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

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

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

     5 // which accompanies this distribution, and is available

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

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 // Defines Mixin class for a BufferManager

    15 // 

    16 //

    17 

    18 #ifndef __EZBUFFERMANAGER_H__

    19 #define __EZBUFFERMANAGER_H__

    20 

    21 class CEZZStream;

    22 

    23 /**

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

    25 

    26 @publishedAll

    27 @released

    28 */

    29 class MEZBufferManager

    30 	{

    31 public:

    32 

    33 	/**

    34 	Initialise the stream with input and output buffers and starts reading

    35 

    36 	@param aZStream the stream to initialise

    37 	*/

    38 	virtual void InitializeL(CEZZStream &aZStream) = 0;

    39 	

    40 	/**

    41 	Set the stream's input buffer and starts reading

    42 	

    43 	@param aZStream the steam whose input buffer to set

    44 	*/	

    45 	virtual void NeedInputL(CEZZStream &aZStream) = 0;

    46 	

    47 	/**

    48 	Set the stream's output buffer and start writing

    49 

    50 	@param aZStream the steam whose output buffer to set

    51 	*/	

    52 	virtual void NeedOutputL(CEZZStream &aZStream) = 0;

    53 	

    54 	/**

    55 	Finish writing to the stream

    56 

    57 	@param aZStream the stream to complete writing to

    58 	*/	

    59 	virtual void FinalizeL(CEZZStream &aZStream) = 0;

    60 	};

    61 

    62 #endif

    63