/*
* Copyright (c) 2005-2009 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 CPOSCALLBACKTIMER_H
#define CPOSCALLBACKTIMER_H

//  INCLUDES
#include <e32base.h>

// CLASS DECLARATION

/**
*    Active object implementing a timeout handler. Used to cancel position
*    requests that has not completed before the timeout value has expired.
*/
class CPosCallbackTimer : public CTimer
    {
    public:  // Constructors and destructor
        static CPosCallbackTimer* NewL(TCallBack& aCallBack);
        virtual ~CPosCallbackTimer();

    public: // New functions
        void StartTimer(const TTimeIntervalMicroSeconds& aTimeout);
        void ExtendTimeout(const TTimeIntervalMicroSeconds& aAdditionalTime);
        TInt Status();

    protected:
        TBool NextRound();
        
        //From CActive
        void RunL();
        TInt RunError(TInt aError);

    private:
        CPosCallbackTimer(TCallBack& aCallBack);
        void ConstructL();
        CPosCallbackTimer( const CPosCallbackTimer& );
        CPosCallbackTimer& operator= ( const CPosCallbackTimer& );

    private:    // Data
        TCallBack                   iTimeoutCallBack; 
        TUint                       iNumInternalRounds;
        TTimeIntervalMicroSeconds32 iTimeOut;
    };

#endif      // CPOSCALLBACKTIMER_H

// End of File