/*

* Copyright (c) 2005-2007 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:  IKEv1 keep alive object

*

*/

#ifndef C_IKEV1KEEPALIVE_H

#define C_IKEV1KEEPALIVE_H

#include <in_sock.h> // TInetAddr

class CIkev1PluginSession;

class CEchoSender;

/** 

* IKE keepalive event handler

* @internalComponent

*/

class MDpdHeartBeatEventHandler

{

	public:

		/** 

         * IKE PKI service operation completed 

         * @internalComponent

         * @param aStatus completion status of operation

         * @param aObject pointer to CIkePkiService object

         * 

         */

		virtual void EventHandlerL()=0; 

};

NONSHARABLE_CLASS(CIkeV1KeepAlive) : public CTimer

{

	public:

		static CIkeV1KeepAlive* NewL( CIkev1PluginSession& aPluginSession,

		                              TInt aPort,

		                              TInetAddr& aDestAddr, 

		                              TInt NatKeepAlive,

		                              TInt DpdKeepAlive,

		                              MDpdHeartBeatEventHandler* aHandler,

		                              TUint8 aDscp = 0 );

		~CIkeV1KeepAlive();

	protected:

	//

	// CActive methods

	//

		void DoCancel();

		void RunL();

		TInt RunError(TInt aError);

	private: // implementation

	    CIkeV1KeepAlive( CIkev1PluginSession& aPluginSession,

	                     TInt aPort,

	                     TInetAddr& aDestAddr, 

	                     TInt NatKeepAlive,

	                     TInt DpdKeepAlive, 

	                     MDpdHeartBeatEventHandler* aHandler,

	                     TUint8 aDscp );

		void ConstructL();		

		void StartTimer();

	private: // data

		MDpdHeartBeatEventHandler* iCallback;

		CIkev1PluginSession&       iPluginSession;

		TInt                       iPort;

	    /** Data to send in keepalive packet */

	    TBuf8<1>                   iMsg;		

		TInt                       iNatKeepAlive;

		TInt                       iDpdKeepAlive;

		TInt                       iCurrDPDTimeLeft;

		TInt                       iRemainingTime;

		TInetAddr                  iDestAddr; 

		TUint8                     iDscp;

};

#endif // C_IKEV1KEEPALIVE_H