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// --------------------------------------------------------------------------
//
// File
//		Name:    FileStream.h
//		Purpose: FileStream interface to files
//		Created: 2003/07/31
//
// --------------------------------------------------------------------------

#ifndef FILESTREAM__H
#define FILESTREAM__H

#include "IOStream.h"

#include <fcntl.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <unistd.h>

class FileStream : public IOStream
{
public:
	FileStream(const char *Filename, int flags = O_RDONLY, int mode = (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH));
	FileStream(int FileDescriptor);
	FileStream(const FileStream &rToCopy);
	virtual ~FileStream();
	
	virtual int Read(void *pBuffer, int NBytes, int Timeout = IOStream::TimeOutInfinite);
	virtual pos_type BytesLeftToRead();
	virtual void Write(const void *pBuffer, int NBytes);
	virtual pos_type GetPosition() const;
	virtual void Seek(IOStream::pos_type Offset, int SeekType);
	virtual void Close();
	
	virtual bool StreamDataLeft();
	virtual bool StreamClosed();

private:
	int mOSFileHandle;
	bool mIsEOF;
};


#endif // FILESTREAM__H