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/* Copyright (C) 2003-2021 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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
<https://www.gnu.org/licenses/>. */
#include <errno.h>
#include <pthread.h>
#include <stdio.h>
#include <time.h>
#include <unistd.h>
#include <support/check.h>
#include <support/test-driver.h>
#include <support/timespec.h>
#include <support/xthread.h>
#include <support/xtime.h>
/* A bogus clock value that tells run_test to use pthread_cond_timedwait
rather than pthread_condclockwait. */
#define CLOCK_USE_ATTR_CLOCK (-1)
#if defined _POSIX_CLOCK_SELECTION && _POSIX_CLOCK_SELECTION >= 0
static int
run_test (clockid_t attr_clock, clockid_t wait_clock)
{
pthread_condattr_t condattr;
pthread_cond_t cond;
pthread_mutexattr_t mutattr;
pthread_mutex_t mut;
verbose_printf ("attr_clock = %d\n", (int) attr_clock);
TEST_COMPARE (pthread_condattr_init (&condattr), 0);
TEST_COMPARE (pthread_condattr_setclock (&condattr, attr_clock), 0);
clockid_t attr_clock_read;
TEST_COMPARE (pthread_condattr_getclock (&condattr, &attr_clock_read), 0);
TEST_COMPARE (attr_clock, attr_clock_read);
TEST_COMPARE (pthread_cond_init (&cond, &condattr), 0);
TEST_COMPARE (pthread_condattr_destroy (&condattr), 0);
xpthread_mutexattr_init (&mutattr);
xpthread_mutexattr_settype (&mutattr, PTHREAD_MUTEX_ERRORCHECK);
xpthread_mutex_init (&mut, &mutattr);
xpthread_mutexattr_destroy (&mutattr);
xpthread_mutex_lock (&mut);
TEST_COMPARE (pthread_mutex_lock (&mut), EDEADLK);
struct timespec ts_timeout;
xclock_gettime (wait_clock == CLOCK_USE_ATTR_CLOCK ? attr_clock : wait_clock,
&ts_timeout);
/* Wait one second. */
++ts_timeout.tv_sec;
if (wait_clock == CLOCK_USE_ATTR_CLOCK) {
TEST_COMPARE (pthread_cond_timedwait (&cond, &mut, &ts_timeout), ETIMEDOUT);
TEST_TIMESPEC_BEFORE_NOW (ts_timeout, attr_clock);
} else {
TEST_COMPARE (pthread_cond_clockwait (&cond, &mut, wait_clock, &ts_timeout),
ETIMEDOUT);
TEST_TIMESPEC_BEFORE_NOW (ts_timeout, wait_clock);
}
xpthread_mutex_unlock (&mut);
xpthread_mutex_destroy (&mut);
TEST_COMPARE (pthread_cond_destroy (&cond), 0);
return 0;
}
#endif
static int
do_test (void)
{
#if !defined _POSIX_CLOCK_SELECTION || _POSIX_CLOCK_SELECTION == -1
FAIL_UNSUPPORTED ("_POSIX_CLOCK_SELECTION not supported, test skipped");
#else
run_test (CLOCK_REALTIME, CLOCK_USE_ATTR_CLOCK);
# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
# if _POSIX_MONOTONIC_CLOCK == 0
int e = sysconf (_SC_MONOTONIC_CLOCK);
if (e < 0)
puts ("CLOCK_MONOTONIC not supported");
else if (e == 0)
FAIL_RET ("sysconf (_SC_MONOTONIC_CLOCK) must not return 0");
else
# endif
{
run_test (CLOCK_MONOTONIC, CLOCK_USE_ATTR_CLOCK);
run_test (CLOCK_REALTIME, CLOCK_MONOTONIC);
run_test (CLOCK_MONOTONIC, CLOCK_MONOTONIC);
run_test (CLOCK_MONOTONIC, CLOCK_REALTIME);
}
# else
puts ("_POSIX_MONOTONIC_CLOCK not defined");
# endif
return 0;
#endif
}
#include <support/test-driver.c>
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