/*

* Copyright (c) 2007-2009 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:

* Name          : TimerValues.h

* Part of       : TransactionUser

* Version       : SIP/6.0

*

*/

/**

 @internalComponent

*/

#ifndef TIMERVALUES_H

#define TIMERVALUES_H

// INCLUDES

#include <e32base.h>

// CLASS DECLARATION

/**

 * TTimerValues wraps together the values of timers which are read from

 * a configuration file.

 */

class TTimerValues

	{

public: // Constructors

	/**

	 * Default constructor

	 */

	TTimerValues();

	/**

	 * Constructor

	 *

	 * @param aT1 Value for T1

	 * @param aT2 Value for T2

	 * @param aT4 Value for T4

	 */

	TTimerValues(TUint aT1, TUint aT2, TUint aT4);

public: // New functions

	/**

	 * Checks if the timer values are reasonable. If they aren't, function

     * leaves.

	 *

	 * @return value ETrue if the values are ok, EFalse otherwise.

	 */

	TBool CheckValues() const;

	/**

	 * Doubles the value of aDuration, until it reaches T2. If aDuration is

	 * zero, it is set to T1.

	 *

	 * @param aDuration IN: old value of aDuration, OUT: new value	 

	 */

	void DoubleUptoT2(TUint& aDuration) const;

	/**

	 * Returns the value of 64 times T1.

	 *

	 * @return 64xT1

	 */

	TUint Duration64xT1() const;

	/**

	 * Returns the value of T1

	 *

	 * @return T1

	 */

	TUint T1() const;

	/**

	 * Returns the value of T2

	 *

	 * @return T2

	 */

	TUint T2() const;

	/**

	 * Returns the value of T4

	 *	 

	 * @return T4

	 */

	TUint T4() const;    

private: // Data

	TUint iT1;

	TUint iT2;

	TUint iT4;

	// For testing purposes

#ifdef CPPUNIT_TEST	

	friend class CInviteCTa_Calling_Test;

	friend class CNormalCTa_Proceeding_Test;

	friend class CInviteUAC_WaitAckFromApp_Test;

	friend class ClientTransaction_Test;

	friend class CServerTransaction_Test;

    friend class CUserAgentClient_Test;

    friend class CTransactionUser_Test;

#endif	

	};

#endif // end of TIMERVALUES_H

// End of File