minix/tests/lib/libpthread/t_sem.c
Lionel Sambuc 11be35a165 Importing NetBSD "Kyua" test framework
To do so, a few dependencies have been imported:

 * external/bsd/lutok
 * external/mit/lua
 * external/public-domain/sqlite
 * external/public-domain/xz

The Kyua framework is the new generation of ATF (Automated Test
Framework), it is composed of:

 * external/bsd/atf
 * external/bsd/kyua-atf-compat
 * external/bsd/kyua-cli
 * external/bsd/kyua-tester
 * tests

Kyua/ATF being written in C++, it depends on libstdc++ which is
provided by GCC. As this is not part of the sources, Kyua is only
compiled when the native GCC utils are installed.

To install Kyua do the following:

 * In a cross-build enviromnent, add the following to the build.sh
   commandline: -V MKBINUTILS=yes -V MKGCCCMDS=yes

WARNING:
  At this point the import is still experimental, and not supported
  on native builds (a.k.a make build).

Change-Id: I26aee23c5bbd2d64adcb7c1beb98fe0d479d7ada
2013-07-23 20:43:41 +02:00

307 lines
8.8 KiB
C

/* $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();
}