// Copyright (c) 1997-2009 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:

//

/**

 @file

 @internalTechnology 

*/

#ifndef __PPPCOMP_H__

#define __PPPCOMP_H__

#include <es_mbuf.h>

// Return value from call to compress module

enum TPppCompressReturnValue

	{ EPppCompressedOK, EPppCompressedNotOK, EPppCompressedFrameExpanded };

class CNifFactory;

class CPppCompressor : public CObject

	{

public:

	CPppCompressor(){};

	virtual ~CPppCompressor(){};

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

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

protected:

	CNifFactory*	iFactory;

	};

class CPppDeCompressor : public CObject

	{

public:

	virtual TBool Decompress(RMBufQ& aBufferQ)=0;

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

	CPppDeCompressor(){};

	virtual ~CPppDeCompressor(){};

protected:

	CNifFactory*	iFactory;

	};

#endif //__PPPCOMP_H__