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/* Check if pthread_mutex_clocklock with PRIO_INHERIT fails with clock
different than CLOCK_REALTIME.
Copyright (C) 2020-2025 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 <pthread.h>
#include <errno.h>
#include <array_length.h>
#include <support/check.h>
#include <support/xthread.h>
#include <support/timespec.h>
static int
do_test (void)
{
const int types[] = {
PTHREAD_MUTEX_NORMAL,
PTHREAD_MUTEX_ERRORCHECK,
PTHREAD_MUTEX_RECURSIVE,
PTHREAD_MUTEX_ADAPTIVE_NP
};
const int robust[] = {
PTHREAD_MUTEX_STALLED,
PTHREAD_MUTEX_ROBUST
};
const struct {
int clk;
int r;
} clocks[] = {
{ CLOCK_REALTIME, 0 },
{ CLOCK_MONOTONIC, 0 },
{ CLOCK_REALTIME_COARSE, EINVAL }
};
for (int t = 0; t < array_length (types); t++)
for (int r = 0; r < array_length (robust); r++)
for (int c = 0; c < array_length (clocks); c++)
{
pthread_mutexattr_t attr;
xpthread_mutexattr_init (&attr);
xpthread_mutexattr_setprotocol (&attr, PTHREAD_PRIO_INHERIT);
xpthread_mutexattr_settype (&attr, types[t]);
xpthread_mutexattr_setrobust (&attr, robust[r]);
pthread_mutex_t mtx;
xpthread_mutex_init (&mtx, &attr);
/* Uncontended case does not trigger any futex call. */
struct timespec tmo = timespec_add (xclock_now (clocks[c].clk),
make_timespec (0, 100000000));
TEST_COMPARE (pthread_mutex_clocklock (&mtx, clocks[c].clk, &tmo),
clocks[c].r);
if (clocks[c].r == 0)
TEST_COMPARE (pthread_mutex_unlock (&mtx), 0);
xpthread_mutex_destroy (&mtx);
}
return 0;
}
#include <support/test-driver.c>
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