1 /* gettime -- get the system clock
2 Copyright (C) 2002, 2004, 2005 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2, or (at your option)
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 Foundation,
16 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
18 /* Written by Paul Eggert. */
26 /* Get the system time into *TS. */
29 gettime (struct timespec *ts)
35 # if defined CLOCK_REALTIME && HAVE_CLOCK_GETTIME
36 if (clock_gettime (CLOCK_REALTIME, ts) == 0)
40 # if HAVE_GETTIMEOFDAY
43 gettimeofday (&tv, NULL);
44 ts->tv_sec = tv.tv_sec;
45 ts->tv_nsec = tv.tv_usec * 1000;
49 # ifndef OK_TO_USE_1S_CLOCK
50 # error "Only 1-second nominal clock resolution found. Is that intended?" \
51 "If so, compile with the -DOK_TO_USE_1S_CLOCK option."
53 ts->tv_sec = time (NULL);