1 /* Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc.
2    This file is part of the GNU C Library.
3    Contributed by Kaz Kylheku <kaz@ashi.footprints.net>.
4 
5    The GNU C Library is free software; you can redistribute it and/or
6    modify it under the terms of the GNU Lesser General Public License as
7    published by the Free Software Foundation; either version 2.1 of the
8    License, or (at your option) any later version.
9 
10    The GNU C Library is distributed in the hope that it will be useful,
11    but WITHOUT ANY WARRANTY; without even the implied warranty of
12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13    Lesser General Public License for more details.
14 
15    You should have received a copy of the GNU Lesser General Public
16    License along with the GNU C Library; see the file COPYING.LIB.  If
17    not, see <http://www.gnu.org/licenses/>.  */
18 
19 #include <errno.h>
20 #include <pthread.h>
21 #include <time.h>
22 
23 #include "posix-timer.h"
24 
25 
26 /* Get expiration overrun for timer TIMERID.  */
27 int
timer_getoverrun(timerid)28 timer_getoverrun (timerid)
29      timer_t timerid;
30 {
31   struct timer_node *timer;
32   int retval = -1;
33 
34   pthread_mutex_lock (&__timer_mutex);
35 
36   if (! timer_valid (timer = timer_id2ptr (timerid)))
37     __set_errno (EINVAL);
38   else
39     retval = timer->overrun_count;
40 
41   pthread_mutex_unlock (&__timer_mutex);
42 
43   return retval;
44 }
45