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// --------------------------------------------------------------------------
//
// File
// Name: PartialReadStream.h
// Purpose: Read part of another stream
// Created: 2003/08/26
//
// --------------------------------------------------------------------------
#ifndef PARTIALREADSTREAM__H
#define PARTIALREADSTREAM__H
#include "IOStream.h"
// --------------------------------------------------------------------------
//
// Class
// Name: PartialReadStream
// Purpose: Read part of another stream
// Created: 2003/08/26
//
// --------------------------------------------------------------------------
class PartialReadStream : public IOStream
{
public:
PartialReadStream(IOStream &rSource, pos_type BytesToRead);
~PartialReadStream();
private:
// no copying allowed
PartialReadStream(const IOStream &);
PartialReadStream(const PartialReadStream &);
public:
virtual int Read(void *pBuffer, int NBytes, int Timeout = IOStream::TimeOutInfinite);
virtual pos_type BytesLeftToRead();
virtual void Write(const void *pBuffer, int NBytes,
int Timeout = IOStream::TimeOutInfinite);
virtual bool StreamDataLeft();
virtual bool StreamClosed();
private:
IOStream &mrSource;
pos_type mBytesLeft;
};
#endif // PARTIALREADSTREAM__H
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