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