1 /* gettime -- get the system clock 2 Copyright (C) 2002, 2004, 2005 Free Software Foundation, Inc. 3 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) 7 any later version. 8 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. 13 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. */ 17 18 /* Written by Paul Eggert. */ 19 20 #ifdef HAVE_CONFIG_H 21 # include <config.h> 22 #endif 23 24 #include "timespec.h" 25 26 /* Get the system time into *TS. */ 27 28 void 29 gettime (struct timespec *ts) 30 { 31 #if HAVE_NANOTIME 32 nanotime (ts); 33 #else 34 35 # if defined CLOCK_REALTIME && HAVE_CLOCK_GETTIME 36 if (clock_gettime (CLOCK_REALTIME, ts) == 0) 37 return; 38 # endif 39 40 # if HAVE_GETTIMEOFDAY 41 { 42 struct timeval tv; 43 gettimeofday (&tv, NULL); 44 ts->tv_sec = tv.tv_sec; 45 ts->tv_nsec = tv.tv_usec * 1000; 46 } 47 # else 48 ts->tv_sec = time (NULL); 49 ts->tv_nsec = 0; 50 # endif 51 52 #endif 53 } 54