sysdeps/mach/hurd/sigpending.c

   1 /* Copyright (C) 1991, 1993, 1994, 1995, 1997 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, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 #include <errno.h>
  20 #include <stddef.h>
  21 #include <hurd.h>
  22 #include <hurd/signal.h>
  23
  24
  25 /* Store in SET all signals that are blocked and pending.  */
  26 /* XXX should be __sigpending ? */
  27 int
  28 sigpending (set)
  29      sigset_t *set;
  30 {
  31   struct hurd_sigstate *ss;
  32   sigset_t pending;
  33
  34   if (set == NULL)
  35     {
  36       errno = EINVAL;
  37       return -1;
  38     }
  39
  40   ss = _hurd_self_sigstate ();
  41   __spin_lock (&ss->lock);
  42   pending = ss->pending;
  43   __spin_unlock (&ss->lock);
  44
  45   *set = pending;
  46   return 0;
  47 }