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// --------------------------------------------------------------------------
//
// File
// Name: ReadLoggingStream.h
// Purpose: Wrapper around IOStreams that logs read progress
// Created: 2007/01/16
//
// --------------------------------------------------------------------------
#ifndef READLOGGINGSTREAM__H
#define READLOGGINGSTREAM__H
#include "IOStream.h"
#include "BoxTime.h"
class ReadLoggingStream : public IOStream
{
public:
class Logger
{
public:
virtual ~Logger() { }
virtual void Log(int64_t readSize, int64_t offset,
int64_t length, box_time_t elapsed,
box_time_t finish) = 0;
virtual void Log(int64_t readSize, int64_t offset,
int64_t length) = 0;
virtual void Log(int64_t readSize, int64_t offset) = 0;
};
private:
IOStream& mrSource;
IOStream::pos_type mOffset, mLength, mTotalRead;
box_time_t mStartTime;
Logger& mrLogger;
public:
ReadLoggingStream(IOStream& rSource, Logger& rLogger);
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 pos_type GetPosition() const;
virtual void Seek(IOStream::pos_type Offset, int SeekType);
virtual void Close();
virtual bool StreamDataLeft();
virtual bool StreamClosed();
private:
ReadLoggingStream(const ReadLoggingStream &rToCopy)
: mrSource(rToCopy.mrSource), mrLogger(rToCopy.mrLogger)
{ /* do not call */ }
};
#endif // READLOGGINGSTREAM__H
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