diff options
author | 2015-01-11 08:10:25 +0100 | |
---|---|---|
committer | 2015-01-11 08:10:25 +0100 | |
commit | 6a23c2f3b766cf4fc7028628f76b5ff9396383f0 (patch) | |
tree | a01e16637118ae0c80f337119898bdf18f081e24 /3rdparty/lzma/CPP/7zip/Common/StreamUtils.cpp | |
parent | 45ac9b351e0076c371de4c7453f59567b27b1cb6 (diff) |
Added full lzma sdk source (nw)
Diffstat (limited to '3rdparty/lzma/CPP/7zip/Common/StreamUtils.cpp')
-rw-r--r-- | 3rdparty/lzma/CPP/7zip/Common/StreamUtils.cpp | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/3rdparty/lzma/CPP/7zip/Common/StreamUtils.cpp b/3rdparty/lzma/CPP/7zip/Common/StreamUtils.cpp new file mode 100644 index 00000000000..049e4aa1754 --- /dev/null +++ b/3rdparty/lzma/CPP/7zip/Common/StreamUtils.cpp @@ -0,0 +1,56 @@ +// StreamUtils.cpp + +#include "StdAfx.h" + +#include "StreamUtils.h" + +static const UInt32 kBlockSize = ((UInt32)1 << 31); + +HRESULT ReadStream(ISequentialInStream *stream, void *data, size_t *processedSize) +{ + 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) +{ + 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) +{ + 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) +{ + 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; +} |