Files
easy7zip/CPP/7zip/Archive/Common/OutStreamWithCRC.h
Igor Pavlov d9666cf046 4.44 beta
2016-05-28 00:15:49 +01:00

38 lines
839 B
C++
Executable File

// OutStreamWithCRC.h
#ifndef __OUTSTREAMWITHCRC_H
#define __OUTSTREAMWITHCRC_H
#include "../../../Common/CRC.h"
#include "../../../Common/MyCom.h"
#include "../../IStream.h"
class COutStreamWithCRC:
public ISequentialOutStream,
public CMyUnknownImp
{
public:
MY_UNKNOWN_IMP
STDMETHOD(Write)(const void *data, UInt32 size, UInt32 *processedSize);
private:
CMyComPtr<ISequentialOutStream> _stream;
UInt64 _size;
CCRC _crc;
bool _calculateCrc;
public:
void SetStream(ISequentialOutStream *stream) { _stream = stream; }
void Init(bool calculateCrc = true)
{
_size = 0;
_calculateCrc = calculateCrc;
_crc.Init();
}
void ReleaseStream() { _stream.Release(); }
UInt64 GetSize() const { return _size; }
UInt32 GetCRC() const { return _crc.GetDigest(); }
void InitCRC() { _crc.Init(); }
};
#endif