demos/spiv/cpu_timer.h

   1 /*****************************************************************************
   2  * This file is part of gfxprim library.                                     *
   3  *                                                                           *
   4  * Gfxprim is free software; you can redistribute it and/or                  *
   5  * modify it under the terms of the GNU Lesser General Public                *
   6  * License as published by the Free Software Foundation; either              *
   7  * version 2.1 of the License, or (at your option) any later version.        *
   8  *                                                                           *
   9  * Gfxprim is distributed in the hope that it will be useful,                *
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of            *
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU         *
  12  * Lesser General Public License for more details.                           *
  13  *                                                                           *
  14  * You should have received a copy of the GNU Lesser General Public          *
  15  * License along with gfxprim; if not, write to the Free Software            *
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor,                        *
  17  * Boston, MA  02110-1301  USA                                               *
  18  *                                                                           *
  19  * Copyright (C) 2009-2012 Cyril Hrubis <metan@ucw.cz>                       *
  20  *                                                                           *
  21  *****************************************************************************/
  22
  23  /*
  24
  25    Simple timers to count and print cpu time spend in particular codepath.
  26
  27   */
  28
  29 #ifndef __CPU_TIMER_H__
  30 #define __CPU_TIMER_H__
  31
  32 #include <time.h>
  33
  34 struct cpu_timer {
  35         struct timespec t_cpu_start;
  36         struct timespec t_cpu_stop;
  37         struct timespec t_real_start;
  38         struct timespec t_real_stop;
  39         const char *name;
  40 };
  41
  42 /*
  43  * Enable/disable all timers.
  44  */
  45 void cpu_timer_switch(int enable);
  46
  47 /*
  48  * Inialize cpu timer.
  49  */
  50 void cpu_timer_start(struct cpu_timer *self, const char *name);
  51
  52 /*
  53  * Stops cpu timer and prints result.
  54  */
  55 void cpu_timer_stop(struct cpu_timer *self);
  56
  57 #endif /* __CPU_TIMER_H__ */