src/test/timer.c

   1 /*****************************************************************************
   2  * timer.c: Test for timer API
   3  *****************************************************************************
   4  * Copyright (C) 2009 Rémi Denis-Courmont
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  19  *****************************************************************************/
  20
  21 #ifdef HAVE_CONFIG_H
  22 # include "config.h"
  23 #endif
  24
  25 #include <vlc_common.h>
  26
  27 #include <stdio.h>
  28 #include <stdlib.h>
  29 #undef NDEBUG
  30 #include <assert.h>
  31
  32 struct timer_data
  33 {
  34     vlc_timer_t timer;
  35     vlc_mutex_t lock;
  36     unsigned count;
  37 };
  38
  39 static void callback (void *ptr)
  40 {
  41     struct timer_data *data = ptr;
  42
  43     vlc_mutex_lock (&data->lock);
  44     data->count += 1 + vlc_timer_getoverrun (data->timer);
  45     vlc_mutex_unlock (&data->lock);
  46 }
  47
  48
  49 int main (void)
  50 {
  51     struct timer_data data;
  52     int val;
  53
  54     vlc_mutex_init (&data.lock);
  55     data.count = 0;
  56
  57     val = vlc_timer_create (&data.timer, callback, &data);
  58     assert (val == 0);
  59
  60     /* Relative timer */
  61     vlc_timer_schedule (data.timer, false, 1, CLOCK_FREQ / 10);
  62     msleep (CLOCK_FREQ);
  63     vlc_mutex_lock (&data.lock);
  64     data.count += vlc_timer_getoverrun (data.timer);
  65     printf ("Count = %u\n", data.count);
  66     assert (data.count >= 10);
  67     data.count = 0;
  68     vlc_mutex_unlock (&data.lock);
  69     vlc_timer_schedule (data.timer, false, 0, 0);
  70
  71     /* Absolute timer */
  72     mtime_t now = mdate ();
  73
  74     vlc_timer_schedule (data.timer, true, now, CLOCK_FREQ / 10);
  75     msleep (CLOCK_FREQ);
  76     vlc_mutex_lock (&data.lock);
  77     data.count += vlc_timer_getoverrun (data.timer);
  78     printf ("Count = %u\n", data.count);
  79     assert (data.count >= 10);
  80     vlc_mutex_unlock (&data.lock);
  81
  82     vlc_timer_destroy (data.timer);
  83     vlc_mutex_destroy (&data.lock);
  84
  85     return 0;
  86 }