Rob Shearman : ole32: The stream returned by StgStreamImpl_Clone should have one reference, so call AddRef before returning.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 3bd31cfd1620cbc826c840e857e212fbf4c215a7
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=3bd31cfd1620cbc826c840e857...

Author: Rob Shearman 
Date:   Mon Feb 26 12:57:19 2007 +0000

ole32: The stream returned by StgStreamImpl_Clone should have one reference, so call AddRef before returning.

Move the call to StorageBaseImpl_AddStream to StgStreamImpl_Construct to 
fix StgStreamImpl_Clone, which forgets to call it.
Add tests for OLE structured storage tests for IStream::Clone.

---

dlls/ole32/stg_stream.c      |    5 +++++
 dlls/ole32/storage32.c       |   15 +--------------
 dlls/ole32/storage32.h       |    1 +
 dlls/ole32/tests/storage32.c |    6 ++++++
 4 files changed, 13 insertions(+), 14 deletions(-)

diff --git a/dlls/ole32/stg_stream.c b/dlls/ole32/stg_stream.c
index 63bdaad..6f2ec9a 100644
--- a/dlls/ole32/stg_stream.c
+++ b/dlls/ole32/stg_stream.c
@@ -880,6 +880,8 @@ static HRESULT WINAPI StgStreamImpl_Clone(
     return STG_E_INSUFFICIENTMEMORY; /* Currently the only reason for new_stream=0 */

*ppstm = (IStream*) new_stream;
+  IStream_AddRef(*ppstm);
+
   seek_pos.QuadPart = This->currentPosition.QuadPart;

hres=StgStreamImpl_Seek (*ppstm, seek_pos, STREAM_SEEK_SET, NULL);
@@ -974,6 +976,9 @@ StgStreamImpl* StgStreamImpl_Construct(
      * this stream are large or small.
      */
     StgStreamImpl_OpenBlockChain(newStream);
+
+    /* add us to the storage's list of active streams */
+    StorageBaseImpl_AddStream(parentStorage, newStream);
   }

return newStream;
diff --git a/dlls/ole32/storage32.c b/dlls/ole32/storage32.c
index c575ce5..dc2db11 100644
--- a/dlls/ole32/storage32.c
+++ b/dlls/ole32/storage32.c
@@ -93,8 +93,6 @@ static void StorageImpl_SetNextBlockInChain(StorageImpl* This, ULONG blockIndex,
 static HRESULT StorageImpl_LoadFileHeader(StorageImpl* This);
 static void StorageImpl_SaveFileHeader(StorageImpl* This);

-static void StorageBaseImpl_AddStream(StorageBaseImpl * stg, StgStreamImpl * strm);
-
 static void Storage32Impl_AddBlockDepot(StorageImpl* This, ULONG blockIndex);
 static ULONG Storage32Impl_AddExtBlockDepot(StorageImpl* This);
 static ULONG Storage32Impl_GetNextExtendedBlock(StorageImpl* This, ULONG blockIndex);
@@ -468,12 +466,6 @@ static HRESULT WINAPI StorageBaseImpl_OpenStream(
        */
       IStream_AddRef(*ppstm);

-      /*
-       * add us to the storage's list of active streams
-       */
-
-      StorageBaseImpl_AddStream(This,newStream);
-
       res = S_OK;
       goto end;
     }
@@ -1063,11 +1055,6 @@ static HRESULT WINAPI StorageBaseImpl_CreateStream(
      * the reference.
      */
     IStream_AddRef(*ppstm);
-
-    /* add us to the storage's list of active streams
-     */
-    StorageBaseImpl_AddStream(This,newStream);
-
   }
   else
   {
@@ -1895,7 +1882,7 @@ static HRESULT WINAPI StorageImpl_Stat( IStorage* iface,
  * Internal stream list handlers
  */

-static void StorageBaseImpl_AddStream(StorageBaseImpl * stg, StgStreamImpl * strm)
+void StorageBaseImpl_AddStream(StorageBaseImpl * stg, StgStreamImpl * strm)
 {
   TRACE("Stream added (stg=%p strm=%p)\n", stg, strm);
   list_add_tail(&stg->strmHead,&strm->StrmListEntry);
diff --git a/dlls/ole32/storage32.h b/dlls/ole32/storage32.h
index 5f2aea8..569cb36 100644
--- a/dlls/ole32/storage32.h
+++ b/dlls/ole32/storage32.h
@@ -257,6 +257,7 @@ struct StorageBaseImpl
  * StorageBaseImpl stream list handlers
  */

+void StorageBaseImpl_AddStream(StorageBaseImpl * stg, StgStreamImpl * strm);
 void StorageBaseImpl_RemoveStream(StorageBaseImpl * stg, StgStreamImpl * strm);

/****************************************************************************
diff --git a/dlls/ole32/tests/storage32.c b/dlls/ole32/tests/storage32.c
index 9a90ad3..710aa45 100644
--- a/dlls/ole32/tests/storage32.c
+++ b/dlls/ole32/tests/storage32.c
@@ -232,6 +232,7 @@ static void test_storage_stream(void)
     IStorage *stg = NULL;
     HRESULT r;
     IStream *stm = NULL;
+    IStream *stm2 = NULL;
     ULONG count = 0;
     LARGE_INTEGER pos;
     ULARGE_INTEGER p;
@@ -281,6 +282,9 @@ static void test_storage_stream(void)
     r = IStorage_CreateStream(stg, stmname, STGM_SHARE_EXCLUSIVE | STGM_READWRITE, 0, 0, &stm );
     ok(r==S_OK, "IStorage->CreateStream failed\n");

+    r = IStream_Clone(stm, &stm2);
+    ok(r==S_OK, "failed to clone stream\n");
+
     r = IStream_Write(stm, NULL, 0, NULL );
     ok(r==STG_E_INVALIDPOINTER, "IStream->Write wrong error\n");
     r = IStream_Write(stm, "Hello\n", 0, NULL );
@@ -317,6 +321,8 @@ static void test_storage_stream(void)
     ok(count == 0, "read bytes from empty stream\n");

/* wrap up */
+    r = IStream_Release(stm2);
+    ok(r == 0, "wrong ref count\n");
     r = IStream_Release(stm);
     ok(r == 0, "wrong ref count\n");
     r = IStorage_Release(stg);