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c23de0aa | 1 | /* Time-triggered process termination. |
d614a753 | 2 | Copyright (C) 2016-2020 Free Software Foundation, Inc. |
c23de0aa FW |
3 | This file is part of the GNU C Library. |
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 | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the 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; if not, see | |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
c23de0aa FW |
18 | |
19 | #include <support/xthread.h> | |
20 | #include <support/xsignal.h> | |
21 | ||
22 | #include <stdint.h> | |
23 | #include <stdio.h> | |
24 | #include <stdlib.h> | |
039c5a05 | 25 | #include <support/check.h> |
c23de0aa FW |
26 | #include <time.h> |
27 | ||
28 | static void * | |
29 | delayed_exit_thread (void *seconds_as_ptr) | |
30 | { | |
31 | int seconds = (uintptr_t) seconds_as_ptr; | |
32 | struct timespec delay = { seconds, 0 }; | |
33 | struct timespec remaining = { 0 }; | |
34 | if (nanosleep (&delay, &remaining) != 0) | |
039c5a05 | 35 | FAIL_EXIT1 ("nanosleep: %m"); |
c23de0aa FW |
36 | /* Exit the process sucessfully. */ |
37 | exit (0); | |
38 | return NULL; | |
39 | } | |
40 | ||
41 | void | |
42 | delayed_exit (int seconds) | |
43 | { | |
44 | /* Create the new thread with all signals blocked. */ | |
45 | sigset_t all_blocked; | |
46 | sigfillset (&all_blocked); | |
47 | sigset_t old_set; | |
48 | xpthread_sigmask (SIG_SETMASK, &all_blocked, &old_set); | |
49 | /* Create a detached thread. */ | |
50 | pthread_t thr = xpthread_create | |
51 | (NULL, delayed_exit_thread, (void *) (uintptr_t) seconds); | |
52 | xpthread_detach (thr); | |
53 | /* Restore the original signal mask. */ | |
54 | xpthread_sigmask (SIG_SETMASK, &old_set, NULL); | |
55 | } |