diff options
Diffstat (limited to 'contrib/netbsd-tests/lib/libpthread/t_sem.c')
| -rw-r--r-- | contrib/netbsd-tests/lib/libpthread/t_sem.c | 307 |
1 files changed, 307 insertions, 0 deletions
diff --git a/contrib/netbsd-tests/lib/libpthread/t_sem.c b/contrib/netbsd-tests/lib/libpthread/t_sem.c new file mode 100644 index 0000000..467d182 --- /dev/null +++ b/contrib/netbsd-tests/lib/libpthread/t_sem.c @@ -0,0 +1,307 @@ +/* $NetBSD: t_sem.c,v 1.7 2012/03/09 19:46:37 joerg Exp $ */ + +/* + * Copyright (c) 2008, 2010 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. + */ + +/*- + * Copyright (c)2004 YAMAMOTO Takashi, + * 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 AUTHOR 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 AUTHOR 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. + */ + +/**************************************************************************** + * + * Copyright (C) 2000 Jason Evans <jasone@freebsd.org>. + * 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(s), this list of conditions and the following disclaimer as + * the first lines of this file unmodified other than the possible + * addition of one or more copyright notices. + * 2. Redistributions in binary form must reproduce the above copyright + * notice(s), 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 COPYRIGHT HOLDER(S) ``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 COPYRIGHT HOLDER(S) 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, 2010\ + The NetBSD Foundation, inc. All rights reserved."); +__RCSID("$NetBSD: t_sem.c,v 1.7 2012/03/09 19:46:37 joerg Exp $"); + +#include <errno.h> +#include <fcntl.h> +#include <pthread.h> +#include <semaphore.h> +#include <signal.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#include <atf-c.h> +#include <atf-c/config.h> + +#include "h_common.h" + +#define NTHREADS 10 + +#define _LIBC_R_ + +#define SEM_REQUIRE(x) \ + ATF_REQUIRE_EQ_MSG(x, 0, "%s", strerror(errno)) + +static sem_t sem; + +ATF_TC(named); +ATF_TC_HEAD(named, tc) +{ + atf_tc_set_md_var(tc, "descr", "Checks named semaphores"); +} +ATF_TC_BODY(named, tc) +{ + sem_t *semp; + + ATF_REQUIRE_MSG(-1 != sysconf(_SC_SEMAPHORES), "%s", strerror(errno)); + + printf("Test begin\n"); + + (void) sem_unlink("/foo"); + semp = sem_open("/foo", O_CREAT | O_EXCL, 0644, 0); + ATF_REQUIRE_MSG(semp != SEM_FAILED, "%s", strerror(errno)); + SEM_REQUIRE(sem_close(semp)); + SEM_REQUIRE(sem_unlink("/foo")); + + printf("Test end\n"); +} + +ATF_TC(unnamed); +ATF_TC_HEAD(unnamed, tc) +{ + atf_tc_set_md_var(tc, "descr", "Checks unnamed semaphores"); +} + +static void * +entry(void * a_arg) +{ + pthread_t self = pthread_self(); + sem_t *semp = (sem_t *) a_arg; + + printf("Thread %p waiting for semaphore...\n", self); + sem_wait(semp); + printf("Thread %p got semaphore\n", self); + + return NULL; +} + +ATF_TC_BODY(unnamed, tc) +{ + sem_t sem_a, sem_b; + pthread_t threads[NTHREADS]; + unsigned i, j; + int val; + + ATF_REQUIRE_MSG(-1 != sysconf(_SC_SEMAPHORES), "%s", strerror(errno)); + + printf("Test begin\n"); + + SEM_REQUIRE(sem_init(&sem_b, 0, 0)); + SEM_REQUIRE(sem_getvalue(&sem_b, &val)); + ATF_REQUIRE_EQ(0, val); + + SEM_REQUIRE(sem_post(&sem_b)); + SEM_REQUIRE(sem_getvalue(&sem_b, &val)); + ATF_REQUIRE_EQ(1, val); + + SEM_REQUIRE(sem_wait(&sem_b)); + ATF_REQUIRE_EQ(sem_trywait(&sem_b), -1); + ATF_REQUIRE_EQ(errno, EAGAIN); + SEM_REQUIRE(sem_post(&sem_b)); + SEM_REQUIRE(sem_trywait(&sem_b)); + SEM_REQUIRE(sem_post(&sem_b)); + SEM_REQUIRE(sem_wait(&sem_b)); + SEM_REQUIRE(sem_post(&sem_b)); + + SEM_REQUIRE(sem_destroy(&sem_b)); + + SEM_REQUIRE(sem_init(&sem_a, 0, 0)); + + for (j = 0; j < 2; j++) { + for (i = 0; i < NTHREADS; i++) { + PTHREAD_REQUIRE(pthread_create(&threads[i], NULL, + entry, (void *) &sem_a)); + } + + for (i = 0; i < NTHREADS; i++) { + usleep(10000); + printf("main loop %u: posting...\n", j+1); + SEM_REQUIRE(sem_post(&sem_a)); + } + + for (i = 0; i < NTHREADS; i++) { + PTHREAD_REQUIRE(pthread_join(threads[i], NULL)); + } + } + + SEM_REQUIRE(sem_destroy(&sem_a)); + + printf("Test end\n"); +} + +static void +sighandler(int signo) +{ + /* printf("signal %d\n", signo); */ + + ATF_REQUIRE_EQ_MSG(signo, SIGALRM, "unexpected signal"); + SEM_REQUIRE(sem_post(&sem)); +} + +static void +alarm_ms(const int ms) +{ + struct itimerval timer; + timer.it_interval.tv_sec = 0; + timer.it_interval.tv_usec = 0; + timer.it_value.tv_sec = 0; + timer.it_value.tv_usec = ms * 1000; + ATF_REQUIRE(setitimer(ITIMER_REAL, &timer, NULL) == 0); +} + +static void * +threadfunc(void *arg) +{ + int i, ret; + + printf("Entering loop\n"); + for (i = 0; i < 500; ) { + if ((i & 1) != 0) { + do { + ret = sem_wait(&sem); + } while (ret == -1 && errno == EINTR); + ATF_REQUIRE(ret == 0); + } else { + ret = sem_trywait(&sem); + if (ret == -1) { + ATF_REQUIRE(errno == EAGAIN); + continue; + } + } + printf("%s: %d\n", __func__, i); + alarm_ms(5); + i++; + } + + return NULL; +} + +static void +before_start_test(const bool use_pthread) +{ + pthread_t t; + + SEM_REQUIRE(sem_init(&sem, 0, 0)); + ATF_REQUIRE(SIG_ERR != signal(SIGALRM, sighandler)); + + alarm_ms(5); + + if (use_pthread) { + PTHREAD_REQUIRE(pthread_create(&t, NULL, threadfunc, NULL)); + PTHREAD_REQUIRE(pthread_join(t, NULL)); + } else { + threadfunc(NULL); + } +} + +ATF_TC(before_start_no_threads); +ATF_TC_HEAD(before_start_no_threads, tc) +{ + atf_tc_set_md_var(tc, "descr", "Checks using semaphores without any " + "thread running"); + atf_tc_set_md_var(tc, "timeout", "40"); +} +ATF_TC_BODY(before_start_no_threads, tc) +{ + before_start_test(false); +} + +ATF_TC(before_start_one_thread); +ATF_TC_HEAD(before_start_one_thread, tc) +{ + atf_tc_set_md_var(tc, "descr", "Checks using semaphores before " + "starting one thread"); + atf_tc_set_md_var(tc, "timeout", "40"); +} +ATF_TC_BODY(before_start_one_thread, tc) +{ + before_start_test(true); +} + +ATF_TP_ADD_TCS(tp) +{ + ATF_TP_ADD_TC(tp, named); + ATF_TP_ADD_TC(tp, unnamed); + ATF_TP_ADD_TC(tp, before_start_no_threads); + ATF_TP_ADD_TC(tp, before_start_one_thread); + + return atf_no_error(); +} |
