diff options
Diffstat (limited to 'contrib/netbsd-tests/lib/libpthread/t_cond.c')
-rw-r--r-- | contrib/netbsd-tests/lib/libpthread/t_cond.c | 563 |
1 files changed, 563 insertions, 0 deletions
diff --git a/contrib/netbsd-tests/lib/libpthread/t_cond.c b/contrib/netbsd-tests/lib/libpthread/t_cond.c new file mode 100644 index 0000000..9f33c9e --- /dev/null +++ b/contrib/netbsd-tests/lib/libpthread/t_cond.c @@ -0,0 +1,563 @@ +/* $NetBSD: t_cond.c,v 1.6 2014/09/03 16:23:24 gson 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_cond.c,v 1.6 2014/09/03 16:23:24 gson Exp $"); + +#include <sys/time.h> + +#include <errno.h> +#include <pthread.h> +#include <stdio.h> +#include <unistd.h> + +#include <atf-c.h> + +#include "h_common.h" + +static pthread_mutex_t mutex; +static pthread_cond_t cond; +static pthread_mutex_t static_mutex = PTHREAD_MUTEX_INITIALIZER; +static pthread_cond_t static_cond = PTHREAD_COND_INITIALIZER; +static int count, share, toggle, total; + +static void * +signal_delay_wait_threadfunc(void *arg) +{ + int *shared = (int *) arg; + + printf("2: Second thread.\n"); + + printf("2: Locking mutex\n"); + PTHREAD_REQUIRE(pthread_mutex_lock(&mutex)); + printf("2: Got mutex.\n"); + printf("Shared value: %d. Changing to 0.\n", *shared); + *shared = 0; + + PTHREAD_REQUIRE(pthread_mutex_unlock(&mutex)); + PTHREAD_REQUIRE(pthread_cond_signal(&cond)); + + return NULL; +} + +ATF_TC(signal_delay_wait); +ATF_TC_HEAD(signal_delay_wait, tc) +{ + atf_tc_set_md_var(tc, "descr", "Checks condition variables"); +} +ATF_TC_BODY(signal_delay_wait, tc) +{ + pthread_t new; + void *joinval; + int sharedval; + + printf("1: condition variable test 1\n"); + + PTHREAD_REQUIRE(pthread_mutex_init(&mutex, NULL)); + PTHREAD_REQUIRE(pthread_cond_init(&cond, NULL)); + + PTHREAD_REQUIRE(pthread_mutex_lock(&mutex)); + + sharedval = 1; + + PTHREAD_REQUIRE(pthread_create(&new, NULL, signal_delay_wait_threadfunc, + &sharedval)); + + printf("1: Before waiting.\n"); + do { + sleep(2); + PTHREAD_REQUIRE(pthread_cond_wait(&cond, &mutex)); + printf("1: After waiting, in loop.\n"); + } while (sharedval != 0); + + printf("1: After the loop.\n"); + + PTHREAD_REQUIRE(pthread_mutex_unlock(&mutex)); + + printf("1: After releasing the mutex.\n"); + PTHREAD_REQUIRE(pthread_join(new, &joinval)); + + printf("1: Thread joined.\n"); +} + +static void * +signal_before_unlock_threadfunc(void *arg) +{ + int *shared = (int *) arg; + + printf("2: Second thread.\n"); + + printf("2: Locking mutex\n"); + PTHREAD_REQUIRE(pthread_mutex_lock(&mutex)); + printf("2: Got mutex.\n"); + printf("Shared value: %d. Changing to 0.\n", *shared); + *shared = 0; + + /* Signal first, then unlock, for a different test than #1. */ + PTHREAD_REQUIRE(pthread_cond_signal(&cond)); + PTHREAD_REQUIRE(pthread_mutex_unlock(&mutex)); + + return NULL; +} + +ATF_TC(signal_before_unlock); +ATF_TC_HEAD(signal_before_unlock, tc) +{ + atf_tc_set_md_var(tc, "descr", + "Checks condition variables: signal before unlocking mutex"); +} +ATF_TC_BODY(signal_before_unlock, tc) +{ + pthread_t new; + void *joinval; + int sharedval; + + printf("1: condition variable test 2\n"); + + PTHREAD_REQUIRE(pthread_mutex_init(&mutex, NULL)); + PTHREAD_REQUIRE(pthread_cond_init(&cond, NULL)); + + PTHREAD_REQUIRE(pthread_mutex_lock(&mutex)); + + sharedval = 1; + + PTHREAD_REQUIRE(pthread_create(&new, NULL, + signal_before_unlock_threadfunc, &sharedval)); + + printf("1: Before waiting.\n"); + do { + sleep(2); + PTHREAD_REQUIRE(pthread_cond_wait(&cond, &mutex)); + printf("1: After waiting, in loop.\n"); + } while (sharedval != 0); + + printf("1: After the loop.\n"); + + PTHREAD_REQUIRE(pthread_mutex_unlock(&mutex)); + + printf("1: After releasing the mutex.\n"); + PTHREAD_REQUIRE(pthread_join(new, &joinval)); + + printf("1: Thread joined.\n"); +} + +static void * +signal_before_unlock_static_init_threadfunc(void *arg) +{ + int *shared = (int *) arg; + + printf("2: Second thread.\n"); + + printf("2: Locking mutex\n"); + PTHREAD_REQUIRE(pthread_mutex_lock(&static_mutex)); + printf("2: Got mutex.\n"); + printf("Shared value: %d. Changing to 0.\n", *shared); + *shared = 0; + + /* Signal first, then unlock, for a different test than #1. */ + PTHREAD_REQUIRE(pthread_cond_signal(&static_cond)); + PTHREAD_REQUIRE(pthread_mutex_unlock(&static_mutex)); + + return NULL; +} + +ATF_TC(signal_before_unlock_static_init); +ATF_TC_HEAD(signal_before_unlock_static_init, tc) +{ + atf_tc_set_md_var(tc, "descr", + "Checks condition variables: signal before unlocking " + "mutex, use static initializers"); +} +ATF_TC_BODY(signal_before_unlock_static_init, tc) +{ + pthread_t new; + void *joinval; + int sharedval; + + printf("1: condition variable test 3\n"); + + PTHREAD_REQUIRE(pthread_mutex_lock(&static_mutex)); + + sharedval = 1; + + PTHREAD_REQUIRE(pthread_create(&new, NULL, + signal_before_unlock_static_init_threadfunc, &sharedval)); + + printf("1: Before waiting.\n"); + do { + sleep(2); + PTHREAD_REQUIRE(pthread_cond_wait(&static_cond, &static_mutex)); + printf("1: After waiting, in loop.\n"); + } while (sharedval != 0); + + printf("1: After the loop.\n"); + + PTHREAD_REQUIRE(pthread_mutex_unlock(&static_mutex)); + + printf("1: After releasing the mutex.\n"); + PTHREAD_REQUIRE(pthread_join(new, &joinval)); + + printf("1: Thread joined.\n"); +} + +static void * +signal_wait_race_threadfunc(void *arg) +{ + printf("2: Second thread.\n"); + PTHREAD_REQUIRE(pthread_mutex_lock(&static_mutex)); + printf("2: Before the loop.\n"); + while (count>0) { + count--; + total++; + toggle = 0; + /* printf("2: Before signal %d.\n", count); */ + PTHREAD_REQUIRE(pthread_cond_signal(&static_cond)); + do { + PTHREAD_REQUIRE(pthread_cond_wait(&static_cond, + &static_mutex)); + } while (toggle != 1); + } + printf("2: After the loop.\n"); + PTHREAD_REQUIRE(pthread_mutex_unlock(&static_mutex)); + + return NULL; +} + +ATF_TC(signal_wait_race); +ATF_TC_HEAD(signal_wait_race, tc) +{ + atf_tc_set_md_var(tc, "descr", "Checks condition variables"); +} +ATF_TC_BODY(signal_wait_race, tc) +{ + pthread_t new; + void *joinval; + int sharedval; + + printf("1: condition variable test 4\n"); + + PTHREAD_REQUIRE(pthread_mutex_lock(&static_mutex)); + + count = 50000; + toggle = 0; + + PTHREAD_REQUIRE(pthread_create(&new, NULL, signal_wait_race_threadfunc, + &sharedval)); + + printf("1: Before waiting.\n"); + while (count>0) { + count--; + total++; + toggle = 1; + /* printf("1: Before signal %d.\n", count); */ + PTHREAD_REQUIRE(pthread_cond_signal(&static_cond)); + do { + PTHREAD_REQUIRE(pthread_cond_wait(&static_cond, + &static_mutex)); + } while (toggle != 0); + } + printf("1: After the loop.\n"); + + toggle = 1; + PTHREAD_REQUIRE(pthread_mutex_unlock(&static_mutex)); + PTHREAD_REQUIRE(pthread_cond_signal(&static_cond)); + + printf("1: After releasing the mutex.\n"); + PTHREAD_REQUIRE(pthread_join(new, &joinval)); + + printf("1: Thread joined. Final count = %d, total = %d\n", + count, total); + + ATF_REQUIRE_EQ(count, 0); + ATF_REQUIRE_EQ(total, 50000); +} + +static void * +pthread_cond_timedwait_func(void *arg) +{ + struct timespec ts; + size_t i = 0; + int rv; + + for (;;) { + + if (i++ >= 10000) + pthread_exit(NULL); + + (void)memset(&ts, 0, sizeof(struct timespec)); + + ATF_REQUIRE(clock_gettime(CLOCK_REALTIME, &ts) == 0); + + /* + * Set to one second in the past: + * pthread_cond_timedwait(3) should + * return ETIMEDOUT immediately. + */ + ts.tv_sec = ts.tv_sec - 1; + + PTHREAD_REQUIRE(pthread_mutex_lock(&static_mutex)); + rv = pthread_cond_timedwait(&static_cond, &static_mutex, &ts); + + /* + * Sometimes we catch ESRCH. + * This should never happen. + */ + ATF_REQUIRE(rv == ETIMEDOUT); + PTHREAD_REQUIRE(pthread_mutex_unlock(&static_mutex)); + } +} + +ATF_TC(cond_timedwait_race); +ATF_TC_HEAD(cond_timedwait_race, tc) +{ + atf_tc_set_md_var(tc, "descr", "Test pthread_cond_timedwait(3)"); + +} +ATF_TC_BODY(cond_timedwait_race, tc) +{ + pthread_t tid[64]; + size_t i; + + for (i = 0; i < __arraycount(tid); i++) { + + PTHREAD_REQUIRE(pthread_create(&tid[i], NULL, + pthread_cond_timedwait_func, NULL)); + } + + for (i = 0; i < __arraycount(tid); i++) { + + PTHREAD_REQUIRE(pthread_join(tid[i], NULL)); + } +} + +static void * +broadcast_threadfunc(void *arg) +{ + printf("2: Second thread.\n"); + + PTHREAD_REQUIRE(pthread_mutex_lock(&static_mutex)); + while (count>0) { + count--; + total++; + toggle = 0; + PTHREAD_REQUIRE(pthread_cond_signal(&static_cond)); + do { + PTHREAD_REQUIRE(pthread_cond_wait(&static_cond, + &static_mutex)); + } while (toggle != 1); + } + printf("2: After the loop.\n"); + PTHREAD_REQUIRE(pthread_mutex_unlock(&static_mutex)); + + return NULL; +} + + +ATF_TC(broadcast); +ATF_TC_HEAD(broadcast, tc) +{ + atf_tc_set_md_var(tc, "descr", + "Checks condition variables: use pthread_cond_broadcast()"); +} +ATF_TC_BODY(broadcast, tc) +{ + pthread_t new; + void *joinval; + int sharedval; + + printf("1: condition variable test 5\n"); + + PTHREAD_REQUIRE(pthread_mutex_lock(&static_mutex)); + + count = 50000; + toggle = 0; + + PTHREAD_REQUIRE(pthread_create(&new, NULL, broadcast_threadfunc, + &sharedval)); + + printf("1: Before waiting.\n"); + while (count>0) { + count--; + total++; + toggle = 1; + PTHREAD_REQUIRE(pthread_cond_broadcast(&static_cond)); + do { + PTHREAD_REQUIRE(pthread_cond_wait(&static_cond, + &static_mutex)); + } while (toggle != 0); + } + printf("1: After the loop.\n"); + + toggle = 1; + PTHREAD_REQUIRE(pthread_mutex_unlock(&static_mutex)); + PTHREAD_REQUIRE(pthread_cond_signal(&static_cond)); + + printf("1: After releasing the mutex.\n"); + PTHREAD_REQUIRE(pthread_join(new, &joinval)); + + printf("1: Thread joined. Final count = %d, total = %d\n", count, + total); + + ATF_REQUIRE_EQ(count, 0); + ATF_REQUIRE_EQ(total, 50000); +} + +static void * +bogus_timedwaits_threadfunc(void *arg) +{ + return NULL; +} + +ATF_TC(bogus_timedwaits); +ATF_TC_HEAD(bogus_timedwaits, tc) +{ + atf_tc_set_md_var(tc, "descr", + "Checks condition variables: bogus timedwaits"); +} +ATF_TC_BODY(bogus_timedwaits, tc) +{ + pthread_t new; + struct timespec ts; + struct timeval tv; + + printf("condition variable test 6: bogus timedwaits\n"); + + PTHREAD_REQUIRE(pthread_mutex_lock(&static_mutex)); + + printf("unthreaded test (past)\n"); + gettimeofday(&tv, NULL); + tv.tv_sec -= 2; /* Place the time in the past */ + TIMEVAL_TO_TIMESPEC(&tv, &ts); + + ATF_REQUIRE_EQ_MSG(pthread_cond_timedwait(&static_cond, &static_mutex, + &ts), ETIMEDOUT, "pthread_cond_timedwait() (unthreaded) in the " + "past"); + + printf("unthreaded test (zero time)\n"); + tv.tv_sec = 0; + tv.tv_usec = 0; + TIMEVAL_TO_TIMESPEC(&tv, &ts); + + ATF_REQUIRE_EQ_MSG(pthread_cond_timedwait(&static_cond, &static_mutex, + &ts), ETIMEDOUT, "pthread_cond_timedwait() (unthreaded) with zero " + "time"); + + PTHREAD_REQUIRE(pthread_create(&new, NULL, bogus_timedwaits_threadfunc, + NULL)); + PTHREAD_REQUIRE(pthread_join(new, NULL)); + + printf("threaded test\n"); + gettimeofday(&tv, NULL); + tv.tv_sec -= 2; /* Place the time in the past */ + TIMEVAL_TO_TIMESPEC(&tv, &ts); + + ATF_REQUIRE_EQ_MSG(pthread_cond_timedwait(&static_cond, &static_mutex, + &ts), ETIMEDOUT, "pthread_cond_timedwait() (threaded) in the past"); + + printf("threaded test (zero time)\n"); + tv.tv_sec = 0; + tv.tv_usec = 0; + TIMEVAL_TO_TIMESPEC(&tv, &ts); + + ATF_REQUIRE_EQ_MSG(pthread_cond_timedwait(&static_cond, &static_mutex, + &ts), ETIMEDOUT, "pthread_cond_timedwait() (threaded) with zero " + "time"); + + PTHREAD_REQUIRE(pthread_mutex_unlock(&static_mutex)); +} + +static void +unlock(void *arg) +{ + pthread_mutex_unlock((pthread_mutex_t *)arg); +} + +static void * +destroy_after_cancel_threadfunc(void *arg) +{ + PTHREAD_REQUIRE(pthread_mutex_lock(&mutex)); + + pthread_cleanup_push(unlock, &mutex); + + while (1) { + share = 1; + PTHREAD_REQUIRE(pthread_cond_broadcast(&cond)); + PTHREAD_REQUIRE(pthread_cond_wait(&cond, &mutex)); + } + + pthread_cleanup_pop(0); + PTHREAD_REQUIRE(pthread_mutex_unlock(&mutex)); + + return NULL; +} + +ATF_TC(destroy_after_cancel); +ATF_TC_HEAD(destroy_after_cancel, tc) +{ + atf_tc_set_md_var(tc, "descr", "Checks destroying a condition variable " + "after cancelling a wait"); +} +ATF_TC_BODY(destroy_after_cancel, tc) +{ + pthread_t thread; + + PTHREAD_REQUIRE(pthread_mutex_init(&mutex, NULL)); + PTHREAD_REQUIRE(pthread_cond_init(&cond, NULL)); + PTHREAD_REQUIRE(pthread_mutex_lock(&mutex)); + PTHREAD_REQUIRE(pthread_create(&thread, NULL, + destroy_after_cancel_threadfunc, NULL)); + + while (share == 0) { + PTHREAD_REQUIRE(pthread_cond_wait(&cond, &mutex)); + } + + PTHREAD_REQUIRE(pthread_mutex_unlock(&mutex)); + PTHREAD_REQUIRE(pthread_cancel(thread)); + + PTHREAD_REQUIRE(pthread_join(thread, NULL)); + PTHREAD_REQUIRE(pthread_cond_destroy(&cond)); + + PTHREAD_REQUIRE(pthread_mutex_destroy(&mutex)); +} + +ATF_TP_ADD_TCS(tp) +{ + + ATF_TP_ADD_TC(tp, signal_delay_wait); + ATF_TP_ADD_TC(tp, signal_before_unlock); + ATF_TP_ADD_TC(tp, signal_before_unlock_static_init); + ATF_TP_ADD_TC(tp, signal_wait_race); + ATF_TP_ADD_TC(tp, cond_timedwait_race); + ATF_TP_ADD_TC(tp, broadcast); + ATF_TP_ADD_TC(tp, bogus_timedwaits); + ATF_TP_ADD_TC(tp, destroy_after_cancel); + + return atf_no_error(); +} |