libastrog_timer.h

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/*
 * This file: libastrog_timer.h is part of the Astrog software library
 * that uses the graphics processing unit (GPU) to accelerate
 * astronomy calculations.
 *
 * Copyright (C) 2007  C. J. Harris, B. J. Mort
 *
 * 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
 */

#include "libastrog_astrog.h"
#include <sys/timeb.h>

namespace astrog {

class Timer {

    public:
        Timer();

        ~Timer();

        void start();
        void stop();
        void reset();
        double get_time();
        double get_error_absolute();
        double get_error_relative();
        double get_error_percentage();
        static double get_grain();

    private:
        static void set_grain();
        static double grain;
        int timer_status;
        double time_elapsed;
        int error_grains;
        struct timeb latest_start;
        struct timeb latest_stop;


};

} // end namespace

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