1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/win32/7zip/7z/CPP/7zip/Archive/Common/MultiStream.h	Sat Mar 03 10:31:27 2012 -0600
     1.3 @@ -0,0 +1,76 @@
     1.4 +// MultiStream.h
     1.5 +
     1.6 +#ifndef __MULTISTREAM_H
     1.7 +#define __MULTISTREAM_H
     1.8 +
     1.9 +#include "../../../Common/MyCom.h"
    1.10 +#include "../../../Common/MyVector.h"
    1.11 +#include "../../Archive/IArchive.h"
    1.12 +
    1.13 +class CMultiStream:
    1.14 +  public IInStream,
    1.15 +  public CMyUnknownImp
    1.16 +{
    1.17 +  int _streamIndex;
    1.18 +  UInt64 _pos;
    1.19 +  UInt64 _seekPos;
    1.20 +  UInt64 _totalLength;
    1.21 +public:
    1.22 +  struct CSubStreamInfo
    1.23 +  {
    1.24 +    CMyComPtr<IInStream> Stream;
    1.25 +    UInt64 Pos;
    1.26 +    UInt64 Size;
    1.27 +  };
    1.28 +  CObjectVector<CSubStreamInfo> Streams;
    1.29 +  void Init()
    1.30 +  {
    1.31 +    _streamIndex = 0;
    1.32 +    _pos = 0;
    1.33 +    _seekPos = 0;
    1.34 +    _totalLength = 0;
    1.35 +    for (int i = 0; i < Streams.Size(); i++)
    1.36 +      _totalLength += Streams[i].Size;
    1.37 +  }
    1.38 +
    1.39 +  MY_UNKNOWN_IMP1(IInStream)
    1.40 +
    1.41 +  STDMETHOD(Read)(void *data, UInt32 size, UInt32 *processedSize);
    1.42 +  STDMETHOD(Seek)(Int64 offset, UInt32 seekOrigin, UInt64 *newPosition);
    1.43 +};
    1.44 +
    1.45 +/*
    1.46 +class COutMultiStream:
    1.47 +  public IOutStream,
    1.48 +  public CMyUnknownImp
    1.49 +{
    1.50 +  int _streamIndex; // required stream
    1.51 +  UInt64 _offsetPos; // offset from start of _streamIndex index
    1.52 +  UInt64 _absPos;
    1.53 +  UInt64 _length;
    1.54 +
    1.55 +  struct CSubStreamInfo
    1.56 +  {
    1.57 +    CMyComPtr<ISequentialOutStream> Stream;
    1.58 +    UInt64 Size;
    1.59 +    UInt64 Pos;
    1.60 + };
    1.61 +  CObjectVector<CSubStreamInfo> Streams;
    1.62 +public:
    1.63 +  CMyComPtr<IArchiveUpdateCallback2> VolumeCallback;
    1.64 +  void Init()
    1.65 +  {
    1.66 +    _streamIndex = 0;
    1.67 +    _offsetPos = 0;
    1.68 +    _absPos = 0;
    1.69 +    _length = 0;
    1.70 +  }
    1.71 +
    1.72 +  MY_UNKNOWN_IMP1(IOutStream)
    1.73 +
    1.74 +  STDMETHOD(Write)(const void *data, UInt32 size, UInt32 *processedSize);
    1.75 +  STDMETHOD(Seek)(Int64 offset, UInt32 seekOrigin, UInt64 *newPosition);
    1.76 +};
    1.77 +*/
    1.78 +
    1.79 +#endif