/*

* Copyright (c) 2006-2009 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          : TimerValueRetriever.h

* Part of       : TransactionUser

* Version       : SIP/5.0

*

*/

/**

 @internalComponent

*/

#ifndef TIMERVALUERETRIEVER_H

#define TIMERVALUERETRIEVER_H

// INCLUDES

#include <e32base.h>

#include "TimerValues.h"

// FORWARD DECLARATIONS

class CRepository;

// CLASS DECLARATION

/**

 * This class reads timer values from Central Repository, and listens ifi they

 * are changed.

 */

class CTimerValueRetriever : public CActive

	{

public: //enum

		/**

		* Bearer types for which specific default registration expiry durations are supported

		*/

	enum BearerType

		{

		EModemBearer = 0,

		ELanBearer,

		EMaxSupportedBearer

		};

public: // Constructors and destructor

	/**

	 * Creates a CTimerValueRetriever object.

	 *

	 * @return value New CTimerValueRetriever object, ownership is transferred.

	 */

	static CTimerValueRetriever* NewL();

	~CTimerValueRetriever();

public: // From CActive

	void DoCancel();

	void RunL();

	TInt RunError(TInt aError);

public: // New functions

	TTimerValues& TimerValues(BearerType aType);

	/**

	 * Returns the highest T1 value of all the configured timer values

	 */

	TUint HighestT1();

private: // New functions, for internal use

	CTimerValueRetriever();

	void ConstructL();

    /**

	 * Reads the timer values from repository. If they are not found, function

     * leaves.

	 */

    void ReadValuesL();    

	void ListenForChangesL();

private: // Data

	// Provides access to Central Repository, owned.

	CRepository* iRepository;

	TTimerValues iTimerValues[EMaxSupportedBearer];

	// For testing purposes	

#ifdef CPPUNIT_TEST	

	friend class CTimerValueRetriever_Test;	

#endif	

	};

#endif // end of TIMERVALUERETRIEVER_H

// End of File