---

time.H

Go to the documentation of this file.

/*
 * Copyright 1997, Brown University, Providence, RI.
 * 
 *                         All Rights Reserved
 * 
 * Permission to use, copy, modify, and distribute this software and its
 * documentation for any purpose other than its incorporation into a
 * commercial product is hereby granted without fee, provided that the
 * above copyright notice appear in all copies and that both that
 * copyright notice and this permission notice appear in supporting
 * documentation, and that the name of Brown University not be used in
 * advertising or publicity pertaining to distribution of the software
 * without specific, written prior permission.
 * 
 * BROWN UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ANY
 * PARTICULAR PURPOSE.  IN NO EVENT SHALL BROWN UNIVERSITY BE LIABLE FOR
 * ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
#ifndef GLUE_TIME_H
#define GLUE_TIME_H

#ifdef WIN32
#   include <windows.h>
#   include <winbase.h>

   inline double the_time() {
       return double(GetTickCount())/1000.0;
   }

   inline void
   fsleep(double dur)
   {
      Sleep(dur * 1e3);
   }

#else
#include <unistd.h>   // for fd_set
#include <sys/time.h>

   inline double the_time() {
       struct timeval ts; struct timezone tz;
       gettimeofday(&ts, &tz);
       return (double)(ts.tv_sec + ts.tv_usec/1e6);
   }

   inline void
   fsleep(double dur)
   {
      struct timeval timeout;
      double         sleep_time = dur * 1e6;
      timeout.tv_sec  = 0;
      // XXX - there should be a better way to avoid warnings
#  if defined(sgi) || defined(__CYGWIN__) || defined(__APPLE__) || defined(MACOSX)
      timeout.tv_usec = (long) sleep_time;
#  else
#    ifdef linux
      timeout.tv_usec = (time_t) sleep_time;
#    else
      timeout.tv_usec = (suseconds_t) sleep_time;
#    endif
#  endif
      select(FD_SETSIZE, 0, 0, 0, &timeout);
   }
#endif


#endif

---