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timer.cpp

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// $Id$

//**********************************************************************
//                                                                     *
//    Description:   Timer class.  Provides interval and duration      *
//                   timing, both of which can be reset.               *
//                                                                     *
//    Author:        Chris White (whitecf@bcs.org.uk)                  *
//                                                                     *
//    Copyright (C) 2003  Monitor Computing Services Ltd.              *
//                                                                     *
//    This program is free software; you can redistribute it and/or    *
//    modify it under the terms of the GNU General Public License      *
//    as published by the Free Software Foundation; either version 2   *
//    of the License, or any later version.                            *
//                                                                     *
//    This program is distributed in the hope that it will be useful,  *
//    but WITHOUT ANY WARRANTY; without even the implied warranty of   *
//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the    *
//    GNU General Public License for more details.                     *
//                                                                     *
//    You should have received a copy of the GNU General Public        *
//    License (http://www.gnu.org/copyleft/gpl.html) along with this   *
//    program; if not, write to:                                       *
//       The Free Software Foundation Inc.,                            *
//       59 Temple Place - Suite 330,                                  *
//       Boston, MA  02111-1307,                                       *
//       USA.                                                          *
//                                                                     *
//**********************************************************************
//                                                                     *
//    Notes:                                                           *
//                                                                     *
//**********************************************************************

#include <mytrace.h>

#include "timer.h"


using namespace Monitor::Utility;



Timer::Timer()
{
    _USEMYTRACE_("Timer::Timer()")


    restart();
}



Timer::~Timer()
{
    _USEMYTRACE_("Timer::~Timer()")
}



unsigned
Timer::interval()
{
    _USEMYTRACE_("Timer::interval()")


    long    durationTime = long(clock() - intervalTime);

    durationTime *= 1000;
    durationTime /= CLK_TCK;

    return unsigned(durationTime);
}



unsigned
Timer::restartInterval()
{
    _USEMYTRACE_("Timer::restartInterval()")


    unsigned    restartInterval = interval();

    intervalTime = clock();

    return restartInterval;
}



unsigned
Timer::duration()
{
    _USEMYTRACE_("Timer::duration()")


    long    durationTime = long(clock() - startTime);

    durationTime *= 1000;
    durationTime /= CLK_TCK;

    return unsigned(durationTime);
}



unsigned
Timer::restart()
{
    _USEMYTRACE_("Timer::restart()")


    unsigned    restartDuration = duration();

    startTime = intervalTime = clock();

    return restartDuration;
}

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