Alexandre Julliard : kernel32: Partial implementation of GetModuleHandleExA /W.

[Alexandre Julliard]

Module: wine
Branch: refs/heads/master
Commit: ab2349daf0d57b8f2f68cfd2ca871b3d3d75a4f0
URL:    http://source.winehq.org/git/?p=wine.git;a=commit;h=ab2349daf0d57b8f2f68cfd2...

Author: Alexandre Julliard 
Date:   Sat May 27 10:57:17 2006 +0200

kernel32: Partial implementation of GetModuleHandleExA/W.

---

dlls/kernel/kernel32.spec |    4 +--
 dlls/kernel/module.c      |   72 +++++++++++++++++++++++++++++++++++----------
 include/winbase.h         |    7 ++++
 3 files changed, 65 insertions(+), 18 deletions(-)

diff --git a/dlls/kernel/kernel32.spec b/dlls/kernel/kernel32.spec
index 5bb79af..4de17a9 100644
--- a/dlls/kernel/kernel32.spec
+++ b/dlls/kernel/kernel32.spec
@@ -540,8 +540,8 @@ # @ stub GetFirmwareEnvironmentVariableW
 @ stdcall GetModuleFileNameA(long ptr long)
 @ stdcall GetModuleFileNameW(long ptr long)
 @ stdcall GetModuleHandleA(str)
-# @ stub GetModuleHandleExA
-# @ stub GetModuleHandleExW
+@ stdcall GetModuleHandleExA(long ptr ptr)
+@ stdcall GetModuleHandleExW(long ptr ptr)
 @ stdcall GetModuleHandleW(wstr)
 @ stdcall GetNamedPipeHandleStateA(long ptr ptr ptr ptr str long)
 @ stdcall GetNamedPipeHandleStateW(long ptr ptr ptr ptr wstr long)
diff --git a/dlls/kernel/module.c b/dlls/kernel/module.c
index a909bbf..291e817 100644
--- a/dlls/kernel/module.c
+++ b/dlls/kernel/module.c
@@ -480,6 +480,57 @@ BOOL WINAPI GetBinaryTypeA( LPCSTR lpApp
     return FALSE;
 }

+/***********************************************************************
+ *              GetModuleHandleExA         (KERNEL32.@)
+ */
+BOOL WINAPI GetModuleHandleExA( DWORD flags, LPCSTR name, HMODULE *module )
+{
+    WCHAR *nameW;
+
+    if (!name || (flags & GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS))
+        return GetModuleHandleExW( flags, (LPCWSTR)name, module );
+
+    if (!(nameW = FILE_name_AtoW( name, FALSE ))) return FALSE;
+    return GetModuleHandleExW( flags, nameW, module );
+}
+
+/***********************************************************************
+ *              GetModuleHandleExW         (KERNEL32.@)
+ */
+BOOL WINAPI GetModuleHandleExW( DWORD flags, LPCWSTR name, HMODULE *module )
+{
+    NTSTATUS status = STATUS_SUCCESS;
+    HMODULE ret;
+
+    if (!name)
+    {
+        ret = NtCurrentTeb()->Peb->ImageBaseAddress;
+    }
+    else if (flags & GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS)
+    {
+        void *dummy;
+        if (!(ret = RtlPcToFileHeader( (void *)name, &dummy ))) status = STATUS_DLL_NOT_FOUND;
+    }
+    else
+    {
+        UNICODE_STRING wstr;
+        RtlInitUnicodeString( &wstr, name );
+        status = LdrGetDllHandle( 0, 0, &wstr, &ret );
+    }
+
+    if (status != STATUS_SUCCESS)
+    {
+        SetLastError( RtlNtStatusToDosError( status ) );
+        return FALSE;
+    }
+
+    if ((flags & GET_MODULE_HANDLE_EX_FLAG_PIN) ||
+        !(flags & GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT))
+        FIXME( "should update refcount, flags %lx\n", flags );
+
+    if (module) *module = ret;
+    return TRUE;
+}

/***********************************************************************
  *              GetModuleHandleA         (KERNEL32.@)
@@ -496,11 +547,10 @@ BOOL WINAPI GetBinaryTypeA( LPCSTR lpApp
  */
 HMODULE WINAPI GetModuleHandleA(LPCSTR module)
 {
-    WCHAR *moduleW;
+    HMODULE ret;

-    if (!module) return NtCurrentTeb()->Peb->ImageBaseAddress;
-    if (!(moduleW = FILE_name_AtoW( module, FALSE ))) return 0;
-    return GetModuleHandleW( moduleW );
+    if (!GetModuleHandleExA( GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT, module, &ret )) ret = 0;
+    return ret;
 }

/***********************************************************************
@@ -510,19 +560,9 @@ HMODULE WINAPI GetModuleHandleA(LPCSTR m
  */
 HMODULE WINAPI GetModuleHandleW(LPCWSTR module)
 {
-    NTSTATUS            nts;
-    HMODULE             ret;
-    UNICODE_STRING      wstr;
-
-    if (!module) return NtCurrentTeb()->Peb->ImageBaseAddress;
+    HMODULE ret;

-    RtlInitUnicodeString( &wstr, module );
-    nts = LdrGetDllHandle( 0, 0, &wstr, &ret);
-    if (nts != STATUS_SUCCESS)
-    {
-        SetLastError( RtlNtStatusToDosError( nts ) );
-        ret = 0;
-    }
+    if (!GetModuleHandleExW( GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT, module, &ret )) ret = 0;
     return ret;
 }

diff --git a/include/winbase.h b/include/winbase.h
index 39db999..549e36e 100644
--- a/include/winbase.h
+++ b/include/winbase.h
@@ -750,6 +750,10 @@ #define	DONT_RESOLVE_DLL_REFERENCES	0x00
 #define	LOAD_LIBRARY_AS_DATAFILE	0x00000002
 #define	LOAD_WITH_ALTERED_SEARCH_PATH	0x00000008

+#define GET_MODULE_HANDLE_EX_FLAG_PIN                 1
+#define GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT  2
+#define GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS        4
+
 typedef PLDT_ENTRY LPLDT_ENTRY;

typedef enum _GET_FILEEX_INFO_LEVELS {
@@ -1568,6 +1572,9 @@ #define     GetModuleFileName WINELIB_NA
 HMODULE     WINAPI GetModuleHandleA(LPCSTR);
 HMODULE     WINAPI GetModuleHandleW(LPCWSTR);
 #define     GetModuleHandle WINELIB_NAME_AW(GetModuleHandle)
+BOOL        WINAPI GetModuleHandleExA(DWORD,LPCSTR,HMODULE*);
+BOOL        WINAPI GetModuleHandleExW(DWORD,LPCWSTR,HMODULE*);
+#define     GetModuleHandleEx WINELIB_NAME_AW(GetModuleHandleEx)
 BOOL        WINAPI GetNamedPipeHandleStateA(HANDLE,LPDWORD,LPDWORD,LPDWORD,LPDWORD,LPSTR,DWORD);
 BOOL        WINAPI GetNamedPipeHandleStateW(HANDLE,LPDWORD,LPDWORD,LPDWORD,LPDWORD,LPWSTR,DWORD);
 #define     GetNamedPipeHandleState WINELIB_NAME_AW(GetNamedPipeHandleState)