xref: /netbsd-src/external/gpl2/xcvs/dist/lib/gettime.c (revision 5a6c14c844c4c665da5632061aebde7bb2cb5766)
1a7c91847Schristos /* gettime -- get the system clock
2a7c91847Schristos    Copyright (C) 2002, 2004, 2005 Free Software Foundation, Inc.
3a7c91847Schristos 
4a7c91847Schristos    This program is free software; you can redistribute it and/or modify
5a7c91847Schristos    it under the terms of the GNU General Public License as published by
6a7c91847Schristos    the Free Software Foundation; either version 2, or (at your option)
7a7c91847Schristos    any later version.
8a7c91847Schristos 
9a7c91847Schristos    This program is distributed in the hope that it will be useful,
10a7c91847Schristos    but WITHOUT ANY WARRANTY; without even the implied warranty of
11a7c91847Schristos    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12a7c91847Schristos    GNU General Public License for more details.
13a7c91847Schristos 
14a7c91847Schristos    You should have received a copy of the GNU General Public License
15a7c91847Schristos    along with this program; if not, write to the Free Software Foundation,
16a7c91847Schristos    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
17*5a6c14c8Schristos #include <sys/cdefs.h>
18*5a6c14c8Schristos __RCSID("$NetBSD: gettime.c,v 1.2 2016/05/17 14:00:09 christos Exp $");
19*5a6c14c8Schristos 
20a7c91847Schristos 
21a7c91847Schristos /* Written by Paul Eggert.  */
22a7c91847Schristos 
23a7c91847Schristos #ifdef HAVE_CONFIG_H
24a7c91847Schristos # include <config.h>
25a7c91847Schristos #endif
26a7c91847Schristos 
27a7c91847Schristos #include "timespec.h"
28a7c91847Schristos 
29a7c91847Schristos /* Get the system time into *TS.  */
30a7c91847Schristos 
31a7c91847Schristos void
gettime(struct timespec * ts)32a7c91847Schristos gettime (struct timespec *ts)
33a7c91847Schristos {
34a7c91847Schristos #if HAVE_NANOTIME
35a7c91847Schristos   nanotime (ts);
36a7c91847Schristos #else
37a7c91847Schristos 
38a7c91847Schristos # if defined CLOCK_REALTIME && HAVE_CLOCK_GETTIME
39a7c91847Schristos   if (clock_gettime (CLOCK_REALTIME, ts) == 0)
40a7c91847Schristos     return;
41a7c91847Schristos # endif
42a7c91847Schristos 
43a7c91847Schristos # if HAVE_GETTIMEOFDAY
44a7c91847Schristos   {
45a7c91847Schristos     struct timeval tv;
46a7c91847Schristos     gettimeofday (&tv, NULL);
47a7c91847Schristos     ts->tv_sec = tv.tv_sec;
48a7c91847Schristos     ts->tv_nsec = tv.tv_usec * 1000;
49a7c91847Schristos   }
50a7c91847Schristos # else
51a7c91847Schristos   ts->tv_sec = time (NULL);
52a7c91847Schristos   ts->tv_nsec = 0;
53a7c91847Schristos # endif
54a7c91847Schristos 
55a7c91847Schristos #endif
56a7c91847Schristos }
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