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/* Implementation of the SLEEP intrinsic.

   Copyright (C) 2005, 2007, 2009 Free Software Foundation, Inc.

   Contributed by François-Xavier Coudert <coudert@clipper.ens.fr>

This file is part of the GNU Fortran 95 runtime library (libgfortran).

Libgfortran is free software; you can redistribute it and/or

modify it under the terms of the GNU General Public

License as published by the Free Software Foundation; either

version 3 of the License, or (at your option) any later version.

Libgfortran 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 General Public License for more details.

Under Section 7 of GPL version 3, you are granted additional

permissions described in the GCC Runtime Library Exception, version

3.1, as published by the Free Software Foundation.

You should have received a copy of the GNU General Public License and

a copy of the GCC Runtime Library Exception along with this program;

see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see

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

#include "libgfortran.h"

#include <errno.h>

#ifdef HAVE_UNISTD_H

#include <unistd.h>

#endif

#ifdef __MINGW32__

# include <windows.h>

# undef sleep

# define sleep(x) Sleep(1000*(x))

# define HAVE_SLEEP 1

#endif

/* SUBROUTINE SLEEP(SECONDS)

   INTEGER, INTENT(IN) :: SECONDS

   A choice had to be made if SECONDS is negative. For g77, this is

   equivalent to SLEEP(0).  */

#ifdef HAVE_SLEEP

extern void sleep_i4_sub (GFC_INTEGER_4 *);

iexport_proto(sleep_i4_sub);

void

sleep_i4_sub (GFC_INTEGER_4 *seconds)

{

  sleep (*seconds < 0 ? 0 : (unsigned int) *seconds);

}

iexport(sleep_i4_sub);

extern void sleep_i8_sub (GFC_INTEGER_8 *);

iexport_proto(sleep_i8_sub);

void

sleep_i8_sub (GFC_INTEGER_8 *seconds)

{

  sleep (*seconds < 0 ? 0 : (unsigned int) *seconds);

}

iexport(sleep_i8_sub);

#endif