/* sem_timedwait -- wait on a semaphore with timeout.

   Copyright (C) 2003-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, see

   <http://www.gnu.org/licenses/>.  */

#include "sem_waitcommon.c"

/* This is in a separate file because because sem_timedwait is only provided

   if __USE_XOPEN2K is defined.  */

int

sem_timedwait (sem_t *sem, const struct timespec *abstime)

{

  if (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000)

    {

      __set_errno (EINVAL);

      return -1;

    }

  /* Check sem_wait.c for a more detailed explanation why it is required.  */

  __pthread_testcancel ();

  if (__new_sem_wait_fast ((struct new_sem *) sem, 0) == 0)

    return 0;

  else

    return __new_sem_wait_slow((struct new_sem *) sem, abstime);

}