xref: /xnu-11215.41.3/tests/freebsd_waitpid_nohang.c (revision 33de042d024d46de5ff4e89f2471de6608e37fa4)
1 /*-
2  * Copyright (c) 2016 Jilles Tjoelker
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  */
26 
27 #include <sys/cdefs.h>
28 #include <sys/wait.h>
29 
30 #include <darwintest.h>
31 #include <signal.h>
32 #include <unistd.h>
33 
34 T_GLOBAL_META(T_META_RUN_CONCURRENTLY(true));
35 
36 T_DECL(waitpid_nohang, "FreeBSDarwin--waitpid_nohang", T_META_TAG_VM_PREFERRED)
37 {
38 	pid_t child, pid;
39 	int status, r;
40 	siginfo_t siginfo;
41 
42 	child = fork();
43 	T_ASSERT_POSIX_SUCCESS(child, "child forked successfully");
44 	if (child == 0) {
45 		sleep(10);
46 		_exit(1);
47 	}
48 
49 	status = 42;
50 	pid = waitpid(child, &status, WNOHANG);
51 	T_ASSERT_POSIX_ZERO(pid, "waitpid call is successful");
52 	T_EXPECT_EQ(status, 42, "status is unaffected as expected");
53 
54 	r = kill(child, SIGTERM);
55 	T_ASSERT_POSIX_ZERO(r, "signal sent successfully");
56 	r = waitid(P_PID, (id_t)child, &siginfo, WEXITED | WNOWAIT);
57 	T_ASSERT_POSIX_SUCCESS(r, "waitid call successful");
58 
59 	status = -1;
60 	pid = waitpid(child, &status, WNOHANG);
61 	T_ASSERT_EQ(pid, child, "waitpid returns correct pid");
62 	T_EXPECT_EQ(WIFSIGNALED(status), true, "child was signaled");
63 	T_EXPECT_EQ(WTERMSIG(status), SIGTERM, "child was sent SIGTERM");
64 }
65