sysdeps/unix/sysv/linux/sigsuspend.c

   1 /* Copyright (C) 1996-2015 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <http://www.gnu.org/licenses/>.  */
  17
  18 #include <errno.h>
  19 #include <signal.h>
  20 #include <unistd.h>
  21
  22 #include <sysdep-cancel.h>
  23 #include <sys/syscall.h>
  24
  25 /* Change the set of blocked signals to SET,
  26    wait until a signal arrives, and restore the set of blocked signals.  */
  27 int
  28 __sigsuspend (const sigset_t *set)
  29 {
  30   return SYSCALL_CANCEL (rt_sigsuspend, set, _NSIG / 8);
  31 }
  32 libc_hidden_def (__sigsuspend)
  33 weak_alias (__sigsuspend, sigsuspend)
  34 strong_alias (__sigsuspend, __libc_sigsuspend)