (This->openFlags & STGM_SIMPLE) - { - return STG_E_INVALIDFUNCTION; - } - - if (pwcsName == 0) - return STG_E_INVALIDNAME; - - *ppstg = NULL; - - if ( FAILED( validateSTGM(grfMode) ) || - (grfMode & STGM_DELETEONRELEASE) ) - { - WARN("bad grfMode: %#lx\n", grfMode); - return STG_E_INVALIDFLAG; - } - - if (This->reverted) - return STG_E_REVERTED; - - /* - * Check that we're compatible with the parent's storage mode - */ - if ( !(This->openFlags & STGM_TRANSACTED) && - STGM_ACCESS_MODE( grfMode ) > STGM_ACCESS_MODE( This->openFlags ) ) - { - WARN("access denied\n"); - return STG_E_ACCESSDENIED; - } - - currentEntryRef = findElement(This, - This->storageDirEntry, - pwcsName, - ¤tEntry); - - if (currentEntryRef != DIRENTRY_NULL) - { - /* - * An element with this name already exists - */ - if (STGM_CREATE_MODE(grfMode) == STGM_CREATE && - ((This->openFlags & STGM_TRANSACTED) || - STGM_ACCESS_MODE(This->openFlags) != STGM_READ)) - { - hr = IStorage_DestroyElement(iface, pwcsName); - if (FAILED(hr)) - return hr; - } - else - { - WARN("file already exists\n"); - return STG_E_FILEALREADYEXISTS; - } - } - else if (!(This->openFlags & STGM_TRANSACTED) && - STGM_ACCESS_MODE(This->openFlags) == STGM_READ) - { - WARN("read-only storage\n"); - return STG_E_ACCESSDENIED; - } - - memset(&newEntry, 0, sizeof(DirEntry)); - - newEntry.sizeOfNameString = (lstrlenW(pwcsName)+1)*sizeof(WCHAR); - - if (newEntry.sizeOfNameString > DIRENTRY_NAME_BUFFER_LEN) - { - FIXME("name too long\n"); - return STG_E_INVALIDNAME; - } - - lstrcpyW(newEntry.name, pwcsName); - - newEntry.stgType = STGTY_STORAGE; - newEntry.startingBlock = BLOCK_END_OF_CHAIN; - newEntry.size.LowPart = 0; - newEntry.size.HighPart = 0; - - newEntry.leftChild = DIRENTRY_NULL; - newEntry.rightChild = DIRENTRY_NULL; - newEntry.dirRootEntry = DIRENTRY_NULL; - - /* call CoFileTime to get the current time - newEntry.ctime - newEntry.mtime - */ - - /* newEntry.clsid */ - - /* - * Create a new directory entry for the storage - */ - hr = StorageBaseImpl_CreateDirEntry(This, &newEntry, &newEntryRef); - if (FAILED(hr)) - return hr; - - /* - * Insert the new directory entry into the parent storage's tree - */ - hr = insertIntoTree( - This, - This->storageDirEntry, - newEntryRef); - if (FAILED(hr)) - { - StorageBaseImpl_DestroyDirEntry(This, newEntryRef); - return hr; - } - - /* - * Open it to get a pointer to return. - */ - hr = IStorage_OpenStorage(iface, pwcsName, 0, grfMode, 0, 0, ppstg); - - if( (hr != S_OK) || (*ppstg == NULL)) - { - return hr; - } - - if (SUCCEEDED(hr)) - hr = StorageBaseImpl_Flush(This); - - return S_OK; -} - -static HRESULT StorageBaseImpl_CopyStorageEntryTo(StorageBaseImpl *This, - DirRef srcEntry, BOOL skip_storage, BOOL skip_stream, - SNB snbExclude, IStorage *pstgDest) -{ - DirEntry data; - HRESULT hr; - - hr = StorageBaseImpl_ReadDirEntry( This, srcEntry, &data ); - - if (SUCCEEDED(hr)) - hr = IStorage_SetClass( pstgDest, &data.clsid ); - - if (SUCCEEDED(hr)) - hr = StorageBaseImpl_CopyChildEntryTo( This, data.dirRootEntry, skip_storage, - skip_stream, snbExclude, pstgDest ); - - TRACE("<-- %#lx\n", hr); - return hr; -} - -/************************************************************************* - * CopyTo (IStorage) - */ -static HRESULT WINAPI StorageBaseImpl_CopyTo( - IStorage* iface, - DWORD ciidExclude, /* [in] */ - const IID* rgiidExclude, /* [size_is][unique][in] */ - SNB snbExclude, /* [unique][in] */ - IStorage* pstgDest) /* [unique][in] */ -{ - StorageBaseImpl *This = impl_from_IStorage(iface); - - BOOL skip_storage = FALSE, skip_stream = FALSE; - DWORD i; - - TRACE("%p, %ld, %p, %p, %p.\n", iface, ciidExclude, rgiidExclude, snbExclude, pstgDest); - - if ( pstgDest == 0 ) - return STG_E_INVALIDPOINTER; - - for(i = 0; i < ciidExclude; ++i) - { - if(IsEqualGUID(&IID_IStorage, &rgiidExclude[i])) - skip_storage = TRUE; - else if(IsEqualGUID(&IID_IStream, &rgiidExclude[i])) - skip_stream = TRUE; - else - WARN("Unknown excluded GUID: %s\n", debugstr_guid(&rgiidExclude[i])); - } - - if (!skip_storage) - { - /* Give up early if it looks like this would be infinitely recursive. - * Oddly enough, this includes some cases that aren't really recursive, like - * copying to a transacted child. */ - IStorage *pstgDestAncestor = pstgDest; - IStorage *pstgDestAncestorChild = NULL; - - /* Go up the chain from the destination until we find the source storage. */ - while (pstgDestAncestor != iface) { - pstgDestAncestorChild = pstgDest; - - if (pstgDestAncestor->lpVtbl == &TransactedSnapshotImpl_Vtbl) - { - TransactedSnapshotImpl *snapshot = (TransactedSnapshotImpl*) pstgDestAncestor; - - pstgDestAncestor = &snapshot->transactedParent->IStorage_iface; - } - else if (pstgDestAncestor->lpVtbl == &StorageInternalImpl_Vtbl) - { - StorageInternalImpl *internal = (StorageInternalImpl*) pstgDestAncestor; - - pstgDestAncestor = &internal->parentStorage->IStorage_iface; - } - else - break; - } - - if (pstgDestAncestor == iface) - { - BOOL fail = TRUE; - - if (pstgDestAncestorChild && snbExclude) - { - StorageBaseImpl *ancestorChildBase = (StorageBaseImpl*)pstgDestAncestorChild; - DirEntry data; - WCHAR **snb = snbExclude; - - StorageBaseImpl_ReadDirEntry(ancestorChildBase, ancestorChildBase->storageDirEntry, &data); - - while ( *snb != NULL && fail ) - { - if ( wcscmp(data.name, *snb) == 0 ) - fail = FALSE; - ++snb; - } - } - - if (fail) - return STG_E_ACCESSDENIED; - } - } - - return StorageBaseImpl_CopyStorageEntryTo( This, This->storageDirEntry, - skip_storage, skip_stream, snbExclude, pstgDest ); -} - -/************************************************************************* - * MoveElementTo (IStorage) - */ -static HRESULT WINAPI StorageBaseImpl_MoveElementTo( - IStorage* iface, - const OLECHAR *pwcsName, /* [string][in] */ - IStorage *pstgDest, /* [unique][in] */ - const OLECHAR *pwcsNewName,/* [string][in] */ - DWORD grfFlags) /* [in] */ -{ - FIXME("%p, %s, %p, %s, %#lx: stub\n", iface, debugstr_w(pwcsName), pstgDest, - debugstr_w(pwcsNewName), grfFlags); - return E_NOTIMPL; -} - -/************************************************************************* - * Commit (IStorage) - * - * Ensures that any changes made to a storage object open in transacted mode - * are reflected in the parent storage - * - * In a non-transacted mode, this ensures all cached writes are completed. - */ -static HRESULT WINAPI StorageBaseImpl_Commit( - IStorage* iface, - DWORD grfCommitFlags)/* [in] */ -{ - StorageBaseImpl* This = impl_from_IStorage(iface); - TRACE("%p, %#lx.\n", iface, grfCommitFlags); - return StorageBaseImpl_Flush(This); -} - -/************************************************************************* - * Revert (IStorage) - * - * Discard all changes that have been made since the last commit operation - */ -static HRESULT WINAPI StorageBaseImpl_Revert( - IStorage* iface) -{ - TRACE("(%p)\n", iface); - return S_OK; -} - -/********************************************************************* - * - * Internal helper function for StorageBaseImpl_DestroyElement() - * - * Delete the contents of a storage entry. - * - */ -static HRESULT deleteStorageContents( - StorageBaseImpl *parentStorage, - DirRef indexToDelete, - DirEntry entryDataToDelete) -{ - IEnumSTATSTG *elements = 0; - IStorage *childStorage = 0; - STATSTG currentElement; - HRESULT hr; - HRESULT destroyHr = S_OK; - StorageInternalImpl *stg, *stg2; - - TRACE("%p, %ld.\n", parentStorage, indexToDelete); - - /* Invalidate any open storage objects. */ - LIST_FOR_EACH_ENTRY_SAFE(stg, stg2, &parentStorage->storageHead, StorageInternalImpl, ParentListEntry) - { - if (stg->base.storageDirEntry == indexToDelete) - { - StorageBaseImpl_Invalidate(&stg->base); - } - } - - /* - * Open the storage and enumerate it - */ - hr = IStorage_OpenStorage( - &parentStorage->IStorage_iface, - entryDataToDelete.name, - 0, - STGM_WRITE | STGM_SHARE_EXCLUSIVE, - 0, - 0, - &childStorage); - - if (hr != S_OK) - { - TRACE("<-- %#lx\n", hr); - return hr; - } - - /* - * Enumerate the elements - */ - hr = IStorage_EnumElements(childStorage, 0, 0, 0, &elements); - if (FAILED(hr)) - { - IStorage_Release(childStorage); - TRACE("<-- %#lx\n", hr); - return hr; - } - - do - { - /* - * Obtain the next element - */ - hr = IEnumSTATSTG_Next(elements, 1, ¤tElement, NULL); - if (hr==S_OK) - { - destroyHr = IStorage_DestroyElement(childStorage, currentElement.pwcsName); - - CoTaskMemFree(currentElement.pwcsName); - } - - /* - * We need to Reset the enumeration every time because we delete elements - * and the enumeration could be invalid - */ - IEnumSTATSTG_Reset(elements); - - } while ((hr == S_OK) && (destroyHr == S_OK)); - - IStorage_Release(childStorage); - IEnumSTATSTG_Release(elements); - - TRACE("%#lx\n", hr); - return destroyHr; -} - -/********************************************************************* - * - * Internal helper function for StorageBaseImpl_DestroyElement() - * - * Perform the deletion of a stream's data - * - */ -static HRESULT deleteStreamContents( - StorageBaseImpl *parentStorage, - DirRef indexToDelete, - DirEntry entryDataToDelete) -{ - IStream *pis; - HRESULT hr; - ULARGE_INTEGER size; - StgStreamImpl *strm, *strm2; - - /* Invalidate any open stream objects. */ - LIST_FOR_EACH_ENTRY_SAFE(strm, strm2, &parentStorage->strmHead, StgStreamImpl, StrmListEntry) - { - if (strm->dirEntry == indexToDelete) - { - TRACE("Stream deleted %p\n", strm); - strm->parentStorage = NULL; - list_remove(&strm->StrmListEntry); - } - } - - size.HighPart = 0; - size.LowPart = 0; - - hr = IStorage_OpenStream(&parentStorage->IStorage_iface, - entryDataToDelete.name, NULL, STGM_WRITE | STGM_SHARE_EXCLUSIVE, 0, &pis); - - if (hr!=S_OK) - { - TRACE("<-- %#lx\n", hr); - return(hr); - } - - /* - * Zap the stream - */ - hr = IStream_SetSize(pis, size); - - if(hr != S_OK) - { - TRACE("<-- %#lx\n", hr); - return hr; - } - - /* - * Release the stream object. - */ - IStream_Release(pis); - TRACE("<-- %#lx\n", hr); - return S_OK; -} - -/************************************************************************* - * DestroyElement (IStorage) - * - * Strategy: This implementation is built this way for simplicity not for speed. - * I always delete the topmost element of the enumeration and adjust - * the deleted element pointer all the time. This takes longer to - * do but allows reinvoking DestroyElement whenever we encounter a - * storage object. The optimisation resides in the usage of another - * enumeration strategy that would give all the leaves of a storage - * first. (postfix order) - */ -static HRESULT WINAPI StorageBaseImpl_DestroyElement( - IStorage* iface, - const OLECHAR *pwcsName)/* [string][in] */ -{ - StorageBaseImpl *This = impl_from_IStorage(iface); - - HRESULT hr = S_OK; - DirEntry entryToDelete; - DirRef entryToDeleteRef; - - TRACE("(%p, %s)\n", - iface, debugstr_w(pwcsName)); - - if (pwcsName==NULL) - return STG_E_INVALIDPOINTER; - - if (This->reverted) - return STG_E_REVERTED; - - if ( !(This->openFlags & STGM_TRANSACTED) && - STGM_ACCESS_MODE( This->openFlags ) == STGM_READ ) - return STG_E_ACCESSDENIED; - - entryToDeleteRef = findElement( - This, - This->storageDirEntry, - pwcsName, - &entryToDelete); - - if ( entryToDeleteRef == DIRENTRY_NULL ) - { - TRACE("<-- STG_E_FILENOTFOUND\n"); - return STG_E_FILENOTFOUND; - } - - if ( entryToDelete.stgType == STGTY_STORAGE ) - { - hr = deleteStorageContents( - This, - entryToDeleteRef, - entryToDelete); - } - else if ( entryToDelete.stgType == STGTY_STREAM ) - { - hr = deleteStreamContents( - This, - entryToDeleteRef, - entryToDelete); - } - - if (hr!=S_OK) - { - TRACE("<-- %#lx\n", hr); - return hr; - } - - /* - * Remove the entry from its parent storage - */ - hr = removeFromTree( - This, - This->storageDirEntry, - entryToDeleteRef); - - /* - * Invalidate the entry - */ - if (SUCCEEDED(hr)) - StorageBaseImpl_DestroyDirEntry(This, entryToDeleteRef); - - if (SUCCEEDED(hr)) - hr = StorageBaseImpl_Flush(This); - - TRACE("<-- %#lx\n", hr); - return hr; -} - -static void StorageBaseImpl_DeleteAll(StorageBaseImpl * stg) -{ - struct list *cur, *cur2; - StgStreamImpl *strm=NULL; - StorageInternalImpl *childstg=NULL; - - LIST_FOR_EACH_SAFE(cur, cur2, &stg->strmHead) { - strm = LIST_ENTRY(cur,StgStreamImpl,StrmListEntry); - TRACE("Streams invalidated (stg=%p strm=%p next=%p prev=%p)\n", stg,strm,cur->next,cur->prev); - strm->parentStorage = NULL; - list_remove(cur); - } - - LIST_FOR_EACH_SAFE(cur, cur2, &stg->storageHead) { - childstg = LIST_ENTRY(cur,StorageInternalImpl,ParentListEntry); - StorageBaseImpl_Invalidate( &childstg->base ); - } - - if (stg->transactedChild) - { - StorageBaseImpl_Invalidate(stg->transactedChild); - - stg->transactedChild = NULL; - } -} - -/****************************************************************************** - * SetElementTimes (IStorage) - */ -static HRESULT WINAPI StorageBaseImpl_SetElementTimes( - IStorage* iface, - const OLECHAR *pwcsName,/* [string][in] */ - const FILETIME *pctime, /* [in] */ - const FILETIME *patime, /* [in] */ - const FILETIME *pmtime) /* [in] */ -{ - FIXME("(%s,...), stub!\n",debugstr_w(pwcsName)); - return S_OK; -} - -/****************************************************************************** - * SetStateBits (IStorage) - */ -static HRESULT WINAPI StorageBaseImpl_SetStateBits( - IStorage* iface, - DWORD grfStateBits,/* [in] */ - DWORD grfMask) /* [in] */ -{ - StorageBaseImpl *This = impl_from_IStorage(iface); - - if (This->reverted) - return STG_E_REVERTED; - - This->stateBits = (This->stateBits & ~grfMask) | (grfStateBits & grfMask); - return S_OK; -} - -/****************************************************************************** - * Internal stream list handlers - */ - -void StorageBaseImpl_AddStream(StorageBaseImpl * stg, StgStreamImpl * strm) -{ - TRACE("Stream added (stg=%p strm=%p)\n", stg, strm); - list_add_tail(&stg->strmHead,&strm->StrmListEntry); -} - -void StorageBaseImpl_RemoveStream(StorageBaseImpl * stg, StgStreamImpl * strm) -{ - TRACE("Stream removed (stg=%p strm=%p)\n", stg,strm); - list_remove(&(strm->StrmListEntry)); -} - -static HRESULT StorageBaseImpl_CopyStream( - StorageBaseImpl *dst, DirRef dst_entry, - StorageBaseImpl *src, DirRef src_entry) -{ - HRESULT hr; - BYTE data[4096]; - DirEntry srcdata; - ULARGE_INTEGER bytes_copied; - ULONG bytestocopy, bytesread, byteswritten; - - hr = StorageBaseImpl_ReadDirEntry(src, src_entry, &srcdata); - - if (SUCCEEDED(hr)) - { - hr = StorageBaseImpl_StreamSetSize(dst, dst_entry, srcdata.size); - - bytes_copied.QuadPart = 0; - while (bytes_copied.QuadPart < srcdata.size.QuadPart && SUCCEEDED(hr)) - { - bytestocopy = min(4096, srcdata.size.QuadPart - bytes_copied.QuadPart); - - hr = StorageBaseImpl_StreamReadAt(src, src_entry, bytes_copied, bytestocopy, - data, &bytesread); - if (SUCCEEDED(hr) && bytesread != bytestocopy) hr = STG_E_READFAULT; - - if (SUCCEEDED(hr)) - hr = StorageBaseImpl_StreamWriteAt(dst, dst_entry, bytes_copied, bytestocopy, - data, &byteswritten); - if (SUCCEEDED(hr)) - { - if (byteswritten != bytestocopy) hr = STG_E_WRITEFAULT; - bytes_copied.QuadPart += byteswritten; - } - } - } - - return hr; -} - -static HRESULT StorageBaseImpl_DupStorageTree( - StorageBaseImpl *dst, DirRef *dst_entry, - StorageBaseImpl *src, DirRef src_entry) -{ - HRESULT hr; - DirEntry data; - BOOL has_stream=FALSE; - - if (src_entry == DIRENTRY_NULL) - { - *dst_entry = DIRENTRY_NULL; - return S_OK; - } - - hr = StorageBaseImpl_ReadDirEntry(src, src_entry, &data); - if (SUCCEEDED(hr)) - { - has_stream = (data.stgType == STGTY_STREAM && data.size.QuadPart != 0); - data.startingBlock = BLOCK_END_OF_CHAIN; - data.size.QuadPart = 0; - - hr = StorageBaseImpl_DupStorageTree(dst, &data.leftChild, src, data.leftChild); - } - - if (SUCCEEDED(hr)) - hr = StorageBaseImpl_DupStorageTree(dst, &data.rightChild, src, data.rightChild); - - if (SUCCEEDED(hr)) - hr = StorageBaseImpl_DupStorageTree(dst, &data.dirRootEntry, src, data.dirRootEntry); - - if (SUCCEEDED(hr)) - hr = StorageBaseImpl_CreateDirEntry(dst, &data, dst_entry); - - if (SUCCEEDED(hr) && has_stream) - hr = StorageBaseImpl_CopyStream(dst, *dst_entry, src, src_entry); - - return hr; -} - -static HRESULT StorageBaseImpl_CopyStorageTree( - StorageBaseImpl *dst, DirRef dst_entry, - StorageBaseImpl *src, DirRef src_entry) -{ - HRESULT hr; - DirEntry src_data, dst_data; - DirRef new_root_entry; - - hr = StorageBaseImpl_ReadDirEntry(src, src_entry, &src_data); - - if (SUCCEEDED(hr)) - { - hr = StorageBaseImpl_DupStorageTree(dst, &new_root_entry, src, src_data.dirRootEntry); - } - - if (SUCCEEDED(hr)) - { - hr = StorageBaseImpl_ReadDirEntry(dst, dst_entry, &dst_data); - dst_data.clsid = src_data.clsid; - dst_data.ctime = src_data.ctime; - dst_data.mtime = src_data.mtime; - dst_data.dirRootEntry = new_root_entry; - } - - if (SUCCEEDED(hr)) - hr = StorageBaseImpl_WriteDirEntry(dst, dst_entry, &dst_data); - - return hr; -} - -static HRESULT StorageBaseImpl_DeleteStorageTree(StorageBaseImpl *This, DirRef entry, BOOL include_siblings) -{ - HRESULT hr; - DirEntry data; - ULARGE_INTEGER zero; - - if (entry == DIRENTRY_NULL) - return S_OK; - - zero.QuadPart = 0; - - hr = StorageBaseImpl_ReadDirEntry(This, entry, &data); - - if (SUCCEEDED(hr) && include_siblings) - hr = StorageBaseImpl_DeleteStorageTree(This, data.leftChild, TRUE); - - if (SUCCEEDED(hr) && include_siblings) - hr = StorageBaseImpl_DeleteStorageTree(This, data.rightChild, TRUE); - - if (SUCCEEDED(hr)) - hr = StorageBaseImpl_DeleteStorageTree(This, data.dirRootEntry, TRUE); - - if (SUCCEEDED(hr) && data.stgType == STGTY_STREAM) - hr = StorageBaseImpl_StreamSetSize(This, entry, zero); - - if (SUCCEEDED(hr)) - hr = StorageBaseImpl_DestroyDirEntry(This, entry); - - return hr; -} - - -/************************************************************************ - * StorageImpl implementation - ***********************************************************************/ - -static HRESULT StorageImpl_ReadAt(StorageImpl* This, - ULARGE_INTEGER offset, - void* buffer, - ULONG size, - ULONG* bytesRead) -{ - return ILockBytes_ReadAt(This->lockBytes,offset,buffer,size,bytesRead); -} - -static HRESULT StorageImpl_WriteAt(StorageImpl* This, - ULARGE_INTEGER offset, - const void* buffer, - const ULONG size, - ULONG* bytesWritten) -{ - return ILockBytes_WriteAt(This->lockBytes,offset,buffer,size,bytesWritten); -} - -/****************************************************************************** - * StorageImpl_LoadFileHeader - * - * This method will read in the file header - */ -static HRESULT StorageImpl_LoadFileHeader( - StorageImpl* This) -{ - HRESULT hr; - BYTE headerBigBlock[HEADER_SIZE]; - int index; - ULARGE_INTEGER offset; - DWORD bytes_read; - - TRACE("\n"); - /* - * Get a pointer to the big block of data containing the header. - */ - offset.HighPart = 0; - offset.LowPart = 0; - hr = StorageImpl_ReadAt(This, offset, headerBigBlock, HEADER_SIZE, &bytes_read); - if (SUCCEEDED(hr) && bytes_read != HEADER_SIZE) - hr = STG_E_FILENOTFOUND; - - /* - * Extract the information from the header. - */ - if (SUCCEEDED(hr)) - { - /* - * Check for the "magic number" signature and return an error if it is not - * found. - */ - if (memcmp(headerBigBlock, STORAGE_oldmagic, sizeof(STORAGE_oldmagic))==0) - { - return STG_E_OLDFORMAT; - } - - if (memcmp(headerBigBlock, STORAGE_magic, sizeof(STORAGE_magic))!=0) - { - return STG_E_INVALIDHEADER; - } - - StorageUtl_ReadWord( - headerBigBlock, - OFFSET_BIGBLOCKSIZEBITS, - &This->bigBlockSizeBits); - - StorageUtl_ReadWord( - headerBigBlock, - OFFSET_SMALLBLOCKSIZEBITS, - &This->smallBlockSizeBits); - - StorageUtl_ReadDWord( - headerBigBlock, - OFFSET_BBDEPOTCOUNT, - &This->bigBlockDepotCount); - - StorageUtl_ReadDWord( - headerBigBlock, - OFFSET_ROOTSTARTBLOCK, - &This->rootStartBlock); - - StorageUtl_ReadDWord( - headerBigBlock, - OFFSET_TRANSACTIONSIG, - &This->transactionSig); - - StorageUtl_ReadDWord( - headerBigBlock, - OFFSET_SMALLBLOCKLIMIT, - &This->smallBlockLimit); - - StorageUtl_ReadDWord( - headerBigBlock, - OFFSET_SBDEPOTSTART, - &This->smallBlockDepotStart); - - StorageUtl_ReadDWord( - headerBigBlock, - OFFSET_EXTBBDEPOTSTART, - &This->extBigBlockDepotStart); - - StorageUtl_ReadDWord( - headerBigBlock, - OFFSET_EXTBBDEPOTCOUNT, - &This->extBigBlockDepotCount); - - for (index = 0; index < COUNT_BBDEPOTINHEADER; index ++) - { - StorageUtl_ReadDWord( - headerBigBlock, - OFFSET_BBDEPOTSTART + (sizeof(ULONG)*index), - &(This->bigBlockDepotStart[index])); - } - - /* - * Make the bitwise arithmetic to get the size of the blocks in bytes. - */ - This->bigBlockSize = 0x000000001 << (DWORD)This->bigBlockSizeBits; - This->smallBlockSize = 0x000000001 << (DWORD)This->smallBlockSizeBits; - - /* - * Right now, the code is making some assumptions about the size of the - * blocks, just make sure they are what we're expecting. - */ - if ((This->bigBlockSize != MIN_BIG_BLOCK_SIZE && This->bigBlockSize != MAX_BIG_BLOCK_SIZE) || - This->smallBlockSize != DEF_SMALL_BLOCK_SIZE || - This->smallBlockLimit != LIMIT_TO_USE_SMALL_BLOCK) - { - FIXME("Broken OLE storage file? bigblock=%#lx, smallblock=%#lx, sblimit=%#lx\n", - This->bigBlockSize, This->smallBlockSize, This->smallBlockLimit); - hr = STG_E_INVALIDHEADER; - } - else - hr = S_OK; - } - - return hr; -} - -/****************************************************************************** - * StorageImpl_SaveFileHeader - * - * This method will save to the file the header - */ -static void StorageImpl_SaveFileHeader( - StorageImpl* This) -{ - BYTE headerBigBlock[HEADER_SIZE]; - int index; - ULARGE_INTEGER offset; - DWORD bytes_written; - DWORD major_version, dirsectorcount; - - if (This->bigBlockSizeBits == 0x9) - major_version = 3; - else if (This->bigBlockSizeBits == 0xc) - major_version = 4; - else - { - ERR("invalid big block shift 0x%x\n", This->bigBlockSizeBits); - major_version = 4; - } - - memset(headerBigBlock, 0, HEADER_SIZE); - memcpy(headerBigBlock, STORAGE_magic, sizeof(STORAGE_magic)); - - /* - * Write the information to the header. - */ - StorageUtl_WriteWord( - headerBigBlock, - OFFSET_MINORVERSION, - 0x3e); - - StorageUtl_WriteWord( - headerBigBlock, - OFFSET_MAJORVERSION, - major_version); - - StorageUtl_WriteWord( - headerBigBlock, - OFFSET_BYTEORDERMARKER, - (WORD)-2); - - StorageUtl_WriteWord( - headerBigBlock, - OFFSET_BIGBLOCKSIZEBITS, - This->bigBlockSizeBits); - - StorageUtl_WriteWord( - headerBigBlock, - OFFSET_SMALLBLOCKSIZEBITS, - This->smallBlockSizeBits); - - if (major_version >= 4) - { - if (This->rootBlockChain) - dirsectorcount = BlockChainStream_GetCount(This->rootBlockChain); - else - /* This file is being created, and it will start out with one block. */ - dirsectorcount = 1; - } - else - /* This field must be 0 in versions older than 4 */ - dirsectorcount = 0; - - StorageUtl_WriteDWord( - headerBigBlock, - OFFSET_DIRSECTORCOUNT, - dirsectorcount); - - StorageUtl_WriteDWord( - headerBigBlock, - OFFSET_BBDEPOTCOUNT, - This->bigBlockDepotCount); - - StorageUtl_WriteDWord( - headerBigBlock, - OFFSET_ROOTSTARTBLOCK, - This->rootStartBlock); - - StorageUtl_WriteDWord( - headerBigBlock, - OFFSET_TRANSACTIONSIG, - This->transactionSig); - - StorageUtl_WriteDWord( - headerBigBlock, - OFFSET_SMALLBLOCKLIMIT, - This->smallBlockLimit); - - StorageUtl_WriteDWord( - headerBigBlock, - OFFSET_SBDEPOTSTART, - This->smallBlockDepotStart); - - StorageUtl_WriteDWord( - headerBigBlock, - OFFSET_SBDEPOTCOUNT, - This->smallBlockDepotChain ? - BlockChainStream_GetCount(This->smallBlockDepotChain) : 0); - - StorageUtl_WriteDWord( - headerBigBlock, - OFFSET_EXTBBDEPOTSTART, - This->extBigBlockDepotStart); - - StorageUtl_WriteDWord( - headerBigBlock, - OFFSET_EXTBBDEPOTCOUNT, - This->extBigBlockDepotCount); - - for (index = 0; index < COUNT_BBDEPOTINHEADER; index ++) - { - StorageUtl_WriteDWord( - headerBigBlock, - OFFSET_BBDEPOTSTART + (sizeof(ULONG)*index), - (This->bigBlockDepotStart[index])); - } - - offset.QuadPart = 0; - StorageImpl_WriteAt(This, offset, headerBigBlock, HEADER_SIZE, &bytes_written); -} - - -/************************************************************************ - * StorageImpl implementation : DirEntry methods - ***********************************************************************/ - -/****************************************************************************** - * StorageImpl_ReadRawDirEntry - * - * This method will read the raw data from a directory entry in the file. - * - * buffer must be RAW_DIRENTRY_SIZE bytes long. - */ -static HRESULT StorageImpl_ReadRawDirEntry(StorageImpl *This, ULONG index, BYTE *buffer) -{ - ULARGE_INTEGER offset; - HRESULT hr; - ULONG bytesRead; - - offset.QuadPart = (ULONGLONG)index * RAW_DIRENTRY_SIZE; - - hr = BlockChainStream_ReadAt( - This->rootBlockChain, - offset, - RAW_DIRENTRY_SIZE, - buffer, - &bytesRead); - - if (bytesRead != RAW_DIRENTRY_SIZE) - return STG_E_READFAULT; - - return hr; -} - -/****************************************************************************** - * StorageImpl_WriteRawDirEntry - * - * This method will write the raw data from a directory entry in the file. - * - * buffer must be RAW_DIRENTRY_SIZE bytes long. - */ -static HRESULT StorageImpl_WriteRawDirEntry(StorageImpl *This, ULONG index, const BYTE *buffer) -{ - ULARGE_INTEGER offset; - ULONG bytesRead; - - offset.QuadPart = (ULONGLONG)index * RAW_DIRENTRY_SIZE; - - return BlockChainStream_WriteAt( - This->rootBlockChain, - offset, - RAW_DIRENTRY_SIZE, - buffer, - &bytesRead); -} - -/*************************************************************************** - * - * Internal Method - * - * Mark a directory entry in the file as free. - */ -static HRESULT StorageImpl_DestroyDirEntry( - StorageBaseImpl *base, - DirRef index) -{ - BYTE emptyData[RAW_DIRENTRY_SIZE]; - StorageImpl *storage = (StorageImpl*)base; - - memset(emptyData, 0, RAW_DIRENTRY_SIZE); - - return StorageImpl_WriteRawDirEntry(storage, index, emptyData); -} - -/****************************************************************************** - * UpdateRawDirEntry - * - * Update raw directory entry data from the fields in newData. - * - * buffer must be RAW_DIRENTRY_SIZE bytes long. - */ -static void UpdateRawDirEntry(BYTE *buffer, const DirEntry *newData) -{ - memset(buffer, 0, RAW_DIRENTRY_SIZE); - - memcpy( - buffer + OFFSET_PS_NAME, - newData->name, - DIRENTRY_NAME_BUFFER_LEN ); - - memcpy(buffer + OFFSET_PS_STGTYPE, &newData->stgType, 1); - - StorageUtl_WriteWord( - buffer, - OFFSET_PS_NAMELENGTH, - newData->sizeOfNameString); - - StorageUtl_WriteDWord( - buffer, - OFFSET_PS_LEFTCHILD, - newData->leftChild); - - StorageUtl_WriteDWord( - buffer, - OFFSET_PS_RIGHTCHILD, - newData->rightChild); - - StorageUtl_WriteDWord( - buffer, - OFFSET_PS_DIRROOT, - newData->dirRootEntry); - - StorageUtl_WriteGUID( - buffer, - OFFSET_PS_GUID, - &newData->clsid); - - StorageUtl_WriteDWord( - buffer, - OFFSET_PS_CTIMELOW, - newData->ctime.dwLowDateTime); - - StorageUtl_WriteDWord( - buffer, - OFFSET_PS_CTIMEHIGH, - newData->ctime.dwHighDateTime); - - StorageUtl_WriteDWord( - buffer, - OFFSET_PS_MTIMELOW, - newData->mtime.dwLowDateTime); - - StorageUtl_WriteDWord( - buffer, - OFFSET_PS_MTIMEHIGH, - newData->ctime.dwHighDateTime); - - StorageUtl_WriteDWord( - buffer, - OFFSET_PS_STARTBLOCK, - newData->startingBlock); - - StorageUtl_WriteDWord( - buffer, - OFFSET_PS_SIZE, - newData->size.LowPart); - - StorageUtl_WriteDWord( - buffer, - OFFSET_PS_SIZE_HIGH, - newData->size.HighPart); -} - -/*************************************************************************** - * - * Internal Method - * - * Reserve a directory entry in the file and initialize it. - */ -static HRESULT StorageImpl_CreateDirEntry( - StorageBaseImpl *base, - const DirEntry *newData, - DirRef *index) -{ - StorageImpl *storage = (StorageImpl*)base; - ULONG currentEntryIndex = 0; - ULONG newEntryIndex = DIRENTRY_NULL; - HRESULT hr = S_OK; - BYTE currentData[RAW_DIRENTRY_SIZE]; - WORD sizeOfNameString; - - do - { - hr = StorageImpl_ReadRawDirEntry(storage, - currentEntryIndex, - currentData); - - if (SUCCEEDED(hr)) - { - StorageUtl_ReadWord( - currentData, - OFFSET_PS_NAMELENGTH, - &sizeOfNameString); - - if (sizeOfNameString == 0) - { - /* - * The entry exists and is available, we found it. - */ - newEntryIndex = currentEntryIndex; - } - } - else - { - /* - * We exhausted the directory entries, we will create more space below - */ - newEntryIndex = currentEntryIndex; - } - currentEntryIndex++; - - } while (newEntryIndex == DIRENTRY_NULL); - - /* - * grow the directory stream - */ - if (FAILED(hr)) - { - BYTE emptyData[RAW_DIRENTRY_SIZE]; - ULARGE_INTEGER newSize; - ULONG entryIndex; - ULONG lastEntry = 0; - ULONG blockCount = 0; - - /* - * obtain the new count of blocks in the directory stream - */ - blockCount = BlockChainStream_GetCount( - storage->rootBlockChain)+1; - - /* - * initialize the size used by the directory stream - */ - newSize.QuadPart = (ULONGLONG)storage->bigBlockSize * blockCount; - - /* - * add a block to the directory stream - */ - BlockChainStream_SetSize(storage->rootBlockChain, newSize); - - /* - * memset the empty entry in order to initialize the unused newly - * created entries - */ - memset(emptyData, 0, RAW_DIRENTRY_SIZE); - - /* - * initialize them - */ - lastEntry = storage->bigBlockSize / RAW_DIRENTRY_SIZE * blockCount; - - for( - entryIndex = newEntryIndex + 1; - entryIndex < lastEntry; - entryIndex++) - { - StorageImpl_WriteRawDirEntry( - storage, - entryIndex, - emptyData); - } - - StorageImpl_SaveFileHeader(storage); - } - - UpdateRawDirEntry(currentData, newData); - - hr = StorageImpl_WriteRawDirEntry(storage, newEntryIndex, currentData); - - if (SUCCEEDED(hr)) - *index = newEntryIndex; - - return hr; -} - -/****************************************************************************** - * StorageImpl_ReadDirEntry - * - * This method will read the specified directory entry. - */ -static HRESULT StorageImpl_ReadDirEntry( - StorageImpl* This, - DirRef index, - DirEntry* buffer) -{ - BYTE currentEntry[RAW_DIRENTRY_SIZE]; - HRESULT readRes; - - readRes = StorageImpl_ReadRawDirEntry(This, index, currentEntry); - - if (SUCCEEDED(readRes)) - { - memset(buffer->name, 0, sizeof(buffer->name)); - memcpy( - buffer->name, - (WCHAR *)currentEntry+OFFSET_PS_NAME, - DIRENTRY_NAME_BUFFER_LEN ); - TRACE("storage name: %s\n", debugstr_w(buffer->name)); - - memcpy(&buffer->stgType, currentEntry + OFFSET_PS_STGTYPE, 1); - - StorageUtl_ReadWord( - currentEntry, - OFFSET_PS_NAMELENGTH, - &buffer->sizeOfNameString); - - StorageUtl_ReadDWord( - currentEntry, - OFFSET_PS_LEFTCHILD, - &buffer->leftChild); - - StorageUtl_ReadDWord( - currentEntry, - OFFSET_PS_RIGHTCHILD, - &buffer->rightChild); - - StorageUtl_ReadDWord( - currentEntry, - OFFSET_PS_DIRROOT, - &buffer->dirRootEntry); - - StorageUtl_ReadGUID( - currentEntry, - OFFSET_PS_GUID, - &buffer->clsid); - - StorageUtl_ReadDWord( - currentEntry, - OFFSET_PS_CTIMELOW, - &buffer->ctime.dwLowDateTime); - - StorageUtl_ReadDWord( - currentEntry, - OFFSET_PS_CTIMEHIGH, - &buffer->ctime.dwHighDateTime); - - StorageUtl_ReadDWord( - currentEntry, - OFFSET_PS_MTIMELOW, - &buffer->mtime.dwLowDateTime); - - StorageUtl_ReadDWord( - currentEntry, - OFFSET_PS_MTIMEHIGH, - &buffer->mtime.dwHighDateTime); - - StorageUtl_ReadDWord( - currentEntry, - OFFSET_PS_STARTBLOCK, - &buffer->startingBlock); - - StorageUtl_ReadDWord( - currentEntry, - OFFSET_PS_SIZE, - &buffer->size.LowPart); - - if (This->bigBlockSize < 4096) - { - /* Version 3 files may have junk in the high part of size. */ - buffer->size.HighPart = 0; - } - else - { - StorageUtl_ReadDWord( - currentEntry, - OFFSET_PS_SIZE_HIGH, - &buffer->size.HighPart); - } - } - - return readRes; -} - -/********************************************************************* - * Write the specified directory entry to the file - */ -static HRESULT StorageImpl_WriteDirEntry( - StorageImpl* This, - DirRef index, - const DirEntry* buffer) -{ - BYTE currentEntry[RAW_DIRENTRY_SIZE]; - - UpdateRawDirEntry(currentEntry, buffer); - - return StorageImpl_WriteRawDirEntry(This, index, currentEntry); -} - - -/************************************************************************ - * StorageImpl implementation : Block methods - ***********************************************************************/ - -static ULONGLONG StorageImpl_GetBigBlockOffset(StorageImpl* This, ULONG index) -{ - return (ULONGLONG)(index+1) * This->bigBlockSize; -} - -static HRESULT StorageImpl_ReadBigBlock( - StorageImpl* This, - ULONG blockIndex, - void* buffer, - ULONG* out_read) -{ - ULARGE_INTEGER ulOffset; - DWORD read=0; - HRESULT hr; - - ulOffset.QuadPart = StorageImpl_GetBigBlockOffset(This, blockIndex); - - hr = StorageImpl_ReadAt(This, ulOffset, buffer, This->bigBlockSize, &read); - - if (SUCCEEDED(hr) && read < This->bigBlockSize) - { - /* File ends during this block; fill the rest with 0's. */ - memset((LPBYTE)buffer+read, 0, This->bigBlockSize-read); - } - - if (out_read) *out_read = read; - - return hr; -} - -static BOOL StorageImpl_ReadDWordFromBigBlock( - StorageImpl* This, - ULONG blockIndex, - ULONG offset, - DWORD* value) -{ - ULARGE_INTEGER ulOffset; - DWORD read; - DWORD tmp; - - ulOffset.QuadPart = StorageImpl_GetBigBlockOffset(This, blockIndex); - ulOffset.QuadPart += offset; - - StorageImpl_ReadAt(This, ulOffset, &tmp, sizeof(DWORD), &read); - *value = lendian32toh(tmp); - return (read == sizeof(DWORD)); -} - -static BOOL StorageImpl_WriteBigBlock( - StorageImpl* This, - ULONG blockIndex, - const void* buffer) -{ - ULARGE_INTEGER ulOffset; - DWORD wrote; - - ulOffset.QuadPart = StorageImpl_GetBigBlockOffset(This, blockIndex); - - StorageImpl_WriteAt(This, ulOffset, buffer, This->bigBlockSize, &wrote); - return (wrote == This->bigBlockSize); -} - -static BOOL StorageImpl_WriteDWordToBigBlock( - StorageImpl* This, - ULONG blockIndex, - ULONG offset, - DWORD value) -{ - ULARGE_INTEGER ulOffset; - DWORD wrote; - - ulOffset.QuadPart = StorageImpl_GetBigBlockOffset(This, blockIndex); - ulOffset.QuadPart += offset; - - value = htole32(value); - StorageImpl_WriteAt(This, ulOffset, &value, sizeof(DWORD), &wrote); - return (wrote == sizeof(DWORD)); -} - -/****************************************************************************** - * Storage32Impl_SmallBlocksToBigBlocks - * - * This method will convert a small block chain to a big block chain. - * The small block chain will be destroyed. - */ -static BlockChainStream* Storage32Impl_SmallBlocksToBigBlocks( - StorageImpl* This, - SmallBlockChainStream** ppsbChain) -{ - ULONG bbHeadOfChain = BLOCK_END_OF_CHAIN; - ULARGE_INTEGER size, offset; - ULONG cbRead, cbWritten; - ULARGE_INTEGER cbTotalRead; - DirRef streamEntryRef; - HRESULT resWrite = S_OK; - HRESULT resRead; - DirEntry streamEntry; - BYTE *buffer; - BlockChainStream *bbTempChain = NULL; - BlockChainStream *bigBlockChain = NULL; - - /* - * Create a temporary big block chain that doesn't have - * an associated directory entry. This temporary chain will be - * used to copy data from small blocks to big blocks. - */ - bbTempChain = BlockChainStream_Construct(This, - &bbHeadOfChain, - DIRENTRY_NULL); - if(!bbTempChain) return NULL; - /* - * Grow the big block chain. - */ - size = SmallBlockChainStream_GetSize(*ppsbChain); - BlockChainStream_SetSize(bbTempChain, size); - - /* - * Copy the contents of the small block chain to the big block chain - * by small block size increments. - */ - offset.LowPart = 0; - offset.HighPart = 0; - cbTotalRead.QuadPart = 0; - - buffer = HeapAlloc(GetProcessHeap(),0,DEF_SMALL_BLOCK_SIZE); - do - { - resRead = SmallBlockChainStream_ReadAt(*ppsbChain, - offset, - min(This->smallBlockSize, size.LowPart - offset.LowPart), - buffer, - &cbRead); - if (FAILED(resRead)) - break; - - if (cbRead > 0) - { - cbTotalRead.QuadPart += cbRead; - - resWrite = BlockChainStream_WriteAt(bbTempChain, - offset, - cbRead, - buffer, - &cbWritten); - - if (FAILED(resWrite)) - break; - - offset.LowPart += cbRead; - } - else - { - resRead = STG_E_READFAULT; - break; - } - } while (cbTotalRead.QuadPart < size.QuadPart); - HeapFree(GetProcessHeap(),0,buffer); - - size.HighPart = 0; - size.LowPart = 0; - - if (FAILED(resRead) || FAILED(resWrite)) - { - ERR("conversion failed: resRead = %#lx, resWrite = %#lx\n", resRead, resWrite); - BlockChainStream_SetSize(bbTempChain, size); - BlockChainStream_Destroy(bbTempChain); - return NULL; - } - - /* - * Destroy the small block chain. - */ - streamEntryRef = (*ppsbChain)->ownerDirEntry; - SmallBlockChainStream_SetSize(*ppsbChain, size); - SmallBlockChainStream_Destroy(*ppsbChain); - *ppsbChain = 0; - - /* - * Change the directory entry. This chain is now a big block chain - * and it doesn't reside in the small blocks chain anymore. - */ - StorageImpl_ReadDirEntry(This, streamEntryRef, &streamEntry); - - streamEntry.startingBlock = bbHeadOfChain; - - StorageImpl_WriteDirEntry(This, streamEntryRef, &streamEntry); - - /* - * Destroy the temporary entryless big block chain. - * Create a new big block chain associated with this entry. - */ - BlockChainStream_Destroy(bbTempChain); - bigBlockChain = BlockChainStream_Construct(This, - NULL, - streamEntryRef); - - return bigBlockChain; -} - -/****************************************************************************** - * Storage32Impl_BigBlocksToSmallBlocks - * - * This method will convert a big block chain to a small block chain. - * The big block chain will be destroyed on success. - */ -static SmallBlockChainStream* Storage32Impl_BigBlocksToSmallBlocks( - StorageImpl* This, - BlockChainStream** ppbbChain, - ULARGE_INTEGER newSize) -{ - ULARGE_INTEGER size, offset, cbTotalRead; - ULONG cbRead, cbWritten, sbHeadOfChain = BLOCK_END_OF_CHAIN; - DirRef streamEntryRef; - HRESULT resWrite = S_OK, resRead = S_OK; - DirEntry streamEntry; - BYTE* buffer; - SmallBlockChainStream* sbTempChain; - - TRACE("%p %p\n", This, ppbbChain); - - sbTempChain = SmallBlockChainStream_Construct(This, &sbHeadOfChain, - DIRENTRY_NULL); - - if(!sbTempChain) - return NULL; - - SmallBlockChainStream_SetSize(sbTempChain, newSize); - size = BlockChainStream_GetSize(*ppbbChain); - size.QuadPart = min(size.QuadPart, newSize.QuadPart); - - offset.HighPart = 0; - offset.LowPart = 0; - cbTotalRead.QuadPart = 0; - buffer = HeapAlloc(GetProcessHeap(), 0, This->bigBlockSize); - while(cbTotalRead.QuadPart < size.QuadPart) - { - resRead = BlockChainStream_ReadAt(*ppbbChain, offset, - min(This->bigBlockSize, size.LowPart - offset.LowPart), - buffer, &cbRead); - - if(FAILED(resRead)) - break; - - if(cbRead > 0) - { - cbTotalRead.QuadPart += cbRead; - - resWrite = SmallBlockChainStream_WriteAt(sbTempChain, offset, - cbRead, buffer, &cbWritten); - - if(FAILED(resWrite)) - break; - - offset.LowPart += cbRead; - } - else - { - resRead = STG_E_READFAULT; - break; - } - } - HeapFree(GetProcessHeap(), 0, buffer); - - size.HighPart = 0; - size.LowPart = 0; - - if(FAILED(resRead) || FAILED(resWrite)) - { - ERR("conversion failed: resRead = %#lx, resWrite = %#lx\n", resRead, resWrite); - SmallBlockChainStream_SetSize(sbTempChain, size); - SmallBlockChainStream_Destroy(sbTempChain); - return NULL; - } - - /* destroy the original big block chain */ - streamEntryRef = (*ppbbChain)->ownerDirEntry; - BlockChainStream_SetSize(*ppbbChain, size); - BlockChainStream_Destroy(*ppbbChain); - *ppbbChain = NULL; - - StorageImpl_ReadDirEntry(This, streamEntryRef, &streamEntry); - streamEntry.startingBlock = sbHeadOfChain; - StorageImpl_WriteDirEntry(This, streamEntryRef, &streamEntry); - - SmallBlockChainStream_Destroy(sbTempChain); - return SmallBlockChainStream_Construct(This, NULL, streamEntryRef); -} - -/****************************************************************************** - * Storage32Impl_AddBlockDepot - * - * This will create a depot block, essentially it is a block initialized - * to BLOCK_UNUSEDs. - */ -static void Storage32Impl_AddBlockDepot(StorageImpl* This, ULONG blockIndex, ULONG depotIndex) -{ - BYTE blockBuffer[MAX_BIG_BLOCK_SIZE]; - ULONG rangeLockIndex = RANGELOCK_FIRST / This->bigBlockSize - 1; - ULONG blocksPerDepot = This->bigBlockSize / sizeof(ULONG); - ULONG rangeLockDepot = rangeLockIndex / blocksPerDepot; - - /* - * Initialize blocks as free - */ - memset(blockBuffer, BLOCK_UNUSED, This->bigBlockSize); - - /* Reserve the range lock sector */ - if (depotIndex == rangeLockDepot) - { - ((ULONG*)blockBuffer)[rangeLockIndex % blocksPerDepot] = BLOCK_END_OF_CHAIN; - } - - StorageImpl_WriteBigBlock(This, blockIndex, blockBuffer); -} - -/****************************************************************************** - * Storage32Impl_GetExtDepotBlock - * - * Returns the index of the block that corresponds to the specified depot - * index. This method is only for depot indexes equal or greater than - * COUNT_BBDEPOTINHEADER. - */ -static ULONG Storage32Impl_GetExtDepotBlock(StorageImpl* This, ULONG depotIndex) -{ - ULONG depotBlocksPerExtBlock = (This->bigBlockSize / sizeof(ULONG)) - 1; - ULONG numExtBlocks = depotIndex - COUNT_BBDEPOTINHEADER; - ULONG extBlockCount = numExtBlocks / depotBlocksPerExtBlock; - ULONG extBlockOffset = numExtBlocks % depotBlocksPerExtBlock; - ULONG blockIndex = BLOCK_UNUSED; - ULONG extBlockIndex; - BYTE depotBuffer[MAX_BIG_BLOCK_SIZE]; - int index, num_blocks; - - assert(depotIndex >= COUNT_BBDEPOTINHEADER); - - if (extBlockCount >= This->extBigBlockDepotCount) - return BLOCK_UNUSED; - - if (This->indexExtBlockDepotCached != extBlockCount) - { - extBlockIndex = This->extBigBlockDepotLocations[extBlockCount]; - - StorageImpl_ReadBigBlock(This, extBlockIndex, depotBuffer, NULL); - - num_blocks = This->bigBlockSize / 4; - - for (index = 0; index < num_blocks; index++) - { - StorageUtl_ReadDWord(depotBuffer, index*sizeof(ULONG), &blockIndex); - This->extBlockDepotCached[index] = blockIndex; - } - - This->indexExtBlockDepotCached = extBlockCount; - } - - blockIndex = This->extBlockDepotCached[extBlockOffset]; - - return blockIndex; -} - -/****************************************************************************** - * Storage32Impl_SetExtDepotBlock - * - * Associates the specified block index to the specified depot index. - * This method is only for depot indexes equal or greater than - * COUNT_BBDEPOTINHEADER. - */ -static void Storage32Impl_SetExtDepotBlock(StorageImpl* This, ULONG depotIndex, ULONG blockIndex) -{ - ULONG depotBlocksPerExtBlock = (This->bigBlockSize / sizeof(ULONG)) - 1; - ULONG numExtBlocks = depotIndex - COUNT_BBDEPOTINHEADER; - ULONG extBlockCount = numExtBlocks / depotBlocksPerExtBlock; - ULONG extBlockOffset = numExtBlocks % depotBlocksPerExtBlock; - ULONG extBlockIndex; - - assert(depotIndex >= COUNT_BBDEPOTINHEADER); - - assert(extBlockCount < This->extBigBlockDepotCount); - - extBlockIndex = This->extBigBlockDepotLocations[extBlockCount]; - - if (extBlockIndex != BLOCK_UNUSED) - { - StorageImpl_WriteDWordToBigBlock(This, extBlockIndex, - extBlockOffset * sizeof(ULONG), - blockIndex); - } - - if (This->indexExtBlockDepotCached == extBlockCount) - { - This->extBlockDepotCached[extBlockOffset] = blockIndex; - } -} - -/****************************************************************************** - * Storage32Impl_AddExtBlockDepot - * - * Creates an extended depot block. - */ -static ULONG Storage32Impl_AddExtBlockDepot(StorageImpl* This) -{ - ULONG numExtBlocks = This->extBigBlockDepotCount; - ULONG nextExtBlock = This->extBigBlockDepotStart; - BYTE depotBuffer[MAX_BIG_BLOCK_SIZE]; - ULONG index = BLOCK_UNUSED; - ULONG nextBlockOffset = This->bigBlockSize - sizeof(ULONG); - ULONG blocksPerDepotBlock = This->bigBlockSize / sizeof(ULONG); - ULONG depotBlocksPerExtBlock = blocksPerDepotBlock - 1; - - index = (COUNT_BBDEPOTINHEADER + (numExtBlocks * depotBlocksPerExtBlock)) * - blocksPerDepotBlock; - - if ((numExtBlocks == 0) && (nextExtBlock == BLOCK_END_OF_CHAIN)) - { - /* - * The first extended block. - */ - This->extBigBlockDepotStart = index; - } - else - { - /* - * Find the last existing extended block. - */ - nextExtBlock = This->extBigBlockDepotLocations[This->extBigBlockDepotCount-1]; - - /* - * Add the new extended block to the chain. - */ - StorageImpl_WriteDWordToBigBlock(This, nextExtBlock, nextBlockOffset, - index); - } - - /* - * Initialize this block. - */ - memset(depotBuffer, BLOCK_UNUSED, This->bigBlockSize); - StorageImpl_WriteBigBlock(This, index, depotBuffer); - - /* Add the block to our cache. */ - if (This->extBigBlockDepotLocationsSize == numExtBlocks) - { - ULONG new_cache_size = (This->extBigBlockDepotLocationsSize+1)*2; - ULONG *new_cache = HeapAlloc(GetProcessHeap(), 0, sizeof(ULONG) * new_cache_size); - - memcpy(new_cache, This->extBigBlockDepotLocations, sizeof(ULONG) * This->extBigBlockDepotLocationsSize); - HeapFree(GetProcessHeap(), 0, This->extBigBlockDepotLocations); - - This->extBigBlockDepotLocations = new_cache; - This->extBigBlockDepotLocationsSize = new_cache_size; - } - This->extBigBlockDepotLocations[numExtBlocks] = index; - - return index; -} - -/************************************************************************ - * StorageImpl_GetNextBlockInChain - * - * This method will retrieve the block index of the next big block in - * in the chain. - * - * Params: This - Pointer to the Storage object. - * blockIndex - Index of the block to retrieve the chain - * for. - * nextBlockIndex - receives the return value. - * - * Returns: This method returns the index of the next block in the chain. - * It will return the constants: - * BLOCK_SPECIAL - If the block given was not part of a - * chain. - * BLOCK_END_OF_CHAIN - If the block given was the last in - * a chain. - * BLOCK_UNUSED - If the block given was not past of a chain - * and is available. - * BLOCK_EXTBBDEPOT - This block is part of the extended - * big block depot. - * - * See Windows documentation for more details on IStorage methods. - */ -static HRESULT StorageImpl_GetNextBlockInChain( - StorageImpl* This, - ULONG blockIndex, - ULONG* nextBlockIndex) -{ - ULONG offsetInDepot = blockIndex * sizeof (ULONG); - ULONG depotBlockCount = offsetInDepot / This->bigBlockSize; - ULONG depotBlockOffset = offsetInDepot % This->bigBlockSize; - BYTE depotBuffer[MAX_BIG_BLOCK_SIZE]; - ULONG read; - ULONG depotBlockIndexPos; - int index, num_blocks; - - *nextBlockIndex = BLOCK_SPECIAL; - - if(depotBlockCount >= This->bigBlockDepotCount) - { - WARN("depotBlockCount %ld, bigBlockDepotCount %ld\n", depotBlockCount, This->bigBlockDepotCount); - return STG_E_READFAULT; - } - - /* - * Cache the currently accessed depot block. - */ - if (depotBlockCount != This->indexBlockDepotCached) - { - This->indexBlockDepotCached = depotBlockCount; - - if (depotBlockCount < COUNT_BBDEPOTINHEADER) - { - depotBlockIndexPos = This->bigBlockDepotStart[depotBlockCount]; - } - else - { - /* - * We have to look in the extended depot. - */ - depotBlockIndexPos = Storage32Impl_GetExtDepotBlock(This, depotBlockCount); - } - - StorageImpl_ReadBigBlock(This, depotBlockIndexPos, depotBuffer, &read); - - if (!read) - return STG_E_READFAULT; - - num_blocks = This->bigBlockSize / 4; - - for (index = 0; index < num_blocks; index++) - { - StorageUtl_ReadDWord(depotBuffer, index*sizeof(ULONG), nextBlockIndex); - This->blockDepotCached[index] = *nextBlockIndex; - } - } - - *nextBlockIndex = This->blockDepotCached[depotBlockOffset/sizeof(ULONG)]; - - return S_OK; -} - -/****************************************************************************** - * Storage32Impl_GetNextExtendedBlock - * - * Given an extended block this method will return the next extended block. - * - * NOTES: - * The last ULONG of an extended block is the block index of the next - * extended block. Extended blocks are marked as BLOCK_EXTBBDEPOT in the - * depot. - * - * Return values: - * - The index of the next extended block - * - BLOCK_UNUSED: there is no next extended block. - * - Any other return values denotes failure. - */ -static ULONG Storage32Impl_GetNextExtendedBlock(StorageImpl* This, ULONG blockIndex) -{ - ULONG nextBlockIndex = BLOCK_SPECIAL; - ULONG depotBlockOffset = This->bigBlockSize - sizeof(ULONG); - - StorageImpl_ReadDWordFromBigBlock(This, blockIndex, depotBlockOffset, - &nextBlockIndex); - - return nextBlockIndex; -} - -/****************************************************************************** - * StorageImpl_SetNextBlockInChain - * - * This method will write the index of the specified block's next block - * in the big block depot. - * - * For example: to create the chain 3 -> 1 -> 7 -> End of Chain - * do the following - * - * StorageImpl_SetNextBlockInChain(This, 3, 1); - * StorageImpl_SetNextBlockInChain(This, 1, 7); - * StorageImpl_SetNextBlockInChain(This, 7, BLOCK_END_OF_CHAIN); - * - */ -static void StorageImpl_SetNextBlockInChain( - StorageImpl* This, - ULONG blockIndex, - ULONG nextBlock) -{ - ULONG offsetInDepot = blockIndex * sizeof (ULONG); - ULONG depotBlockCount = offsetInDepot / This->bigBlockSize; - ULONG depotBlockOffset = offsetInDepot % This->bigBlockSize; - ULONG depotBlockIndexPos; - - assert(depotBlockCount < This->bigBlockDepotCount); - assert(blockIndex != nextBlock); - - if (blockIndex == (RANGELOCK_FIRST / This->bigBlockSize) - 1) - /* This should never happen (storage file format spec forbids it), but - * older versions of Wine may have generated broken files. We don't want to - * assert and potentially lose data, but we do want to know if this ever - * happens in a newly-created file. */ - ERR("Using range lock page\n"); - - if (depotBlockCount < COUNT_BBDEPOTINHEADER) - { - depotBlockIndexPos = This->bigBlockDepotStart[depotBlockCount]; - } - else - { - /* - * We have to look in the extended depot. - */ - depotBlockIndexPos = Storage32Impl_GetExtDepotBlock(This, depotBlockCount); - } - - StorageImpl_WriteDWordToBigBlock(This, depotBlockIndexPos, depotBlockOffset, - nextBlock); - /* - * Update the cached block depot, if necessary. - */ - if (depotBlockCount == This->indexBlockDepotCached) - { - This->blockDepotCached[depotBlockOffset/sizeof(ULONG)] = nextBlock; - } -} - -/****************************************************************************** - * StorageImpl_GetNextFreeBigBlock - * - * Returns the index of the next free big block. - * If the big block depot is filled, this method will enlarge it. - * - */ -static ULONG StorageImpl_GetNextFreeBigBlock( - StorageImpl* This, ULONG neededAddNumBlocks) -{ - ULONG depotBlockIndexPos; - BYTE depotBuffer[MAX_BIG_BLOCK_SIZE]; - ULONG depotBlockOffset; - ULONG blocksPerDepot = This->bigBlockSize / sizeof(ULONG); - ULONG nextBlockIndex = BLOCK_SPECIAL; - int depotIndex = 0; - ULONG freeBlock = BLOCK_UNUSED; - ULONG read; - ULARGE_INTEGER neededSize; - STATSTG statstg; - - depotIndex = This->prevFreeBlock / blocksPerDepot; - depotBlockOffset = (This->prevFreeBlock % blocksPerDepot) * sizeof(ULONG); - - /* - * Scan the entire big block depot until we find a block marked free - */ - while (nextBlockIndex != BLOCK_UNUSED) - { - if (depotIndex < COUNT_BBDEPOTINHEADER) - { - depotBlockIndexPos = This->bigBlockDepotStart[depotIndex]; - - /* - * Grow the primary depot. - */ - if (depotBlockIndexPos == BLOCK_UNUSED) - { - depotBlockIndexPos = depotIndex*blocksPerDepot; - - /* - * Add a block depot. - */ - Storage32Impl_AddBlockDepot(This, depotBlockIndexPos, depotIndex); - This->bigBlockDepotCount++; - This->bigBlockDepotStart[depotIndex] = depotBlockIndexPos; - - /* - * Flag it as a block depot. - */ - StorageImpl_SetNextBlockInChain(This, - depotBlockIndexPos, - BLOCK_SPECIAL); - - /* Save new header information. - */ - StorageImpl_SaveFileHeader(This); - } - } - else - { - depotBlockIndexPos = Storage32Impl_GetExtDepotBlock(This, depotIndex); - - if (depotBlockIndexPos == BLOCK_UNUSED) - { - /* - * Grow the extended depot. - */ - ULONG extIndex = BLOCK_UNUSED; - ULONG numExtBlocks = depotIndex - COUNT_BBDEPOTINHEADER; - ULONG extBlockOffset = numExtBlocks % (blocksPerDepot - 1); - - if (extBlockOffset == 0) - { - /* We need an extended block. - */ - extIndex = Storage32Impl_AddExtBlockDepot(This); - This->extBigBlockDepotCount++; - depotBlockIndexPos = extIndex + 1; - } - else - depotBlockIndexPos = depotIndex * blocksPerDepot; - - /* - * Add a block depot and mark it in the extended block. - */ - Storage32Impl_AddBlockDepot(This, depotBlockIndexPos, depotIndex); - This->bigBlockDepotCount++; - Storage32Impl_SetExtDepotBlock(This, depotIndex, depotBlockIndexPos); - - /* Flag the block depot. - */ - StorageImpl_SetNextBlockInChain(This, - depotBlockIndexPos, - BLOCK_SPECIAL); - - /* If necessary, flag the extended depot block. - */ - if (extIndex != BLOCK_UNUSED) - StorageImpl_SetNextBlockInChain(This, extIndex, BLOCK_EXTBBDEPOT); - - /* Save header information. - */ - StorageImpl_SaveFileHeader(This); - } - } - - StorageImpl_ReadBigBlock(This, depotBlockIndexPos, depotBuffer, &read); - - if (read) - { - while ( ( (depotBlockOffset/sizeof(ULONG) ) < blocksPerDepot) && - ( nextBlockIndex != BLOCK_UNUSED)) - { - StorageUtl_ReadDWord(depotBuffer, depotBlockOffset, &nextBlockIndex); - - if (nextBlockIndex == BLOCK_UNUSED) - { - freeBlock = (depotIndex * blocksPerDepot) + - (depotBlockOffset/sizeof(ULONG)); - } - - depotBlockOffset += sizeof(ULONG); - } - } - - depotIndex++; - depotBlockOffset = 0; - } - - /* - * make sure that the block physically exists before using it - */ - neededSize.QuadPart = StorageImpl_GetBigBlockOffset(This, freeBlock)+This->bigBlockSize * neededAddNumBlocks; - - ILockBytes_Stat(This->lockBytes, &statstg, STATFLAG_NONAME); - - if (neededSize.QuadPart > statstg.cbSize.QuadPart) - ILockBytes_SetSize(This->lockBytes, neededSize); - - This->prevFreeBlock = freeBlock; - - return freeBlock; -} - -/****************************************************************************** - * StorageImpl_FreeBigBlock - * - * This method will flag the specified block as free in the big block depot. - */ -static void StorageImpl_FreeBigBlock( - StorageImpl* This, - ULONG blockIndex) -{ - StorageImpl_SetNextBlockInChain(This, blockIndex, BLOCK_UNUSED); - - if (blockIndex < This->prevFreeBlock) - This->prevFreeBlock = blockIndex; -} - - -static HRESULT StorageImpl_BaseWriteDirEntry(StorageBaseImpl *base, - DirRef index, const DirEntry *data) -{ - StorageImpl *This = (StorageImpl*)base; - return StorageImpl_WriteDirEntry(This, index, data); -} - -static HRESULT StorageImpl_BaseReadDirEntry(StorageBaseImpl *base, - DirRef index, DirEntry *data) -{ - StorageImpl *This = (StorageImpl*)base; - return StorageImpl_ReadDirEntry(This, index, data); -} - -static BlockChainStream **StorageImpl_GetFreeBlockChainCacheEntry(StorageImpl* This) -{ - int i; - - for (i=0; i<BLOCKCHAIN_CACHE_SIZE; i++) - { - if (!This->blockChainCache[i]) - { - return &This->blockChainCache[i]; - } - } - - i = This->blockChainToEvict; - - BlockChainStream_Destroy(This->blockChainCache[i]); - This->blockChainCache[i] = NULL; - - This->blockChainToEvict++; - if (This->blockChainToEvict == BLOCKCHAIN_CACHE_SIZE) - This->blockChainToEvict = 0; - - return &This->blockChainCache[i]; -} - -static BlockChainStream **StorageImpl_GetCachedBlockChainStream(StorageImpl *This, - DirRef index) -{ - int i, free_index=-1; - - for (i=0; i<BLOCKCHAIN_CACHE_SIZE; i++) - { - if (!This->blockChainCache[i]) - { - if (free_index == -1) free_index = i; - } - else if (This->blockChainCache[i]->ownerDirEntry == index) - { - return &This->blockChainCache[i]; - } - } - - if (free_index == -1) - { - free_index = This->blockChainToEvict; - - BlockChainStream_Destroy(This->blockChainCache[free_index]); - This->blockChainCache[free_index] = NULL; - - This->blockChainToEvict++; - if (This->blockChainToEvict == BLOCKCHAIN_CACHE_SIZE) - This->blockChainToEvict = 0; - } - - This->blockChainCache[free_index] = BlockChainStream_Construct(This, NULL, index); - return &This->blockChainCache[free_index]; -} - -static void StorageImpl_DeleteCachedBlockChainStream(StorageImpl *This, DirRef index) -{ - int i; - - for (i=0; i<BLOCKCHAIN_CACHE_SIZE; i++) - { - if (This->blockChainCache[i] && This->blockChainCache[i]->ownerDirEntry == index) - { - BlockChainStream_Destroy(This->blockChainCache[i]); - This->blockChainCache[i] = NULL; - return; - } - } -} - -static HRESULT StorageImpl_StreamReadAt(StorageBaseImpl *base, DirRef index, - ULARGE_INTEGER offset, ULONG size, void *buffer, ULONG *bytesRead) -{ - StorageImpl *This = (StorageImpl*)base; - DirEntry data; - HRESULT hr; - ULONG bytesToRead; - - hr = StorageImpl_ReadDirEntry(This, index, &data); - if (FAILED(hr)) return hr; - - if (data.size.QuadPart == 0) - { - *bytesRead = 0; - return S_OK; - } - - if (offset.QuadPart + size > data.size.QuadPart) - { - bytesToRead = data.size.QuadPart - offset.QuadPart; - } - else - { - bytesToRead = size; - } - - if (data.size.QuadPart < LIMIT_TO_USE_SMALL_BLOCK) - { - SmallBlockChainStream *stream; - - stream = SmallBlockChainStream_Construct(This, NULL, index); - if (!stream) return E_OUTOFMEMORY; - - hr = SmallBlockChainStream_ReadAt(stream, offset, bytesToRead, buffer, bytesRead); - - SmallBlockChainStream_Destroy(stream); - - return hr; - } - else - { - BlockChainStream *stream = NULL; - - stream = *StorageImpl_GetCachedBlockChainStream(This, index); - if (!stream) return E_OUTOFMEMORY; - - hr = BlockChainStream_ReadAt(stream, offset, bytesToRead, buffer, bytesRead); - - return hr; - } -} - -static HRESULT StorageImpl_StreamSetSize(StorageBaseImpl *base, DirRef index, - ULARGE_INTEGER newsize) -{ - StorageImpl *This = (StorageImpl*)base; - DirEntry data; - HRESULT hr; - SmallBlockChainStream *smallblock=NULL; - BlockChainStream **pbigblock=NULL, *bigblock=NULL; - - hr = StorageImpl_ReadDirEntry(This, index, &data); - if (FAILED(hr)) return hr; - - /* In simple mode keep the stream size above the small block limit */ - if (This->base.openFlags & STGM_SIMPLE) - newsize.QuadPart = max(newsize.QuadPart, LIMIT_TO_USE_SMALL_BLOCK); - - if (data.size.QuadPart == newsize.QuadPart) - return S_OK; - - /* Create a block chain object of the appropriate type */ - if (data.size.QuadPart == 0) - { - if (newsize.QuadPart < LIMIT_TO_USE_SMALL_BLOCK) - { - smallblock = SmallBlockChainStream_Construct(This, NULL, index); - if (!smallblock) return E_OUTOFMEMORY; - } - else - { - pbigblock = StorageImpl_GetCachedBlockChainStream(This, index); - bigblock = *pbigblock; - if (!bigblock) return E_OUTOFMEMORY; - } - } - else if (data.size.QuadPart < LIMIT_TO_USE_SMALL_BLOCK) - { - smallblock = SmallBlockChainStream_Construct(This, NULL, index); - if (!smallblock) return E_OUTOFMEMORY; - } - else - { - pbigblock = StorageImpl_GetCachedBlockChainStream(This, index); - bigblock = *pbigblock; - if (!bigblock) return E_OUTOFMEMORY; - } - - /* Change the block chain type if necessary. */ - if (smallblock && newsize.QuadPart >= LIMIT_TO_USE_SMALL_BLOCK) - { - bigblock = Storage32Impl_SmallBlocksToBigBlocks(This, &smallblock); - if (!bigblock) - { - SmallBlockChainStream_Destroy(smallblock); - return E_FAIL; - } - - pbigblock = StorageImpl_GetFreeBlockChainCacheEntry(This); - *pbigblock = bigblock; - } - else if (bigblock && newsize.QuadPart < LIMIT_TO_USE_SMALL_BLOCK) - { - smallblock = Storage32Impl_BigBlocksToSmallBlocks(This, pbigblock, newsize); - if (!smallblock) - return E_FAIL; - } - - /* Set the size of the block chain. */ - if (smallblock) - { - SmallBlockChainStream_SetSize(smallblock, newsize); - SmallBlockChainStream_Destroy(smallblock); - } - else - { - BlockChainStream_SetSize(bigblock, newsize); - } - - /* Set the size in the directory entry. */ - hr = StorageImpl_ReadDirEntry(This, index, &data); - if (SUCCEEDED(hr)) - { - data.size = newsize; - - hr = StorageImpl_WriteDirEntry(This, index, &data); - } - return hr; -} - -static HRESULT StorageImpl_StreamWriteAt(StorageBaseImpl *base, DirRef index, - ULARGE_INTEGER offset, ULONG size, const void *buffer, ULONG *bytesWritten) -{ - StorageImpl *This = (StorageImpl*)base; - DirEntry data; - HRESULT hr; - ULARGE_INTEGER newSize; - - hr = StorageImpl_ReadDirEntry(This, index, &data); - if (FAILED(hr)) return hr; - - /* Grow the stream if necessary */ - newSize.QuadPart = offset.QuadPart + size; - - if (newSize.QuadPart > data.size.QuadPart) - { - hr = StorageImpl_StreamSetSize(base, index, newSize); - if (FAILED(hr)) - return hr; - - hr = StorageImpl_ReadDirEntry(This, index, &data); - if (FAILED(hr)) return hr; - } - - if (data.size.QuadPart < LIMIT_TO_USE_SMALL_BLOCK) - { - SmallBlockChainStream *stream; - - stream = SmallBlockChainStream_Construct(This, NULL, index); - if (!stream) return E_OUTOFMEMORY; - - hr = SmallBlockChainStream_WriteAt(stream, offset, size, buffer, bytesWritten); - - SmallBlockChainStream_Destroy(stream); - - return hr; - } - else - { - BlockChainStream *stream; - - stream = *StorageImpl_GetCachedBlockChainStream(This, index); - if (!stream) return E_OUTOFMEMORY; - - return BlockChainStream_WriteAt(stream, offset, size, buffer, bytesWritten); - } -} - -static HRESULT StorageImpl_StreamLink(StorageBaseImpl *base, DirRef dst, - DirRef src) -{ - StorageImpl *This = (StorageImpl*)base; - DirEntry dst_data, src_data; - HRESULT hr; - - hr = StorageImpl_ReadDirEntry(This, dst, &dst_data); - - if (SUCCEEDED(hr)) - hr = StorageImpl_ReadDirEntry(This, src, &src_data); - - if (SUCCEEDED(hr)) - { - StorageImpl_DeleteCachedBlockChainStream(This, src); - dst_data.startingBlock = src_data.startingBlock; - dst_data.size = src_data.size; - - hr = StorageImpl_WriteDirEntry(This, dst, &dst_data); - } - - return hr; -} - -static HRESULT StorageImpl_Refresh(StorageImpl *This, BOOL new_object, BOOL create) -{ - HRESULT hr=S_OK; - DirEntry currentEntry; - DirRef currentEntryRef; - BlockChainStream *blockChainStream; - - if (create) - { - ULARGE_INTEGER size; - BYTE bigBlockBuffer[MAX_BIG_BLOCK_SIZE]; - - /* Discard any existing data. */ - size.QuadPart = 0; - ILockBytes_SetSize(This->lockBytes, size); - - /* - * Initialize all header variables: - * - The big block depot consists of one block and it is at block 0 - * - The directory table starts at block 1 - * - There is no small block depot - */ - memset( This->bigBlockDepotStart, - BLOCK_UNUSED, - sizeof(This->bigBlockDepotStart)); - - This->bigBlockDepotCount = 1; - This->bigBlockDepotStart[0] = 0; - This->rootStartBlock = 1; - This->smallBlockLimit = LIMIT_TO_USE_SMALL_BLOCK; - This->smallBlockDepotStart = BLOCK_END_OF_CHAIN; - if (This->bigBlockSize == 4096) - This->bigBlockSizeBits = MAX_BIG_BLOCK_SIZE_BITS; - else - This->bigBlockSizeBits = MIN_BIG_BLOCK_SIZE_BITS; - This->smallBlockSizeBits = DEF_SMALL_BLOCK_SIZE_BITS; - This->extBigBlockDepotStart = BLOCK_END_OF_CHAIN; - This->extBigBlockDepotCount = 0; - - StorageImpl_SaveFileHeader(This); - - /* - * Add one block for the big block depot and one block for the directory table - */ - size.HighPart = 0; - size.LowPart = This->bigBlockSize * 3; - ILockBytes_SetSize(This->lockBytes, size); - - /* - * Initialize the big block depot - */ - memset(bigBlockBuffer, BLOCK_UNUSED, This->bigBlockSize); - StorageUtl_WriteDWord(bigBlockBuffer, 0, BLOCK_SPECIAL); - StorageUtl_WriteDWord(bigBlockBuffer, sizeof(ULONG), BLOCK_END_OF_CHAIN); - StorageImpl_WriteBigBlock(This, 0, bigBlockBuffer); - } - else - { - /* - * Load the header for the file. - */ - hr = StorageImpl_LoadFileHeader(This); - - if (FAILED(hr)) - { - return hr; - } - } - - /* - * There is no block depot cached yet. - */ - This->indexBlockDepotCached = 0xFFFFFFFF; - This->indexExtBlockDepotCached = 0xFFFFFFFF; - - /* - * Start searching for free blocks with block 0. - */ - This->prevFreeBlock = 0; - - This->firstFreeSmallBlock = 0; - - /* Read the extended big block depot locations. */ - if (This->extBigBlockDepotCount != 0) - { - ULONG current_block = This->extBigBlockDepotStart; - ULONG cache_size = This->extBigBlockDepotCount * 2; - ULONG i; - - This->extBigBlockDepotLocations = HeapAlloc(GetProcessHeap(), 0, sizeof(ULONG) * cache_size); - if (!This->extBigBlockDepotLocations) - { - return E_OUTOFMEMORY; - } - - This->extBigBlockDepotLocationsSize = cache_size; - - for (i=0; i<This->extBigBlockDepotCount; i++) - { - if (current_block == BLOCK_END_OF_CHAIN) - { - WARN("File has too few extended big block depot blocks.\n"); - return STG_E_DOCFILECORRUPT; - } - This->extBigBlockDepotLocations[i] = current_block; - current_block = Storage32Impl_GetNextExtendedBlock(This, current_block); - } - } - else - { - This->extBigBlockDepotLocations = NULL; - This->extBigBlockDepotLocationsSize = 0; - } - - /* - * Create the block chain abstractions. - */ - if(!(blockChainStream = - BlockChainStream_Construct(This, &This->rootStartBlock, DIRENTRY_NULL))) - { - return STG_E_READFAULT; - } - if (!new_object) - BlockChainStream_Destroy(This->rootBlockChain); - This->rootBlockChain = blockChainStream; - - if(!(blockChainStream = - BlockChainStream_Construct(This, &This->smallBlockDepotStart, - DIRENTRY_NULL))) - { - return STG_E_READFAULT; - } - if (!new_object) - BlockChainStream_Destroy(This->smallBlockDepotChain); - This->smallBlockDepotChain = blockChainStream; - - /* - * Write the root storage entry (memory only) - */ - if (create) - { - DirEntry rootEntry; - /* - * Initialize the directory table - */ - memset(&rootEntry, 0, sizeof(rootEntry)); - lstrcpyW(rootEntry.name, L"Root Entry"); - rootEntry.sizeOfNameString = sizeof(L"Root Entry"); - rootEntry.stgType = STGTY_ROOT; - rootEntry.leftChild = DIRENTRY_NULL; - rootEntry.rightChild = DIRENTRY_NULL; - rootEntry.dirRootEntry = DIRENTRY_NULL; - rootEntry.startingBlock = BLOCK_END_OF_CHAIN; - rootEntry.size.HighPart = 0; - rootEntry.size.LowPart = 0; - - StorageImpl_WriteDirEntry(This, 0, &rootEntry); - } - - /* - * Find the ID of the root storage. - */ - currentEntryRef = 0; - - do - { - hr = StorageImpl_ReadDirEntry( - This, - currentEntryRef, - ¤tEntry); - - if (SUCCEEDED(hr)) - { - if ( (currentEntry.sizeOfNameString != 0 ) && - (currentEntry.stgType == STGTY_ROOT) ) - { - This->base.storageDirEntry = currentEntryRef; - } - } - - currentEntryRef++; - - } while (SUCCEEDED(hr) && (This->base.storageDirEntry == DIRENTRY_NULL) ); - - if (FAILED(hr)) - { - return STG_E_READFAULT; - } - - /* - * Create the block chain abstraction for the small block root chain. - */ - if(!(blockChainStream = - BlockChainStream_Construct(This, NULL, This->base.storageDirEntry))) - { - return STG_E_READFAULT; - } - if (!new_object) - BlockChainStream_Destroy(This->smallBlockRootChain); - This->smallBlockRootChain = blockChainStream; - - if (!new_object) - { - int i; - for (i=0; i<BLOCKCHAIN_CACHE_SIZE; i++) - { - BlockChainStream_Destroy(This->blockChainCache[i]); - This->blockChainCache[i] = NULL; - } - } - - return hr; -} - -static HRESULT StorageImpl_GetTransactionSig(StorageBaseImpl *base, - ULONG* result, BOOL refresh) -{ - StorageImpl *This = (StorageImpl*)base; - HRESULT hr=S_OK; - DWORD oldTransactionSig = This->transactionSig; - - if (refresh) - { - ULARGE_INTEGER offset; - ULONG bytes_read; - BYTE data[4]; - - offset.HighPart = 0; - offset.LowPart = OFFSET_TRANSACTIONSIG; - hr = StorageImpl_ReadAt(This, offset, data, 4, &bytes_read); - - if (SUCCEEDED(hr)) - { - StorageUtl_ReadDWord(data, 0, &This->transactionSig); - - if (oldTransactionSig != This->transactionSig) - { - /* Someone else wrote to this, so toss all cached information. */ - TRACE("signature changed\n"); - - hr = StorageImpl_Refresh(This, FALSE, FALSE); - } - - if (FAILED(hr)) - This->transactionSig = oldTransactionSig; - } - } - - *result = This->transactionSig; - - return hr; -} - -static HRESULT StorageImpl_SetTransactionSig(StorageBaseImpl *base, - ULONG value) -{ - StorageImpl *This = (StorageImpl*)base; - - This->transactionSig = value; - StorageImpl_SaveFileHeader(This); - - return S_OK; -} - -static HRESULT StorageImpl_LockRegion(StorageImpl *This, ULARGE_INTEGER offset, - ULARGE_INTEGER cb, DWORD dwLockType, BOOL *supported) -{ - if ((dwLockType & This->locks_supported) == 0) - { - if (supported) *supported = FALSE; - return S_OK; - } - - if (supported) *supported = TRUE; - return ILockBytes_LockRegion(This->lockBytes, offset, cb, dwLockType); -} - -static HRESULT StorageImpl_UnlockRegion(StorageImpl *This, ULARGE_INTEGER offset, - ULARGE_INTEGER cb, DWORD dwLockType) -{ - if ((dwLockType & This->locks_supported) == 0) - return S_OK; - - return ILockBytes_UnlockRegion(This->lockBytes, offset, cb, dwLockType); -} - -/* Internal function */ -static HRESULT StorageImpl_LockRegionSync(StorageImpl *This, ULARGE_INTEGER offset, - ULARGE_INTEGER cb, DWORD dwLockType, BOOL *supported) -{ - HRESULT hr; - int delay = 0; - DWORD start_time = GetTickCount(); - DWORD last_sanity_check = start_time; - ULARGE_INTEGER sanity_offset, sanity_cb; - - sanity_offset.QuadPart = RANGELOCK_UNK1_FIRST; - sanity_cb.QuadPart = RANGELOCK_UNK1_LAST - RANGELOCK_UNK1_FIRST + 1; - - do - { - hr = StorageImpl_LockRegion(This, offset, cb, dwLockType, supported); - - if (hr == STG_E_ACCESSDENIED || hr == STG_E_LOCKVIOLATION) - { - DWORD current_time = GetTickCount(); - if (current_time - start_time >= 20000) - { - /* timeout */ - break; - } - if (current_time - last_sanity_check >= 500) - { - /* Any storage implementation with the file open in a - * shared mode should not lock these bytes for writing. However, - * some programs (LibreOffice Writer) will keep ALL bytes locked - * when opening in exclusive mode. We can use a read lock to - * detect this case early, and not hang a full 20 seconds. - * - * This can collide with another attempt to open the file in - * exclusive mode, but it's unlikely, and someone would fail anyway. */ - hr = StorageImpl_LockRegion(This, sanity_offset, sanity_cb, WINE_LOCK_READ, NULL); - if (hr == STG_E_ACCESSDENIED || hr == STG_E_LOCKVIOLATION) - break; - if (SUCCEEDED(hr)) - { - StorageImpl_UnlockRegion(This, sanity_offset, sanity_cb, WINE_LOCK_READ); - hr = STG_E_ACCESSDENIED; - } - - last_sanity_check = current_time; - } - Sleep(delay); - if (delay < 150) delay++; - } - } while (hr == STG_E_ACCESSDENIED || hr == STG_E_LOCKVIOLATION); - - return hr; -} - -static HRESULT StorageImpl_LockTransaction(StorageBaseImpl *base, BOOL write) -{ - StorageImpl *This = (StorageImpl*)base; - HRESULT hr; - ULARGE_INTEGER offset, cb; - - if (write) - { - /* Synchronous grab of second priority range, the commit lock, and the - * lock-checking lock. */ - offset.QuadPart = RANGELOCK_TRANSACTION_FIRST; - cb.QuadPart = RANGELOCK_TRANSACTION_LAST - RANGELOCK_TRANSACTION_FIRST + 1; - } - else - { - offset.QuadPart = RANGELOCK_COMMIT; - cb.QuadPart = 1; - } - - hr = StorageImpl_LockRegionSync(This, offset, cb, LOCK_ONLYONCE, NULL); - - return hr; -} - -static HRESULT StorageImpl_UnlockTransaction(StorageBaseImpl *base, BOOL write) -{ - StorageImpl *This = (StorageImpl*)base; - HRESULT hr; - ULARGE_INTEGER offset, cb; - - if (write) - { - offset.QuadPart = RANGELOCK_TRANSACTION_FIRST; - cb.QuadPart = RANGELOCK_TRANSACTION_LAST - RANGELOCK_TRANSACTION_FIRST + 1; - } - else - { - offset.QuadPart = RANGELOCK_COMMIT; - cb.QuadPart = 1; - } - - hr = StorageImpl_UnlockRegion(This, offset, cb, LOCK_ONLYONCE); - - return hr; -} - -static HRESULT StorageImpl_GetFilename(StorageBaseImpl* iface, LPWSTR *result) -{ - StorageImpl *This = (StorageImpl*) iface; - STATSTG statstg; - HRESULT hr; - - hr = ILockBytes_Stat(This->lockBytes, &statstg, 0); - - *result = statstg.pwcsName; - - return hr; -} - -static HRESULT StorageImpl_CheckLockRange(StorageImpl *This, ULONG start, - ULONG end, HRESULT fail_hr) -{ - HRESULT hr; - ULARGE_INTEGER offset, cb; - - offset.QuadPart = start; - cb.QuadPart = 1 + end - start; - - hr = StorageImpl_LockRegion(This, offset, cb, LOCK_ONLYONCE, NULL); - if (SUCCEEDED(hr)) StorageImpl_UnlockRegion(This, offset, cb, LOCK_ONLYONCE); - - if (FAILED(hr)) - return fail_hr; - else - return S_OK; -} - -static HRESULT StorageImpl_LockOne(StorageImpl *This, ULONG start, ULONG end) -{ - HRESULT hr=S_OK; - int i, j; - ULARGE_INTEGER offset, cb; - - cb.QuadPart = 1; - - for (i=start; i<=end; i++) - { - offset.QuadPart = i; - hr = StorageImpl_LockRegion(This, offset, cb, LOCK_ONLYONCE, NULL); - if (hr != STG_E_ACCESSDENIED && hr != STG_E_LOCKVIOLATION) - break; - } - - if (SUCCEEDED(hr)) - { - for (j = 0; j < ARRAY_SIZE(This->locked_bytes); j++) - { - if (This->locked_bytes[j] == 0) - { - This->locked_bytes[j] = i; - break; - } - } - } - - return hr; -} - -static HRESULT StorageImpl_GrabLocks(StorageImpl *This, DWORD openFlags) -{ - HRESULT hr; - ULARGE_INTEGER offset; - ULARGE_INTEGER cb; - DWORD share_mode = STGM_SHARE_MODE(openFlags); - BOOL supported; - - if (openFlags & STGM_NOSNAPSHOT) - { - /* STGM_NOSNAPSHOT implies deny write */ - if (share_mode == STGM_SHARE_DENY_READ) share_mode = STGM_SHARE_EXCLUSIVE; - else if (share_mode != STGM_SHARE_EXCLUSIVE) share_mode = STGM_SHARE_DENY_WRITE; - } - - /* Wrap all other locking inside a single lock so we can check ranges safely */ - offset.QuadPart = RANGELOCK_CHECKLOCKS; - cb.QuadPart = 1; - hr = StorageImpl_LockRegionSync(This, offset, cb, LOCK_ONLYONCE, &supported); - - /* If the ILockBytes doesn't support locking that's ok. */ - if (!supported) return S_OK; - else if (FAILED(hr)) return hr; - - hr = S_OK; - - /* First check for any conflicting locks. */ - if ((openFlags & STGM_PRIORITY) == STGM_PRIORITY) - hr = StorageImpl_CheckLockRange(This, RANGELOCK_COMMIT, RANGELOCK_COMMIT, STG_E_LOCKVIOLATION); - - if (SUCCEEDED(hr) && (STGM_ACCESS_MODE(openFlags) != STGM_WRITE)) - hr = StorageImpl_CheckLockRange(This, RANGELOCK_DENY_READ_FIRST, RANGELOCK_DENY_READ_LAST, STG_E_SHAREVIOLATION); - - if (SUCCEEDED(hr) && (STGM_ACCESS_MODE(openFlags) != STGM_READ)) - hr = StorageImpl_CheckLockRange(This, RANGELOCK_DENY_WRITE_FIRST, RANGELOCK_DENY_WRITE_LAST, STG_E_SHAREVIOLATION); - - if (SUCCEEDED(hr) && (share_mode == STGM_SHARE_DENY_READ || share_mode == STGM_SHARE_EXCLUSIVE)) - hr = StorageImpl_CheckLockRange(This, RANGELOCK_READ_FIRST, RANGELOCK_READ_LAST, STG_E_LOCKVIOLATION); - - if (SUCCEEDED(hr) && (share_mode == STGM_SHARE_DENY_WRITE || share_mode == STGM_SHARE_EXCLUSIVE)) - hr = StorageImpl_CheckLockRange(This, RANGELOCK_WRITE_FIRST, RANGELOCK_WRITE_LAST, STG_E_LOCKVIOLATION); - - if (SUCCEEDED(hr) && STGM_ACCESS_MODE(openFlags) == STGM_READ && share_mode == STGM_SHARE_EXCLUSIVE) - { - hr = StorageImpl_CheckLockRange(This, 0, RANGELOCK_CHECKLOCKS-1, STG_E_LOCKVIOLATION); - - if (SUCCEEDED(hr)) - hr = StorageImpl_CheckLockRange(This, RANGELOCK_CHECKLOCKS+1, RANGELOCK_LAST, STG_E_LOCKVIOLATION); - } - - /* Then grab our locks. */ - if (SUCCEEDED(hr) && (openFlags & STGM_PRIORITY) == STGM_PRIORITY) - { - hr = StorageImpl_LockOne(This, RANGELOCK_PRIORITY1_FIRST, RANGELOCK_PRIORITY1_LAST); - if (SUCCEEDED(hr)) - hr = StorageImpl_LockOne(This, RANGELOCK_PRIORITY2_FIRST, RANGELOCK_PRIORITY2_LAST); - } - - if (SUCCEEDED(hr) && (STGM_ACCESS_MODE(openFlags) != STGM_WRITE)) - hr = StorageImpl_LockOne(This, RANGELOCK_READ_FIRST, RANGELOCK_READ_LAST); - - if (SUCCEEDED(hr) && (STGM_ACCESS_MODE(openFlags) != STGM_READ)) - hr = StorageImpl_LockOne(This, RANGELOCK_WRITE_FIRST, RANGELOCK_WRITE_LAST); - - if (SUCCEEDED(hr) && (share_mode == STGM_SHARE_DENY_READ || share_mode == STGM_SHARE_EXCLUSIVE)) - hr = StorageImpl_LockOne(This, RANGELOCK_DENY_READ_FIRST, RANGELOCK_DENY_READ_LAST); - - if (SUCCEEDED(hr) && (share_mode == STGM_SHARE_DENY_WRITE || share_mode == STGM_SHARE_EXCLUSIVE)) - hr = StorageImpl_LockOne(This, RANGELOCK_DENY_WRITE_FIRST, RANGELOCK_DENY_WRITE_LAST); - - if (SUCCEEDED(hr) && (openFlags & STGM_NOSNAPSHOT) == STGM_NOSNAPSHOT) - hr = StorageImpl_LockOne(This, RANGELOCK_NOSNAPSHOT_FIRST, RANGELOCK_NOSNAPSHOT_LAST); - - offset.QuadPart = RANGELOCK_CHECKLOCKS; - cb.QuadPart = 1; - StorageImpl_UnlockRegion(This, offset, cb, LOCK_ONLYONCE); - - return hr; -} - -static HRESULT StorageImpl_Flush(StorageBaseImpl *storage) -{ - StorageImpl *This = (StorageImpl*)storage; - int i; - HRESULT hr; - TRACE("(%p)\n", This); - - hr = BlockChainStream_Flush(This->smallBlockRootChain); - - if (SUCCEEDED(hr)) - hr = BlockChainStream_Flush(This->rootBlockChain); - - if (SUCCEEDED(hr)) - hr = BlockChainStream_Flush(This->smallBlockDepotChain); - - for (i=0; SUCCEEDED(hr) && i<BLOCKCHAIN_CACHE_SIZE; i++) - if (This->blockChainCache[i]) - hr = BlockChainStream_Flush(This->blockChainCache[i]); - - if (SUCCEEDED(hr)) - hr = ILockBytes_Flush(This->lockBytes); - - return hr; -} - -static void StorageImpl_Invalidate(StorageBaseImpl* iface) -{ - StorageImpl *This = (StorageImpl*) iface; - - StorageBaseImpl_DeleteAll(&This->base); - - This->base.reverted = TRUE; -} - -static void StorageImpl_Destroy(StorageBaseImpl* iface) -{ - StorageImpl *This = (StorageImpl*) iface; - int i; - TRACE("(%p)\n", This); - - StorageImpl_Flush(iface); - - StorageImpl_Invalidate(iface); - - HeapFree(GetProcessHeap(), 0, This->extBigBlockDepotLocations); - - BlockChainStream_Destroy(This->smallBlockRootChain); - BlockChainStream_Destroy(This->rootBlockChain); - BlockChainStream_Destroy(This->smallBlockDepotChain); - - for (i = 0; i < BLOCKCHAIN_CACHE_SIZE; i++) - BlockChainStream_Destroy(This->blockChainCache[i]); - - for (i = 0; i < ARRAY_SIZE(This->locked_bytes); i++) - { - ULARGE_INTEGER offset, cb; - cb.QuadPart = 1; - if (This->locked_bytes[i] != 0) - { - offset.QuadPart = This->locked_bytes[i]; - StorageImpl_UnlockRegion(This, offset, cb, LOCK_ONLYONCE); - } - } - - if (This->lockBytes) - ILockBytes_Release(This->lockBytes); - HeapFree(GetProcessHeap(), 0, This); -} - - -static const StorageBaseImplVtbl StorageImpl_BaseVtbl = -{ - StorageImpl_Destroy, - StorageImpl_Invalidate, - StorageImpl_Flush, - StorageImpl_GetFilename, - StorageImpl_CreateDirEntry, - StorageImpl_BaseWriteDirEntry, - StorageImpl_BaseReadDirEntry, - StorageImpl_DestroyDirEntry, - StorageImpl_StreamReadAt, - StorageImpl_StreamWriteAt, - StorageImpl_StreamSetSize, - StorageImpl_StreamLink, - StorageImpl_GetTransactionSig, - StorageImpl_SetTransactionSig, - StorageImpl_LockTransaction, - StorageImpl_UnlockTransaction -}; - - -/* - * Virtual function table for the IStorageBaseImpl class. - */ -static const IStorageVtbl StorageImpl_Vtbl = -{ - StorageBaseImpl_QueryInterface, - StorageBaseImpl_AddRef, - StorageBaseImpl_Release, - StorageBaseImpl_CreateStream, - StorageBaseImpl_OpenStream, - StorageBaseImpl_CreateStorage, - StorageBaseImpl_OpenStorage, - StorageBaseImpl_CopyTo, - StorageBaseImpl_MoveElementTo, - StorageBaseImpl_Commit, - StorageBaseImpl_Revert, - StorageBaseImpl_EnumElements, - StorageBaseImpl_DestroyElement, - StorageBaseImpl_RenameElement, - StorageBaseImpl_SetElementTimes, - StorageBaseImpl_SetClass, - StorageBaseImpl_SetStateBits, - StorageBaseImpl_Stat -}; - -static HRESULT StorageImpl_Construct( - HANDLE hFile, - LPCOLESTR pwcsName, - ILockBytes* pLkbyt, - DWORD openFlags, - BOOL fileBased, - BOOL create, - ULONG sector_size, - StorageImpl** result) -{ - StorageImpl* This; - HRESULT hr = S_OK; - STATSTG stat; - - if ( FAILED( validateSTGM(openFlags) )) - return STG_E_INVALIDFLAG; - - This = HeapAlloc(GetProcessHeap(), 0, sizeof(StorageImpl)); - if (!This) - return E_OUTOFMEMORY; - - memset(This, 0, sizeof(StorageImpl)); - - list_init(&This->base.strmHead); - - list_init(&This->base.storageHead); - - This->base.IStorage_iface.lpVtbl = &StorageImpl_Vtbl; - This->base.IPropertySetStorage_iface.lpVtbl = &IPropertySetStorage_Vtbl; - This->base.IDirectWriterLock_iface.lpVtbl = &DirectWriterLockVtbl; - This->base.baseVtbl = &StorageImpl_BaseVtbl; - This->base.openFlags = (openFlags & ~STGM_CREATE); - This->base.ref = 1; - This->base.create = create; - - if (openFlags == (STGM_DIRECT_SWMR|STGM_READWRITE|STGM_SHARE_DENY_WRITE)) - This->base.lockingrole = SWMR_Writer; - else if (openFlags == (STGM_DIRECT_SWMR|STGM_READ|STGM_SHARE_DENY_NONE)) - This->base.lockingrole = SWMR_Reader; - else - This->base.lockingrole = SWMR_None; - - This->base.reverted = FALSE; - - /* - * Initialize the big block cache. - */ - This->bigBlockSize = sector_size; - This->smallBlockSize = DEF_SMALL_BLOCK_SIZE; - if (hFile) - hr = FileLockBytesImpl_Construct(hFile, openFlags, pwcsName, &This->lockBytes); - else - { - This->lockBytes = pLkbyt; - ILockBytes_AddRef(pLkbyt); - } - - if (SUCCEEDED(hr)) - hr = ILockBytes_Stat(This->lockBytes, &stat, STATFLAG_NONAME); - - if (SUCCEEDED(hr)) - { - This->locks_supported = stat.grfLocksSupported; - if (!hFile) - /* Don't try to use wine-internal locking flag with custom ILockBytes */ - This->locks_supported &= ~WINE_LOCK_READ; - - hr = StorageImpl_GrabLocks(This, openFlags); - } - - if (SUCCEEDED(hr)) - hr = StorageImpl_Refresh(This, TRUE, create); - - if (FAILED(hr)) - { - IStorage_Release(&This->base.IStorage_iface); - *result = NULL; - } - else - { - StorageImpl_Flush(&This->base); - *result = This; - } - - return hr; -} - - -/************************************************************************ - * StorageInternalImpl implementation - ***********************************************************************/ - -static void StorageInternalImpl_Invalidate( StorageBaseImpl *base ) -{ - StorageInternalImpl* This = (StorageInternalImpl*) base; - - if (!This->base.reverted) - { - TRACE("Storage invalidated (stg=%p)\n", This); - - This->base.reverted = TRUE; - - This->parentStorage = NULL; - - StorageBaseImpl_DeleteAll(&This->base); - - list_remove(&This->ParentListEntry); - } -} - -static void StorageInternalImpl_Destroy( StorageBaseImpl *iface) -{ - StorageInternalImpl* This = (StorageInternalImpl*) iface; - - StorageInternalImpl_Invalidate(&This->base); - - HeapFree(GetProcessHeap(), 0, This); -} - -static HRESULT StorageInternalImpl_Flush(StorageBaseImpl* iface) -{ - StorageInternalImpl* This = (StorageInternalImpl*) iface; - - return StorageBaseImpl_Flush(This->parentStorage); -} - -static HRESULT StorageInternalImpl_GetFilename(StorageBaseImpl* iface, LPWSTR *result) -{ - StorageInternalImpl* This = (StorageInternalImpl*) iface; - - return StorageBaseImpl_GetFilename(This->parentStorage, result); -} - -static HRESULT StorageInternalImpl_CreateDirEntry(StorageBaseImpl *base, - const DirEntry *newData, DirRef *index) -{ - StorageInternalImpl* This = (StorageInternalImpl*) base; - - return StorageBaseImpl_CreateDirEntry(This->parentStorage, - newData, index); -} - -static HRESULT StorageInternalImpl_WriteDirEntry(StorageBaseImpl *base, - DirRef index, const DirEntry *data) -{ - StorageInternalImpl* This = (StorageInternalImpl*) base; - - return StorageBaseImpl_WriteDirEntry(This->parentStorage, - index, data); -} - -static HRESULT StorageInternalImpl_ReadDirEntry(StorageBaseImpl *base, - DirRef index, DirEntry *data) -{ - StorageInternalImpl* This = (StorageInternalImpl*) base; - - return StorageBaseImpl_ReadDirEntry(This->parentStorage, - index, data); -} - -static HRESULT StorageInternalImpl_DestroyDirEntry(StorageBaseImpl *base, - DirRef index) -{ - StorageInternalImpl* This = (StorageInternalImpl*) base; - - return StorageBaseImpl_DestroyDirEntry(This->parentStorage, - index); -} - -static HRESULT StorageInternalImpl_StreamReadAt(StorageBaseImpl *base, - DirRef index, ULARGE_INTEGER offset, ULONG size, void *buffer, ULONG *bytesRead) -{ - StorageInternalImpl* This = (StorageInternalImpl*) base; - - return StorageBaseImpl_StreamReadAt(This->parentStorage, - index, offset, size, buffer, bytesRead); -} - -static HRESULT StorageInternalImpl_StreamWriteAt(StorageBaseImpl *base, - DirRef index, ULARGE_INTEGER offset, ULONG size, const void *buffer, ULONG *bytesWritten) -{ - StorageInternalImpl* This = (StorageInternalImpl*) base; - - return StorageBaseImpl_StreamWriteAt(This->parentStorage, - index, offset, size, buffer, bytesWritten); -} - -static HRESULT StorageInternalImpl_StreamSetSize(StorageBaseImpl *base, - DirRef index, ULARGE_INTEGER newsize) -{ - StorageInternalImpl* This = (StorageInternalImpl*) base; - - return StorageBaseImpl_StreamSetSize(This->parentStorage, - index, newsize); -} - -static HRESULT StorageInternalImpl_StreamLink(StorageBaseImpl *base, - DirRef dst, DirRef src) -{ - StorageInternalImpl* This = (StorageInternalImpl*) base; - - return StorageBaseImpl_StreamLink(This->parentStorage, - dst, src); -} - -static HRESULT StorageInternalImpl_GetTransactionSig(StorageBaseImpl *base, - ULONG* result, BOOL refresh) -{ - return E_NOTIMPL; -} - -static HRESULT StorageInternalImpl_SetTransactionSig(StorageBaseImpl *base, - ULONG value) -{ - return E_NOTIMPL; -} - -static HRESULT StorageInternalImpl_LockTransaction(StorageBaseImpl *base, BOOL write) -{ - return E_NOTIMPL; -} - -static HRESULT StorageInternalImpl_UnlockTransaction(StorageBaseImpl *base, BOOL write) -{ - return E_NOTIMPL; -} - -/****************************************************************************** -** -** StorageInternalImpl_Commit -** -*/ -static HRESULT WINAPI StorageInternalImpl_Commit( - IStorage* iface, - DWORD grfCommitFlags) /* [in] */ -{ - StorageBaseImpl* This = impl_from_IStorage(iface); - TRACE("%p, %#lx.\n", iface, grfCommitFlags); - return StorageBaseImpl_Flush(This); -} - -/****************************************************************************** -** -** StorageInternalImpl_Revert -** -*/ -static HRESULT WINAPI StorageInternalImpl_Revert( - IStorage* iface) -{ - FIXME("(%p): stub\n", iface); - return S_OK; -} - -/* - * Virtual function table for the StorageInternalImpl class. - */ -static const IStorageVtbl StorageInternalImpl_Vtbl = -{ - StorageBaseImpl_QueryInterface, - StorageBaseImpl_AddRef, - StorageBaseImpl_Release, - StorageBaseImpl_CreateStream, - StorageBaseImpl_OpenStream, - StorageBaseImpl_CreateStorage, - StorageBaseImpl_OpenStorage, - StorageBaseImpl_CopyTo, - StorageBaseImpl_MoveElementTo, - StorageInternalImpl_Commit, - StorageInternalImpl_Revert, - StorageBaseImpl_EnumElements, - StorageBaseImpl_DestroyElement, - StorageBaseImpl_RenameElement, - StorageBaseImpl_SetElementTimes, - StorageBaseImpl_SetClass, - StorageBaseImpl_SetStateBits, - StorageBaseImpl_Stat -}; - -static const StorageBaseImplVtbl StorageInternalImpl_BaseVtbl = -{ - StorageInternalImpl_Destroy, - StorageInternalImpl_Invalidate, - StorageInternalImpl_Flush, - StorageInternalImpl_GetFilename, - StorageInternalImpl_CreateDirEntry, - StorageInternalImpl_WriteDirEntry, - StorageInternalImpl_ReadDirEntry, - StorageInternalImpl_DestroyDirEntry, - StorageInternalImpl_StreamReadAt, - StorageInternalImpl_StreamWriteAt, - StorageInternalImpl_StreamSetSize, - StorageInternalImpl_StreamLink, - StorageInternalImpl_GetTransactionSig, - StorageInternalImpl_SetTransactionSig, - StorageInternalImpl_LockTransaction, - StorageInternalImpl_UnlockTransaction -}; - -static StorageInternalImpl* StorageInternalImpl_Construct( - StorageBaseImpl* parentStorage, - DWORD openFlags, - DirRef storageDirEntry) -{ - StorageInternalImpl* newStorage; - - newStorage = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(StorageInternalImpl)); - - if (newStorage!=0) - { - list_init(&newStorage->base.strmHead); - - list_init(&newStorage->base.storageHead); - - /* - * Initialize the virtual function table. - */ - newStorage->base.IStorage_iface.lpVtbl = &StorageInternalImpl_Vtbl; - newStorage->base.IPropertySetStorage_iface.lpVtbl = &IPropertySetStorage_Vtbl; - newStorage->base.baseVtbl = &StorageInternalImpl_BaseVtbl; - newStorage->base.openFlags = (openFlags & ~STGM_CREATE); - - newStorage->base.reverted = FALSE; - - newStorage->base.ref = 1; - - newStorage->parentStorage = parentStorage; - - /* - * Keep a reference to the directory entry of this storage - */ - newStorage->base.storageDirEntry = storageDirEntry; - - newStorage->base.create = FALSE; - - return newStorage; - } - - return 0; -} - - -/************************************************************************ - * TransactedSnapshotImpl implementation - ***********************************************************************/ - -static DirRef TransactedSnapshotImpl_FindFreeEntry(TransactedSnapshotImpl *This) -{ - DirRef result=This->firstFreeEntry; - - while (result < This->entries_size && This->entries[result].inuse) - result++; - - if (result == This->entries_size) - { - ULONG new_size = This->entries_size * 2; - TransactedDirEntry *new_entries; - - new_entries = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(TransactedDirEntry) * new_size); - if (!new_entries) return DIRENTRY_NULL; - - memcpy(new_entries, This->entries, sizeof(TransactedDirEntry) * This->entries_size); - HeapFree(GetProcessHeap(), 0, This->entries); - - This->entries = new_entries; - This->entries_size = new_size; - } - - This->entries[result].inuse = TRUE; - - This->firstFreeEntry = result+1; - - return result; -} - -static DirRef TransactedSnapshotImpl_CreateStubEntry( - TransactedSnapshotImpl *This, DirRef parentEntryRef) -{ - DirRef stubEntryRef; - TransactedDirEntry *entry; - - stubEntryRef = TransactedSnapshotImpl_FindFreeEntry(This); - - if (stubEntryRef != DIRENTRY_NULL) - { - entry = &This->entries[stubEntryRef]; - - entry->newTransactedParentEntry = entry->transactedParentEntry = parentEntryRef; - - entry->read = FALSE; - } - - return stubEntryRef; -} - -static HRESULT TransactedSnapshotImpl_EnsureReadEntry( - TransactedSnapshotImpl *This, DirRef entry) -{ - HRESULT hr=S_OK; - DirEntry data; - - if (!This->entries[entry].read) - { - hr = StorageBaseImpl_ReadDirEntry(This->transactedParent, - This->entries[entry].transactedParentEntry, - &data); - - if (SUCCEEDED(hr) && data.leftChild != DIRENTRY_NULL) - { - data.leftChild = TransactedSnapshotImpl_CreateStubEntry(This, data.leftChild); - - if (data.leftChild == DIRENTRY_NULL) - hr = E_OUTOFMEMORY; - } - - if (SUCCEEDED(hr) && data.rightChild != DIRENTRY_NULL) - { - data.rightChild = TransactedSnapshotImpl_CreateStubEntry(This, data.rightChild); - - if (data.rightChild == DIRENTRY_NULL) - hr = E_OUTOFMEMORY; - } - - if (SUCCEEDED(hr) && data.dirRootEntry != DIRENTRY_NULL) - { - data.dirRootEntry = TransactedSnapshotImpl_CreateStubEntry(This, data.dirRootEntry); - - if (data.dirRootEntry == DIRENTRY_NULL) - hr = E_OUTOFMEMORY; - } - - if (SUCCEEDED(hr)) - { - memcpy(&This->entries[entry].data, &data, sizeof(DirEntry)); - This->entries[entry].read = TRUE; - } - } - - return hr; -} - -static HRESULT TransactedSnapshotImpl_MakeStreamDirty( - TransactedSnapshotImpl *This, DirRef entry) -{ - HRESULT hr = S_OK; - - if (!This->entries[entry].stream_dirty) - { - DirEntry new_entrydata; - - memset(&new_entrydata, 0, sizeof(DirEntry)); - new_entrydata.name[0] = 'S'; - new_entrydata.sizeOfNameString = 1; - new_entrydata.stgType = STGTY_STREAM; - new_entrydata.startingBlock = BLOCK_END_OF_CHAIN; - new_entrydata.leftChild = DIRENTRY_NULL; - new_entrydata.rightChild = DIRENTRY_NULL; - new_entrydata.dirRootEntry = DIRENTRY_NULL; - - hr = StorageBaseImpl_CreateDirEntry(This->scratch, &new_entrydata, - &This->entries[entry].stream_entry); - - if (SUCCEEDED(hr) && This->entries[entry].transactedParentEntry != DIRENTRY_NULL) - { - hr = StorageBaseImpl_CopyStream( - This->scratch, This->entries[entry].stream_entry, - This->transactedParent, This->entries[entry].transactedParentEntry); - - if (FAILED(hr)) - StorageBaseImpl_DestroyDirEntry(This->scratch, This->entries[entry].stream_entry); - } - - if (SUCCEEDED(hr)) - This->entries[entry].stream_dirty = TRUE; - - if (This->entries[entry].transactedParentEntry != DIRENTRY_NULL) - { - /* Since this entry is modified, and we aren't using its stream data, we - * no longer care about the original entry. */ - DirRef delete_ref; - delete_ref = TransactedSnapshotImpl_CreateStubEntry(This, This->entries[entry].transactedParentEntry); - - if (delete_ref != DIRENTRY_NULL) - This->entries[delete_ref].deleted = TRUE; - - This->entries[entry].transactedParentEntry = This->entries[entry].newTransactedParentEntry = DIRENTRY_NULL; - } - } - - return hr; -} - -/* Find the first entry in a depth-first traversal. */ -static DirRef TransactedSnapshotImpl_FindFirstChild( - TransactedSnapshotImpl* This, DirRef parent) -{ - DirRef cursor, prev; - TransactedDirEntry *entry; - - cursor = parent; - entry = &This->entries[cursor]; - while (entry->read) - { - if (entry->data.leftChild != DIRENTRY_NULL) - { - prev = cursor; - cursor = entry->data.leftChild; - entry = &This->entries[cursor]; - entry->parent = prev; - } - else if (entry->data.rightChild != DIRENTRY_NULL) - { - prev = cursor; - cursor = entry->data.rightChild; - entry = &This->entries[cursor]; - entry->parent = prev; - } - else if (entry->data.dirRootEntry != DIRENTRY_NULL) - { - prev = cursor; - cursor = entry->data.dirRootEntry; - entry = &This->entries[cursor]; - entry->parent = prev; - } - else - break; - } - - return cursor; -} - -/* Find the next entry in a depth-first traversal. */ -static DirRef TransactedSnapshotImpl_FindNextChild( - TransactedSnapshotImpl* This, DirRef current) -{ - DirRef parent; - TransactedDirEntry *parent_entry; - - parent = This->entries[current].parent; - parent_entry = &This->entries[parent]; - - if (parent != DIRENTRY_NULL && parent_entry->data.dirRootEntry != current) - { - if (parent_entry->data.rightChild != current && parent_entry->data.rightChild != DIRENTRY_NULL) - { - This->entries[parent_entry->data.rightChild].parent = parent; - return TransactedSnapshotImpl_FindFirstChild(This, parent_entry->data.rightChild); - } - - if (parent_entry->data.dirRootEntry != DIRENTRY_NULL) - { - This->entries[parent_entry->data.dirRootEntry].parent = parent; - return TransactedSnapshotImpl_FindFirstChild(This, parent_entry->data.dirRootEntry); - } - } - - return parent; -} - -/* Return TRUE if we've made a copy of this entry for committing to the parent. */ -static inline BOOL TransactedSnapshotImpl_MadeCopy( - TransactedSnapshotImpl* This, DirRef entry) -{ - return entry != DIRENTRY_NULL && - This->entries[entry].newTransactedParentEntry != This->entries[entry].transactedParentEntry; -} - -/* Destroy the entries created by CopyTree. */ -static void TransactedSnapshotImpl_DestroyTemporaryCopy( - TransactedSnapshotImpl* This, DirRef stop) -{ - DirRef cursor; - TransactedDirEntry *entry; - ULARGE_INTEGER zero; - - zero.QuadPart = 0; - - if (!This->entries[This->base.storageDirEntry].read) - return; - - cursor = This->entries[This->base.storageDirEntry].data.dirRootEntry; - - if (cursor == DIRENTRY_NULL) - return; - - cursor = TransactedSnapshotImpl_FindFirstChild(This, cursor); - - while (cursor != DIRENTRY_NULL && cursor != stop) - { - if (TransactedSnapshotImpl_MadeCopy(This, cursor)) - { - entry = &This->entries[cursor]; - - if (entry->stream_dirty) - StorageBaseImpl_StreamSetSize(This->transactedParent, - entry->newTransactedParentEntry, zero); - - StorageBaseImpl_DestroyDirEntry(This->transactedParent, - entry->newTransactedParentEntry); - - entry->newTransactedParentEntry = entry->transactedParentEntry; - } - - cursor = TransactedSnapshotImpl_FindNextChild(This, cursor); - } -} - -/* Make a copy of our edited tree that we can use in the parent. */ -static HRESULT TransactedSnapshotImpl_CopyTree(TransactedSnapshotImpl* This) -{ - DirRef cursor; - TransactedDirEntry *entry; - HRESULT hr = S_OK; - - cursor = This->base.storageDirEntry; - entry = &This->entries[cursor]; - entry->parent = DIRENTRY_NULL; - entry->newTransactedParentEntry = entry->transactedParentEntry; - - if (entry->data.dirRootEntry == DIRENTRY_NULL) - return S_OK; - - This->entries[entry->data.dirRootEntry].parent = DIRENTRY_NULL; - - cursor = TransactedSnapshotImpl_FindFirstChild(This, entry->data.dirRootEntry); - entry = &This->entries[cursor]; - - while (cursor != DIRENTRY_NULL) - { - /* Make a copy of this entry in the transacted parent. */ - if (!entry->read || - (!entry->dirty && !entry->stream_dirty && - !TransactedSnapshotImpl_MadeCopy(This, entry->data.leftChild) && - !TransactedSnapshotImpl_MadeCopy(This, entry->data.rightChild) && - !TransactedSnapshotImpl_MadeCopy(This, entry->data.dirRootEntry))) - entry->newTransactedParentEntry = entry->transactedParentEntry; - else - { - DirEntry newData; - - memcpy(&newData, &entry->data, sizeof(DirEntry)); - - newData.size.QuadPart = 0; - newData.startingBlock = BLOCK_END_OF_CHAIN; - - if (newData.leftChild != DIRENTRY_NULL) - newData.leftChild = This->entries[newData.leftChild].newTransactedParentEntry; - - if (newData.rightChild != DIRENTRY_NULL) - newData.rightChild = This->entries[newData.rightChild].newTransactedParentEntry; - - if (newData.dirRootEntry != DIRENTRY_NULL) - newData.dirRootEntry = This->entries[newData.dirRootEntry].newTransactedParentEntry; - - hr = StorageBaseImpl_CreateDirEntry(This->transactedParent, &newData, - &entry->newTransactedParentEntry); - if (FAILED(hr)) - { - TransactedSnapshotImpl_DestroyTemporaryCopy(This, cursor); - return hr; - } - - if (entry->stream_dirty) - { - hr = StorageBaseImpl_CopyStream( - This->transactedParent, entry->newTransactedParentEntry, - This->scratch, entry->stream_entry); - } - else if (entry->data.size.QuadPart) - { - hr = StorageBaseImpl_StreamLink( - This->transactedParent, entry->newTransactedParentEntry, - entry->transactedParentEntry); - } - - if (FAILED(hr)) - { - cursor = TransactedSnapshotImpl_FindNextChild(This, cursor); - TransactedSnapshotImpl_DestroyTemporaryCopy(This, cursor); - return hr; - } - } - - cursor = TransactedSnapshotImpl_FindNextChild(This, cursor); - entry = &This->entries[cursor]; - } - - return hr; -} - -static HRESULT WINAPI TransactedSnapshotImpl_Commit( - IStorage* iface, - DWORD grfCommitFlags) /* [in] */ -{ - TransactedSnapshotImpl* This = (TransactedSnapshotImpl*)impl_from_IStorage(iface); - TransactedDirEntry *root_entry; - DirRef i, dir_root_ref; - DirEntry data; - ULARGE_INTEGER zero; - HRESULT hr; - ULONG transactionSig; - - zero.QuadPart = 0; - - TRACE("%p, %#lx.\n", iface, grfCommitFlags); - - /* Cannot commit a read-only transacted storage */ - if ( STGM_ACCESS_MODE( This->base.openFlags ) == STGM_READ ) - return STG_E_ACCESSDENIED; - - hr = StorageBaseImpl_LockTransaction(This->transactedParent, TRUE); - if (hr == E_NOTIMPL) hr = S_OK; - if (SUCCEEDED(hr)) - { - hr = StorageBaseImpl_GetTransactionSig(This->transactedParent, &transactionSig, TRUE); - if (SUCCEEDED(hr)) - { - if (transactionSig != This->lastTransactionSig) - { - ERR("file was externally modified\n"); - hr = STG_E_NOTCURRENT; - } - - if (SUCCEEDED(hr)) - { - This->lastTransactionSig = transactionSig+1; - hr = StorageBaseImpl_SetTransactionSig(This->transactedParent, This->lastTransactionSig); - } - } - else if (hr == E_NOTIMPL) - hr = S_OK; - - if (FAILED(hr)) goto end; - - /* To prevent data loss, we create the new structure in the file before we - * delete the old one, so that in case of errors the old data is intact. We - * shouldn't do this if STGC_OVERWRITE is set, but that flag should only be - * needed in the rare situation where we have just enough free disk space to - * overwrite the existing data. */ - - root_entry = &This->entries[This->base.storageDirEntry]; - - if (!root_entry->read) - goto end; - - hr = TransactedSnapshotImpl_CopyTree(This); - if (FAILED(hr)) goto end; - - if (root_entry->data.dirRootEntry == DIRENTRY_NULL) - dir_root_ref = DIRENTRY_NULL; - else - dir_root_ref = This->entries[root_entry->data.dirRootEntry].newTransactedParentEntry; - - hr = StorageBaseImpl_Flush(This->transactedParent); - - /* Update the storage to use the new data in one step. */ - if (SUCCEEDED(hr)) - hr = StorageBaseImpl_ReadDirEntry(This->transactedParent, - root_entry->transactedParentEntry, &data); - - if (SUCCEEDED(hr)) - { - data.dirRootEntry = dir_root_ref; - data.clsid = root_entry->data.clsid; - data.ctime = root_entry->data.ctime; - data.mtime = root_entry->data.mtime; - - hr = StorageBaseImpl_WriteDirEntry(This->transactedParent, - root_entry->transactedParentEntry, &data); - } - - /* Try to flush after updating the root storage, but if the flush fails, keep - * going, on the theory that it'll either succeed later or the subsequent - * writes will fail. */ - StorageBaseImpl_Flush(This->transactedParent); - - if (SUCCEEDED(hr)) - { - /* Destroy the old now-orphaned data. */ - for (i=0; i<This->entries_size; i++) - { - TransactedDirEntry *entry = &This->entries[i]; - if (entry->inuse) - { - if (entry->deleted) - { - StorageBaseImpl_StreamSetSize(This->transactedParent, - entry->transactedParentEntry, zero); - StorageBaseImpl_DestroyDirEntry(This->transactedParent, - entry->transactedParentEntry); - memset(entry, 0, sizeof(TransactedDirEntry)); - This->firstFreeEntry = min(i, This->firstFreeEntry); - } - else if (entry->read && entry->transactedParentEntry != entry->newTransactedParentEntry) - { - if (entry->transactedParentEntry != DIRENTRY_NULL) - StorageBaseImpl_DestroyDirEntry(This->transactedParent, - entry->transactedParentEntry); - if (entry->stream_dirty) - { - StorageBaseImpl_StreamSetSize(This->scratch, entry->stream_entry, zero); - StorageBaseImpl_DestroyDirEntry(This->scratch, entry->stream_entry); - entry->stream_dirty = FALSE; - } - entry->dirty = FALSE; - entry->transactedParentEntry = entry->newTransactedParentEntry; - } - } - } - } - else - { - TransactedSnapshotImpl_DestroyTemporaryCopy(This, DIRENTRY_NULL); - } - - if (SUCCEEDED(hr)) - hr = StorageBaseImpl_Flush(This->transactedParent); -end: - StorageBaseImpl_UnlockTransaction(This->transactedParent, TRUE); - } - - TRACE("<-- %#lx\n", hr); - return hr; -} - -static HRESULT WINAPI TransactedSnapshotImpl_Revert( - IStorage* iface) -{ - TransactedSnapshotImpl* This = (TransactedSnapshotImpl*)impl_from_IStorage(iface); - ULARGE_INTEGER zero; - ULONG i; - - TRACE("(%p)\n", iface); - - /* Destroy the open objects. */ - StorageBaseImpl_DeleteAll(&This->base); - - /* Clear out the scratch file. */ - zero.QuadPart = 0; - for (i=0; i<This->entries_size; i++) - { - if (This->entries[i].stream_dirty) - { - StorageBaseImpl_StreamSetSize(This->scratch, This->entries[i].stream_entry, - zero); - - StorageBaseImpl_DestroyDirEntry(This->scratch, This->entries[i].stream_entry); - } - } - - memset(This->entries, 0, sizeof(TransactedDirEntry) * This->entries_size); - - This->firstFreeEntry = 0; - This->base.storageDirEntry = TransactedSnapshotImpl_CreateStubEntry(This, This->transactedParent->storageDirEntry); - - return S_OK; -} - -static void TransactedSnapshotImpl_Invalidate(StorageBaseImpl* This) -{ - if (!This->reverted) - { - TRACE("Storage invalidated (stg=%p)\n", This); - - This->reverted = TRUE; - - StorageBaseImpl_DeleteAll(This); - } -} - -static void TransactedSnapshotImpl_Destroy( StorageBaseImpl *iface) -{ - TransactedSnapshotImpl* This = (TransactedSnapshotImpl*) iface; - - IStorage_Revert(&This->base.IStorage_iface); - IStorage_Release(&This->transactedParent->IStorage_iface); - IStorage_Release(&This->scratch->IStorage_iface); - HeapFree(GetProcessHeap(), 0, This->entries); - HeapFree(GetProcessHeap(), 0, This); -} - -static HRESULT TransactedSnapshotImpl_Flush(StorageBaseImpl* iface) -{ - /* We only need to flush when committing. */ - return S_OK; -} - -static HRESULT TransactedSnapshotImpl_GetFilename(StorageBaseImpl* iface, LPWSTR *result) -{ - TransactedSnapshotImpl* This = (TransactedSnapshotImpl*) iface; - - return StorageBaseImpl_GetFilename(This->transactedParent, result); -} - -static HRESULT TransactedSnapshotImpl_CreateDirEntry(StorageBaseImpl *base, - const DirEntry *newData, DirRef *index) -{ - TransactedSnapshotImpl* This = (TransactedSnapshotImpl*) base; - DirRef new_ref; - TransactedDirEntry *new_entry; - - new_ref = TransactedSnapshotImpl_FindFreeEntry(This); - if (new_ref == DIRENTRY_NULL) - return E_OUTOFMEMORY; - - new_entry = &This->entries[new_ref]; - - new_entry->newTransactedParentEntry = new_entry->transactedParentEntry = DIRENTRY_NULL; - new_entry->read = TRUE; - new_entry->dirty = TRUE; - memcpy(&new_entry->data, newData, sizeof(DirEntry)); - - *index = new_ref; - - TRACE("%s l=%lx r=%lx d=%lx <-- %lx\n", debugstr_w(newData->name), newData->leftChild, newData->rightChild, newData->dirRootEntry, *index); - - return S_OK; -} - -static HRESULT TransactedSnapshotImpl_WriteDirEntry(StorageBaseImpl *base, - DirRef index, const DirEntry *data) -{ - TransactedSnapshotImpl* This = (TransactedSnapshotImpl*) base; - HRESULT hr; - - TRACE("%lx %s l=%lx r=%lx d=%lx\n", index, debugstr_w(data->name), data->leftChild, data->rightChild, data->dirRootEntry); - - hr = TransactedSnapshotImpl_EnsureReadEntry(This, index); - if (FAILED(hr)) - { - TRACE("<-- %#lx\n", hr); - return hr; - } - - memcpy(&This->entries[index].data, data, sizeof(DirEntry)); - - if (index != This->base.storageDirEntry) - { - This->entries[index].dirty = TRUE; - - if (data->size.QuadPart == 0 && - This->entries[index].transactedParentEntry != DIRENTRY_NULL) - { - /* Since this entry is modified, and we aren't using its stream data, we - * no longer care about the original entry. */ - DirRef delete_ref; - delete_ref = TransactedSnapshotImpl_CreateStubEntry(This, This->entries[index].transactedParentEntry); - - if (delete_ref != DIRENTRY_NULL) - This->entries[delete_ref].deleted = TRUE; - - This->entries[index].transactedParentEntry = This->entries[index].newTransactedParentEntry = DIRENTRY_NULL; - } - } - TRACE("<-- S_OK\n"); - return S_OK; -} - -static HRESULT TransactedSnapshotImpl_ReadDirEntry(StorageBaseImpl *base, - DirRef index, DirEntry *data) -{ - TransactedSnapshotImpl* This = (TransactedSnapshotImpl*) base; - HRESULT hr; - - hr = TransactedSnapshotImpl_EnsureReadEntry(This, index); - if (FAILED(hr)) - { - TRACE("<-- %#lx\n", hr); - return hr; - } - - memcpy(data, &This->entries[index].data, sizeof(DirEntry)); - - TRACE("%lx %s l=%lx r=%lx d=%lx\n", index, debugstr_w(data->name), data->leftChild, data->rightChild, data->dirRootEntry); - - return S_OK; -} - -static HRESULT TransactedSnapshotImpl_DestroyDirEntry(StorageBaseImpl *base, - DirRef index) -{ - TransactedSnapshotImpl* This = (TransactedSnapshotImpl*) base; - - if (This->entries[index].transactedParentEntry == DIRENTRY_NULL || - This->entries[index].data.size.QuadPart != 0) - { - /* If we deleted this entry while it has stream data. We must have left the - * data because some other entry is using it, and we need to leave the - * original entry alone. */ - memset(&This->entries[index], 0, sizeof(TransactedDirEntry)); - This->firstFreeEntry = min(index, This->firstFreeEntry); - } - else - { - This->entries[index].deleted = TRUE; - } - - return S_OK; -} - -static HRESULT TransactedSnapshotImpl_StreamReadAt(StorageBaseImpl *base, - DirRef index, ULARGE_INTEGER offset, ULONG size, void *buffer, ULONG *bytesRead) -{ - TransactedSnapshotImpl* This = (TransactedSnapshotImpl*) base; - - if (This->entries[index].stream_dirty) - { - return StorageBaseImpl_StreamReadAt(This->scratch, - This->entries[index].stream_entry, offset, size, buffer, bytesRead); - } - else if (This->entries[index].transactedParentEntry == DIRENTRY_NULL) - { - /* This stream doesn't live in the parent, and we haven't allocated storage - * for it yet */ - *bytesRead = 0; - return S_OK; - } - else - { - return StorageBaseImpl_StreamReadAt(This->transactedParent, - This->entries[index].transactedParentEntry, offset, size, buffer, bytesRead); - } -} - -static HRESULT TransactedSnapshotImpl_StreamWriteAt(StorageBaseImpl *base, - DirRef index, ULARGE_INTEGER offset, ULONG size, const void *buffer, ULONG *bytesWritten) -{ - TransactedSnapshotImpl* This = (TransactedSnapshotImpl*) base; - HRESULT hr; - - hr = TransactedSnapshotImpl_EnsureReadEntry(This, index); - if (FAILED(hr)) - { - TRACE("<-- %#lx\n", hr); - return hr; - } - - hr = TransactedSnapshotImpl_MakeStreamDirty(This, index); - if (FAILED(hr)) - { - TRACE("<-- %#lx\n", hr); - return hr; - } - - hr = StorageBaseImpl_StreamWriteAt(This->scratch, - This->entries[index].stream_entry, offset, size, buffer, bytesWritten); - - if (SUCCEEDED(hr) && size != 0) - This->entries[index].data.size.QuadPart = max( - This->entries[index].data.size.QuadPart, - offset.QuadPart + size); - - TRACE("<-- %#lx\n", hr); - return hr; -} - -static HRESULT TransactedSnapshotImpl_StreamSetSize(StorageBaseImpl *base, - DirRef index, ULARGE_INTEGER newsize) -{ - TransactedSnapshotImpl* This = (TransactedSnapshotImpl*) base; - HRESULT hr; - - hr = TransactedSnapshotImpl_EnsureReadEntry(This, index); - if (FAILED(hr)) - { - TRACE("<-- %#lx\n", hr); - return hr; - } - - if (This->entries[index].data.size.QuadPart == newsize.QuadPart) - return S_OK; - - if (newsize.QuadPart == 0) - { - /* Destroy any parent references or entries in the scratch file. */ - if (This->entries[index].stream_dirty) - { - ULARGE_INTEGER zero; - zero.QuadPart = 0; - StorageBaseImpl_StreamSetSize(This->scratch, - This->entries[index].stream_entry, zero); - StorageBaseImpl_DestroyDirEntry(This->scratch, - This->entries[index].stream_entry); - This->entries[index].stream_dirty = FALSE; - } - else if (This->entries[index].transactedParentEntry != DIRENTRY_NULL) - { - DirRef delete_ref; - delete_ref = TransactedSnapshotImpl_CreateStubEntry(This, This->entries[index].transactedParentEntry); - - if (delete_ref != DIRENTRY_NULL) - This->entries[delete_ref].deleted = TRUE; - - This->entries[index].transactedParentEntry = This->entries[index].newTransactedParentEntry = DIRENTRY_NULL; - } - } - else - { - hr = TransactedSnapshotImpl_MakeStreamDirty(This, index); - if (FAILED(hr)) return hr; - - hr = StorageBaseImpl_StreamSetSize(This->scratch, - This->entries[index].stream_entry, newsize); - } - - if (SUCCEEDED(hr)) - This->entries[index].data.size = newsize; - - TRACE("<-- %#lx\n", hr); - return hr; -} - -static HRESULT TransactedSnapshotImpl_StreamLink(StorageBaseImpl *base, - DirRef dst, DirRef src) -{ - TransactedSnapshotImpl* This = (TransactedSnapshotImpl*) base; - HRESULT hr; - TransactedDirEntry *dst_entry, *src_entry; - - hr = TransactedSnapshotImpl_EnsureReadEntry(This, src); - if (FAILED(hr)) - { - TRACE("<-- %#lx\n", hr); - return hr; - } - - hr = TransactedSnapshotImpl_EnsureReadEntry(This, dst); - if (FAILED(hr)) - { - TRACE("<-- %#lx\n", hr); - return hr; - } - - dst_entry = &This->entries[dst]; - src_entry = &This->entries[src]; - - dst_entry->stream_dirty = src_entry->stream_dirty; - dst_entry->stream_entry = src_entry->stream_entry; - dst_entry->transactedParentEntry = src_entry->transactedParentEntry; - dst_entry->newTransactedParentEntry = src_entry->newTransactedParentEntry; - dst_entry->data.size = src_entry->data.size; - - return S_OK; -} - -static HRESULT TransactedSnapshotImpl_GetTransactionSig(StorageBaseImpl *base, - ULONG* result, BOOL refresh) -{ - return E_NOTIMPL; -} - -static HRESULT TransactedSnapshotImpl_SetTransactionSig(StorageBaseImpl *base, - ULONG value) -{ - return E_NOTIMPL; -} - -static HRESULT TransactedSnapshotImpl_LockTransaction(StorageBaseImpl *base, BOOL write) -{ - return E_NOTIMPL; -} - -static HRESULT TransactedSnapshotImpl_UnlockTransaction(StorageBaseImpl *base, BOOL write) -{ - return E_NOTIMPL; -} - -static const IStorageVtbl TransactedSnapshotImpl_Vtbl = -{ - StorageBaseImpl_QueryInterface, - StorageBaseImpl_AddRef, - StorageBaseImpl_Release, - StorageBaseImpl_CreateStream, - StorageBaseImpl_OpenStream, - StorageBaseImpl_CreateStorage, - StorageBaseImpl_OpenStorage, - StorageBaseImpl_CopyTo, - StorageBaseImpl_MoveElementTo, - TransactedSnapshotImpl_Commit, - TransactedSnapshotImpl_Revert, - StorageBaseImpl_EnumElements, - StorageBaseImpl_DestroyElement, - StorageBaseImpl_RenameElement, - StorageBaseImpl_SetElementTimes, - StorageBaseImpl_SetClass, - StorageBaseImpl_SetStateBits, - StorageBaseImpl_Stat -}; - -static const StorageBaseImplVtbl TransactedSnapshotImpl_BaseVtbl = -{ - TransactedSnapshotImpl_Destroy, - TransactedSnapshotImpl_Invalidate, - TransactedSnapshotImpl_Flush, - TransactedSnapshotImpl_GetFilename, - TransactedSnapshotImpl_CreateDirEntry, - TransactedSnapshotImpl_WriteDirEntry, - TransactedSnapshotImpl_ReadDirEntry, - TransactedSnapshotImpl_DestroyDirEntry, - TransactedSnapshotImpl_StreamReadAt, - TransactedSnapshotImpl_StreamWriteAt, - TransactedSnapshotImpl_StreamSetSize, - TransactedSnapshotImpl_StreamLink, - TransactedSnapshotImpl_GetTransactionSig, - TransactedSnapshotImpl_SetTransactionSig, - TransactedSnapshotImpl_LockTransaction, - TransactedSnapshotImpl_UnlockTransaction -}; - -static HRESULT TransactedSnapshotImpl_Construct(StorageBaseImpl *parentStorage, - TransactedSnapshotImpl** result) -{ - HRESULT hr; - - *result = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(TransactedSnapshotImpl)); - if (*result) - { - IStorage *scratch; - - (*result)->base.IStorage_iface.lpVtbl = &TransactedSnapshotImpl_Vtbl; - - /* This is OK because the property set storage functions use the IStorage functions. */ - (*result)->base.IPropertySetStorage_iface.lpVtbl = parentStorage->IPropertySetStorage_iface.lpVtbl; - (*result)->base.baseVtbl = &TransactedSnapshotImpl_BaseVtbl; - - list_init(&(*result)->base.strmHead); - - list_init(&(*result)->base.storageHead); - - (*result)->base.ref = 1; - - (*result)->base.openFlags = parentStorage->openFlags; - - /* This cannot fail, except with E_NOTIMPL in which case we don't care */ - StorageBaseImpl_GetTransactionSig(parentStorage, &(*result)->lastTransactionSig, FALSE); - - /* Create a new temporary storage to act as the scratch file. */ - hr = StgCreateDocfile(NULL, STGM_READWRITE|STGM_SHARE_EXCLUSIVE|STGM_CREATE|STGM_DELETEONRELEASE, - 0, &scratch); - (*result)->scratch = impl_from_IStorage(scratch); - - if (SUCCEEDED(hr)) - { - ULONG num_entries = 20; - - (*result)->entries = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(TransactedDirEntry) * num_entries); - (*result)->entries_size = num_entries; - (*result)->firstFreeEntry = 0; - - if ((*result)->entries) - { - /* parentStorage already has 1 reference, which we take over here. */ - (*result)->transactedParent = parentStorage; - - parentStorage->transactedChild = &(*result)->base; - - (*result)->base.storageDirEntry = TransactedSnapshotImpl_CreateStubEntry(*result, parentStorage->storageDirEntry); - } - else - { - IStorage_Release(scratch); - - hr = E_OUTOFMEMORY; - } - } - - if (FAILED(hr)) HeapFree(GetProcessHeap(), 0, *result); - - return hr; - } - else - return E_OUTOFMEMORY; -} - - -/************************************************************************ - * TransactedSharedImpl implementation - ***********************************************************************/ - -static void TransactedSharedImpl_Invalidate(StorageBaseImpl* This) -{ - if (!This->reverted) - { - TRACE("Storage invalidated (stg=%p)\n", This); - - This->reverted = TRUE; - - StorageBaseImpl_DeleteAll(This); - } -} - -static void TransactedSharedImpl_Destroy( StorageBaseImpl *iface) -{ - TransactedSharedImpl* This = (TransactedSharedImpl*) iface; - - TransactedSharedImpl_Invalidate(&This->base); - IStorage_Release(&This->transactedParent->IStorage_iface); - IStorage_Release(&This->scratch->base.IStorage_iface); - HeapFree(GetProcessHeap(), 0, This); -} - -static HRESULT TransactedSharedImpl_Flush(StorageBaseImpl* iface) -{ - /* We only need to flush when committing. */ - return S_OK; -} - -static HRESULT TransactedSharedImpl_GetFilename(StorageBaseImpl* iface, LPWSTR *result) -{ - TransactedSharedImpl* This = (TransactedSharedImpl*) iface; - - return StorageBaseImpl_GetFilename(This->transactedParent, result); -} - -static HRESULT TransactedSharedImpl_CreateDirEntry(StorageBaseImpl *base, - const DirEntry *newData, DirRef *index) -{ - TransactedSharedImpl* This = (TransactedSharedImpl*) base; - - return StorageBaseImpl_CreateDirEntry(&This->scratch->base, - newData, index); -} - -static HRESULT TransactedSharedImpl_WriteDirEntry(StorageBaseImpl *base, - DirRef index, const DirEntry *data) -{ - TransactedSharedImpl* This = (TransactedSharedImpl*) base; - - return StorageBaseImpl_WriteDirEntry(&This->scratch->base, - index, data); -} - -static HRESULT TransactedSharedImpl_ReadDirEntry(StorageBaseImpl *base, - DirRef index, DirEntry *data) -{ - TransactedSharedImpl* This = (TransactedSharedImpl*) base; - - return StorageBaseImpl_ReadDirEntry(&This->scratch->base, - index, data); -} - -static HRESULT TransactedSharedImpl_DestroyDirEntry(StorageBaseImpl *base, - DirRef index) -{ - TransactedSharedImpl* This = (TransactedSharedImpl*) base; - - return StorageBaseImpl_DestroyDirEntry(&This->scratch->base, - index); -} - -static HRESULT TransactedSharedImpl_StreamReadAt(StorageBaseImpl *base, - DirRef index, ULARGE_INTEGER offset, ULONG size, void *buffer, ULONG *bytesRead) -{ - TransactedSharedImpl* This = (TransactedSharedImpl*) base; - - return StorageBaseImpl_StreamReadAt(&This->scratch->base, - index, offset, size, buffer, bytesRead); -} - -static HRESULT TransactedSharedImpl_StreamWriteAt(StorageBaseImpl *base, - DirRef index, ULARGE_INTEGER offset, ULONG size, const void *buffer, ULONG *bytesWritten) -{ - TransactedSharedImpl* This = (TransactedSharedImpl*) base; - - return StorageBaseImpl_StreamWriteAt(&This->scratch->base, - index, offset, size, buffer, bytesWritten); -} - -static HRESULT TransactedSharedImpl_StreamSetSize(StorageBaseImpl *base, - DirRef index, ULARGE_INTEGER newsize) -{ - TransactedSharedImpl* This = (TransactedSharedImpl*) base; - - return StorageBaseImpl_StreamSetSize(&This->scratch->base, - index, newsize); -} - -static HRESULT TransactedSharedImpl_StreamLink(StorageBaseImpl *base, - DirRef dst, DirRef src) -{ - TransactedSharedImpl* This = (TransactedSharedImpl*) base; - - return StorageBaseImpl_StreamLink(&This->scratch->base, - dst, src); -} - -static HRESULT TransactedSharedImpl_GetTransactionSig(StorageBaseImpl *base, - ULONG* result, BOOL refresh) -{ - return E_NOTIMPL; -} - -static HRESULT TransactedSharedImpl_SetTransactionSig(StorageBaseImpl *base, - ULONG value) -{ - return E_NOTIMPL; -} - -static HRESULT TransactedSharedImpl_LockTransaction(StorageBaseImpl *base, BOOL write) -{ - return E_NOTIMPL; -} - -static HRESULT TransactedSharedImpl_UnlockTransaction(StorageBaseImpl *base, BOOL write) -{ - return E_NOTIMPL; -} - -static HRESULT WINAPI TransactedSharedImpl_Commit( - IStorage* iface, - DWORD grfCommitFlags) /* [in] */ -{ - TransactedSharedImpl* This = (TransactedSharedImpl*)impl_from_IStorage(iface); - DirRef new_storage_ref, prev_storage_ref; - DirEntry src_data, dst_data; - HRESULT hr; - ULONG transactionSig; - - TRACE("%p, %#lx\n", iface, grfCommitFlags); - - /* Cannot commit a read-only transacted storage */ - if ( STGM_ACCESS_MODE( This->base.openFlags ) == STGM_READ ) - return STG_E_ACCESSDENIED; - - hr = StorageBaseImpl_LockTransaction(This->transactedParent, TRUE); - if (hr == E_NOTIMPL) hr = S_OK; - if (SUCCEEDED(hr)) - { - hr = StorageBaseImpl_GetTransactionSig(This->transactedParent, &transactionSig, TRUE); - if (SUCCEEDED(hr)) - { - if ((grfCommitFlags & STGC_ONLYIFCURRENT) && transactionSig != This->lastTransactionSig) - hr = STG_E_NOTCURRENT; - - if (SUCCEEDED(hr)) - hr = StorageBaseImpl_SetTransactionSig(This->transactedParent, transactionSig+1); - } - else if (hr == E_NOTIMPL) - hr = S_OK; - - if (SUCCEEDED(hr)) - hr = StorageBaseImpl_ReadDirEntry(&This->scratch->base, This->scratch->base.storageDirEntry, &src_data); - - /* FIXME: If we're current, we should be able to copy only the changes in scratch. */ - if (SUCCEEDED(hr)) - hr = StorageBaseImpl_DupStorageTree(This->transactedParent, &new_storage_ref, &This->scratch->base, src_data.dirRootEntry); - - if (SUCCEEDED(hr)) - hr = StorageBaseImpl_Flush(This->transactedParent); - - if (SUCCEEDED(hr)) - hr = StorageBaseImpl_ReadDirEntry(This->transactedParent, This->transactedParent->storageDirEntry, &dst_data); - - if (SUCCEEDED(hr)) - { - prev_storage_ref = dst_data.dirRootEntry; - dst_data.dirRootEntry = new_storage_ref; - dst_data.clsid = src_data.clsid; - dst_data.ctime = src_data.ctime; - dst_data.mtime = src_data.mtime; - hr = StorageBaseImpl_WriteDirEntry(This->transactedParent, This->transactedParent->storageDirEntry, &dst_data); - } - - if (SUCCEEDED(hr)) - { - /* Try to flush after updating the root storage, but if the flush fails, keep - * going, on the theory that it'll either succeed later or the subsequent - * writes will fail. */ - StorageBaseImpl_Flush(This->transactedParent); - - hr = StorageBaseImpl_DeleteStorageTree(This->transactedParent, prev_storage_ref, TRUE); - } - - if (SUCCEEDED(hr)) - hr = StorageBaseImpl_Flush(This->transactedParent); - - StorageBaseImpl_UnlockTransaction(This->transactedParent, TRUE); - - if (SUCCEEDED(hr)) - hr = IStorage_Commit(&This->scratch->base.IStorage_iface, STGC_DEFAULT); - - if (SUCCEEDED(hr)) - { - This->lastTransactionSig = transactionSig+1; - } - } - TRACE("<-- %#lx\n", hr); - return hr; -} - -static HRESULT WINAPI TransactedSharedImpl_Revert( - IStorage* iface) -{ - TransactedSharedImpl* This = (TransactedSharedImpl*)impl_from_IStorage(iface); - - TRACE("(%p)\n", iface); - - /* Destroy the open objects. */ - StorageBaseImpl_DeleteAll(&This->base); - - return IStorage_Revert(&This->scratch->base.IStorage_iface); -} - -static const IStorageVtbl TransactedSharedImpl_Vtbl = -{ - StorageBaseImpl_QueryInterface, - StorageBaseImpl_AddRef, - StorageBaseImpl_Release, - StorageBaseImpl_CreateStream, - StorageBaseImpl_OpenStream, - StorageBaseImpl_CreateStorage, - StorageBaseImpl_OpenStorage, - StorageBaseImpl_CopyTo, - StorageBaseImpl_MoveElementTo, - TransactedSharedImpl_Commit, - TransactedSharedImpl_Revert, - StorageBaseImpl_EnumElements, - StorageBaseImpl_DestroyElement, - StorageBaseImpl_RenameElement, - StorageBaseImpl_SetElementTimes, - StorageBaseImpl_SetClass, - StorageBaseImpl_SetStateBits, - StorageBaseImpl_Stat -}; - -static const StorageBaseImplVtbl TransactedSharedImpl_BaseVtbl = -{ - TransactedSharedImpl_Destroy, - TransactedSharedImpl_Invalidate, - TransactedSharedImpl_Flush, - TransactedSharedImpl_GetFilename, - TransactedSharedImpl_CreateDirEntry, - TransactedSharedImpl_WriteDirEntry, - TransactedSharedImpl_ReadDirEntry, - TransactedSharedImpl_DestroyDirEntry, - TransactedSharedImpl_StreamReadAt, - TransactedSharedImpl_StreamWriteAt, - TransactedSharedImpl_StreamSetSize, - TransactedSharedImpl_StreamLink, - TransactedSharedImpl_GetTransactionSig, - TransactedSharedImpl_SetTransactionSig, - TransactedSharedImpl_LockTransaction, - TransactedSharedImpl_UnlockTransaction -}; - -static HRESULT TransactedSharedImpl_Construct(StorageBaseImpl *parentStorage, - TransactedSharedImpl** result) -{ - HRESULT hr; - - *result = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(TransactedSharedImpl)); - if (*result) - { - IStorage *scratch; - - (*result)->base.IStorage_iface.lpVtbl = &TransactedSharedImpl_Vtbl; - - /* This is OK because the property set storage functions use the IStorage functions. */ - (*result)->base.IPropertySetStorage_iface.lpVtbl = parentStorage->IPropertySetStorage_iface.lpVtbl; - (*result)->base.baseVtbl = &TransactedSharedImpl_BaseVtbl; - - list_init(&(*result)->base.strmHead); - - list_init(&(*result)->base.storageHead); - - (*result)->base.ref = 1; - - (*result)->base.openFlags = parentStorage->openFlags; - - hr = StorageBaseImpl_LockTransaction(parentStorage, FALSE); - - if (SUCCEEDED(hr)) - { - STGOPTIONS stgo; - - /* This cannot fail, except with E_NOTIMPL in which case we don't care */ - StorageBaseImpl_GetTransactionSig(parentStorage, &(*result)->lastTransactionSig, FALSE); - - stgo.usVersion = 1; - stgo.reserved = 0; - stgo.ulSectorSize = 4096; - stgo.pwcsTemplateFile = NULL; - - /* Create a new temporary storage to act as the scratch file. */ - hr = StgCreateStorageEx(NULL, STGM_READWRITE|STGM_SHARE_EXCLUSIVE|STGM_CREATE|STGM_DELETEONRELEASE|STGM_TRANSACTED, - STGFMT_DOCFILE, 0, &stgo, NULL, &IID_IStorage, (void**)&scratch); - (*result)->scratch = (TransactedSnapshotImpl*)impl_from_IStorage(scratch); - - if (SUCCEEDED(hr)) - { - hr = StorageBaseImpl_CopyStorageTree(&(*result)->scratch->base, (*result)->scratch->base.storageDirEntry, - parentStorage, parentStorage->storageDirEntry); - - if (SUCCEEDED(hr)) - { - hr = IStorage_Commit(scratch, STGC_DEFAULT); - - (*result)->base.storageDirEntry = (*result)->scratch->base.storageDirEntry; - (*result)->transactedParent = parentStorage; - } - - if (FAILED(hr)) - IStorage_Release(scratch); - } - - StorageBaseImpl_UnlockTransaction(parentStorage, FALSE); - } - - if (FAILED(hr)) HeapFree(GetProcessHeap(), 0, *result); - - return hr; - } - else - return E_OUTOFMEMORY; -} - -static HRESULT Storage_ConstructTransacted(StorageBaseImpl *parentStorage, - BOOL toplevel, StorageBaseImpl** result) -{ - static int fixme_flags=STGM_NOSCRATCH|STGM_NOSNAPSHOT; - - if (parentStorage->openFlags & fixme_flags) - { - fixme_flags &= ~parentStorage->openFlags; - FIXME("Unimplemented flags %lx\n", parentStorage->openFlags); - } - - if (toplevel && !(parentStorage->openFlags & STGM_NOSNAPSHOT) && - STGM_SHARE_MODE(parentStorage->openFlags) != STGM_SHARE_DENY_WRITE && - STGM_SHARE_MODE(parentStorage->openFlags) != STGM_SHARE_EXCLUSIVE) - { - /* Need to create a temp file for the snapshot */ - return TransactedSharedImpl_Construct(parentStorage, (TransactedSharedImpl**)result); - } - - return TransactedSnapshotImpl_Construct(parentStorage, - (TransactedSnapshotImpl**)result); -} - -static HRESULT Storage_Construct( - HANDLE hFile, - LPCOLESTR pwcsName, - ILockBytes* pLkbyt, - DWORD openFlags, - BOOL fileBased, - BOOL create, - ULONG sector_size, - StorageBaseImpl** result) -{ - StorageImpl *newStorage; - StorageBaseImpl *newTransactedStorage; - HRESULT hr; - - hr = StorageImpl_Construct(hFile, pwcsName, pLkbyt, openFlags, fileBased, create, sector_size, &newStorage); - if (FAILED(hr)) goto end; - - if (openFlags & STGM_TRANSACTED) - { - hr = Storage_ConstructTransacted(&newStorage->base, TRUE, &newTransactedStorage); - if (FAILED(hr)) - IStorage_Release(&newStorage->base.IStorage_iface); - else - *result = newTransactedStorage; - } - else - *result = &newStorage->base; - -end: - return hr; -} - - -/************************************************************************ - * StorageUtl helper functions - ***********************************************************************/ - -void StorageUtl_ReadWord(const BYTE* buffer, ULONG offset, WORD* value) -{ - WORD tmp; - - memcpy(&tmp, buffer+offset, sizeof(WORD)); - *value = lendian16toh(tmp); -} - -void StorageUtl_WriteWord(void *buffer, ULONG offset, WORD value) -{ - value = htole16(value); - memcpy((BYTE *)buffer + offset, &value, sizeof(WORD)); -} - -void StorageUtl_ReadDWord(const BYTE* buffer, ULONG offset, DWORD* value) -{ - DWORD tmp; - - memcpy(&tmp, buffer+offset, sizeof(DWORD)); - *value = lendian32toh(tmp); -} - -void StorageUtl_WriteDWord(void *buffer, ULONG offset, DWORD value) -{ - value = htole32(value); - memcpy((BYTE *)buffer + offset, &value, sizeof(DWORD)); -} - -void StorageUtl_ReadULargeInteger(const BYTE* buffer, ULONG offset, - ULARGE_INTEGER* value) -{ -#ifdef WORDS_BIGENDIAN - ULARGE_INTEGER tmp; - - memcpy(&tmp, buffer + offset, sizeof(ULARGE_INTEGER)); - value->u.LowPart = htole32(tmp.HighPart); - value->u.HighPart = htole32(tmp.LowPart); -#else - memcpy(value, buffer + offset, sizeof(ULARGE_INTEGER)); -#endif -} - -void StorageUtl_WriteULargeInteger(void *buffer, ULONG offset, const ULARGE_INTEGER *value) -{ -#ifdef WORDS_BIGENDIAN - ULARGE_INTEGER tmp; - - tmp.LowPart = htole32(value->u.HighPart); - tmp.HighPart = htole32(value->u.LowPart); - memcpy((BYTE *)buffer + offset, &tmp, sizeof(ULARGE_INTEGER)); -#else - memcpy((BYTE *)buffer + offset, value, sizeof(ULARGE_INTEGER)); -#endif -} - -void StorageUtl_ReadGUID(const BYTE* buffer, ULONG offset, GUID* value) -{ - StorageUtl_ReadDWord(buffer, offset, (DWORD *)&value->Data1); - StorageUtl_ReadWord(buffer, offset+4, &(value->Data2)); - StorageUtl_ReadWord(buffer, offset+6, &(value->Data3)); - - memcpy(value->Data4, buffer+offset+8, sizeof(value->Data4)); -} - -void StorageUtl_WriteGUID(void *buffer, ULONG offset, const GUID* value) -{ - StorageUtl_WriteDWord(buffer, offset, value->Data1); - StorageUtl_WriteWord(buffer, offset+4, value->Data2); - StorageUtl_WriteWord(buffer, offset+6, value->Data3); - - memcpy((BYTE *)buffer + offset + 8, value->Data4, sizeof(value->Data4)); -} - -void StorageUtl_CopyDirEntryToSTATSTG( - StorageBaseImpl* storage, - STATSTG* destination, - const DirEntry* source, - int statFlags) -{ - /* - * The copy of the string occurs only when the flag is not set - */ - if (!(statFlags & STATFLAG_NONAME) && source->stgType == STGTY_ROOT) - { - /* Use the filename for the root storage. */ - destination->pwcsName = 0; - StorageBaseImpl_GetFilename(storage, &destination->pwcsName); - } - else if( ((statFlags & STATFLAG_NONAME) != 0) || - (source->name[0] == 0) ) - { - destination->pwcsName = 0; - } - else - { - destination->pwcsName = - CoTaskMemAlloc((lstrlenW(source->name)+1)*sizeof(WCHAR)); - - lstrcpyW(destination->pwcsName, source->name); - } - - switch (source->stgType) - { - case STGTY_STORAGE: - case STGTY_ROOT: - destination->type = STGTY_STORAGE; - break; - case STGTY_STREAM: - destination->type = STGTY_STREAM; - break; - default: - destination->type = STGTY_STREAM; - break; - } - - destination->cbSize = source->size; -/* - currentReturnStruct->mtime = {0}; TODO - currentReturnStruct->ctime = {0}; - currentReturnStruct->atime = {0}; -*/ - destination->grfMode = 0; - destination->grfLocksSupported = 0; - destination->clsid = source->clsid; - destination->grfStateBits = 0; - destination->reserved = 0; -} - - -/************************************************************************ - * BlockChainStream implementation - ***********************************************************************/ - -/****************************************************************************** - * BlockChainStream_GetHeadOfChain - * - * Returns the head of this stream chain. - * Some special chains don't have directory entries, their heads are kept in - * This->headOfStreamPlaceHolder. - * - */ -static ULONG BlockChainStream_GetHeadOfChain(BlockChainStream* This) -{ - DirEntry chainEntry; - HRESULT hr; - - if (This->headOfStreamPlaceHolder != 0) - return *(This->headOfStreamPlaceHolder); - - if (This->ownerDirEntry != DIRENTRY_NULL) - { - hr = StorageImpl_ReadDirEntry( - This->parentStorage, - This->ownerDirEntry, - &chainEntry); - - if (SUCCEEDED(hr) && chainEntry.startingBlock < BLOCK_FIRST_SPECIAL) - return chainEntry.startingBlock; - } - - return BLOCK_END_OF_CHAIN; -} - -/* Read and save the index of all blocks in this stream. */ -static HRESULT BlockChainStream_UpdateIndexCache(BlockChainStream* This) -{ - ULONG next_sector, next_offset; - HRESULT hr; - struct BlockChainRun *last_run; - - if (This->indexCacheLen == 0) - { - last_run = NULL; - next_offset = 0; - next_sector = BlockChainStream_GetHeadOfChain(This); - } - else - { - last_run = &This->indexCache[This->indexCacheLen-1]; - next_offset = last_run->lastOffset+1; - hr = StorageImpl_GetNextBlockInChain(This->parentStorage, - last_run->firstSector + last_run->lastOffset - last_run->firstOffset, - &next_sector); - if (FAILED(hr)) return hr; - } - - while (next_sector != BLOCK_END_OF_CHAIN) - { - if (!last_run || next_sector != last_run->firstSector + next_offset - last_run->firstOffset) - { - /* Add the current block to the cache. */ - if (This->indexCacheSize == 0) - { - This->indexCache = HeapAlloc(GetProcessHeap(), 0, sizeof(struct BlockChainRun)*16); - if (!This->indexCache) return E_OUTOFMEMORY; - This->indexCacheSize = 16; - } - else if (This->indexCacheSize == This->indexCacheLen) - { - struct BlockChainRun *new_cache; - ULONG new_size; - - new_size = This->indexCacheSize * 2; - new_cache = HeapAlloc(GetProcessHeap(), 0, sizeof(struct BlockChainRun)*new_size); - if (!new_cache) return E_OUTOFMEMORY; - memcpy(new_cache, This->indexCache, sizeof(struct BlockChainRun)*This->indexCacheLen); - - HeapFree(GetProcessHeap(), 0, This->indexCache); - This->indexCache = new_cache; - This->indexCacheSize = new_size; - } - - This->indexCacheLen++; - last_run = &This->indexCache[This->indexCacheLen-1]; - last_run->firstSector = next_sector; - last_run->firstOffset = next_offset; - } - - last_run->lastOffset = next_offset; - - /* Find the next block. */ - next_offset++; - hr = StorageImpl_GetNextBlockInChain(This->parentStorage, next_sector, &next_sector); - if (FAILED(hr)) return hr; - } - - if (This->indexCacheLen) - { - This->tailIndex = last_run->firstSector + last_run->lastOffset - last_run->firstOffset; - This->numBlocks = last_run->lastOffset+1; - } - else - { - This->tailIndex = BLOCK_END_OF_CHAIN; - This->numBlocks = 0; - } - - return S_OK; -} - -/* Locate the nth block in this stream. */ -static ULONG BlockChainStream_GetSectorOfOffset(BlockChainStream *This, ULONG offset) -{ - ULONG min_offset = 0, max_offset = This->numBlocks-1; - ULONG min_run = 0, max_run = This->indexCacheLen-1; - - if (offset >= This->numBlocks) - return BLOCK_END_OF_CHAIN; - - while (min_run < max_run) - { - ULONG run_to_check = min_run + (offset - min_offset) * (max_run - min_run) / (max_offset - min_offset); - if (offset < This->indexCache[run_to_check].firstOffset) - { - max_offset = This->indexCache[run_to_check].firstOffset-1; - max_run = run_to_check-1; - } - else if (offset > This->indexCache[run_to_check].lastOffset) - { - min_offset = This->indexCache[run_to_check].lastOffset+1; - min_run = run_to_check+1; - } - else - /* Block is in this run. */ - min_run = max_run = run_to_check; - } - - return This->indexCache[min_run].firstSector + offset - This->indexCache[min_run].firstOffset; -} - -static HRESULT BlockChainStream_GetBlockAtOffset(BlockChainStream *This, - ULONG index, BlockChainBlock **block, ULONG *sector, BOOL create) -{ - BlockChainBlock *result=NULL; - int i; - - for (i=0; i<2; i++) - if (This->cachedBlocks[i].index == index) - { - *sector = This->cachedBlocks[i].sector; - *block = &This->cachedBlocks[i]; - return S_OK; - } - - *sector = BlockChainStream_GetSectorOfOffset(This, index); - if (*sector == BLOCK_END_OF_CHAIN) - return STG_E_DOCFILECORRUPT; - - if (create) - { - if (This->cachedBlocks[0].index == 0xffffffff) - result = &This->cachedBlocks[0]; - else if (This->cachedBlocks[1].index == 0xffffffff) - result = &This->cachedBlocks[1]; - else - { - result = &This->cachedBlocks[This->blockToEvict++]; - if (This->blockToEvict == 2) - This->blockToEvict = 0; - } - - if (result->dirty) - { - if (!StorageImpl_WriteBigBlock(This->parentStorage, result->sector, result->data)) - return STG_E_WRITEFAULT; - result->dirty = FALSE; - } - - result->read = FALSE; - result->index = index; - result->sector = *sector; - } - - *block = result; - return S_OK; -} - -BlockChainStream* BlockChainStream_Construct( - StorageImpl* parentStorage, - ULONG* headOfStreamPlaceHolder, - DirRef dirEntry) -{ - BlockChainStream* newStream; - - newStream = HeapAlloc(GetProcessHeap(), 0, sizeof(BlockChainStream)); - if(!newStream) - return NULL; - - newStream->parentStorage = parentStorage; - newStream->headOfStreamPlaceHolder = headOfStreamPlaceHolder; - newStream->ownerDirEntry = dirEntry; - newStream->indexCache = NULL; - newStream->indexCacheLen = 0; - newStream->indexCacheSize = 0; - newStream->cachedBlocks[0].index = 0xffffffff; - newStream->cachedBlocks[0].dirty = FALSE; - newStream->cachedBlocks[1].index = 0xffffffff; - newStream->cachedBlocks[1].dirty = FALSE; - newStream->blockToEvict = 0; - - if (FAILED(BlockChainStream_UpdateIndexCache(newStream))) - { - HeapFree(GetProcessHeap(), 0, newStream->indexCache); - HeapFree(GetProcessHeap(), 0, newStream); - return NULL; - } - - return newStream; -} - -HRESULT BlockChainStream_Flush(BlockChainStream* This) -{ - int i; - if (!This) return S_OK; - for (i=0; i<2; i++) - { - if (This->cachedBlocks[i].dirty) - { - if (StorageImpl_WriteBigBlock(This->parentStorage, This->cachedBlocks[i].sector, This->cachedBlocks[i].data)) - This->cachedBlocks[i].dirty = FALSE; - else - return STG_E_WRITEFAULT; - } - } - return S_OK; -} - -void BlockChainStream_Destroy(BlockChainStream* This) -{ - if (This) - { - BlockChainStream_Flush(This); - HeapFree(GetProcessHeap(), 0, This->indexCache); - } - HeapFree(GetProcessHeap(), 0, This); -} - -/****************************************************************************** - * BlockChainStream_Shrink - * - * Shrinks this chain in the big block depot. - */ -static BOOL BlockChainStream_Shrink(BlockChainStream* This, - ULARGE_INTEGER newSize) -{ - ULONG blockIndex; - ULONG numBlocks; - int i; - - /* - * Figure out how many blocks are needed to contain the new size - */ - numBlocks = newSize.QuadPart / This->parentStorage->bigBlockSize; - - if ((newSize.QuadPart % This->parentStorage->bigBlockSize) != 0) - numBlocks++; - - if (numBlocks) - { - /* - * Go to the new end of chain - */ - blockIndex = BlockChainStream_GetSectorOfOffset(This, numBlocks-1); - - /* Mark the new end of chain */ - StorageImpl_SetNextBlockInChain( - This->parentStorage, - blockIndex, - BLOCK_END_OF_CHAIN); - - This->tailIndex = blockIndex; - } - else - { - if (This->headOfStreamPlaceHolder != 0) - { - *This->headOfStreamPlaceHolder = BLOCK_END_OF_CHAIN; - } - else - { - DirEntry chainEntry; - assert(This->ownerDirEntry != DIRENTRY_NULL); - - StorageImpl_ReadDirEntry( - This->parentStorage, - This->ownerDirEntry, - &chainEntry); - - chainEntry.startingBlock = BLOCK_END_OF_CHAIN; - - StorageImpl_WriteDirEntry( - This->parentStorage, - This->ownerDirEntry, - &chainEntry); - } - - This->tailIndex = BLOCK_END_OF_CHAIN; - } - - This->numBlocks = numBlocks; - - /* - * Mark the extra blocks as free - */ - while (This->indexCacheLen && This->indexCache[This->indexCacheLen-1].lastOffset >= numBlocks) - { - struct BlockChainRun *last_run = &This->indexCache[This->indexCacheLen-1]; - StorageImpl_FreeBigBlock(This->parentStorage, - last_run->firstSector + last_run->lastOffset - last_run->firstOffset); - if (last_run->lastOffset == last_run->firstOffset) - This->indexCacheLen--; - else - last_run->lastOffset--; - } - - /* - * Reset the last accessed block cache. - */ - for (i=0; i<2; i++) - { - if (This->cachedBlocks[i].index >= numBlocks) - { - This->cachedBlocks[i].index = 0xffffffff; - This->cachedBlocks[i].dirty = FALSE; - } - } - - return TRUE; -} - -/****************************************************************************** - * BlockChainStream_Enlarge - * - * Grows this chain in the big block depot. - */ -static BOOL BlockChainStream_Enlarge(BlockChainStream* This, - ULARGE_INTEGER newSize) -{ - ULONG blockIndex, currentBlock; - ULONG newNumBlocks; - ULONG oldNumBlocks = 0; - - blockIndex = BlockChainStream_GetHeadOfChain(This); - - /* - * Empty chain. Create the head. - */ - if (blockIndex == BLOCK_END_OF_CHAIN) - { - blockIndex = StorageImpl_GetNextFreeBigBlock(This->parentStorage, 1); - StorageImpl_SetNextBlockInChain(This->parentStorage, - blockIndex, - BLOCK_END_OF_CHAIN); - - if (This->headOfStreamPlaceHolder != 0) - { - *(This->headOfStreamPlaceHolder) = blockIndex; - } - else - { - DirEntry chainEntry; - assert(This->ownerDirEntry != DIRENTRY_NULL); - - StorageImpl_ReadDirEntry( - This->parentStorage, - This->ownerDirEntry, - &chainEntry); - - chainEntry.startingBlock = blockIndex; - - StorageImpl_WriteDirEntry( - This->parentStorage, - This->ownerDirEntry, - &chainEntry); - } - - This->tailIndex = blockIndex; - This->numBlocks = 1; - } - - /* - * Figure out how many blocks are needed to contain this stream - */ - newNumBlocks = newSize.QuadPart / This->parentStorage->bigBlockSize; - - if ((newSize.QuadPart % This->parentStorage->bigBlockSize) != 0) - newNumBlocks++; - - /* - * Go to the current end of chain - */ - if (This->tailIndex == BLOCK_END_OF_CHAIN) - { - currentBlock = blockIndex; - - while (blockIndex != BLOCK_END_OF_CHAIN) - { - This->numBlocks++; - currentBlock = blockIndex; - - if(FAILED(StorageImpl_GetNextBlockInChain(This->parentStorage, currentBlock, - &blockIndex))) - return FALSE; - } - - This->tailIndex = currentBlock; - } - - currentBlock = This->tailIndex; - oldNumBlocks = This->numBlocks; - - /* - * Add new blocks to the chain - */ - if (oldNumBlocks < newNumBlocks) - { - while (oldNumBlocks < newNumBlocks) - { - blockIndex = StorageImpl_GetNextFreeBigBlock(This->parentStorage, newNumBlocks - oldNumBlocks); - - StorageImpl_SetNextBlockInChain( - This->parentStorage, - currentBlock, - blockIndex); - - StorageImpl_SetNextBlockInChain( - This->parentStorage, - blockIndex, - BLOCK_END_OF_CHAIN); - - currentBlock = blockIndex; - oldNumBlocks++; - } - - This->tailIndex = blockIndex; - This->numBlocks = newNumBlocks; - } - - if (FAILED(BlockChainStream_UpdateIndexCache(This))) - return FALSE; - - return TRUE; -} - - -/****************************************************************************** - * BlockChainStream_GetSize - * - * Returns the size of this chain. - * Will return the block count if this chain doesn't have a directory entry. - */ -static ULARGE_INTEGER BlockChainStream_GetSize(BlockChainStream* This) -{ - DirEntry chainEntry; - - if(This->headOfStreamPlaceHolder == NULL) - { - /* - * This chain has a directory entry so use the size value from there. - */ - StorageImpl_ReadDirEntry( - This->parentStorage, - This->ownerDirEntry, - &chainEntry); - - return chainEntry.size; - } - else - { - /* - * this chain is a chain that does not have a directory entry, figure out the - * size by making the product number of used blocks times the - * size of them - */ - ULARGE_INTEGER result; - result.QuadPart = - (ULONGLONG)BlockChainStream_GetCount(This) * - This->parentStorage->bigBlockSize; - - return result; - } -} - -/****************************************************************************** - * BlockChainStream_SetSize - * - * Sets the size of this stream. The big block depot will be updated. - * The file will grow if we grow the chain. - * - * TODO: Free the actual blocks in the file when we shrink the chain. - * Currently, the blocks are still in the file. So the file size - * doesn't shrink even if we shrink streams. - */ -BOOL BlockChainStream_SetSize( - BlockChainStream* This, - ULARGE_INTEGER newSize) -{ - ULARGE_INTEGER size = BlockChainStream_GetSize(This); - - if (newSize.QuadPart == size.QuadPart) - return TRUE; - - if (newSize.QuadPart < size.QuadPart) - { - BlockChainStream_Shrink(This, newSize); - } - else - { - BlockChainStream_Enlarge(This, newSize); - } - - return TRUE; -} - -/****************************************************************************** - * BlockChainStream_ReadAt - * - * Reads a specified number of bytes from this chain at the specified offset. - * bytesRead may be NULL. - * Failure will be returned if the specified number of bytes has not been read. - */ -HRESULT BlockChainStream_ReadAt(BlockChainStream* This, - ULARGE_INTEGER offset, - ULONG size, - void* buffer, - ULONG* bytesRead) -{ - ULONG blockNoInSequence = offset.QuadPart / This->parentStorage->bigBlockSize; - ULONG offsetInBlock = offset.QuadPart % This->parentStorage->bigBlockSize; - ULONG bytesToReadInBuffer; - ULONG blockIndex; - BYTE* bufferWalker; - ULARGE_INTEGER stream_size; - HRESULT hr; - BlockChainBlock *cachedBlock; - - TRACE("%p, %li, %p, %lu, %p.\n",This, offset.LowPart, buffer, size, bytesRead); - - /* - * Find the first block in the stream that contains part of the buffer. - */ - blockIndex = BlockChainStream_GetSectorOfOffset(This, blockNoInSequence); - - *bytesRead = 0; - - stream_size = BlockChainStream_GetSize(This); - if (stream_size.QuadPart > offset.QuadPart) - size = min(stream_size.QuadPart - offset.QuadPart, size); - else - return S_OK; - - /* - * Start reading the buffer. - */ - bufferWalker = buffer; - - while (size > 0) - { - ULARGE_INTEGER ulOffset; - DWORD bytesReadAt; - - /* - * Calculate how many bytes we can copy from this big block. - */ - bytesToReadInBuffer = - min(This->parentStorage->bigBlockSize - offsetInBlock, size); - - hr = BlockChainStream_GetBlockAtOffset(This, blockNoInSequence, &cachedBlock, &blockIndex, size == bytesToReadInBuffer); - - if (FAILED(hr)) - return hr; - - if (!cachedBlock) - { - /* Not in cache, and we're going to read past the end of the block. */ - ulOffset.QuadPart = StorageImpl_GetBigBlockOffset(This->parentStorage, blockIndex) + - offsetInBlock; - - StorageImpl_ReadAt(This->parentStorage, - ulOffset, - bufferWalker, - bytesToReadInBuffer, - &bytesReadAt); - } - else - { - if (!cachedBlock->read) - { - ULONG read; - if (FAILED(StorageImpl_ReadBigBlock(This->parentStorage, cachedBlock->sector, cachedBlock->data, &read)) && !read) - return STG_E_READFAULT; - - cachedBlock->read = TRUE; - } - - memcpy(bufferWalker, cachedBlock->data+offsetInBlock, bytesToReadInBuffer); - bytesReadAt = bytesToReadInBuffer; - } - - blockNoInSequence++; - bufferWalker += bytesReadAt; - size -= bytesReadAt; - *bytesRead += bytesReadAt; - offsetInBlock = 0; /* There is no offset on the next block */ - - if (bytesToReadInBuffer != bytesReadAt) - break; - } - - return S_OK; -} - -/****************************************************************************** - * BlockChainStream_WriteAt - * - * Writes the specified number of bytes to this chain at the specified offset. - * Will fail if not all specified number of bytes have been written. - */ -HRESULT BlockChainStream_WriteAt(BlockChainStream* This, - ULARGE_INTEGER offset, - ULONG size, - const void* buffer, - ULONG* bytesWritten) -{ - ULONG blockNoInSequence = offset.QuadPart / This->parentStorage->bigBlockSize; - ULONG offsetInBlock = offset.QuadPart % This->parentStorage->bigBlockSize; - ULONG bytesToWrite; - ULONG blockIndex; - const BYTE* bufferWalker; - HRESULT hr; - BlockChainBlock *cachedBlock; - - *bytesWritten = 0; - bufferWalker = buffer; - - while (size > 0) - { - ULARGE_INTEGER ulOffset; - DWORD bytesWrittenAt; - - /* - * Calculate how many bytes we can copy to this big block. - */ - bytesToWrite = - min(This->parentStorage->bigBlockSize - offsetInBlock, size); - - hr = BlockChainStream_GetBlockAtOffset(This, blockNoInSequence, &cachedBlock, &blockIndex, size == bytesToWrite); - - /* BlockChainStream_SetSize should have already been called to ensure we have - * enough blocks in the chain to write into */ - if (FAILED(hr)) - { - ERR("not enough blocks in chain to write data\n"); - return hr; - } - - if (!cachedBlock) - { - /* Not in cache, and we're going to write past the end of the block. */ - ulOffset.QuadPart = StorageImpl_GetBigBlockOffset(This->parentStorage, blockIndex) + - offsetInBlock; - - StorageImpl_WriteAt(This->parentStorage, - ulOffset, - bufferWalker, - bytesToWrite, - &bytesWrittenAt); - } - else - { - if (!cachedBlock->read && bytesToWrite != This->parentStorage->bigBlockSize) - { - ULONG read; - if (FAILED(StorageImpl_ReadBigBlock(This->parentStorage, cachedBlock->sector, cachedBlock->data, &read)) && !read) - return STG_E_READFAULT; - } - - memcpy(cachedBlock->data+offsetInBlock, bufferWalker, bytesToWrite); - bytesWrittenAt = bytesToWrite; - cachedBlock->read = TRUE; - cachedBlock->dirty = TRUE; - } - - blockNoInSequence++; - bufferWalker += bytesWrittenAt; - size -= bytesWrittenAt; - *bytesWritten += bytesWrittenAt; - offsetInBlock = 0; /* There is no offset on the next block */ - - if (bytesWrittenAt != bytesToWrite) - break; - } - - return (size == 0) ? S_OK : STG_E_WRITEFAULT; -} - - -/************************************************************************ - * SmallBlockChainStream implementation - ***********************************************************************/ - -SmallBlockChainStream* SmallBlockChainStream_Construct( - StorageImpl* parentStorage, - ULONG* headOfStreamPlaceHolder, - DirRef dirEntry) -{ - SmallBlockChainStream* newStream; - - newStream = HeapAlloc(GetProcessHeap(), 0, sizeof(SmallBlockChainStream)); - - newStream->parentStorage = parentStorage; - newStream->headOfStreamPlaceHolder = headOfStreamPlaceHolder; - newStream->ownerDirEntry = dirEntry; - - return newStream; -} - -void SmallBlockChainStream_Destroy( - SmallBlockChainStream* This) -{ - HeapFree(GetProcessHeap(), 0, This); -} - -/****************************************************************************** - * SmallBlockChainStream_GetHeadOfChain - * - * Returns the head of this chain of small blocks. - */ -static ULONG SmallBlockChainStream_GetHeadOfChain( - SmallBlockChainStream* This) -{ - DirEntry chainEntry; - HRESULT hr; - - if (This->headOfStreamPlaceHolder != NULL) - return *(This->headOfStreamPlaceHolder); - - if (This->ownerDirEntry) - { - hr = StorageImpl_ReadDirEntry( - This->parentStorage, - This->ownerDirEntry, - &chainEntry); - - if (SUCCEEDED(hr) && chainEntry.startingBlock < BLOCK_FIRST_SPECIAL) - return chainEntry.startingBlock; - } - - return BLOCK_END_OF_CHAIN; -} - -/****************************************************************************** - * SmallBlockChainStream_GetNextBlockInChain - * - * Returns the index of the next small block in this chain. - * - * Return Values: - * - BLOCK_END_OF_CHAIN: end of this chain - * - BLOCK_UNUSED: small block 'blockIndex' is free - */ -static HRESULT SmallBlockChainStream_GetNextBlockInChain( - SmallBlockChainStream* This, - ULONG blockIndex, - ULONG* nextBlockInChain) -{ - ULARGE_INTEGER offsetOfBlockInDepot; - DWORD buffer; - ULONG bytesRead; - HRESULT res; - - *nextBlockInChain = BLOCK_END_OF_CHAIN; - - offsetOfBlockInDepot.QuadPart = (ULONGLONG)blockIndex * sizeof(ULONG); - - /* - * Read those bytes in the buffer from the small block file. - */ - res = BlockChainStream_ReadAt( - This->parentStorage->smallBlockDepotChain, - offsetOfBlockInDepot, - sizeof(DWORD), - &buffer, - &bytesRead); - - if (SUCCEEDED(res) && bytesRead != sizeof(DWORD)) - res = STG_E_READFAULT; - - if (SUCCEEDED(res)) - { - StorageUtl_ReadDWord((BYTE *)&buffer, 0, nextBlockInChain); - return S_OK; - } - - return res; -} - -/****************************************************************************** - * SmallBlockChainStream_SetNextBlockInChain - * - * Writes the index of the next block of the specified block in the small - * block depot. - * To set the end of chain use BLOCK_END_OF_CHAIN as nextBlock. - * To flag a block as free use BLOCK_UNUSED as nextBlock. - */ -static void SmallBlockChainStream_SetNextBlockInChain( - SmallBlockChainStream* This, - ULONG blockIndex, - ULONG nextBlock) -{ - ULARGE_INTEGER offsetOfBlockInDepot; - DWORD buffer; - ULONG bytesWritten; - - offsetOfBlockInDepot.QuadPart = (ULONGLONG)blockIndex * sizeof(ULONG); - - StorageUtl_WriteDWord(&buffer, 0, nextBlock); - - /* - * Read those bytes in the buffer from the small block file. - */ - BlockChainStream_WriteAt( - This->parentStorage->smallBlockDepotChain, - offsetOfBlockInDepot, - sizeof(DWORD), - &buffer, - &bytesWritten); -} - -/****************************************************************************** - * SmallBlockChainStream_FreeBlock - * - * Flag small block 'blockIndex' as free in the small block depot. - */ -static void SmallBlockChainStream_FreeBlock( - SmallBlockChainStream* This, - ULONG blockIndex) -{ - SmallBlockChainStream_SetNextBlockInChain(This, blockIndex, BLOCK_UNUSED); -} - -/****************************************************************************** - * SmallBlockChainStream_GetNextFreeBlock - * - * Returns the index of a free small block. The small block depot will be - * enlarged if necessary. The small block chain will also be enlarged if - * necessary. - */ -static ULONG SmallBlockChainStream_GetNextFreeBlock( - SmallBlockChainStream* This) -{ - ULARGE_INTEGER offsetOfBlockInDepot; - DWORD buffer; - ULONG bytesRead; - ULONG blockIndex = This->parentStorage->firstFreeSmallBlock; - ULONG nextBlockIndex = BLOCK_END_OF_CHAIN; - HRESULT res = S_OK; - ULONG smallBlocksPerBigBlock; - DirEntry rootEntry; - ULONG blocksRequired; - ULARGE_INTEGER old_size, size_required; - - offsetOfBlockInDepot.HighPart = 0; - - /* - * Scan the small block depot for a free block - */ - while (nextBlockIndex != BLOCK_UNUSED) - { - offsetOfBlockInDepot.QuadPart = (ULONGLONG)blockIndex * sizeof(ULONG); - - res = BlockChainStream_ReadAt( - This->parentStorage->smallBlockDepotChain, - offsetOfBlockInDepot, - sizeof(DWORD), - &buffer, - &bytesRead); - - /* - * If we run out of space for the small block depot, enlarge it - */ - if (SUCCEEDED(res) && bytesRead == sizeof(DWORD)) - { - StorageUtl_ReadDWord((BYTE *)&buffer, 0, &nextBlockIndex); - - if (nextBlockIndex != BLOCK_UNUSED) - blockIndex++; - } - else - { - ULONG count = - BlockChainStream_GetCount(This->parentStorage->smallBlockDepotChain); - - BYTE smallBlockDepot[MAX_BIG_BLOCK_SIZE]; - ULARGE_INTEGER newSize, offset; - ULONG bytesWritten; - - newSize.QuadPart = (ULONGLONG)(count + 1) * This->parentStorage->bigBlockSize; - BlockChainStream_Enlarge(This->parentStorage->smallBlockDepotChain, newSize); - - /* - * Initialize all the small blocks to free - */ - memset(smallBlockDepot, BLOCK_UNUSED, This->parentStorage->bigBlockSize); - offset.QuadPart = (ULONGLONG)count * This->parentStorage->bigBlockSize; - BlockChainStream_WriteAt(This->parentStorage->smallBlockDepotChain, - offset, This->parentStorage->bigBlockSize, smallBlockDepot, &bytesWritten); - - StorageImpl_SaveFileHeader(This->parentStorage); - } - } - - This->parentStorage->firstFreeSmallBlock = blockIndex+1; - - smallBlocksPerBigBlock = - This->parentStorage->bigBlockSize / This->parentStorage->smallBlockSize; - - /* - * Verify if we have to allocate big blocks to contain small blocks - */ - blocksRequired = (blockIndex / smallBlocksPerBigBlock) + 1; - - size_required.QuadPart = (ULONGLONG)blocksRequired * This->parentStorage->bigBlockSize; - - old_size = BlockChainStream_GetSize(This->parentStorage->smallBlockRootChain); - - if (size_required.QuadPart > old_size.QuadPart) - { - BlockChainStream_SetSize( - This->parentStorage->smallBlockRootChain, - size_required); - - StorageImpl_ReadDirEntry( - This->parentStorage, - This->parentStorage->base.storageDirEntry, - &rootEntry); - - rootEntry.size = size_required; - - StorageImpl_WriteDirEntry( - This->parentStorage, - This->parentStorage->base.storageDirEntry, - &rootEntry); - } - - return blockIndex; -} - -/****************************************************************************** - * SmallBlockChainStream_ReadAt - * - * Reads a specified number of bytes from this chain at the specified offset. - * bytesRead may be NULL. - * Failure will be returned if the specified number of bytes has not been read. - */ -HRESULT SmallBlockChainStream_ReadAt( - SmallBlockChainStream* This, - ULARGE_INTEGER offset, - ULONG size, - void* buffer, - ULONG* bytesRead) -{ - HRESULT rc = S_OK; - ULARGE_INTEGER offsetInBigBlockFile; - ULONG blockNoInSequence = - offset.LowPart / This->parentStorage->smallBlockSize; - - ULONG offsetInBlock = offset.LowPart % This->parentStorage->smallBlockSize; - ULONG bytesToReadInBuffer; - ULONG blockIndex; - ULONG bytesReadFromBigBlockFile; - BYTE* bufferWalker; - ULARGE_INTEGER stream_size; - - /* - * This should never happen on a small block file. - */ - assert(offset.HighPart==0); - - *bytesRead = 0; - - stream_size = SmallBlockChainStream_GetSize(This); - if (stream_size.QuadPart > offset.QuadPart) - size = min(stream_size.QuadPart - offset.QuadPart, size); - else - return S_OK; - - /* - * Find the first block in the stream that contains part of the buffer. - */ - blockIndex = SmallBlockChainStream_GetHeadOfChain(This); - - while ( (blockNoInSequence > 0) && (blockIndex != BLOCK_END_OF_CHAIN)) - { - rc = SmallBlockChainStream_GetNextBlockInChain(This, blockIndex, &blockIndex); - if(FAILED(rc)) - return rc; - blockNoInSequence--; - } - - /* - * Start reading the buffer. - */ - bufferWalker = buffer; - - while ( (size > 0) && (blockIndex != BLOCK_END_OF_CHAIN) ) - { - /* - * Calculate how many bytes we can copy from this small block. - */ - bytesToReadInBuffer = - min(This->parentStorage->smallBlockSize - offsetInBlock, size); - - /* - * Calculate the offset of the small block in the small block file. - */ - offsetInBigBlockFile.QuadPart = - (ULONGLONG)blockIndex * This->parentStorage->smallBlockSize; - - offsetInBigBlockFile.QuadPart += offsetInBlock; - - /* - * Read those bytes in the buffer from the small block file. - * The small block has already been identified so it shouldn't fail - * unless the file is corrupt. - */ - rc = BlockChainStream_ReadAt(This->parentStorage->smallBlockRootChain, - offsetInBigBlockFile, - bytesToReadInBuffer, - bufferWalker, - &bytesReadFromBigBlockFile); - - if (FAILED(rc)) - return rc; - - if (!bytesReadFromBigBlockFile) - return STG_E_DOCFILECORRUPT; - - /* - * Step to the next big block. - */ - rc = SmallBlockChainStream_GetNextBlockInChain(This, blockIndex, &blockIndex); - if(FAILED(rc)) - return STG_E_DOCFILECORRUPT; - - bufferWalker += bytesReadFromBigBlockFile; - size -= bytesReadFromBigBlockFile; - *bytesRead += bytesReadFromBigBlockFile; - offsetInBlock = (offsetInBlock + bytesReadFromBigBlockFile) % This->parentStorage->smallBlockSize; - } - - return S_OK; -} - -/****************************************************************************** - * SmallBlockChainStream_WriteAt - * - * Writes the specified number of bytes to this chain at the specified offset. - * Will fail if not all specified number of bytes have been written. - */ -HRESULT SmallBlockChainStream_WriteAt( - SmallBlockChainStream* This, - ULARGE_INTEGER offset, - ULONG size, - const void* buffer, - ULONG* bytesWritten) -{ - ULARGE_INTEGER offsetInBigBlockFile; - ULONG blockNoInSequence = - offset.LowPart / This->parentStorage->smallBlockSize; - - ULONG offsetInBlock = offset.LowPart % This->parentStorage->smallBlockSize; - ULONG bytesToWriteInBuffer; - ULONG blockIndex; - ULONG bytesWrittenToBigBlockFile; - const BYTE* bufferWalker; - HRESULT res; - - /* - * This should never happen on a small block file. - */ - assert(offset.HighPart==0); - - /* - * Find the first block in the stream that contains part of the buffer. - */ - blockIndex = SmallBlockChainStream_GetHeadOfChain(This); - - while ( (blockNoInSequence > 0) && (blockIndex != BLOCK_END_OF_CHAIN)) - { - if(FAILED(SmallBlockChainStream_GetNextBlockInChain(This, blockIndex, &blockIndex))) - return STG_E_DOCFILECORRUPT; - blockNoInSequence--; - } - - /* - * Start writing the buffer. - */ - *bytesWritten = 0; - bufferWalker = buffer; - while ( (size > 0) && (blockIndex != BLOCK_END_OF_CHAIN) ) - { - /* - * Calculate how many bytes we can copy to this small block. - */ - bytesToWriteInBuffer = - min(This->parentStorage->smallBlockSize - offsetInBlock, size); - - /* - * Calculate the offset of the small block in the small block file. - */ - offsetInBigBlockFile.QuadPart = - (ULONGLONG)blockIndex * This->parentStorage->smallBlockSize; - - offsetInBigBlockFile.QuadPart += offsetInBlock; - - /* - * Write those bytes in the buffer to the small block file. - */ - res = BlockChainStream_WriteAt( - This->parentStorage->smallBlockRootChain, - offsetInBigBlockFile, - bytesToWriteInBuffer, - bufferWalker, - &bytesWrittenToBigBlockFile); - if (FAILED(res)) - return res; - - /* - * Step to the next big block. - */ - res = SmallBlockChainStream_GetNextBlockInChain(This, blockIndex, &blockIndex); - if (FAILED(res)) - return res; - bufferWalker += bytesWrittenToBigBlockFile; - size -= bytesWrittenToBigBlockFile; - *bytesWritten += bytesWrittenToBigBlockFile; - offsetInBlock = (offsetInBlock + bytesWrittenToBigBlockFile) % This->parentStorage->smallBlockSize; - } - - return (size == 0) ? S_OK : STG_E_WRITEFAULT; -} - -/****************************************************************************** - * SmallBlockChainStream_Shrink - * - * Shrinks this chain in the small block depot. - */ -static BOOL SmallBlockChainStream_Shrink( - SmallBlockChainStream* This, - ULARGE_INTEGER newSize) -{ - ULONG blockIndex, extraBlock; - ULONG numBlocks; - ULONG count = 0; - - numBlocks = newSize.LowPart / This->parentStorage->smallBlockSize; - - if ((newSize.LowPart % This->parentStorage->smallBlockSize) != 0) - numBlocks++; - - blockIndex = SmallBlockChainStream_GetHeadOfChain(This); - - /* - * Go to the new end of chain - */ - while (count < numBlocks) - { - if(FAILED(SmallBlockChainStream_GetNextBlockInChain(This, blockIndex, - &blockIndex))) - return FALSE; - count++; - } - - /* - * If the count is 0, we have a special case, the head of the chain was - * just freed. - */ - if (count == 0) - { - DirEntry chainEntry; - - StorageImpl_ReadDirEntry(This->parentStorage, - This->ownerDirEntry, - &chainEntry); - - chainEntry.startingBlock = BLOCK_END_OF_CHAIN; - - StorageImpl_WriteDirEntry(This->parentStorage, - This->ownerDirEntry, - &chainEntry); - - /* - * We start freeing the chain at the head block. - */ - extraBlock = blockIndex; - } - else - { - /* Get the next block before marking the new end */ - if(FAILED(SmallBlockChainStream_GetNextBlockInChain(This, blockIndex, - &extraBlock))) - return FALSE; - - /* Mark the new end of chain */ - SmallBlockChainStream_SetNextBlockInChain( - This, - blockIndex, - BLOCK_END_OF_CHAIN); - } - - /* - * Mark the extra blocks as free - */ - while (extraBlock != BLOCK_END_OF_CHAIN) - { - if(FAILED(SmallBlockChainStream_GetNextBlockInChain(This, extraBlock, - &blockIndex))) - return FALSE; - SmallBlockChainStream_FreeBlock(This, extraBlock); - This->parentStorage->firstFreeSmallBlock = min(This->parentStorage->firstFreeSmallBlock, extraBlock); - extraBlock = blockIndex; - } - - return TRUE; -} - -/****************************************************************************** - * SmallBlockChainStream_Enlarge - * - * Grows this chain in the small block depot. - */ -static BOOL SmallBlockChainStream_Enlarge( - SmallBlockChainStream* This, - ULARGE_INTEGER newSize) -{ - ULONG blockIndex, currentBlock; - ULONG newNumBlocks; - ULONG oldNumBlocks = 0; - - blockIndex = SmallBlockChainStream_GetHeadOfChain(This); - - /* - * Empty chain. Create the head. - */ - if (blockIndex == BLOCK_END_OF_CHAIN) - { - blockIndex = SmallBlockChainStream_GetNextFreeBlock(This); - SmallBlockChainStream_SetNextBlockInChain( - This, - blockIndex, - BLOCK_END_OF_CHAIN); - - if (This->headOfStreamPlaceHolder != NULL) - { - *(This->headOfStreamPlaceHolder) = blockIndex; - } - else - { - DirEntry chainEntry; - - StorageImpl_ReadDirEntry(This->parentStorage, This->ownerDirEntry, - &chainEntry); - - chainEntry.startingBlock = blockIndex; - - StorageImpl_WriteDirEntry(This->parentStorage, This->ownerDirEntry, - &chainEntry); - } - } - - currentBlock = blockIndex; - - /* - * Figure out how many blocks are needed to contain this stream - */ - newNumBlocks = newSize.LowPart / This->parentStorage->smallBlockSize; - - if ((newSize.LowPart % This->parentStorage->smallBlockSize) != 0) - newNumBlocks++; - - /* - * Go to the current end of chain - */ - while (blockIndex != BLOCK_END_OF_CHAIN) - { - oldNumBlocks++; - currentBlock = blockIndex; - if(FAILED(SmallBlockChainStream_GetNextBlockInChain(This, currentBlock, &blockIndex))) - return FALSE; - } - - /* - * Add new blocks to the chain - */ - while (oldNumBlocks < newNumBlocks) - { - blockIndex = SmallBlockChainStream_GetNextFreeBlock(This); - SmallBlockChainStream_SetNextBlockInChain(This, currentBlock, blockIndex); - - SmallBlockChainStream_SetNextBlockInChain( - This, - blockIndex, - BLOCK_END_OF_CHAIN); - - currentBlock = blockIndex; - oldNumBlocks++; - } - - return TRUE; -} - -/****************************************************************************** - * SmallBlockChainStream_SetSize - * - * Sets the size of this stream. - * The file will grow if we grow the chain. - * - * TODO: Free the actual blocks in the file when we shrink the chain. - * Currently, the blocks are still in the file. So the file size - * doesn't shrink even if we shrink streams. - */ -BOOL SmallBlockChainStream_SetSize( - SmallBlockChainStream* This, - ULARGE_INTEGER newSize) -{ - ULARGE_INTEGER size = SmallBlockChainStream_GetSize(This); - - if (newSize.LowPart == size.LowPart) - return TRUE; - - if (newSize.LowPart < size.LowPart) - { - SmallBlockChainStream_Shrink(This, newSize); - } - else - { - SmallBlockChainStream_Enlarge(This, newSize); - } - - return TRUE; -} - -/****************************************************************************** - * SmallBlockChainStream_GetCount - * - * Returns the number of small blocks that comprises this chain. - * This is not the size of the stream as the last block may not be full! - * - */ -static ULONG SmallBlockChainStream_GetCount(SmallBlockChainStream* This) -{ - ULONG blockIndex; - ULONG count = 0; - - blockIndex = SmallBlockChainStream_GetHeadOfChain(This); - - while(blockIndex != BLOCK_END_OF_CHAIN) - { - count++; - - if(FAILED(SmallBlockChainStream_GetNextBlockInChain(This, - blockIndex, &blockIndex))) - return 0; - } - - return count; -} - -/****************************************************************************** - * SmallBlockChainStream_GetSize - * - * Returns the size of this chain. - */ -static ULARGE_INTEGER SmallBlockChainStream_GetSize(SmallBlockChainStream* This) -{ - DirEntry chainEntry; - - if(This->headOfStreamPlaceHolder != NULL) - { - ULARGE_INTEGER result; - result.HighPart = 0; - - result.LowPart = SmallBlockChainStream_GetCount(This) * - This->parentStorage->smallBlockSize; - - return result; - } - - StorageImpl_ReadDirEntry( - This->parentStorage, - This->ownerDirEntry, - &chainEntry); - - return chainEntry.size; -} - - -/************************************************************************ - * Miscellaneous storage functions - ***********************************************************************/ - -static HRESULT create_storagefile( - LPCOLESTR pwcsName, - DWORD grfMode, - DWORD grfAttrs, - STGOPTIONS* pStgOptions, - REFIID riid, - void** ppstgOpen) -{ - StorageBaseImpl* newStorage = 0; - HANDLE hFile = INVALID_HANDLE_VALUE; - HRESULT hr = STG_E_INVALIDFLAG; - DWORD shareMode; - DWORD accessMode; - DWORD creationMode; - DWORD fileAttributes; - WCHAR tempFileName[MAX_PATH]; - - if (ppstgOpen == 0) - return STG_E_INVALIDPOINTER; - - if (pStgOptions->ulSectorSize != MIN_BIG_BLOCK_SIZE && pStgOptions->ulSectorSize != MAX_BIG_BLOCK_SIZE) - return STG_E_INVALIDPARAMETER; - - /* if no share mode given then DENY_NONE is the default */ - if (STGM_SHARE_MODE(grfMode) == 0) - grfMode |= STGM_SHARE_DENY_NONE; - - if ( FAILED( validateSTGM(grfMode) )) - goto end; - - /* StgCreateDocFile seems to refuse readonly access, despite MSDN */ - switch(STGM_ACCESS_MODE(grfMode)) - { - case STGM_WRITE: - case STGM_READWRITE: - break; - default: - goto end; - } - - /* in direct mode, can only use SHARE_EXCLUSIVE */ - if (!(grfMode & STGM_TRANSACTED) && (STGM_SHARE_MODE(grfMode) != STGM_SHARE_EXCLUSIVE)) - goto end; - - /* but in transacted mode, any share mode is valid */ - - /* - * Generate a unique name. - */ - if (pwcsName == 0) - { - WCHAR tempPath[MAX_PATH]; - - memset(tempPath, 0, sizeof(tempPath)); - memset(tempFileName, 0, sizeof(tempFileName)); - - if ((GetTempPathW(MAX_PATH, tempPath)) == 0 ) - tempPath[0] = '.'; - - if (GetTempFileNameW(tempPath, L"STO", 0, tempFileName) != 0) - pwcsName = tempFileName; - else - { - hr = STG_E_INSUFFICIENTMEMORY; - goto end; - } - - creationMode = TRUNCATE_EXISTING; - } - else - { - creationMode = GetCreationModeFromSTGM(grfMode); - } - - /* - * Interpret the STGM value grfMode - */ - shareMode = GetShareModeFromSTGM(grfMode); - accessMode = GetAccessModeFromSTGM(grfMode); - - if (grfMode & STGM_DELETEONRELEASE) - fileAttributes = FILE_FLAG_RANDOM_ACCESS | FILE_FLAG_DELETE_ON_CLOSE; - else - fileAttributes = FILE_ATTRIBUTE_NORMAL | FILE_FLAG_RANDOM_ACCESS; - - *ppstgOpen = 0; - - hFile = CreateFileW(pwcsName, - accessMode, - shareMode, - NULL, - creationMode, - fileAttributes, - 0); - - if (hFile == INVALID_HANDLE_VALUE) - { - if(GetLastError() == ERROR_FILE_EXISTS) - hr = STG_E_FILEALREADYEXISTS; - else - hr = E_FAIL; - goto end; - } - - /* - * Allocate and initialize the new IStorage object. - */ - hr = Storage_Construct( - hFile, - pwcsName, - NULL, - grfMode, - TRUE, - TRUE, - pStgOptions->ulSectorSize, - &newStorage); - - if (FAILED(hr)) - { - goto end; - } - - hr = IStorage_QueryInterface(&newStorage->IStorage_iface, riid, ppstgOpen); - IStorage_Release(&newStorage->IStorage_iface); - -end: - TRACE("<-- %p r = %#lx\n", *ppstgOpen, hr); - - return hr; -} - -/****************************************************************************** - * StgCreateDocfile [OLE32.@] - * Creates a new compound file storage object - * - * PARAMS - * pwcsName [ I] Unicode string with filename (can be relative or NULL) - * grfMode [ I] Access mode for opening the new storage object (see STGM_ constants) - * reserved [ ?] unused?, usually 0 - * ppstgOpen [IO] A pointer to IStorage pointer to the new object - * - * RETURNS - * S_OK if the file was successfully created - * some STG_E_ value if error - * NOTES - * if pwcsName is NULL, create file with new unique name - * the function can returns - * STG_S_CONVERTED if the specified file was successfully converted to storage format - * (unrealized now) - */ -HRESULT WINAPI StgCreateDocfile( - LPCOLESTR pwcsName, - DWORD grfMode, - DWORD reserved, - IStorage **ppstgOpen) -{ - STGOPTIONS stgoptions = {1, 0, 512}; - - TRACE("%s, %#lx, %ld, %p.\n", debugstr_w(pwcsName), grfMode, reserved, ppstgOpen); - - if (ppstgOpen == 0) - return STG_E_INVALIDPOINTER; - if (reserved != 0) - return STG_E_INVALIDPARAMETER; - - return create_storagefile(pwcsName, grfMode, 0, &stgoptions, &IID_IStorage, (void**)ppstgOpen); -} - -/****************************************************************************** - * StgCreateStorageEx [OLE32.@] - */ -HRESULT WINAPI StgCreateStorageEx(const WCHAR* pwcsName, DWORD grfMode, DWORD stgfmt, DWORD grfAttrs, STGOPTIONS* pStgOptions, void* reserved, REFIID riid, void** ppObjectOpen) -{ - TRACE("%s, %#lx, %#lx, %#lx, %p, %p, %p, %p.\n", debugstr_w(pwcsName), - grfMode, stgfmt, grfAttrs, pStgOptions, reserved, riid, ppObjectOpen); - - if (stgfmt != STGFMT_FILE && grfAttrs != 0) - { - ERR("grfAttrs must be 0 if stgfmt != STGFMT_FILE\n"); - return STG_E_INVALIDPARAMETER; - } - - if (stgfmt == STGFMT_FILE && grfAttrs != 0 && grfAttrs != FILE_FLAG_NO_BUFFERING) - { - ERR("grfAttrs must be 0 or FILE_FLAG_NO_BUFFERING if stgfmt == STGFMT_FILE\n"); - return STG_E_INVALIDPARAMETER; - } - - if (stgfmt == STGFMT_FILE) - { - ERR("Cannot use STGFMT_FILE - this is NTFS only\n"); - return STG_E_INVALIDPARAMETER; - } - - if (stgfmt == STGFMT_STORAGE || stgfmt == STGFMT_DOCFILE) - { - STGOPTIONS defaultOptions = {1, 0, 512}; - - if (!pStgOptions) pStgOptions = &defaultOptions; - return create_storagefile(pwcsName, grfMode, grfAttrs, pStgOptions, riid, ppObjectOpen); - } - - - ERR("Invalid stgfmt argument\n"); - return STG_E_INVALIDPARAMETER; -} - -/****************************************************************************** - * StgOpenStorageEx [OLE32.@] - */ -HRESULT WINAPI StgOpenStorageEx(const WCHAR* pwcsName, DWORD grfMode, DWORD stgfmt, DWORD grfAttrs, STGOPTIONS* pStgOptions, void* reserved, REFIID riid, void** ppObjectOpen) -{ - TRACE("%s, %#lx, %#lx, %#lx, %p, %p, %p, %p.\n", debugstr_w(pwcsName), - grfMode, stgfmt, grfAttrs, pStgOptions, reserved, riid, ppObjectOpen); - - if (stgfmt != STGFMT_DOCFILE && grfAttrs != 0) - { - ERR("grfAttrs must be 0 if stgfmt != STGFMT_DOCFILE\n"); - return STG_E_INVALIDPARAMETER; - } - - switch (stgfmt) - { - case STGFMT_FILE: - ERR("Cannot use STGFMT_FILE - this is NTFS only\n"); - return STG_E_INVALIDPARAMETER; - - case STGFMT_STORAGE: - break; - - case STGFMT_DOCFILE: - if (grfAttrs && grfAttrs != FILE_FLAG_NO_BUFFERING) - { - ERR("grfAttrs must be 0 or FILE_FLAG_NO_BUFFERING if stgfmt == STGFMT_DOCFILE\n"); - return STG_E_INVALIDPARAMETER; - } - FIXME("Stub: calling StgOpenStorage, but ignoring pStgOptions and grfAttrs\n"); - break; - - case STGFMT_ANY: - WARN("STGFMT_ANY assuming storage\n"); - break; - - default: - return STG_E_INVALIDPARAMETER; - } - - return StgOpenStorage(pwcsName, NULL, grfMode, NULL, 0, (IStorage **)ppObjectOpen); -} - - -/****************************************************************************** - * StgOpenStorage [OLE32.@] - */ -HRESULT WINAPI StgOpenStorage( - const OLECHAR *pwcsName, - IStorage *pstgPriority, - DWORD grfMode, - SNB snbExclude, - DWORD reserved, - IStorage **ppstgOpen) -{ - StorageBaseImpl* newStorage = 0; - HRESULT hr = S_OK; - HANDLE hFile = 0; - DWORD shareMode; - DWORD accessMode; - LPWSTR temp_name = NULL; - - TRACE("%s, %p, %#lx, %p, %ld, %p.\n", debugstr_w(pwcsName), pstgPriority, grfMode, - snbExclude, reserved, ppstgOpen); - - if (pstgPriority) - { - /* FIXME: Copy ILockBytes instead? But currently for STGM_PRIORITY it'll be read-only. */ - hr = StorageBaseImpl_GetFilename((StorageBaseImpl*)pstgPriority, &temp_name); - if (FAILED(hr)) goto end; - pwcsName = temp_name; - TRACE("using filename %s\n", debugstr_w(temp_name)); - } - - if (pwcsName == 0) - { - hr = STG_E_INVALIDNAME; - goto end; - } - - if (ppstgOpen == 0) - { - hr = STG_E_INVALIDPOINTER; - goto end; - } - - if (reserved) - { - hr = STG_E_INVALIDPARAMETER; - goto end; - } - - if (grfMode & STGM_PRIORITY) - { - if (grfMode & (STGM_TRANSACTED|STGM_SIMPLE|STGM_NOSCRATCH|STGM_NOSNAPSHOT)) - return STG_E_INVALIDFLAG; - if (grfMode & STGM_DELETEONRELEASE) - return STG_E_INVALIDFUNCTION; - if(STGM_ACCESS_MODE(grfMode) != STGM_READ) - return STG_E_INVALIDFLAG; - grfMode &= ~0xf0; /* remove the existing sharing mode */ - grfMode |= STGM_SHARE_DENY_NONE; - } - - /* - * Validate the sharing mode - */ - if (grfMode & STGM_DIRECT_SWMR) - { - if ((STGM_SHARE_MODE(grfMode) != STGM_SHARE_DENY_WRITE) && - (STGM_SHARE_MODE(grfMode) != STGM_SHARE_DENY_NONE)) - { - hr = STG_E_INVALIDFLAG; - goto end; - } - } - else if (!(grfMode & (STGM_TRANSACTED|STGM_PRIORITY))) - switch(STGM_SHARE_MODE(grfMode)) - { - case STGM_SHARE_EXCLUSIVE: - case STGM_SHARE_DENY_WRITE: - break; - default: - hr = STG_E_INVALIDFLAG; - goto end; - } - - if ( FAILED( validateSTGM(grfMode) ) || - (grfMode&STGM_CREATE)) - { - hr = STG_E_INVALIDFLAG; - goto end; - } - - /* shared reading requires transacted or single writer mode */ - if( STGM_SHARE_MODE(grfMode) == STGM_SHARE_DENY_WRITE && - STGM_ACCESS_MODE(grfMode) == STGM_READWRITE && - !(grfMode & STGM_TRANSACTED) && !(grfMode & STGM_DIRECT_SWMR)) - { - hr = STG_E_INVALIDFLAG; - goto end; - } - - /* - * Interpret the STGM value grfMode - */ - shareMode = GetShareModeFromSTGM(grfMode); - accessMode = GetAccessModeFromSTGM(grfMode); - - *ppstgOpen = 0; - - hFile = CreateFileW( pwcsName, - accessMode, - shareMode, - NULL, - OPEN_EXISTING, - FILE_ATTRIBUTE_NORMAL | FILE_FLAG_RANDOM_ACCESS, - 0); - - if (hFile==INVALID_HANDLE_VALUE) - { - DWORD last_error = GetLastError(); - - hr = E_FAIL; - - switch (last_error) - { - case ERROR_FILE_NOT_FOUND: - hr = STG_E_FILENOTFOUND; - break; - - case ERROR_PATH_NOT_FOUND: - hr = STG_E_PATHNOTFOUND; - break; - - case ERROR_ACCESS_DENIED: - case ERROR_WRITE_PROTECT: - hr = STG_E_ACCESSDENIED; - break; - - case ERROR_SHARING_VIOLATION: - hr = STG_E_SHAREVIOLATION; - break; - - default: - hr = E_FAIL; - } - - goto end; - } - - /* - * Refuse to open the file if it's too small to be a structured storage file - * FIXME: verify the file when reading instead of here - */ - if (GetFileSize(hFile, NULL) < HEADER_SIZE) - { - CloseHandle(hFile); - hr = STG_E_FILEALREADYEXISTS; - goto end; - } - - /* - * Allocate and initialize the new IStorage object. - */ - hr = Storage_Construct( - hFile, - pwcsName, - NULL, - grfMode, - TRUE, - FALSE, - 512, - &newStorage); - - if (FAILED(hr)) - { - /* - * According to the docs if the file is not a storage, return STG_E_FILEALREADYEXISTS - */ - if(hr == STG_E_INVALIDHEADER) - hr = STG_E_FILEALREADYEXISTS; - goto end; - } - - *ppstgOpen = &newStorage->IStorage_iface; - -end: - CoTaskMemFree(temp_name); - if (pstgPriority) IStorage_Release(pstgPriority); - TRACE("<-- %#lx, IStorage %p\n", hr, ppstgOpen ? *ppstgOpen : NULL); - return hr; -} - -/****************************************************************************** - * StgCreateDocfileOnILockBytes [OLE32.@] - */ -HRESULT WINAPI StgCreateDocfileOnILockBytes( - ILockBytes *plkbyt, - DWORD grfMode, - DWORD reserved, - IStorage** ppstgOpen) -{ - StorageBaseImpl* newStorage = 0; - HRESULT hr = S_OK; - - if ((ppstgOpen == 0) || (plkbyt == 0)) - return STG_E_INVALIDPOINTER; - - /* - * Allocate and initialize the new IStorage object. - */ - hr = Storage_Construct( - 0, - 0, - plkbyt, - grfMode, - FALSE, - TRUE, - 512, - &newStorage); - - if (FAILED(hr)) - { - return hr; - } - - *ppstgOpen = &newStorage->IStorage_iface; - - return hr; -} - -/****************************************************************************** - * StgOpenStorageOnILockBytes [OLE32.@] - */ -HRESULT WINAPI StgOpenStorageOnILockBytes( - ILockBytes *plkbyt, - IStorage *pstgPriority, - DWORD grfMode, - SNB snbExclude, - DWORD reserved, - IStorage **ppstgOpen) -{ - StorageBaseImpl* newStorage = 0; - HRESULT hr = S_OK; - - if ((plkbyt == 0) || (ppstgOpen == 0)) - return STG_E_INVALIDPOINTER; - - if ( FAILED( validateSTGM(grfMode) )) - return STG_E_INVALIDFLAG; - - *ppstgOpen = 0; - - /* - * Allocate and initialize the new IStorage object. - */ - hr = Storage_Construct( - 0, - 0, - plkbyt, - grfMode, - FALSE, - FALSE, - 512, - &newStorage); - - if (FAILED(hr)) - { - return hr; - } - - *ppstgOpen = &newStorage->IStorage_iface; - - return hr; -} - -/****************************************************************************** - * StgSetTimes [ole32.@] - * StgSetTimes [OLE32.@] - * - * - */ -HRESULT WINAPI StgSetTimes(OLECHAR const *str, FILETIME const *pctime, - FILETIME const *patime, FILETIME const *pmtime) -{ - IStorage *stg = NULL; - HRESULT r; - - TRACE("%s %p %p %p\n", debugstr_w(str), pctime, patime, pmtime); - - r = StgOpenStorage(str, NULL, STGM_READWRITE | STGM_SHARE_DENY_WRITE, - 0, 0, &stg); - if( SUCCEEDED(r) ) - { - r = IStorage_SetElementTimes(stg, NULL, pctime, patime, pmtime); - IStorage_Release(stg); - } - - return r; -} /*********************************************************************** * OleLoadFromStream (OLE32.@) -- GitLab https://gitlab.winehq.org/wine/wine/-/merge_requests/3106
On Thu Dec 7 17:26:29 2023 +0000, Fabian Maurer wrote:
changed this line in [version 8 of the diff](/wine/wine/-/merge_requests/3106/diffs?diff_id=88741&start_sha=55937addffa8eb0b1af85876a1652b442505c128#19143aafea07d5b6edd7c55ba7954055e16e830c_36_34) alright, done
-- https://gitlab.winehq.org/wine/wine/-/merge_requests/3106#note_55384
participants (2)
-
Fabian Maurer -
Fabian Maurer (＠DarkShadow44)