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annotate src/cutils.c @ 3318:f38b5d63d02d

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[project @ 1999-10-22 01:54:43 by jwe]
author jwe
date Fri, 22 Oct 1999 01:54:43 +0000
parents 092399af4e5d
children 729ad2b6a052
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1 /*
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2
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3 Copyright (C) 1999 John W. Eaton
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4
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5 This file is part of Octave.
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6
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 2, or (at your option) any
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10 later version.
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11
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12 Octave is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, write to the Free
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19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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20
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21 */
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22
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23 #ifdef HAVE_CONFIG_H
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24 #include <config.h>
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25 #endif
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26
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27 #ifdef HAVE_UNISTD_H
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28 #ifdef HAVE_SYS_TYPES_H
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29 #include <sys/types.h>
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30 #endif
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31 #include <unistd.h>
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32 #endif
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33
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34 #include "systime.h"
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35
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36 #ifdef HAVE_POLL_H
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37 #include <poll.h>
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38 #elif HAVE_SYS_POLL_H
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39 #include <sys/poll.h>
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40 #endif
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41
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42 static void
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43 do_octave_usleep (unsigned int useconds)
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44 {
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45 #if defined (HAVE_USLEEP)
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46
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47 usleep (useconds);
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48
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49 #elif defined (HAVE_SELECT)
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50
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51 struct timeval delay;
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52
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53 delay.tv_sec = 0;
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54 delay.tv_usec = useconds;
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55
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56 select (0, 0, 0, 0, &delay);
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57
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58 #elif defined (HAVE_POLL)
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59
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60 struct pollfd pfd;
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61 int delay = useconds / 1000;
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62
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63 if (delay > 0)
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64 poll (&fd, 0, delay);
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65
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66 #endif
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67 }
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68
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69 void
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70 octave_usleep (unsigned int useconds)
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71 {
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72 unsigned int sec = useconds / 1000000;
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73 unsigned int usec = useconds % 1000000;
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74
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75 if (sec > 0)
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76 sleep (sec);
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77
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78 do_octave_usleep (usec);
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79 }
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80
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81 /*
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82 ;;; Local Variables: ***
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83 ;;; mode: C++ ***
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84 ;;; End: ***
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85 */