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glibc/nptl/tst-cancel8.c
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/* Copyright (C) 2003-2016 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 | |
<http://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" |