/* Copyright (C) 2003-2013 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"