ocaml/otherlibs/win32unix/gettimeofday.c

35 lines
1.3 KiB
C

/***********************************************************************/
/* */
/* Objective Caml */
/* */
/* Xavier Leroy, projet Cristal, INRIA Rocquencourt */
/* */
/* Copyright 1996 Institut National de Recherche en Informatique et */
/* en Automatique. All rights reserved. This file is distributed */
/* under the terms of the GNU Library General Public License. */
/* */
/***********************************************************************/
/* $Id$ */
#include <mlvalues.h>
#include <alloc.h>
#include <time.h>
#include "unixsupport.h"
static time_t initial_time = 0; /* 0 means uninitialized */
static DWORD initial_tickcount;
CAMLprim value unix_gettimeofday(value unit)
{
if (initial_time == 0) {
initial_tickcount = GetTickCount();
initial_time = time(NULL);
return copy_double((double) initial_time);
} else {
return copy_double(initial_time +
(GetTickCount() - initial_tickcount) * 1e-3);
}
}