1 // Copyright (c) 1997-2009 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 //

    15 

    16 /**

    17  @file

    18  @internalTechnology 

    19 */

    20 

    21 #ifndef __PPPCOMP_H__

    22 #define __PPPCOMP_H__

    23 

    24 #include <es_mbuf.h>

    25 

    26 // Return value from call to compress module

    27 enum TPppCompressReturnValue

    28 	{ EPppCompressedOK, EPppCompressedNotOK, EPppCompressedFrameExpanded };

    29 

    30 class CNifFactory;

    31 class CPppCompressor : public CObject

    32 	{

    33 public:

    34 	CPppCompressor(){};

    35 	virtual ~CPppCompressor(){};

    36 

    37 	virtual TPppCompressReturnValue Compress(RMBufChain& aPacket, TUint16 aPppId)=0;

    38 	virtual TBool ResetCompressor(TInt aLength, RMBufChain& aPacket)=0;

    39 protected:

    40 	CNifFactory*	iFactory;

    41 	};

    42 

    43 class CPppDeCompressor : public CObject

    44 	{

    45 public:

    46 	virtual TBool Decompress(RMBufQ& aBufferQ)=0;

    47 	virtual void ResetDecompressor(TInt aLength, RMBufChain& aPacket)=0;

    48 

    49 	CPppDeCompressor(){};

    50 	virtual ~CPppDeCompressor(){};

    51 protected:

    52 	CNifFactory*	iFactory;

    53 	};

    54 

    55 #endif //__PPPCOMP_H__