// Copyright (c) 1999-2009 Nokia Corporation and/or its subsidiary(-ies).

 // All rights reserved.

 // This component and the accompanying materials are made available

 // under the terms of "Eclipse Public License v1.0"

 // which accompanies this distribution, and is available

 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

 //

 // Initial Contributors:

 // Nokia Corporation - initial contribution.

 //

 // Contributors:

 //

 // Description:

 // Defines Mixin class for a BufferManager

 // 

 //

 #ifndef __EZBUFFERMANAGER_H__

 #define __EZBUFFERMANAGER_H__

 class CEZZStream;

 /**

 Interface class to manage input and output buffers for compression and de-compression

 @publishedAll

 @released

 */

 class MEZBufferManager

 	{

 public:

 	/**

 	Initialise the stream with input and output buffers and starts reading

 	@param aZStream the stream to initialise

 	*/

 	virtual void InitializeL(CEZZStream &aZStream) = 0;

 	/**

 	Set the stream's input buffer and starts reading

 	@param aZStream the steam whose input buffer to set

 	*/	

 	virtual void NeedInputL(CEZZStream &aZStream) = 0;

 	/**

 	Set the stream's output buffer and start writing

 	@param aZStream the steam whose output buffer to set

 	*/	

 	virtual void NeedOutputL(CEZZStream &aZStream) = 0;

 	/**

 	Finish writing to the stream

 	@param aZStream the stream to complete writing to

 	*/	

 	virtual void FinalizeL(CEZZStream &aZStream) = 0;

 	};

 #endif