git.maemo.org Git - physicsfs/blob - lzma/CPP/7zip/Archive/7z/7zSpecStream.h

   1 // 7zSpecStream.h
   2
   3 #ifndef __7Z_SPEC_STREAM_H
   4 #define __7Z_SPEC_STREAM_H
   5
   6 #include "../../IStream.h"
   7 #include "../../ICoder.h"
   8 #include "../../../Common/MyCom.h"
   9
  10 class CSequentialInStreamSizeCount2:
  11   public ISequentialInStream,
  12   public ICompressGetSubStreamSize,
  13   public CMyUnknownImp
  14 {
  15   CMyComPtr<ISequentialInStream> _stream;
  16   CMyComPtr<ICompressGetSubStreamSize> _getSubStreamSize;
  17   UInt64 _size;
  18 public:
  19   void Init(ISequentialInStream *stream)
  20   {
  21     _stream = stream;
  22     _getSubStreamSize = 0;
  23     _stream.QueryInterface(IID_ICompressGetSubStreamSize, &_getSubStreamSize);
  24     _size = 0;
  25   }
  26   UInt64 GetSize() const { return _size; }
  27
  28   MY_UNKNOWN_IMP1(ICompressGetSubStreamSize)
  29
  30   STDMETHOD(Read)(void *data, UInt32 size, UInt32 *processedSize);
  31
  32   STDMETHOD(GetSubStreamSize)(UInt64 subStream, UInt64 *value);
  33 };
  34
  35 #endif