williamr@2: // Copyright (c) 1999-2009 Nokia Corporation and/or its subsidiary(-ies).
williamr@2: // All rights reserved.
williamr@2: // This component and the accompanying materials are made available
williamr@4: // under the terms of "Eclipse Public License v1.0"
williamr@2: // which accompanies this distribution, and is available
williamr@4: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
williamr@2: //
williamr@2: // Initial Contributors:
williamr@2: // Nokia Corporation - initial contribution.
williamr@2: //
williamr@2: // Contributors:
williamr@2: //
williamr@2: // Description:
williamr@2: // Defines Mixin class for a BufferManager
williamr@2: // 
williamr@2: //
williamr@2: 
williamr@2: #ifndef __EZBUFFERMANAGER_H__
williamr@2: #define __EZBUFFERMANAGER_H__
williamr@2: 
williamr@2: class CEZZStream;
williamr@2: 
williamr@2: /**
williamr@2: Interface class to manage input and output buffers for compression and de-compression
williamr@2: 
williamr@2: @publishedAll
williamr@2: @released
williamr@2: */
williamr@2: class MEZBufferManager
williamr@2: 	{
williamr@2: public:
williamr@2: 
williamr@2: 	/**
williamr@2: 	Initialise the stream with input and output buffers and starts reading
williamr@2: 
williamr@2: 	@param aZStream the stream to initialise
williamr@2: 	*/
williamr@2: 	virtual void InitializeL(CEZZStream &aZStream) = 0;
williamr@2: 	
williamr@2: 	/**
williamr@2: 	Set the stream's input buffer and starts reading
williamr@2: 	
williamr@2: 	@param aZStream the steam whose input buffer to set
williamr@2: 	*/	
williamr@2: 	virtual void NeedInputL(CEZZStream &aZStream) = 0;
williamr@2: 	
williamr@2: 	/**
williamr@2: 	Set the stream's output buffer and start writing
williamr@2: 
williamr@2: 	@param aZStream the steam whose output buffer to set
williamr@2: 	*/	
williamr@2: 	virtual void NeedOutputL(CEZZStream &aZStream) = 0;
williamr@2: 	
williamr@2: 	/**
williamr@2: 	Finish writing to the stream
williamr@2: 
williamr@2: 	@param aZStream the stream to complete writing to
williamr@2: 	*/	
williamr@2: 	virtual void FinalizeL(CEZZStream &aZStream) = 0;
williamr@2: 	};
williamr@2: 
williamr@2: #endif
williamr@4: