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/* Copyright (C) 2003-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
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 <stdio.h>
#include <stdlib.h>
#include <unistd.h>
static pthread_barrier_t bar;
static int global;
static void
cleanup (void *arg)
{
global = 1;
}
static void *
tf (void *arg)
{
/* Enable cancellation, but defer it. */
if (pthread_setcancelstate (PTHREAD_CANCEL_ENABLE, NULL) != 0)
{
puts ("setcancelstate failed");
exit (1);
}
if (pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, NULL) != 0)
{
puts ("setcanceltype failed");
exit (1);
}
/* Add cleanup handler. */
pthread_cleanup_push (cleanup, NULL);
/* Synchronize with the main thread. */
int r = pthread_barrier_wait (&bar);
if (r != 0 && r!= PTHREAD_BARRIER_SERIAL_THREAD)
{
puts ("tf: first barrier_wait failed");
exit (1);
}
/* And again. Once this is done the main thread should have canceled
this thread. */
r = pthread_barrier_wait (&bar);
if (r != 0 && r!= PTHREAD_BARRIER_SERIAL_THREAD)
{
puts ("tf: second barrier_wait failed");
exit (1);
}
/* Remove the cleanup handler without executing it. */
pthread_cleanup_pop (0);
/* Now react on the cancellation. */
pthread_testcancel ();
/* This call should never return. */
return NULL;
}
static int
do_test (void)
{
if (pthread_barrier_init (&bar, NULL, 2) != 0)
{
puts ("barrier_init failed");
exit (1);
}
pthread_t th;
if (pthread_create (&th, NULL, tf, NULL) != 0)
{
puts ("pthread_create failed");
return 1;
}
int r = pthread_barrier_wait (&bar);
if (r != 0 && r!= PTHREAD_BARRIER_SERIAL_THREAD)
{
puts ("first barrier_wait failed");
exit (1);
}
if (pthread_cancel (th) != 0)
{
puts ("pthread_cancel failed");
return 1;
}
r = pthread_barrier_wait (&bar);
if (r != 0 && r!= PTHREAD_BARRIER_SERIAL_THREAD)
{
puts ("second barrier_wait failed");
exit (1);
}
void *result;
if (pthread_join (th, &result) != 0)
{
puts ("pthread_join failed");
return 1;
}
if (result != PTHREAD_CANCELED)
{
puts ("thread was not canceled");
exit (1);
}
if (global != 0)
{
puts ("cancellation handler has been called");
exit (1);
}
return 0;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
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