68 lines
1.5 KiB
C
68 lines
1.5 KiB
C
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// InStreamWithCRC.h
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#ifndef __IN_STREAM_WITH_CRC_H
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#define __IN_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 CSequentialInStreamWithCRC:
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public ISequentialInStream,
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public CMyUnknownImp
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{
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public:
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MY_UNKNOWN_IMP
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STDMETHOD(Read)(void *data, UInt32 size, UInt32 *processedSize);
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private:
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CMyComPtr<ISequentialInStream> _stream;
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UInt64 _size;
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UInt32 _crc;
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bool _wasFinished;
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public:
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void SetStream(ISequentialInStream *stream) { _stream = stream; }
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void Init()
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{
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_size = 0;
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_wasFinished = false;
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_crc = CRC_INIT_VAL;
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}
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void ReleaseStream() { _stream.Release(); }
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UInt32 GetCRC() const { return CRC_GET_DIGEST(_crc); }
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UInt64 GetSize() const { return _size; }
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bool WasFinished() const { return _wasFinished; }
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};
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class CInStreamWithCRC:
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public IInStream,
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public CMyUnknownImp
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{
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public:
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MY_UNKNOWN_IMP1(IInStream)
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STDMETHOD(Read)(void *data, UInt32 size, UInt32 *processedSize);
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STDMETHOD(Seek)(Int64 offset, UInt32 seekOrigin, UInt64 *newPosition);
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private:
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CMyComPtr<IInStream> _stream;
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UInt64 _size;
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UInt32 _crc;
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// bool _wasFinished;
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public:
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void SetStream(IInStream *stream) { _stream = stream; }
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void Init()
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{
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_size = 0;
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// _wasFinished = false;
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_crc = CRC_INIT_VAL;
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}
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void ReleaseStream() { _stream.Release(); }
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UInt32 GetCRC() const { return CRC_GET_DIGEST(_crc); }
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UInt64 GetSize() const { return _size; }
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// bool WasFinished() const { return _wasFinished; }
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};
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#endif
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