diff options
Diffstat (limited to 'src/libs/3rdparty/7zip/win/CPP/7zip/Archive/Common/InStreamWithCRC.cpp')
-rw-r--r-- | src/libs/3rdparty/7zip/win/CPP/7zip/Archive/Common/InStreamWithCRC.cpp | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/src/libs/3rdparty/7zip/win/CPP/7zip/Archive/Common/InStreamWithCRC.cpp b/src/libs/3rdparty/7zip/win/CPP/7zip/Archive/Common/InStreamWithCRC.cpp new file mode 100644 index 000000000..a2d688328 --- /dev/null +++ b/src/libs/3rdparty/7zip/win/CPP/7zip/Archive/Common/InStreamWithCRC.cpp @@ -0,0 +1,46 @@ +// InStreamWithCRC.cpp + +#include "StdAfx.h" + +#include "InStreamWithCRC.h" + +STDMETHODIMP CSequentialInStreamWithCRC::Read(void *data, UInt32 size, UInt32 *processedSize) +{ + UInt32 realProcessed = 0; + HRESULT result = S_OK; + if (_stream) + result = _stream->Read(data, size, &realProcessed); + _size += realProcessed; + if (size != 0 && realProcessed == 0) + _wasFinished = true; + _crc = CrcUpdate(_crc, data, realProcessed); + if (processedSize) + *processedSize = realProcessed; + return result; +} + +STDMETHODIMP CInStreamWithCRC::Read(void *data, UInt32 size, UInt32 *processedSize) +{ + UInt32 realProcessed = 0; + HRESULT result = S_OK; + if (_stream) + result = _stream->Read(data, size, &realProcessed); + _size += realProcessed; + /* + if (size != 0 && realProcessed == 0) + _wasFinished = true; + */ + _crc = CrcUpdate(_crc, data, realProcessed); + if (processedSize) + *processedSize = realProcessed; + return result; +} + +STDMETHODIMP CInStreamWithCRC::Seek(Int64 offset, UInt32 seekOrigin, UInt64 *newPosition) +{ + if (seekOrigin != STREAM_SEEK_SET || offset != 0) + return E_FAIL; + _size = 0; + _crc = CRC_INIT_VAL; + return _stream->Seek(offset, seekOrigin, newPosition); +} |