/* C11 threads thread sleep implementation.

   Copyright (C) 2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   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 <time.h>

#include <sysdep-cancel.h>

#include "thrd_priv.h"

int

thrd_sleep (const struct timespec* time_point, struct timespec* remaining)

{

  INTERNAL_SYSCALL_DECL (err);

  int ret = INTERNAL_SYSCALL_CANCEL (nanosleep, err, time_point, remaining);

  if (INTERNAL_SYSCALL_ERROR_P (ret, err))

    {

      /* C11 states thrd_sleep function returns -1 if it has been interrupted

	 by a signal, or a negative value if it fails.  */

      ret = INTERNAL_SYSCALL_ERRNO (ret, err);

      if (ret == EINTR)

	return -1;

      return -2;

    }

  return 0;

}