minix/tests/lib/libc/gen/t_raise.c

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/* $NetBSD: t_raise.c,v 1.5 2011/05/10 12:43:42 jruoho Exp $ */
/*-
* Copyright (c) 2011 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jukka Ruohonen.
*
* 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>
__RCSID("$NetBSD: t_raise.c,v 1.5 2011/05/10 12:43:42 jruoho Exp $");
#include <atf-c.h>
#include <signal.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
static bool fail;
static int count;
static void handler_err(int);
static void handler_ret(int);
static void handler_stress(int);
static int sig[] = { SIGALRM, SIGIO, SIGUSR1, SIGUSR2, SIGPWR };
static void
handler_stress(int signo)
{
count++;
}
static void
handler_err(int signo)
{
size_t i;
for (i = 0; i < __arraycount(sig); i++) {
if (sig[i] == signo) {
fail = false;
break;
}
}
}
static void
handler_ret(int signo)
{
(void)sleep(1);
fail = false;
}
ATF_TC(raise_err);
ATF_TC_HEAD(raise_err, tc)
{
atf_tc_set_md_var(tc, "descr", "Test raise(3) for invalid parameters");
}
ATF_TC_BODY(raise_err, tc)
{
int i = 0;
while (i < 10) {
ATF_REQUIRE(raise(10240 + i) == -1);
i++;
}
}
ATF_TC(raise_ret);
ATF_TC_HEAD(raise_ret, tc)
{
atf_tc_set_md_var(tc, "descr", "Test return order of raise(3)");
}
ATF_TC_BODY(raise_ret, tc)
{
struct sigaction sa;
fail = true;
sa.sa_flags = 0;
sa.sa_handler = handler_ret;
/*
* Verify that raise(3) does not return
* before the signal handler returns.
*/
ATF_REQUIRE(sigemptyset(&sa.sa_mask) == 0);
ATF_REQUIRE(sigaction(SIGUSR1, &sa, 0) == 0);
ATF_REQUIRE(raise(SIGUSR1) == 0);
if (fail != false)
atf_tc_fail("raise(3) returned before signal handler");
}
ATF_TC(raise_sig);
ATF_TC_HEAD(raise_sig, tc)
{
atf_tc_set_md_var(tc, "descr", "A basic test of raise(3)");
}
ATF_TC_BODY(raise_sig, tc)
{
struct timespec tv, tr;
struct sigaction sa;
size_t i;
for (i = 0; i < __arraycount(sig); i++) {
(void)memset(&sa, 0, sizeof(struct sigaction));
fail = true;
tv.tv_sec = 0;
tv.tv_nsec = 2;
sa.sa_flags = 0;
sa.sa_handler = handler_err;
ATF_REQUIRE(sigemptyset(&sa.sa_mask) == 0);
ATF_REQUIRE(sigaction(sig[i], &sa, 0) == 0);
ATF_REQUIRE(raise(sig[i]) == 0);
ATF_REQUIRE(nanosleep(&tv, &tr) == 0);
if (fail != false)
atf_tc_fail("raise(3) did not raise a signal");
}
}
ATF_TC(raise_stress);
ATF_TC_HEAD(raise_stress, tc)
{
atf_tc_set_md_var(tc, "descr", "A basic stress test with raise(3)");
}
ATF_TC_BODY(raise_stress, tc)
{
static const int maxiter = 1000 * 10;
struct sigaction sa;
int i;
sa.sa_flags = 0;
sa.sa_handler = handler_stress;
ATF_REQUIRE(sigemptyset(&sa.sa_mask) == 0);
ATF_REQUIRE(sigaction(SIGUSR1, &sa, 0) == 0);
for (count = i = 0; i < maxiter; i++)
(void)raise(SIGUSR1);
if (count != maxiter)
atf_tc_fail("not all signals were catched");
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, raise_err);
ATF_TP_ADD_TC(tp, raise_ret);
ATF_TP_ADD_TC(tp, raise_sig);
ATF_TP_ADD_TC(tp, raise_stress);
return atf_no_error();
}