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// StreamUtils.cpp↩
↩
#include "StdAfx.h"↩
↩
#include "StreamUtils.h"↩
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static const UInt32 kBlockSize = ((UInt32)1 << 31);↩
↩
HRESULT ReadStream(ISequentialInStream *stream, void *data, size_t *processedSize) throw()↩
{↩
size_t size = *processedSize;↩
*processedSize = 0;↩
while (size != 0)↩
{↩
UInt32 curSize = (size < kBlockSize) ? (UInt32)size : kBlockSize;↩
UInt32 processedSizeLoc;↩
HRESULT res = stream->Read(data, curSize, &processedSizeLoc);↩
*processedSize += processedSizeLoc;↩
data = (void *)((Byte *)data + processedSizeLoc);↩
size -= processedSizeLoc;↩
RINOK(res);↩
if (processedSizeLoc == 0)↩
return S_OK;↩
}↩
return S_OK;↩
}↩
↩
HRESULT ReadStream_FALSE(ISequentialInStream *stream, void *data, size_t size) throw()↩
{↩
size_t processedSize = size;↩
RINOK(ReadStream(stream, data, &processedSize));↩
return (size == processedSize) ? S_OK : S_FALSE;↩
}↩
↩
HRESULT ReadStream_FAIL(ISequentialInStream *stream, void *data, size_t size) throw()↩
{↩
size_t processedSize = size;↩
RINOK(ReadStream(stream, data, &processedSize));↩
return (size == processedSize) ? S_OK : E_FAIL;↩
}↩
↩
HRESULT WriteStream(ISequentialOutStream *stream, const void *data, size_t size) throw()↩
{↩
while (size != 0)↩
{↩
UInt32 curSize = (size < kBlockSize) ? (UInt32)size : kBlockSize;↩
UInt32 processedSizeLoc;↩
HRESULT res = stream->Write(data, curSize, &processedSizeLoc);↩
data = (const void *)((const Byte *)data + processedSizeLoc);↩
size -= processedSizeLoc;↩
RINOK(res);↩
if (processedSizeLoc == 0)↩
return E_FAIL;↩
}↩
return S_OK;↩
}↩