1/* Copyright (C) 2000-2022 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public License as
6 published by the Free Software Foundation; either version 2.1 of the
7 License, or (at your option) any later version.
8
9 The GNU C Library 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 the GNU C Library; see the file COPYING.LIB. If
16 not, see <https://www.gnu.org/licenses/>. */
17
18#include <errno.h>
19#include <pthread.h>
20#include <time.h>
21
22#include "posix-timer.h"
23
24
25/* Get expiration overrun for timer TIMERID. */
26int
27timer_getoverrun (timer_t timerid)
28{
29 struct timer_node *timer;
30 int retval = -1;
31
32 pthread_mutex_lock (mutex: &__timer_mutex);
33
34 if (! timer_valid (timer: timer = timer_id2ptr (timerid)))
35 __set_errno (EINVAL);
36 else
37 retval = timer->overrun_count;
38
39 pthread_mutex_unlock (mutex: &__timer_mutex);
40
41 return retval;
42}
43

source code of glibc/rt/timer_getoverr.c