/*

* Copyright (c) 2005 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:  

*

*/

#ifndef CMCERELIABLESENDER_H

#define CMCERELIABLESENDER_H

#include <e32base.h>

#include <sipservertransaction.h> 

#include "mcereliableobserver.h"

#include "mcesrv.h"

// CLASS DECLARATION 

/**

 *  MCE Reliable Sender

 *

 *  @lib 

 *  @since

 */

class CMceReliableSender : public CBase

	{

    public:  //Construtor and Destructor

        // Two-phase Constructor

         static CMceReliableSender* NewL( MMceReliableObserver& aObserver );

		// Destructor.

		 ~CMceReliableSender( );

    public:     // New Functions

       /**

        * Get an RSeq Value

        * @param aTransaction CSIPServerTransaction 

        * @return TUint Rseq Value

        **/

        TUint Rseq( CSIPServerTransaction& aTransaction );

       /**

        * Send Reliable Provisional Responses

        * @param aTransaction CSIPServerTransaction 

        * @param aElements Response Elements.

        **/

		void SendResponseL( CSIPServerTransaction& aTransaction, 

		                    CSIPResponseElements* aElements );

	   /**

        * Match PRACK agains received responses.

        * @param aPrack Server Transaction.

        * @return TBool ETrue if aPrack matched.

        **/

		TBool PrackReceived( CSIPServerTransaction& aPrack );

    private:    //New Functions

       /**

        * By default Symbian 2nd phase constructor is private.

        */

        void ConstructL();

       /**

        * C++ default constructor

        */

        CMceReliableSender( MMceReliableObserver& aObserver );

        void TimeOut( CSIPServerTransaction* aTransaction );

        void CloneAndSendResponseL( );

	private: // New Functions

        static TInt TimerExpire( TAny* aSelf );						

	   	static CSIPResponseElements* ResponseCloneL( 

	   	                                CSIPResponseElements& aElements );

    private: // data

       	TInt  iT1;

       	TUint iSequenceNumber;

		TInt  iTimerVal;

		TInt  iRetransTimer;

		TUint iTotaltime;

		CSIPServerTransaction* iServerTransaction;

		TBool iTransactionStatus;

		TBool iTransactionMatched;

		TBool iTransTimeoutFlag;

		CSIPResponseElements* iResponseElements;

		MMceReliableObserver* iObserver;

		// Delta Timer Active Object 

		CDeltaTimer* iDTimer;

		// Create TDeltaTimerEntry object 

        TDeltaTimerEntry iDeltaEntry;

        //definitions for unit testing

	    MCESRV_UT_DEFINITIONS

        };

#endif      // CMCERELIABLESENDE_H

// End of File