// 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 __VJIF_H__

#define __VJIF_H__

#include <nifman.h>

class CVJCompressorIf : public CObject

/**

Van Jacobson TCP/IP header compressor base class

@internalTechnology

*/

	{

public:

	CVJCompressorIf(){};

	virtual ~CVJCompressorIf(){};

	virtual TInt VJCompressFrame(RMBufChain& aPacket)=0;

protected:

	/** Factory that created this object */

	CNifFactory*	iFactory;

	};

class CVJDeCompressorIf : public CObject

/**

Van Jacobson TCP/IP header decompressor base class

@internalTechnology

*/

	{

public:

	CVJDeCompressorIf(){};

	virtual ~CVJDeCompressorIf(){};

	virtual TBool DecompVJUncomp(RMBufChain& aPacket)=0;

	virtual TBool DecompVJComp(RMBufChain& aPacket)=0;

	virtual void CRCError()=0;

protected:

	/** Factory that created this object */

	CNifFactory*	iFactory;

	};

class CVJCompFactory : public CNifFactory

/**

Factory base for creating a concrete instance of a CVJCompressor

or CVJDeCompressor

@internalTechnology

*/

	{

public:

	virtual void InstallL()=0;

	virtual CVJCompressorIf* NewVJCompressorL( TInt aMaxVJSlots, TInt aCompressConnId)=0;

	virtual CVJDeCompressorIf* NewVJDeCompressorL(TInt aMaxVJSlots)=0;

	};

#endif //__VJIF_H__