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. */ |
26 | int |
27 | timer_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 | |