lib/sleep.c

   1 /* Pausing execution of the current thread.
   2    Copyright (C) 2007 Free Software Foundation, Inc.
   3    Written by Bruno Haible <bruno@clisp.org>, 2007.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 2, or (at your option)
   8    any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program; if not, write to the Free Software Foundation,
  17    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
  18
  19 #include <config.h>
  20
  21 /* Specification.  */
  22 #include <unistd.h>
  23
  24 #if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
  25
  26 # define WIN32_LEAN_AND_MEAN  /* avoid including junk */
  27 # include <windows.h>
  28
  29 unsigned int
  30 sleep (unsigned int seconds)
  31 {
  32   unsigned int remaining;
  33
  34   /* Sleep for 1 second many times, because
  35        1. Sleep is not interruptiple by Ctrl-C,
  36        2. we want to avoid arithmetic overflow while multiplying with 1000.  */
  37   for (remaining = seconds; remaining > 0; remaining--)
  38     Sleep (1000);
  39
  40   return remaining;
  41 }
  42
  43 #else
  44
  45  #error "Please port gnulib sleep.c to your platform, possibly using usleep() or select(), then report this to bug-gnulib."
  46
  47 #endif