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38 lines
937 B
38 lines
937 B
4 months ago
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// OutStreamWithCRC.h
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#ifndef __OUT_STREAM_WITH_CRC_H
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#define __OUT_STREAM_WITH_CRC_H
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#include "../../../../C/7zCrc.h"
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#include "../../../Common/MyCom.h"
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#include "../../IStream.h"
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class COutStreamWithCRC:
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public ISequentialOutStream,
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public CMyUnknownImp
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{
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CMyComPtr<ISequentialOutStream> _stream;
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UInt64 _size;
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UInt32 _crc;
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bool _calculate;
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public:
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MY_UNKNOWN_IMP
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STDMETHOD(Write)(const void *data, UInt32 size, UInt32 *processedSize);
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void SetStream(ISequentialOutStream *stream) { _stream = stream; }
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void ReleaseStream() { _stream.Release(); }
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void Init(bool calculate = true)
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{
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_size = 0;
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_calculate = calculate;
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_crc = CRC_INIT_VAL;
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}
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void EnableCalc(bool calculate) { _calculate = calculate; }
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void InitCRC() { _crc = CRC_INIT_VAL; }
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UInt64 GetSize() const { return _size; }
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UInt32 GetCRC() const { return CRC_GET_DIGEST(_crc); }
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};
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#endif
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