//
// G A M E.O.N.E - LOW LEVEL LIB V1.0
// Copyright (C) 2001 LEVEL ONE ENTERTAINMENT, 
// Licensed under the terms of LGPL.
//:---------------------------------------------------------------------------
//:Description
//
// LOW LEVEL CStream CLASS INCLUDE FILE
//
//:---------------------------------------------------------------------------

#ifndef _STRMOD_H
#define _STRMOD_H

//-------------------------------------------------------------------------------------------------
//															Stream class declaration		
//-------------------------------------------------------------------------------------------------

class	CStreamModule
{
//-------------------------------------------------------------------------------------------------
//															construction / destruction		
//-------------------------------------------------------------------------------------------------
public:                                                                                            
				CStreamModule();
	virtual		~CStreamModule();	
//-------------------------------------------------------------------------------------------------
//															virtual member functions	
//-------------------------------------------------------------------------------------------------
	virtual		int	read(void *ioBuf, int iNum);
	virtual		int	write(void *ioBuf, int iNum);
	virtual		int	ioCtl( char *iCmd, void *ioOption );// send a command down the stream
	virtual		CStreamModule * Clone();
//-------------------------------------------------------------------------------------------------
//															public member functions	
//-------------------------------------------------------------------------------------------------
public:

	CStreamModule	*link(
						CStreamModule	*iPrev,  
						CStreamModule	*iNext
						);
	CStreamModule	*unlink(void);
	CStreamModule	*Next(void);						// iterator
	CStreamModule	*Prev(void);						// iterator
	           
//-------------------------------------------------------------------------------------------------
//															instance variables	
//-------------------------------------------------------------------------------------------------
	CStreamModule		*mNext;							// Pointer to the next module in the stream
	CStreamModule		*mPrev;							// Pointer to the previous module in the stream
};

#endif