/*

* Copyright (c) 2010 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: 

*

*/

#include "cpixtimetools.h"

namespace Cpt

{

    /****************************************************

     *

     *  TimeExc

     *

     */

    const char * TimeExc::what() const throw()

    {

        return "Could not get timestamp (gettimeofday)";

    }

    /****************************************************

     *

     *  GetTimeOfDay

     *

     */

    void GetTimeOfDay(struct timeval & tv)

    {

        int

            result = gettimeofday(&tv,

                                  NULL);

        if (result != 0)

            {

                throw TimeExc();

            }

    }

    long GetTimeOfDay()

    {

        struct timeval

            now;

        GetTimeOfDay(now);

        return now.tv_sec;

    }

    /****************************************************

     *

     *  StopperWatch

     *

     */

    StopperWatch::StopperWatch()

    {

        reset();

    }

    long StopperWatch::elapsedMSecs() const

    {

        enum 

        {

            MSECS_IN_SEC  = 1000,

            USECS_IN_MSEC = 1000

        };

        struct timeval

            now;

        GetTimeOfDay(now);

        long

            rv = (now.tv_sec - timestamp_.tv_sec) * MSECS_IN_SEC

            + (now.tv_usec - timestamp_.tv_usec) / USECS_IN_MSEC;

        return rv;

    }

    void StopperWatch::reset()

    {

        GetTimeOfDay(timestamp_);

    }

}