1 | /* Copyright (C) 2003-2017 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 <http://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 | |
31 | int |
32 | timer_delete (timer_t timerid) |
33 | { |
34 | #undef timer_delete |
35 | struct timer *kt = (struct timer *) timerid; |
36 | |
37 | /* Delete the kernel timer object. */ |
38 | int res = INLINE_SYSCALL (timer_delete, 1, kt->ktimerid); |
39 | |
40 | if (res == 0) |
41 | { |
42 | if (kt->sigev_notify == SIGEV_THREAD) |
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 | |
63 | /* Free the memory. */ |
64 | (void) free (kt); |
65 | |
66 | return 0; |
67 | } |
68 | |
69 | /* The kernel timer is not known or something else bad happened. |
70 | Return the error. */ |
71 | return -1; |
72 | } |
73 |