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// OutStreamWithCRC.h
#ifndef __OUTSTREAMWITHCRC_H
#define __OUTSTREAMWITHCRC_H
#include "../../../Common/MyCom.h"
#include "../../IStream.h"
extern "C"
{
#include "../../../../C/7zCrc.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;
UInt32 _crc;
bool _calculateCrc;
public:
void SetStream(ISequentialOutStream *stream) { _stream = stream; }
void Init(bool calculateCrc = true)
{
_size = 0;
_calculateCrc = calculateCrc;
_crc = CRC_INIT_VAL;
}
void ReleaseStream() { _stream.Release(); }
UInt64 GetSize() const { return _size; }
UInt32 GetCRC() const { return CRC_GET_DIGEST(_crc); }
void InitCRC() { _crc = CRC_INIT_VAL; }
};
#endif
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