1 | /* gettime -- get the system clock |
2 | |
3 | Copyright (C) 2002, 2004-2007, 2009-2019 Free Software Foundation, Inc. |
4 | |
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; either version 3 of the License, or |
8 | (at your option) any later version. |
9 | |
10 | This program is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
13 | GNU General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU General Public License |
16 | along with this program. If not, see <https://www.gnu.org/licenses/>. */ |
17 | |
18 | /* Written by Paul Eggert. */ |
19 | |
20 | #include <config.h> |
21 | |
22 | #include "timespec.h" |
23 | |
24 | #include <sys/time.h> |
25 | |
26 | /* Get the system time into *TS. */ |
27 | |
28 | void |
29 | gettime (struct timespec *ts) |
30 | { |
31 | #if defined CLOCK_REALTIME && HAVE_CLOCK_GETTIME |
32 | clock_gettime (CLOCK_REALTIME, ts); |
33 | #else |
34 | struct timeval tv; |
35 | gettimeofday (&tv, NULL); |
36 | ts->tv_sec = tv.tv_sec; |
37 | ts->tv_nsec = tv.tv_usec * 1000; |
38 | #endif |
39 | } |
40 | |
41 | /* Return the current system time as a struct timespec. */ |
42 | |
43 | struct timespec |
44 | current_timespec (void) |
45 | { |
46 | struct timespec ts; |
47 | gettime (&ts); |
48 | return ts; |
49 | } |
50 | |