minix/tests/lib/libpthread/t_sigmask.c
Lionel Sambuc 84d9c625bf Synchronize on NetBSD-CVS (2013/12/1 12:00:00 UTC)
- Fix for possible unset uid/gid in toproto
 - Fix for default mtree style
 - Update libelf
 - Importing libexecinfo
 - Resynchronize GCC, mpc, gmp, mpfr
 - build.sh: Replace params with show-params.
     This has been done as the make target has been renamed in the same
     way, while a new target named params has been added. This new
     target generates a file containing all the parameters, instead of
     printing it on the console.
 - Update test48 with new etc/services (Fix by Ben Gras <ben@minix3.org)
     get getservbyport() out of the inner loop

Change-Id: Ie6ad5226fa2621ff9f0dee8782ea48f9443d2091
2014-07-28 17:05:06 +02:00

261 lines
6.4 KiB
C

/* $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();
}