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/* Copyright (C) 2002-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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, see
<http://www.gnu.org/licenses/>. */
#include <errno.h>
#include <semaphore.h>
#include <stdio.h>
#include <time.h>
#include <unistd.h>
#include <sys/time.h>
static int
do_test (void)
{
sem_t s;
struct timespec ts;
struct timeval tv;
if (sem_init (&s, 0, 1) == -1)
{
puts ("sem_init failed");
return 1;
}
if (TEMP_FAILURE_RETRY (sem_wait (&s)) == -1)
{
puts ("sem_wait failed");
return 1;
}
if (gettimeofday (&tv, NULL) != 0)
{
puts ("gettimeofday failed");
return 1;
}
TIMEVAL_TO_TIMESPEC (&tv, &ts);
/* We wait for half a second. */
ts.tv_nsec += 500000000;
if (ts.tv_nsec >= 1000000000)
{
++ts.tv_sec;
ts.tv_nsec -= 1000000000;
}
errno = 0;
if (TEMP_FAILURE_RETRY (sem_timedwait (&s, &ts)) != -1)
{
puts ("sem_timedwait succeeded");
return 1;
}
if (errno != ETIMEDOUT)
{
printf ("sem_timedwait return errno = %d instead of ETIMEDOUT\n",
errno);
return 1;
}
struct timespec ts2;
if (clock_gettime (CLOCK_REALTIME, &ts2) != 0)
{
puts ("clock_gettime failed");
return 1;
}
if (ts2.tv_sec < ts.tv_sec
|| (ts2.tv_sec == ts.tv_sec && ts2.tv_nsec < ts.tv_nsec))
{
puts ("timeout too short");
return 1;
}
return 0;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
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