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60 lines
1.4 KiB
C
60 lines
1.4 KiB
C
/* gettime -- get the system clock
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Copyright (C) 2002, 2004 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software Foundation,
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Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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/* Written by Paul Eggert. */
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include "timespec.h"
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/* Get the system time. */
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int
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gettime (struct timespec *ts)
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{
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#if defined CLOCK_REALTIME && HAVE_CLOCK_GETTIME
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if (clock_gettime (CLOCK_REALTIME, ts) == 0)
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return 0;
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#endif
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#if HAVE_GETTIMEOFDAY
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{
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struct timeval tv;
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if (gettimeofday (&tv, 0) == 0)
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{
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ts->tv_sec = tv.tv_sec;
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ts->tv_nsec = tv.tv_usec * 1000;
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return 0;
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}
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}
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#endif
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{
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time_t t = time (0);
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if (t != (time_t) -1)
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{
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ts->tv_sec = t;
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ts->tv_nsec = 0;
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return 0;
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}
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}
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return -1;
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}
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