/*==LICENSE==*

CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011  Cyan Worlds, Inc.

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.

You can contact Cyan Worlds, Inc. by email legal@cyan.com
 or by snail mail at:
      Cyan Worlds, Inc.
      14617 N Newport Hwy
      Mead, WA   99021

*==LICENSE==*/
#ifndef plRingBuffer_h_inc
#define plRingBuffer_h_inc

#include "plMemBuffer.h"


class plRingBuffer : protected plMemBuffer
{
public:
	plRingBuffer(int size=4096);
	void FullCompress();
	void Compress();
	bool Put(const char * data, int len);
	bool Get(char * data, int len);
	int AmountBuffered();
	int BufferAvailable();
	void Reset();

protected:
	int fStartPos;
	int fEndPos;
	char * GetBufferStart();
	char * GetBufferOpen();
	void ForceWindowSlide();
#define FastGetBufferStart() (fBuffer+fStartPos)
#define FastAmountBuffered() (fEndPos-fStartPos)
	bool PutFast(const char * data, int len);
	
};



#endif //  plRingBuffer_h_inc