diff options
Diffstat (limited to 'contrib/netbsd-tests/lib/libpthread/t_sigmask.c')
| -rw-r--r-- | contrib/netbsd-tests/lib/libpthread/t_sigmask.c | 261 |
1 files changed, 261 insertions, 0 deletions
diff --git a/contrib/netbsd-tests/lib/libpthread/t_sigmask.c b/contrib/netbsd-tests/lib/libpthread/t_sigmask.c new file mode 100644 index 0000000..69e0577 --- /dev/null +++ b/contrib/netbsd-tests/lib/libpthread/t_sigmask.c @@ -0,0 +1,261 @@ +/* $NetBSD: t_sigmask.c,v 1.3 2013/10/19 17:45:01 christos 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. + */ + +#include <sys/cdefs.h> +__COPYRIGHT("@(#) Copyright (c) 2008, 2010\ + The NetBSD Foundation, inc. All rights reserved."); +__RCSID("$NetBSD: t_sigmask.c,v 1.3 2013/10/19 17:45:01 christos Exp $"); + +/* + * Regression test for pthread_sigmask when SA upcalls aren't started yet. + * + * Written by Christian Limpach <cl@NetBSD.org>, December 2003. + * Public domain. + */ + +#include <errno.h> +#include <pthread.h> +#include <signal.h> +#include <stdio.h> +#include <unistd.h> + +#include <sys/resource.h> + +#include <atf-c.h> + +#include "h_common.h" + +static volatile sig_atomic_t flag; +static volatile sig_atomic_t flag2; + +static volatile pthread_t thr_usr1; +static volatile pthread_t thr_usr2; + +static sig_atomic_t count = 0; + +ATF_TC(upcalls_not_started); +ATF_TC_HEAD(upcalls_not_started, tc) +{ + atf_tc_set_md_var(tc, "descr", "Checks pthread_sigmask when SA upcalls " + "aren't started yet"); +} +ATF_TC_BODY(upcalls_not_started, tc) +{ + sigset_t nset; + struct rlimit rlim; + + rlim.rlim_cur = rlim.rlim_max = 0; + (void) setrlimit(RLIMIT_CORE, &rlim); + + sigemptyset(&nset); + sigaddset(&nset, SIGFPE); + pthread_sigmask(SIG_BLOCK, &nset, NULL); + + kill(getpid(), SIGFPE); +} + +static void +upcalls_not_started_handler1(int sig, siginfo_t *info, void *ctx) +{ + + kill(getpid(), SIGUSR2); + /* + * If the mask is properly set, SIGUSR2 will not be handled + * until this handler returns. + */ + flag = 1; +} + +static void +upcalls_not_started_handler2(int sig, siginfo_t *info, void *ctx) +{ + if (flag == 1) + flag = 2; +} + +ATF_TC(before_threads); +ATF_TC_HEAD(before_threads, tc) +{ + atf_tc_set_md_var(tc, "descr", "Checks that signal masks are respected " + "before threads are started"); +} +ATF_TC_BODY(before_threads, tc) +{ + struct sigaction act; + + act.sa_sigaction = upcalls_not_started_handler1; + sigemptyset(&act.sa_mask); + sigaddset(&act.sa_mask, SIGUSR2); + act.sa_flags = SA_SIGINFO; + + ATF_REQUIRE_EQ(sigaction(SIGUSR1, &act, NULL), 0); + + act.sa_sigaction = upcalls_not_started_handler2; + sigemptyset(&act.sa_mask); + act.sa_flags = SA_SIGINFO; + (void)sigaction(SIGUSR2, &act, NULL); + + kill(getpid(), SIGUSR1); + + ATF_REQUIRE_EQ(flag, 2); + printf("Success: Both handlers ran in order\n"); +} + +static void +respected_while_running_handler1(int sig, siginfo_t *info, void *ctx) +{ + + kill(getpid(), SIGUSR2); + /* + * If the mask is properly set, SIGUSR2 will not be handled + * by the current thread until this handler returns. + */ + flag = 1; + thr_usr1 = pthread_self(); +} + +static void +respected_while_running_handler2(int sig, siginfo_t *info, void *ctx) +{ + if (flag == 1) + flag = 2; + flag2 = 1; + thr_usr2 = pthread_self(); +} + +static void * +respected_while_running_threadroutine(void *arg) +{ + + kill(getpid(), SIGUSR1); + sleep(1); + + if (flag == 2) + printf("Success: Both handlers ran in order\n"); + else if (flag == 1 && flag2 == 1 && thr_usr1 != thr_usr2) + printf("Success: Handlers were invoked by different threads\n"); + else { + printf("Failure: flag=%d, flag2=%d, thr1=%p, thr2=%p\n", + (int)flag, (int)flag2, (void *)thr_usr1, (void *)thr_usr2); + atf_tc_fail("failure"); + } + + return NULL; +} + +ATF_TC(respected_while_running); +ATF_TC_HEAD(respected_while_running, tc) +{ + atf_tc_set_md_var(tc, "descr", "Checks that signal masks are respected " + "while threads are running"); +} +ATF_TC_BODY(respected_while_running, tc) +{ + struct sigaction act; + pthread_t thread; + + act.sa_sigaction = respected_while_running_handler1; + sigemptyset(&act.sa_mask); + sigaddset(&act.sa_mask, SIGUSR2); + act.sa_flags = SA_SIGINFO; + + ATF_REQUIRE_EQ(sigaction(SIGUSR1, &act, NULL), 0); + + act.sa_sigaction = respected_while_running_handler2; + sigemptyset(&act.sa_mask); + act.sa_flags = SA_SIGINFO; + (void)sigaction(SIGUSR2, &act, NULL); + + PTHREAD_REQUIRE(pthread_create(&thread, NULL, + respected_while_running_threadroutine, NULL)); + PTHREAD_REQUIRE(pthread_join(thread, NULL)); +} + +static void +incorrect_mask_bug_handler(int sig) +{ + count++; +} + +static void * +incorrect_mask_bug_sleeper(void* arg) +{ + int i; + for (i = 0; i < 10; i++) + sleep(1); + + atf_tc_fail("sleeper"); +} + +ATF_TC(incorrect_mask_bug); +ATF_TC_HEAD(incorrect_mask_bug, tc) +{ + atf_tc_set_md_var(tc, "descr", "Checks for bug in libpthread where " + "incorrect signal mask was used"); +} +ATF_TC_BODY(incorrect_mask_bug, tc) +{ + pthread_t id; + struct sigaction act; + + act.sa_sigaction = NULL; + sigemptyset(&act.sa_mask); + act.sa_flags = 0; + act.sa_handler = incorrect_mask_bug_handler; + + ATF_REQUIRE_EQ_MSG(sigaction(SIGALRM, &act, NULL), 0, "%s", + strerror(errno)); + + sigaddset(&act.sa_mask, SIGALRM); + PTHREAD_REQUIRE(pthread_sigmask(SIG_SETMASK, &act.sa_mask, NULL)); + + PTHREAD_REQUIRE(pthread_create(&id, NULL, incorrect_mask_bug_sleeper, + NULL)); + sleep(1); + + sigemptyset(&act.sa_mask); + PTHREAD_REQUIRE(pthread_sigmask(SIG_SETMASK, &act.sa_mask, NULL)); + + for (;;) { + alarm(1); + if (select(1, NULL, NULL, NULL, NULL) == -1 && errno == EINTR) + if (count == 2) + return; + } +} + +ATF_TP_ADD_TCS(tp) +{ + + ATF_TP_ADD_TC(tp, upcalls_not_started); + ATF_TP_ADD_TC(tp, before_threads); + ATF_TP_ADD_TC(tp, respected_while_running); + ATF_TP_ADD_TC(tp, incorrect_mask_bug); + + return atf_no_error(); +} |
