misc/libphysfs/lzma/CPP/7zip/Archive/7z/7zSpecStream.h
author nemo
Mon, 10 Apr 2017 12:06:43 -0400
changeset 12218 bb5522e88ab2
permissions -rw-r--r--
bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash

// 7zSpecStream.h

#ifndef __7Z_SPEC_STREAM_H
#define __7Z_SPEC_STREAM_H

#include "../../IStream.h"
#include "../../ICoder.h"
#include "../../../Common/MyCom.h"

class CSequentialInStreamSizeCount2: 
  public ISequentialInStream,
  public ICompressGetSubStreamSize,
  public CMyUnknownImp
{
  CMyComPtr<ISequentialInStream> _stream;
  CMyComPtr<ICompressGetSubStreamSize> _getSubStreamSize;
  UInt64 _size;
public:
  void Init(ISequentialInStream *stream)
  {
    _stream = stream;
    _getSubStreamSize = 0;
    _stream.QueryInterface(IID_ICompressGetSubStreamSize, &_getSubStreamSize);
    _size = 0;
  }
  UInt64 GetSize() const { return _size; }

  MY_UNKNOWN_IMP1(ICompressGetSubStreamSize)

  STDMETHOD(Read)(void *data, UInt32 size, UInt32 *processedSize);

  STDMETHOD(GetSubStreamSize)(UInt64 subStream, UInt64 *value);
};

#endif