// Copyright (c) 2004-2009 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:

// Header for timer class

// 

//

/**

 @file

*/

#ifndef __LOOPBACKTIMER_H__

#define __LOOPBACKTIMER_H__

#include <e32base.h>

class MTimerCallBack;

NONSHARABLE_CLASS(CLoopbackTimer) : public CActive

	{

public:

	static CLoopbackTimer* NewL(TInt aDuration, MTimerCallBack* aCallback);

	~CLoopbackTimer();

	void Start();

	TBool Running() const;

private:

	CLoopbackTimer(TInt aDuration, MTimerCallBack* aCallback);

	void DoCancel();

	void RunL();

private:

    /** Timer used to control when RunL is called */

	RTimer iTimer;

    /** Timer's duration */

	TInt iDuration;

    /** Class with implementation of MTimerCallBack::TimerCallBack that is called when the timer expires */

	MTimerCallBack* iCallback;

    /** True when the timer is running */

	TBool iRunning;

	};

class MTimerCallBack

	{

public:

	virtual void TimerCallBack() = 0;

	};

#endif // __LOOPBACKTIMER_H__