/*

* Copyright (c) 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:  

*

*/

#ifndef PERFMON_POWERLISTENER_H

#define PERFMON_POWERLISTENER_H

// INCLUDES

#include <hwrmpower.h>

#include "perfmon.hrh"

// HWRM reporting interval multiplier

const TInt KSampleIntervalMultiple = 1;

const TInt KReportingDuration = 0;  // Infinite duration

class CPerfMonPowerListener : public CBase, public MHWRMBatteryPowerObserver

    {

public:

    static CPerfMonPowerListener* NewL();

    ~CPerfMonPowerListener();

private:

    CPerfMonPowerListener();

    void ConstructL();

    // Handling central repository max reporting period key

    void GetReportingPeriodL();

    void SetReportingPeriodL(TInt aDuration);

public:

    static TBool IsSupported();

    // Start monitoring power values

    TInt Activate();

    // Stop monitoring power values

    void DeActivate();

    // Get average power since last read.

    TInt GetPower();

    // Maximum power value since measurement started

    inline TInt GetMaxPower()       { return iMaxPower; }

    virtual void PowerMeasurement(TInt aErrCode, CHWRMPower::TBatteryPowerMeasurementData& aMeasurement);

private:

    CHWRMPower*                     iHWRMPower;

    RArray<TInt>                    iPowerBuffer;

    TInt                            iLastPowerAvg;

    TInt                            iMaxPower;

    TInt                            iOriginalMaxReportingPeriod;

    };

#endif