sysdeps/unix/sysv/linux/sigprocmask.c

   1 /* Copyright (C) 1997-2020 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    <https://www.gnu.org/licenses/>.  */
  17
  18 #include <signal.h>
  19 #include <nptl/pthreadP.h>              /* SIGCANCEL, SIGSETXID */
  20
  21 /* Get and/or change the set of blocked signals.  */
  22 int
  23 __sigprocmask (int how, const sigset_t *set, sigset_t *oset)
  24 {
  25   int result = __pthread_sigmask (how, set, oset);
  26   if (result == 0)
  27     return 0;
  28   __set_errno (result);
  29   return -1;
  30 }
  31 libc_hidden_def (__sigprocmask)
  32 weak_alias (__sigprocmask, sigprocmask)