nptl/pt-sigwait.c

   1 /* Copyright (C) 2002 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #include <errno.h>
  21 #include <unistd.h>
  22 #include <signal.h>
  23 #include <sysdep.h>
  24 #include "pthreadP.h"
  25
  26
  27 int
  28 sigwait (const sigset_t *set, int *sig)
  29 {
  30   int result;
  31   int oldtype;
  32
  33   CANCEL_ASYNC (oldtype);
  34
  35 #ifdef INTERNAL_SYSCALL
  36   result = INTERNAL_SYSCALL (rt_sigtimedwait, 4, set, NULL, NULL, _NSIG / 8);
  37   if (! INTERNAL_SYSCALL_ERROR_P (result))
  38     {
  39       *sig = result;
  40       result = 0;
  41     }
  42   else
  43     result = INTERNAL_SYSCALL_ERRNO (result);
  44 #elif defined INLINE_SYSCALL
  45   result = INLINE_SYSCALL (rt_sigtimedwait, 4, set, NULL, NULL, _NSIG / 8);
  46   if (result != -1)
  47     {
  48       *sig = result;
  49       result = 0;
  50     }
  51   else
  52     result = errno;
  53 #else
  54   result = __sigwait (set, sig);
  55 #endif
  56
  57   CANCEL_RESET (oldtype);
  58
  59   return result;
  60 }