sysdeps/unix/sysv/linux/sigtimedwait.c

   1 /* Copyright (C) 1997, 1998, 2000 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 <signal.h>
  21
  22 #include <sysdep.h>
  23 #include <sys/syscall.h>
  24 #include <bp-checks.h>
  25
  26 #ifdef __NR_rt_sigtimedwait
  27 extern int __syscall_rt_sigtimedwait (const sigset_t *__unbounded, siginfo_t *__unbounded,
  28                                       const struct timespec *__unbounded, size_t);
  29
  30
  31 /* Return any pending signal or wait for one for the given time.  */
  32 int
  33 __sigtimedwait (set, info, timeout)
  34      const sigset_t *set;
  35      siginfo_t *info;
  36      const struct timespec *timeout;
  37 {
  38   /* XXX The size argument hopefully will have to be changed to the
  39      real size of the user-level sigset_t.  */
  40   return INLINE_SYSCALL (rt_sigtimedwait, 4, CHECK_SIGSET (set),
  41                          CHECK_1 (info), timeout, _NSIG / 8);
  42 }
  43 weak_alias (__sigtimedwait, sigtimedwait)
  44 #else
  45 # include <sysdeps/generic/sigtimedwait.c>
  46 #endif