sysdeps/mach/hurd/sigpending.c

   1 /* Copyright (C) 1991-2015 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 <stddef.h>
  20 #include <hurd.h>
  21 #include <hurd/signal.h>
  22
  23
  24 /* Store in SET all signals that are blocked and pending.  */
  25 /* XXX should be __sigpending ? */
  26 int
  27 sigpending (set)
  28      sigset_t *set;
  29 {
  30   struct hurd_sigstate *ss;
  31   sigset_t pending;
  32
  33   if (set == NULL)
  34     {
  35       errno = EINVAL;
  36       return -1;
  37     }
  38
  39   ss = _hurd_self_sigstate ();
  40   __spin_lock (&ss->lock);
  41   pending = ss->pending;
  42   __spin_unlock (&ss->lock);
  43
  44   *set = pending;
  45   return 0;
  46 }