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ole32: Convert the *_{Read,Write}At structured storage functions to

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return HRESULTs instead of BOOLs so that errors can be properly
propagated from lower levels.
This commit is contained in:
Robert Shearman 2006-09-11 11:13:47 +01:00 committed by Alexandre Julliard
parent bfc1bdc3bb
commit 79f7318a11
3 changed files with 67 additions and 62 deletions
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23
dlls/ole32/stg_stream.c
View file

@ -302,15 +302,11 @@ static HRESULT WINAPI StgStreamImpl_Read(
}
else if (This->bigBlockChain!=0)
{
BOOL success = BlockChainStream_ReadAt(This->bigBlockChain,
This->currentPosition,
bytesToReadFromBuffer,
pv,
pcbRead);
if (success)
res = S_OK;
else
res = STG_E_READFAULT;
res = BlockChainStream_ReadAt(This->bigBlockChain,
This->currentPosition,
bytesToReadFromBuffer,
pv,
pcbRead);
}
else
{
@ -363,6 +359,7 @@ static HRESULT WINAPI StgStreamImpl_Write(
ULARGE_INTEGER newSize;
ULONG bytesWritten = 0;
HRESULT res;
TRACE("(%p, %p, %ld, %p)\n",
iface, pv, cb, pcbWritten);
@ -427,7 +424,7 @@ static HRESULT WINAPI StgStreamImpl_Write(
*/
if (This->smallBlockChain!=0)
{
SmallBlockChainStream_WriteAt(This->smallBlockChain,
res = SmallBlockChainStream_WriteAt(This->smallBlockChain,
This->currentPosition,
cb,
pv,
@ -436,13 +433,15 @@ static HRESULT WINAPI StgStreamImpl_Write(
}
else if (This->bigBlockChain!=0)
{
BlockChainStream_WriteAt(This->bigBlockChain,
res = BlockChainStream_WriteAt(This->bigBlockChain,
This->currentPosition,
cb,
pv,
pcbWritten);
}
else
/* this should never happen because the IStream_SetSize call above will
* make sure a big or small block chain is created */
assert(FALSE);
/*
@ -451,7 +450,7 @@ static HRESULT WINAPI StgStreamImpl_Write(
This->currentPosition.u.LowPart += *pcbWritten;
TRACE("<-- S_OK, written %lu\n", *pcbWritten);
return S_OK;
return res;
}
/***

100
dlls/ole32/storage32.c
View file

@ -3303,20 +3303,20 @@ BOOL StorageImpl_ReadProperty(
{
BYTE currentProperty[PROPSET_BLOCK_SIZE];
ULARGE_INTEGER offsetInPropSet;
BOOL readSuccessful;
HRESULT readRes;
ULONG bytesRead;
offsetInPropSet.u.HighPart = 0;
offsetInPropSet.u.LowPart = index * PROPSET_BLOCK_SIZE;
readSuccessful = BlockChainStream_ReadAt(
readRes = BlockChainStream_ReadAt(
This->rootBlockChain,
offsetInPropSet,
PROPSET_BLOCK_SIZE,
currentProperty,
&bytesRead);
if (readSuccessful)
if (SUCCEEDED(readRes))
{
/* replace the name of root entry (often "Root Entry") by the file name */
WCHAR *propName = (index == This->base.rootPropertySetIndex) ?
@ -3389,7 +3389,7 @@ BOOL StorageImpl_ReadProperty(
buffer->size.u.HighPart = 0;
}
return readSuccessful;
return SUCCEEDED(readRes) ? TRUE : FALSE;
}
/*********************************************************************
@ -3402,7 +3402,7 @@ BOOL StorageImpl_WriteProperty(
{
BYTE currentProperty[PROPSET_BLOCK_SIZE];
ULARGE_INTEGER offsetInPropSet;
BOOL writeSuccessful;
HRESULT writeRes;
ULONG bytesWritten;
offsetInPropSet.u.HighPart = 0;
@ -3472,12 +3472,12 @@ BOOL StorageImpl_WriteProperty(
OFFSET_PS_SIZE,
buffer->size.u.LowPart);
writeSuccessful = BlockChainStream_WriteAt(This->rootBlockChain,
offsetInPropSet,
PROPSET_BLOCK_SIZE,
currentProperty,
&bytesWritten);
return writeSuccessful;
writeRes = BlockChainStream_WriteAt(This->rootBlockChain,
offsetInPropSet,
PROPSET_BLOCK_SIZE,
currentProperty,
&bytesWritten);
return SUCCEEDED(writeRes) ? TRUE : FALSE;
}
static BOOL StorageImpl_ReadBigBlock(
@ -3557,8 +3557,8 @@ BlockChainStream* Storage32Impl_SmallBlocksToBigBlocks(
ULARGE_INTEGER size, offset;
ULONG cbRead, cbWritten, cbTotalRead, cbTotalWritten;
ULONG propertyIndex;
BOOL successWrite;
HRESULT successRead;
HRESULT resWrite;
HRESULT resRead;
StgProperty chainProperty;
BYTE *buffer;
BlockChainStream *bbTempChain = NULL;
@ -3591,25 +3591,25 @@ BlockChainStream* Storage32Impl_SmallBlocksToBigBlocks(
buffer = HeapAlloc(GetProcessHeap(),0,DEF_SMALL_BLOCK_SIZE);
do
{
successRead = SmallBlockChainStream_ReadAt(*ppsbChain,
offset,
DEF_SMALL_BLOCK_SIZE,
buffer,
&cbRead);
if (FAILED(successRead))
resRead = SmallBlockChainStream_ReadAt(*ppsbChain,
offset,
DEF_SMALL_BLOCK_SIZE,
buffer,
&cbRead);
if (FAILED(resRead))
break;
if (cbRead > 0)
{
cbTotalRead += cbRead;
successWrite = BlockChainStream_WriteAt(bbTempChain,
resWrite = BlockChainStream_WriteAt(bbTempChain,
offset,
cbRead,
buffer,
&cbWritten);
if (!successWrite)
if (FAILED(resWrite))
break;
cbTotalWritten += cbWritten;
@ -4516,7 +4516,7 @@ static ULONG BlockChainStream_GetCount(BlockChainStream* This)
* bytesRead may be NULL.
* Failure will be returned if the specified number of bytes has not been read.
*/
BOOL BlockChainStream_ReadAt(BlockChainStream* This,
HRESULT BlockChainStream_ReadAt(BlockChainStream* This,
ULARGE_INTEGER offset,
ULONG size,
void* buffer,
@ -4551,12 +4551,12 @@ BOOL BlockChainStream_ReadAt(BlockChainStream* This,
while ( (blockNoInSequence > 0) && (blockIndex != BLOCK_END_OF_CHAIN))
{
if(FAILED(StorageImpl_GetNextBlockInChain(This->parentStorage, blockIndex, &blockIndex)))
return FALSE;
return STG_E_DOCFILECORRUPT;
blockNoInSequence--;
}
if ((blockNoInSequence > 0) && (blockIndex == BLOCK_END_OF_CHAIN))
return FALSE; /* We failed to find the starting block */
return STG_E_DOCFILECORRUPT; /* We failed to find the starting block */
This->lastBlockNoInSequenceIndex = blockIndex;
@ -4580,7 +4580,7 @@ BOOL BlockChainStream_ReadAt(BlockChainStream* This,
bigBlockBuffer =
StorageImpl_GetROBigBlock(This->parentStorage, blockIndex);
if (!bigBlockBuffer)
return FALSE;
return STG_E_READFAULT;
memcpy(bufferWalker, bigBlockBuffer + offsetInBlock, bytesToReadInBuffer);
@ -4590,7 +4590,7 @@ BOOL BlockChainStream_ReadAt(BlockChainStream* This,
* Step to the next big block.
*/
if(FAILED(StorageImpl_GetNextBlockInChain(This->parentStorage, blockIndex, &blockIndex)))
return FALSE;
return STG_E_DOCFILECORRUPT;
bufferWalker += bytesToReadInBuffer;
size -= bytesToReadInBuffer;
@ -4599,7 +4599,7 @@ BOOL BlockChainStream_ReadAt(BlockChainStream* This,
}
return (size == 0);
return (size == 0) ? S_OK : STG_E_READFAULT;
}
/******************************************************************************
@ -4609,7 +4609,7 @@ BOOL BlockChainStream_ReadAt(BlockChainStream* This,
* bytesWritten may be NULL.
* Will fail if not all specified number of bytes have been written.
*/
BOOL BlockChainStream_WriteAt(BlockChainStream* This,
HRESULT BlockChainStream_WriteAt(BlockChainStream* This,
ULARGE_INTEGER offset,
ULONG size,
const void* buffer,
@ -4645,7 +4645,7 @@ BOOL BlockChainStream_WriteAt(BlockChainStream* This,
{
if(FAILED(StorageImpl_GetNextBlockInChain(This->parentStorage, blockIndex,
&blockIndex)))
return FALSE;
return STG_E_DOCFILECORRUPT;
blockNoInSequence--;
}
@ -4680,14 +4680,14 @@ BOOL BlockChainStream_WriteAt(BlockChainStream* This,
*/
if(FAILED(StorageImpl_GetNextBlockInChain(This->parentStorage, blockIndex,
&blockIndex)))
return FALSE;
return STG_E_DOCFILECORRUPT;
bufferWalker += bytesToWrite;
size -= bytesToWrite;
*bytesWritten += bytesToWrite;
offsetInBlock = 0; /* There is no offset on the next block */
}
return (size == 0);
return (size == 0) ? S_OK : STG_E_WRITEFAULT;
}
/******************************************************************************
@ -5010,7 +5010,7 @@ static HRESULT SmallBlockChainStream_GetNextBlockInChain(
ULARGE_INTEGER offsetOfBlockInDepot;
DWORD buffer;
ULONG bytesRead;
BOOL success;
HRESULT res;
*nextBlockInChain = BLOCK_END_OF_CHAIN;
@ -5020,20 +5020,20 @@ static HRESULT SmallBlockChainStream_GetNextBlockInChain(
/*
* Read those bytes in the buffer from the small block file.
*/
success = BlockChainStream_ReadAt(
res = BlockChainStream_ReadAt(
This->parentStorage->smallBlockDepotChain,
offsetOfBlockInDepot,
sizeof(DWORD),
&buffer,
&bytesRead);
if (success)
if (SUCCEEDED(res))
{
StorageUtl_ReadDWord((BYTE *)&buffer, 0, nextBlockInChain);
return S_OK;
}
return STG_E_READFAULT;
return res;
}
/******************************************************************************
@ -5096,7 +5096,7 @@ static ULONG SmallBlockChainStream_GetNextFreeBlock(
ULONG bytesRead;
ULONG blockIndex = 0;
ULONG nextBlockIndex = BLOCK_END_OF_CHAIN;
BOOL success = TRUE;
HRESULT res = S_OK;
ULONG smallBlocksPerBigBlock;
offsetOfBlockInDepot.u.HighPart = 0;
@ -5108,7 +5108,7 @@ static ULONG SmallBlockChainStream_GetNextFreeBlock(
{
offsetOfBlockInDepot.u.LowPart = blockIndex * sizeof(ULONG);
success = BlockChainStream_ReadAt(
res = BlockChainStream_ReadAt(
This->parentStorage->smallBlockDepotChain,
offsetOfBlockInDepot,
sizeof(DWORD),
@ -5118,7 +5118,7 @@ static ULONG SmallBlockChainStream_GetNextFreeBlock(
/*
* If we run out of space for the small block depot, enlarge it
*/
if (success)
if (SUCCEEDED(res))
{
StorageUtl_ReadDWord((BYTE *)&buffer, 0, &nextBlockIndex);
@ -5310,12 +5310,14 @@ HRESULT SmallBlockChainStream_ReadAt(
* The small block has already been identified so it shouldn't fail
* unless the file is corrupt.
*/
if (!BlockChainStream_ReadAt(This->parentStorage->smallBlockRootChain,
rc = BlockChainStream_ReadAt(This->parentStorage->smallBlockRootChain,
offsetInBigBlockFile,
bytesToReadInBuffer,
bufferWalker,
&bytesReadFromBigBlockFile))
return STG_E_DOCFILECORRUPT;
&bytesReadFromBigBlockFile);
if (FAILED(rc))
return rc;
assert(bytesReadFromBigBlockFile == bytesToReadInBuffer);
@ -5324,7 +5326,7 @@ HRESULT SmallBlockChainStream_ReadAt(
*/
rc = SmallBlockChainStream_GetNextBlockInChain(This, blockIndex, &blockIndex);
if(FAILED(rc))
return rc;
return STG_E_DOCFILECORRUPT;
bufferWalker += bytesToReadInBuffer;
size -= bytesToReadInBuffer;
@ -5332,7 +5334,7 @@ HRESULT SmallBlockChainStream_ReadAt(
offsetInBlock = 0; /* There is no offset on the next block */
}
return rc;
return (size == 0) ? S_OK : STG_E_READFAULT;
}
/******************************************************************************
@ -5342,7 +5344,7 @@ HRESULT SmallBlockChainStream_ReadAt(
* bytesWritten may be NULL.
* Will fail if not all specified number of bytes have been written.
*/
BOOL SmallBlockChainStream_WriteAt(
HRESULT SmallBlockChainStream_WriteAt(
SmallBlockChainStream* This,
ULARGE_INTEGER offset,
ULONG size,
@ -5358,6 +5360,7 @@ BOOL SmallBlockChainStream_WriteAt(
ULONG blockIndex;
ULONG bytesWrittenFromBigBlockFile;
const BYTE* bufferWalker;
HRESULT res;
/*
* This should never happen on a small block file.
@ -5372,7 +5375,7 @@ BOOL SmallBlockChainStream_WriteAt(
while ( (blockNoInSequence > 0) && (blockIndex != BLOCK_END_OF_CHAIN))
{
if(FAILED(SmallBlockChainStream_GetNextBlockInChain(This, blockIndex, &blockIndex)))
return FALSE;
return STG_E_DOCFILECORRUPT;
blockNoInSequence--;
}
@ -5404,11 +5407,14 @@ BOOL SmallBlockChainStream_WriteAt(
/*
* Write those bytes in the buffer to the small block file.
*/
BlockChainStream_WriteAt(This->parentStorage->smallBlockRootChain,
res = BlockChainStream_WriteAt(
This->parentStorage->smallBlockRootChain,
offsetInBigBlockFile,
bytesToWriteInBuffer,
bufferWalker,
&bytesWrittenFromBigBlockFile);
if (FAILED(res))
return res;
assert(bytesWrittenFromBigBlockFile == bytesToWriteInBuffer);
@ -5424,7 +5430,7 @@ BOOL SmallBlockChainStream_WriteAt(
offsetInBlock = 0; /* There is no offset on the next block */
}
return (size == 0);
return (size == 0) ? S_OK : STG_E_WRITEFAULT;
}
/******************************************************************************

6
dlls/ole32/storage32.h
View file

@ -455,14 +455,14 @@ BlockChainStream* BlockChainStream_Construct(
void BlockChainStream_Destroy(
BlockChainStream* This);
BOOL BlockChainStream_ReadAt(
HRESULT BlockChainStream_ReadAt(
BlockChainStream* This,
ULARGE_INTEGER offset,
ULONG size,
void* buffer,
ULONG* bytesRead);
BOOL BlockChainStream_WriteAt(
HRESULT BlockChainStream_WriteAt(
BlockChainStream* This,
ULARGE_INTEGER offset,
ULONG size,
@ -502,7 +502,7 @@ HRESULT SmallBlockChainStream_ReadAt(
void* buffer,
ULONG* bytesRead);
BOOL SmallBlockChainStream_WriteAt(
HRESULT SmallBlockChainStream_WriteAt(
SmallBlockChainStream* This,
ULARGE_INTEGER offset,
ULONG size,