cvd/timer.h

/*                       
    This file is part of the CVD Library.

    Copyright (C) 2005 The Authors

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library 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
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 
    51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
*/
// 
// A timer class designed for dealing with timestamps
// CK Nov 2002
//

#ifndef __CVD_TIMER_H
#define __CVD_TIMER_H

struct timeval;

namespace CVD {

class cvd_timer 
{
    public:
        cvd_timer();
        double get_time();

        double conv_ntime(signed long long time);  

        double conv_ntime(const struct timeval& tv);

        double conv_ntime(const double time) const {
            return time - startTime * 1.e-6;
        }

        double reset();                       


    private:
        unsigned long long startTime;
};
 
extern cvd_timer timer;

double get_time_of_day();

 
}

#endif

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