1/* Copyright (C) 2003-2021 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
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 <https://www.gnu.org/licenses/>. */
18
19#include <errno.h>
20#include <stdlib.h>
21#include <time.h>
22#include <sysdep.h>
23#include "kernel-posix-timers.h"
24
25
26#ifdef timer_delete_alias
27# define timer_delete timer_delete_alias
28#endif
29
30
31int
32timer_delete (timer_t timerid)
33{
34#undef timer_delete
35 kernel_timer_t ktimerid = timerid_to_kernel_timer (timerid);
36 int res = INLINE_SYSCALL_CALL (timer_delete, ktimerid);
37
38 if (res == 0)
39 {
40 if (timer_is_sigev_thread (timerid))
41 {
42 struct timer *kt = timerid_to_timer (timerid);
43
44 /* Remove the timer from the list. */
45 pthread_mutex_lock (&__active_timer_sigev_thread_lock);
46 if (__active_timer_sigev_thread == kt)
47 __active_timer_sigev_thread = kt->next;
48 else
49 {
50 struct timer *prevp = __active_timer_sigev_thread;
51 while (prevp->next != NULL)
52 if (prevp->next == kt)
53 {
54 prevp->next = kt->next;
55 break;
56 }
57 else
58 prevp = prevp->next;
59 }
60 pthread_mutex_unlock (&__active_timer_sigev_thread_lock);
61
62 free (kt);
63 }
64
65 return 0;
66 }
67
68 /* The kernel timer is not known or something else bad happened.
69 Return the error. */
70 return -1;
71}
72