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60 lines
1.2 KiB
C++
Executable File
60 lines
1.2 KiB
C++
Executable File
// InStreamWithCRC.h
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#ifndef __INSTREAMWITHCRC_H
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#define __INSTREAMWITHCRC_H
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#include "../../../Common/CRC.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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CCRC _crc;
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public:
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void Init(ISequentialInStream *stream)
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{
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_stream = stream;
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_size = 0;
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_crc.Init();
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}
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void ReleaseStream() { _stream.Release(); }
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UInt32 GetCRC() const { return _crc.GetDigest(); }
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UInt64 GetSize() const { return _size; }
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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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CCRC _crc;
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public:
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void Init(IInStream *stream)
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{
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_stream = stream;
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_size = 0;
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_crc.Init();
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}
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void ReleaseStream() { _stream.Release(); }
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UInt32 GetCRC() const { return _crc.GetDigest(); }
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UInt64 GetSize() const { return _size; }
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};
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#endif
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