1 /* Implementation of the SLEEP intrinsic. 2 Copyright (C) 2005-2020 Free Software Foundation, Inc. 3 Contributed by François-Xavier Coudert <coudert@clipper.ens.fr> 4 5 This file is part of the GNU Fortran 95 runtime library (libgfortran). 6 7 Libgfortran is free software; you can redistribute it and/or 8 modify it under the terms of the GNU General Public 9 License as published by the Free Software Foundation; either 10 version 3 of the License, or (at your option) any later version. 11 12 Libgfortran is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 Under Section 7 of GPL version 3, you are granted additional 18 permissions described in the GCC Runtime Library Exception, version 19 3.1, as published by the Free Software Foundation. 20 21 You should have received a copy of the GNU General Public License and 22 a copy of the GCC Runtime Library Exception along with this program; 23 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 24 <http://www.gnu.org/licenses/>. */ 25 26 #include "libgfortran.h" 27 28 #ifdef HAVE_UNISTD_H 29 #include <unistd.h> 30 #endif 31 32 #ifdef __MINGW32__ 33 # include <windows.h> 34 # undef sleep 35 # define sleep(x) Sleep(1000*(x)) 36 # define HAVE_SLEEP 1 37 #endif 38 39 /* SUBROUTINE SLEEP(SECONDS) 40 INTEGER, INTENT(IN) :: SECONDS 41 42 A choice had to be made if SECONDS is negative. For g77, this is 43 equivalent to SLEEP(0). */ 44 45 #ifdef HAVE_SLEEP 46 extern void sleep_i4_sub (GFC_INTEGER_4 *); 47 iexport_proto(sleep_i4_sub); 48 49 void sleep_i4_sub(GFC_INTEGER_4 * seconds)50sleep_i4_sub (GFC_INTEGER_4 *seconds) 51 { 52 sleep (*seconds < 0 ? 0 : (unsigned int) *seconds); 53 } 54 iexport(sleep_i4_sub); 55 56 extern void sleep_i8_sub (GFC_INTEGER_8 *); 57 iexport_proto(sleep_i8_sub); 58 59 void sleep_i8_sub(GFC_INTEGER_8 * seconds)60sleep_i8_sub (GFC_INTEGER_8 *seconds) 61 { 62 sleep (*seconds < 0 ? 0 : (unsigned int) *seconds); 63 } 64 iexport(sleep_i8_sub); 65 #endif 66