/* Copyright (C) 1992-2018 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 <signal.h>

#include <time.h>

#include <unistd.h>

#include <mach.h>

/* Make the process sleep for SECONDS seconds, or until a signal arrives

   and is not ignored.  The function returns the number of seconds less

   than SECONDS which it actually slept (zero if it slept the full time).

   There is no return value to indicate error, but if `sleep' returns

   SECONDS, it probably didn't work.  */

unsigned int

__sleep (unsigned int seconds)

{

  time_t before, after;

  mach_port_t recv;

  recv = __mach_reply_port ();

  before = time ((time_t *) NULL);

  (void) __mach_msg (NULL, MACH_RCV_MSG|MACH_RCV_TIMEOUT|MACH_RCV_INTERRUPT,

		     0, 0, recv, seconds * 1000, MACH_PORT_NULL);

  after = time ((time_t *) NULL);

  __mach_port_destroy (__mach_task_self (), recv);

  return seconds - (after - before);

}

weak_alias (__sleep, sleep)