sysdeps/unix/sysv/linux/sigtimedwait.c

   1 /* Copyright (C) 1997, 1998 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 <errno.h>
  20 #include <signal.h>
  21
  22 #include <sysdep.h>
  23 #include <sys/syscall.h>
  24
  25 #ifdef __NR_rt_sigtimedwait
  26 extern int __syscall_rt_sigtimedwait (const sigset_t *, siginfo_t *,
  27                                       const struct timespec *, size_t);
  28
  29
  30 /* Return any pending signal or wait for one for the given time.  */
  31 int
  32 __sigtimedwait (set, info, timeout)
  33      const sigset_t *set;
  34      siginfo_t *info;
  35      const struct timespec *timeout;
  36 {
  37   /* XXX The size argument hopefully will have to be changed to the
  38      real size of the user-level sigset_t.  */
  39   return INLINE_SYSCALL (rt_sigtimedwait, 4, set, info, timeout, _NSIG / 8);
  40 }
  41 weak_alias (__sigtimedwait, sigtimedwait)
  42 #else
  43 # include <sysdeps/generic/sigtimedwait.c>
  44 #endif