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/* Copyright (C) 2005-2021 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 <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
static pthread_barrier_t b;
static pthread_cond_t c = PTHREAD_COND_INITIALIZER;
static pthread_mutex_t m;
static bool first = true;
static void *
tf (void *arg)
{
long int n = (long int) arg;
if (pthread_mutex_lock (&m) != 0)
{
printf ("thread %ld: mutex_lock failed\n", n + 1);
exit (1);
}
int e = pthread_barrier_wait (&b);
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
{
printf ("thread %ld: barrier_wait failed\n", n + 1);
exit (1);
}
e = pthread_cond_wait (&c, &m);
if (first)
{
if (e != 0)
{
printf ("thread %ld: cond_wait failed\n", n + 1);
exit (1);
}
first = false;
}
else
{
if (e != EOWNERDEAD)
{
printf ("thread %ld: cond_wait did not return EOWNERDEAD\n", n + 1);
exit (1);
}
}
if (pthread_cancel (pthread_self ()) != 0)
{
printf ("thread %ld: cancel failed\n", n + 1);
exit (1);
}
pthread_testcancel ();
printf ("thread %ld: testcancel returned\n", n + 1);
exit (1);
}
static int
do_test (void)
{
pthread_mutexattr_t a;
if (pthread_mutexattr_init (&a) != 0)
{
puts ("mutexattr_init failed");
return 1;
}
if (pthread_mutexattr_setrobust (&a, PTHREAD_MUTEX_ROBUST_NP) != 0)
{
puts ("mutexattr_setrobust failed");
return 1;
}
#ifdef ENABLE_PI
if (pthread_mutexattr_setprotocol (&a, PTHREAD_PRIO_INHERIT) != 0)
{
puts ("pthread_mutexattr_setprotocol failed");
return 1;
}
#endif
int e;
e = pthread_mutex_init (&m, &a);
if (e != 0)
{
#ifdef ENABLE_PI
if (e == ENOTSUP)
{
puts ("PI robust mutexes not supported");
return 0;
}
#endif
puts ("mutex_init failed");
return 1;
}
if (pthread_mutexattr_destroy (&a) != 0)
{
puts ("mutexattr_destroy failed");
return 1;
}
if (pthread_barrier_init (&b, NULL, 2) != 0)
{
puts ("barrier_init failed");
return 1;
}
#define N 5
pthread_t th[N];
for (long int n = 0; n < N; ++n)
{
if (pthread_create (&th[n], NULL, tf, (void *) n) != 0)
{
printf ("pthread_create loop %ld failed\n", n + 1);
return 1;
}
e = pthread_barrier_wait (&b);
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
{
printf ("parent: barrier_wait failed in round %ld\n", n + 1);
return 1;
}
}
if (pthread_mutex_lock (&m) != 0)
{
puts ("parent: mutex_lock failed");
return 1;
}
if (pthread_mutex_unlock (&m) != 0)
{
puts ("parent: mutex_unlock failed");
return 1;
}
if (pthread_cond_broadcast (&c) != 0)
{
puts ("cond_broadcast failed");
return 1;
}
for (int n = 0; n < N; ++n)
{
void *res;
if (pthread_join (th[n], &res) != 0)
{
printf ("join round %d failed\n", n + 1);
return 1;
}
if (res != PTHREAD_CANCELED)
{
printf ("thread %d not canceled\n", n + 1);
return 1;
}
}
e = pthread_mutex_lock (&m);
if (e == 0)
{
puts ("parent: 2nd mutex_lock succeeded");
return 1;
}
if (e != EOWNERDEAD)
{
puts ("parent: mutex_lock did not return EOWNERDEAD");
return 1;
}
if (pthread_mutex_unlock (&m) != 0)
{
puts ("parent: 2nd mutex_unlock failed");
return 1;
}
if (pthread_mutex_destroy (&m) != 0)
{
puts ("mutex_destroy failed");
return 1;
}
return 0;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
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