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

// All rights reserved.

// This component and the accompanying materials are made available

// which accompanies this distribution, and is available

//

// 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