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/* Test of timespec_get() function.
Copyright (C) 2021-2023 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Bruno Haible. */
#include <config.h>
#include <time.h>
#include "signature.h"
SIGNATURE_CHECK (timespec_get, int, (struct timespec *ts, int base));
#include "macros.h"
int
main (void)
{
struct timespec ts1;
time_t tt2;
struct timespec ts3;
time_t tt4;
ASSERT (timespec_get (&ts1, TIME_UTC));
tt2 = time (NULL);
ASSERT (timespec_get (&ts3, TIME_UTC));
tt4 = time (NULL);
/* Verify monotonicity of timespec_get(). */
ASSERT (ts1.tv_sec < ts3.tv_sec
|| (ts1.tv_sec == ts3.tv_sec && ts1.tv_nsec <= ts3.tv_nsec));
/* Verify monotonicity of time(). */
ASSERT (tt2 <= tt4);
/* Verify that the tv_sec field of the result is the same as time(NULL). */
/* Note: It's here that the dependency to the 'time' module is needed.
Without it, this assertion would sometimes fail on glibc systems, see
https://sourceware.org/bugzilla/show_bug.cgi?id=30200 */
ASSERT (ts1.tv_sec <= tt2);
ASSERT (tt2 <= ts3.tv_sec);
ASSERT (ts3.tv_sec <= tt4);
return 0;
}
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