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1/* Copyright (C) 2000-2019 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 <assert.h>
20#include <errno.h>
21#include <pthread.h>
22#include <time.h>
23
24#include "posix-timer.h"
25
26
27/* Delete timer TIMERID. */
28int
29timer_delete (timer_t timerid)
30{
31 struct timer_node *timer;
32 int retval = -1;
33
34 pthread_mutex_lock (&__timer_mutex);
35
36 timer = timer_id2ptr (timerid);
37 if (! timer_valid (timer))
38 /* Invalid timer ID or the timer is not in use. */
39 __set_errno (EINVAL);
40 else
41 {
42 if (timer->armed && timer->thread != NULL)
43 {
44 struct thread_node *thread = timer->thread;
45 assert (thread != NULL);
46
47 /* If thread is cancelled while waiting for handler to terminate,
48 the mutex is unlocked and timer_delete is aborted. */
49 pthread_cleanup_push (__timer_mutex_cancel_handler, &__timer_mutex);
50
51 /* If timer is currently being serviced, wait for it to finish. */
52 while (thread->current_timer == timer)
53 pthread_cond_wait (&thread->cond, &__timer_mutex);
54
55 pthread_cleanup_pop (0);
56 }
57
58 /* Remove timer from whatever queue it may be on and deallocate it. */
59 timer->inuse = TIMER_DELETED;
60 list_unlink_ip (&timer->links);
61 timer_delref (timer);
62 retval = 0;
63 }
64
65 pthread_mutex_unlock (&__timer_mutex);
66
67 return retval;
68}
69

Warning: That file was not part of the compilation database. It may have many parsing errors.