sysdeps/unix/common/pause.c

   1 /* Copyright (C) 1991, 1996 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 Library General Public License as
   6    published by the Free Software Foundation; either version 2 of the
   7    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    Library General Public License for more details.
  13
  14    You should have received a copy of the GNU Library General Public
  15    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  16    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17    Boston, MA 02111-1307, USA.  */
  18
  19 #include <signal.h>
  20 #include <unistd.h>
  21
  22
  23 /* Suspend the process until a signal arrives.
  24    This always returns -1 and sets errno to EINTR.  */
  25
  26 int
  27 __libc_pause (void)
  28 {
  29   return __sigpause (__sigblock (0), 0);
  30 }
  31 weak_alias (__libc_pause, pause)