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81 lines
2.2 KiB
C
81 lines
2.2 KiB
C
/* Time-triggered process termination.
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Copyright (C) 2016-2023 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <support/xthread.h>
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#include <support/xsignal.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <support/check.h>
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#include <support/support.h>
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#include <time.h>
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#include <unistd.h>
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struct delayed_exit_request
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{
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void (*exitfunc) (int);
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int seconds;
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};
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static void *
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delayed_exit_thread (void *closure)
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{
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struct delayed_exit_request *request = closure;
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void (*exitfunc) (int) = request->exitfunc;
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struct timespec delay = { request->seconds, 0 };
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struct timespec remaining = { 0 };
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free (request);
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if (nanosleep (&delay, &remaining) != 0)
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FAIL_EXIT1 ("nanosleep: %m");
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/* Exit the process successfully. */
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exitfunc (0);
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return NULL;
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}
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static void
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delayed_exit_1 (int seconds, void (*exitfunc) (int))
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{
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/* Create the new thread with all signals blocked. */
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sigset_t all_blocked;
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sigfillset (&all_blocked);
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sigset_t old_set;
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xpthread_sigmask (SIG_SETMASK, &all_blocked, &old_set);
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struct delayed_exit_request *request = xmalloc (sizeof (*request));
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request->seconds = seconds;
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request->exitfunc = exitfunc;
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/* Create a detached thread. */
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pthread_t thr = xpthread_create (NULL, delayed_exit_thread, request);
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xpthread_detach (thr);
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/* Restore the original signal mask. */
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xpthread_sigmask (SIG_SETMASK, &old_set, NULL);
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}
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void
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delayed_exit (int seconds)
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{
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delayed_exit_1 (seconds, exit);
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}
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void
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delayed__exit (int seconds)
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{
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delayed_exit_1 (seconds, _exit);
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}
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