1 /* $NetBSD: t_sigqueue.c,v 1.6 2016/08/04 06:43:43 christos Exp $ */
4 * Copyright (c) 2011 The NetBSD Foundation, Inc.
7 * This code is derived from software contributed to The NetBSD Foundation
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
32 #include <sys/cdefs.h>
33 __RCSID("$NetBSD: t_sigqueue.c,v 1.6 2016/08/04 06:43:43 christos Exp $");
43 static void handler(int, siginfo_t *, void *);
45 #define VALUE (int)0xc001dad1
50 handler(int signo __unused, siginfo_t *info __unused, void *data __unused)
52 handler(int signo, siginfo_t *info, void *data)
55 value = info->si_value.sival_int;
59 ATF_TC(sigqueue_basic);
60 ATF_TC_HEAD(sigqueue_basic, tc)
62 atf_tc_set_md_var(tc, "descr", "Checks sigqueue(3) sigval delivery");
65 ATF_TC_BODY(sigqueue_basic, tc)
70 sa.sa_sigaction = handler;
71 sigemptyset(&sa.sa_mask);
72 sa.sa_flags = SA_SIGINFO;
74 if (sigaction(SIGUSR1, &sa, NULL) != 0)
75 atf_tc_fail("sigaction failed");
82 * Specification says sigqueue can only send signal to single process.
84 if (sigqueue(getpid(), SIGUSR1, sv) != 0)
86 if (sigqueue(0, SIGUSR1, sv) != 0)
88 atf_tc_fail("sigqueue failed");
91 ATF_REQUIRE_EQ(sv.sival_int, value);
95 ATF_TC_HEAD(sigqueue_err, tc)
97 atf_tc_set_md_var(tc, "descr", "Test errors from sigqueue(3)");
100 ATF_TC_BODY(sigqueue_err, tc)
102 static union sigval sv;
105 ATF_REQUIRE_ERRNO(EINVAL, sigqueue(getpid(), -1, sv) == -1);
108 static int signals[] = {
109 SIGINT, SIGRTMIN + 1, SIGINT, SIGRTMIN + 0, SIGRTMIN + 2,
110 SIGQUIT, SIGRTMIN + 1
113 #define CNT __arraycount(signals)
115 #define CNT (sizeof(signals) / sizeof(signals[0]))
118 static sig_atomic_t count = 0;
119 static int delivered[CNT];
122 myhandler(int signo, siginfo_t *info, void *context)
124 delivered[count++] = signo;
128 asc(const void *a, const void *b)
130 const int *ia = a, *ib = b;
135 * given a array of signals to be delivered in tosend of size len
136 * place in ordered the signals to be delivered in delivery order
137 * and return the number of signals that should be delivered
140 sigorder(int *ordered, const int *tosend, size_t len)
142 memcpy(ordered, tosend, len * sizeof(*tosend));
143 qsort(ordered, len, sizeof(*ordered), asc);
148 for (i = 0, j = 0; i < len - 1; i++) {
149 if (ordered[i] >= SIGRTMIN)
153 while (ordered[i] == ordered[j] && j < len)
157 ordered[i + 1] = ordered[j];
163 ATF_TC_HEAD(sigqueue_rt, tc)
165 atf_tc_set_md_var(tc, "descr", "Test queuing of real-time signals");
168 ATF_TC_BODY(sigqueue_rt, tc)
172 struct sigaction act;
174 struct sigaction oact[CNT];
177 ndelivered = sigorder(ordered, signals, CNT);
179 act.sa_flags = SA_SIGINFO;
180 act.sa_sigaction = myhandler;
181 sigemptyset(&act.sa_mask);
182 for (size_t i = 0; i < ndelivered; i++)
183 ATF_REQUIRE(sigaction(ordered[i], &act, &oact[i]) != -1);
190 for (size_t i = 0; i < CNT; i++)
191 sigaddset(&mask, signals[i]);
193 ATF_REQUIRE(sigprocmask(SIG_BLOCK, &mask, &orig) != -1);
195 for (size_t i = 0; i < CNT; i++)
196 ATF_REQUIRE(sigqueue(pid, signals[i], val) != -1);
198 ATF_REQUIRE(sigprocmask(SIG_UNBLOCK, &mask, &orig) != -1);
200 ATF_REQUIRE_MSG((size_t)count == ndelivered,
201 "count %zu != ndelivered %zu", (size_t)count, ndelivered);
202 for (size_t i = 0; i < ndelivered; i++)
203 ATF_REQUIRE_MSG(ordered[i] == delivered[i],
204 "%zu: ordered %d != delivered %d",
205 i, ordered[i], delivered[i]);
207 for (size_t i = 0; i < ndelivered; i++)
208 ATF_REQUIRE(sigaction(signals[i], &oact[i], NULL) != -1);
214 ATF_TP_ADD_TC(tp, sigqueue_basic);
215 ATF_TP_ADD_TC(tp, sigqueue_err);
216 ATF_TP_ADD_TC(tp, sigqueue_rt);
218 return atf_no_error();