diff options
Diffstat (limited to 'contrib/netbsd-tests/lib/libpthread/t_barrier.c')
| -rw-r--r-- | contrib/netbsd-tests/lib/libpthread/t_barrier.c | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/contrib/netbsd-tests/lib/libpthread/t_barrier.c b/contrib/netbsd-tests/lib/libpthread/t_barrier.c new file mode 100644 index 000000000000..a06cfd9100ad --- /dev/null +++ b/contrib/netbsd-tests/lib/libpthread/t_barrier.c @@ -0,0 +1,110 @@ +/* $NetBSD: t_barrier.c,v 1.2 2010/11/03 16:10:22 christos Exp $ */ + +/* + * Copyright (c) 2008 The NetBSD Foundation, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +__COPYRIGHT("@(#) Copyright (c) 2008\ + The NetBSD Foundation, inc. All rights reserved."); +__RCSID("$NetBSD: t_barrier.c,v 1.2 2010/11/03 16:10:22 christos Exp $"); + +#include <pthread.h> +#include <stdio.h> +#include <unistd.h> + +#include <atf-c.h> + +#include "h_common.h" + +#define COUNT 5 + +pthread_barrier_t barrier; +pthread_mutex_t mutex; +int serial_count; +int after_barrier_count; + +static void * +threadfunc(void *arg) +{ + int which = (int)(long)arg; + int rv; + + printf("thread %d entering barrier\n", which); + rv = pthread_barrier_wait(&barrier); + printf("thread %d leaving barrier -> %d\n", which, rv); + + PTHREAD_REQUIRE(pthread_mutex_lock(&mutex)); + after_barrier_count++; + if (rv == PTHREAD_BARRIER_SERIAL_THREAD) + serial_count++; + PTHREAD_REQUIRE(pthread_mutex_unlock(&mutex)); + + return NULL; +} + +ATF_TC(barrier); +ATF_TC_HEAD(barrier, tc) +{ + atf_tc_set_md_var(tc, "descr", "Checks barriers"); +} +ATF_TC_BODY(barrier, tc) +{ + int i; + pthread_t new[COUNT]; + void *joinval; + + PTHREAD_REQUIRE(pthread_mutex_init(&mutex, NULL)); + PTHREAD_REQUIRE(pthread_barrier_init(&barrier, NULL, COUNT)); + + for (i = 0; i < COUNT; i++) { + PTHREAD_REQUIRE(pthread_mutex_lock(&mutex)); + ATF_REQUIRE_EQ(after_barrier_count, 0); + PTHREAD_REQUIRE(pthread_mutex_unlock(&mutex)); + PTHREAD_REQUIRE(pthread_create(&new[i], NULL, threadfunc, + (void *)(long)i)); + sleep(2); + } + + for (i = 0; i < COUNT; i++) { + PTHREAD_REQUIRE(pthread_join(new[i], &joinval)); + PTHREAD_REQUIRE(pthread_mutex_lock(&mutex)); + ATF_REQUIRE(after_barrier_count > i); + PTHREAD_REQUIRE(pthread_mutex_unlock(&mutex)); + printf("main joined with thread %d\n", i); + } + + PTHREAD_REQUIRE(pthread_mutex_lock(&mutex)); + ATF_REQUIRE_EQ(after_barrier_count, COUNT); + PTHREAD_REQUIRE(pthread_mutex_unlock(&mutex)); + ATF_REQUIRE_EQ(serial_count, 1); +} + +ATF_TP_ADD_TCS(tp) +{ + ATF_TP_ADD_TC(tp, barrier); + + return atf_no_error(); +} |