diff options
Diffstat (limited to 'CPP/7zip/Common/StreamObjects.cpp')
-rwxr-xr-x | CPP/7zip/Common/StreamObjects.cpp | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/CPP/7zip/Common/StreamObjects.cpp b/CPP/7zip/Common/StreamObjects.cpp new file mode 100755 index 00000000..32f8f306 --- /dev/null +++ b/CPP/7zip/Common/StreamObjects.cpp @@ -0,0 +1,68 @@ +// StreamObjects.cpp + +#include "StdAfx.h" + +#include "StreamObjects.h" +#include "../../Common/Defs.h" + + +STDMETHODIMP CSequentialInStreamImp::Read(void *data, UInt32 size, UInt32 *processedSize) +{ + UInt32 numBytesToRead = (UInt32)(MyMin(_pos + size, _size) - _pos); + memmove(data, _dataPointer + _pos, numBytesToRead); + _pos += numBytesToRead; + if(processedSize != NULL) + *processedSize = numBytesToRead; + return S_OK; +} + + +void CWriteBuffer::Write(const void *data, size_t size) +{ + size_t newCapacity = _size + size; + _buffer.EnsureCapacity(newCapacity); + memmove(_buffer + _size, data, size); + _size += size; +} + +STDMETHODIMP CSequentialOutStreamImp::Write(const void *data, UInt32 size, UInt32 *processedSize) +{ + _writeBuffer.Write(data, size); + if(processedSize != NULL) + *processedSize = size; + return S_OK; +} + +STDMETHODIMP CSequentialOutStreamImp2::Write(const void *data, UInt32 size, UInt32 *processedSize) +{ + UInt32 newSize = size; + if (_pos + size > _size) + newSize = (UInt32)(_size - _pos); + memmove(_buffer + _pos, data, newSize); + if(processedSize != NULL) + *processedSize = newSize; + _pos += newSize; + if (newSize != size) + return E_FAIL; + return S_OK; +} + +STDMETHODIMP CSequentialInStreamSizeCount::Read(void *data, UInt32 size, UInt32 *processedSize) +{ + UInt32 realProcessedSize; + HRESULT result = _stream->Read(data, size, &realProcessedSize); + _size += realProcessedSize; + if (processedSize != 0) + *processedSize = realProcessedSize; + return result; +} + +STDMETHODIMP CSequentialOutStreamSizeCount::Write(const void *data, UInt32 size, UInt32 *processedSize) +{ + UInt32 realProcessedSize; + HRESULT result = _stream->Write(data, size, &realProcessedSize); + _size += realProcessedSize; + if (processedSize != 0) + *processedSize = realProcessedSize; + return result; +} |