gtk2/gdk/capture/sp-clock.c

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/* sp-clock.c
*
* Copyright © 2016 Christian Hergert <chergert@redhat.com>
*
* This file 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 of the License, or (at your option)
* any later version.
*
* This file 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 General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "sp-clock.h"
gint sp_clock = -1;
void
sp_clock_init (void)
{
static const gint clock_ids[] = {
CLOCK_MONOTONIC_RAW,
CLOCK_MONOTONIC_COARSE,
CLOCK_MONOTONIC,
CLOCK_REALTIME_COARSE,
CLOCK_REALTIME,
};
guint i;
if (sp_clock != -1)
return;
for (i = 0; i < G_N_ELEMENTS (clock_ids); i++)
{
struct timespec ts;
int clock_id = clock_ids [i];
if (0 == clock_gettime (clock_id, &ts))
{
sp_clock = clock_id;
return;
}
}
g_assert_not_reached ();
}