public ISequentialInStream,

public CMyUnknownImp

{

CMyComPtr<ISequentialInStream> _stream;

UInt64 _size;

UInt64 _pos;

bool _wasFinished;

public:

void SetStream(ISequentialInStream *stream) { _stream = stream; }

void Init(UInt64 streamSize)

{

_size = streamSize;

_pos = 0;

_wasFinished = false;

}

MY_UNKNOWN_IMP

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

UInt64 GetSize() const { return _pos; }

bool WasFinished() const { return _wasFinished; }