sleep.c

cygwin, 著名的在win32下模拟unix操作系统的东东

/* This is file sleep.c */
/*
** Copyright (C) 1991 DJ Delorie
**
** This file is distributed under the terms listed in the document
** "copying.dj".
** A copy of "copying.dj" should accompany this file; if not, a copy
** should be available from where this file was obtained.  This file
** may not be distributed without a verbatim copy of "copying.dj".
**
** This file is distributed WITHOUT ANY WARRANTY; without even the implied
** warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*/


sleep(unsigned int seconds)
{
  long tnow, tthen;
  time(&tnow);
  tthen = tnow + seconds;
  while (1)
  {
    time(&tnow);
    if (tnow >= tthen)
      return;
  }
}