/*

* Copyright (c) 2008 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:    Provides high resolution timer services.

*

*/

#ifndef C_CDTMFHIGHRESTIMER_H

#define C_CDTMFHIGHRESTIMER_H

#include <e32base.h>

/**

 *  Provides high resolution timer services.

 *

 *  @lib mmccdtmfplformat.dll

 *  @since S60 v3.2

 */

class CDtmfHighResTimer : public CTimer

    {

public:

    /**

     * Two-phased constructor.

     * @param aPriority     Active object priority

     */

    static CDtmfHighResTimer* NewL( TInt aPriority );

    /**

     * Two-phased constructor.

     * @param aPriority     Active object priority

     */

    static CDtmfHighResTimer* NewLC( TInt aPriority );

    /**

     * Destructor.

     */

    virtual ~CDtmfHighResTimer();

    /**

     * Starts generating periodic events.

     *

     * @since S60 v3.2

     * @param aDelay        The delay from the Start() function to the 

     *                      generation of the first event, in microseconds.

     * @param anInterval    The interval between events generated after the

     *                      initial delay, in microseconds. 

     * @param aCallBack     A callback specifying a function to be called when

     *                      the CPeriodic is scheduled after a timer event.

     */

    void Start( TTimeIntervalMicroSeconds32 aDelay,

        TTimeIntervalMicroSeconds32 anInterval, TCallBack aCallBack );

protected:

// from base class CActive

    void RunL();

private:

    CDtmfHighResTimer( TInt aPriority );

    void ConstructL();

private: // data

    /**

     * Time intarval for periodic events.

     */

	TTimeIntervalMicroSeconds32 iInterval;

    /**

     * Callback to call when timer event occurs.

     */

	TCallBack iCallBack;

    };

#endif // C_CDTMFHIGHRESTIMER_H