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sysdeps/posix/pause.c
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Paul Eggert
Update copyright dates with scripts/update-copyrights
02 янв 2026, 00:42
02 янв 2026, 00:42
66f3e92
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/* pause -- suspend the process until a signal arrives. POSIX.1 version. Copyright (C) 2003-2026 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ #include <signal.h> #include <unistd.h> #include <sysdep-cancel.h> #include <sigsetops.h> /* Suspend the process until a signal arrives. This always returns -1 and sets errno to EINTR. */ int __libc_pause (void) { sigset_t set; __sigemptyset (&set); __sigprocmask (SIG_BLOCK, NULL, &set); /* pause is a cancellation point, but so is sigsuspend. So no need for anything special here. */ return __sigsuspend (&set); } weak_alias (__libc_pause, pause)