support/xpthread_sigmask.c

   1 /* pthread_sigmask with error checking.
   2    Copyright (C) 2016-2017 Free Software Foundation, Inc.
   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
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <support/xsignal.h>
  20 #include <support/support.h>
  21
  22 #include <unistd.h>
  23
  24 void
  25 xpthread_sigmask (int how, const sigset_t *set, sigset_t *oldset)
  26 {
  27   if (pthread_sigmask (how, set, oldset) != 0)
  28     {
  29       write_message ("error: pthread_setmask failed\n");
  30       /* Do not use exit because pthread_sigmask can be called from a
  31          signal handler.  */
  32       _exit (1);
  33     }
  34 }