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/* Copyright (C) 2008 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by David Bartley <dtbartle@csclub.uwaterloo.ca>, 2008.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <time.h>
#include <stddef.h>
static inline struct timespec * abstime_to_reltime (
const struct timespec *abstime, struct timespec *reltime)
{
if (!abstime)
return NULL;
struct timespec now;
clock_gettime (CLOCK_REALTIME, &now);
reltime->tv_sec = abstime->tv_sec - now.tv_sec;
reltime->tv_nsec = abstime->tv_nsec - now.tv_nsec;
if (reltime->tv_nsec < 0)
{
reltime->tv_nsec += 1000000000;
--reltime->tv_sec;
}
return reltime;
}
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