Nikolay Sivov : ole32: Store SMWR storage instance role separately.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 5132f60298dfaffa44a31cbea6d579c779705067
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=5132f60298dfaffa44a31cbea6d579c779705067

Author: Nikolay Sivov <nsivov at codeweavers.com>
Date:   Fri Apr 19 12:37:01 2013 +0400

ole32: Store SMWR storage instance role separately.

---

 dlls/ole32/storage32.c |   12 +++++++++---
 dlls/ole32/storage32.h |    7 +++++++
 2 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/dlls/ole32/storage32.c b/dlls/ole32/storage32.c
index aa82b66..db47423 100644
--- a/dlls/ole32/storage32.c
+++ b/dlls/ole32/storage32.c
@@ -385,9 +385,8 @@ static HRESULT WINAPI StorageBaseImpl_QueryInterface(
   {
     *ppvObject = &This->IPropertySetStorage_iface;
   }
-  /* locking interface is report for writer only */
-  else if (IsEqualGUID(&IID_IDirectWriterLock, riid) &&
-    (This->openFlags == (STGM_DIRECT_SWMR|STGM_READWRITE|STGM_SHARE_DENY_WRITE)))
+  /* locking interface is reported for writer only */
+  else if (IsEqualGUID(&IID_IDirectWriterLock, riid) && This->lockingrole == SWMR_Writer)
   {
     *ppvObject = &This->IDirectWriterLock_iface;
   }
@@ -2785,6 +2784,13 @@ static HRESULT StorageImpl_Construct(
   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 = 0;
 
   /*
diff --git a/dlls/ole32/storage32.h b/dlls/ole32/storage32.h
index b037847..8cb330f 100644
--- a/dlls/ole32/storage32.h
+++ b/dlls/ole32/storage32.h
@@ -163,6 +163,12 @@ HRESULT FileLockBytesImpl_Construct(HANDLE hFile, DWORD openFlags, LPCWSTR pwcsN
 HRESULT STORAGE_CreateOleStream(IStorage*, DWORD) DECLSPEC_HIDDEN;
 HRESULT OLECONVERT_CreateCompObjStream(LPSTORAGE pStorage, LPCSTR strOleTypeName) DECLSPEC_HIDDEN;
 
+enum swmr_mode
+{
+  SWMR_None,
+  SWMR_Writer,
+  SWMR_Reader
+};
 
 /****************************************************************************
  * StorageBaseImpl definitions.
@@ -223,6 +229,7 @@ struct StorageBaseImpl
    * the transacted snapshot or cache.
    */
   StorageBaseImpl *transactedChild;
+  enum swmr_mode lockingrole;
 };
 
 /* virtual methods for StorageBaseImpl objects */