2 * reactos time handling functions emulation of libcaptive
3 * Copyright (C) 2002 Jan Kratochvil <project-captive@jankratochvil.net>
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; exactly version 2 of June 1991 is required
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 #include "reactos/ddk/kefuncs.h" /* self */
23 #include <glib/gmessages.h>
27 /* This file is based on 'wine/dlls/ntdll/time.c' */
30 /* 1601 to 1970 is 369 years plus 89 leap days */
31 #define SECS_1601_TO_1970 ((369*365+89)*G_GINT64_CONSTANT(86400))
36 * @CurrentTime: Returns the current time.
37 * %NULL pointer value is forbidden.
39 * Returns the number of passed 100ns (1e-7) intervals from 1 Jan 1601.
41 VOID KeQuerySystemTime(PLARGE_INTEGER CurrentTime)
46 g_return_if_fail(CurrentTime!=NULL);
49 &tv, /* tv; timeval */
50 NULL); /* tz; timezone */
53 CurrentTime->QuadPart=(tv.tv_sec+SECS_1601_TO_1970)*G_GINT64_CONSTANT(10000000)+tv.tv_usec*10;