1/* $NetBSD: t_ksem.c,v 1.1 2019/02/03 03:20:24 thorpej Exp $ */
2
3/*
4 * Copyright (c) 2019 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#include <sys/cdefs.h>
30__COPYRIGHT("@(#) Copyright (c) 2019\
31 The NetBSD Foundation, inc. All rights reserved.");
32__RCSID("$NetBSD: t_ksem.c,v 1.1 2019/02/03 03:20:24 thorpej Exp $");
33
34#include <sys/mman.h>
35#include <sys/wait.h>
36
37#include <errno.h>
38#include <fcntl.h>
39#include <stdio.h>
40#include <unistd.h>
41
42#include <atf-c.h>
43
44#define	_LIBC
45#include <sys/ksem.h>
46
47ATF_TC(close_on_unnamed);
48ATF_TC_HEAD(close_on_unnamed, tc)
49{
50	atf_tc_set_md_var(tc, "descr",
51	    "test for correct error on close of unnamed semaphore");
52}
53ATF_TC_BODY(close_on_unnamed, tc)
54{
55	intptr_t ksem;
56
57	/* _ksem_close() is invalid on unnamed semaphore. */
58	ksem = 0;
59	ATF_REQUIRE_EQ(_ksem_init(0, &ksem), 0);
60	ATF_REQUIRE(_ksem_close(ksem) == -1 && errno == EINVAL);
61	ATF_REQUIRE_EQ(_ksem_destroy(ksem), 0);
62}
63
64ATF_TC(close_on_unnamed_pshared);
65ATF_TC_HEAD(close_on_unnamed_pshared, tc)
66{
67	atf_tc_set_md_var(tc, "descr",
68	    "test for correct error on close of unnamed pshared semaphore");
69}
70ATF_TC_BODY(close_on_unnamed_pshared, tc)
71{
72	intptr_t ksem;
73
74	/* Similar, but lifecycle of pshared is slightly different. */
75	ksem = KSEM_PSHARED;
76	ATF_REQUIRE_EQ(_ksem_init(0, &ksem), 0);
77	ATF_REQUIRE(_ksem_close(ksem) == -1 && errno == EINVAL);
78	ATF_REQUIRE_EQ(_ksem_destroy(ksem), 0);
79}
80
81ATF_TC_WITH_CLEANUP(destroy_on_named);
82ATF_TC_HEAD(destroy_on_named, tc)
83{
84	 atf_tc_set_md_var(tc, "descr",
85	     "test for correct error on destroy of named semaphore");
86}
87ATF_TC_BODY(destroy_on_named, tc)
88{
89	intptr_t ksem;
90
91	/* Exercise open-unlinked semaphore lifecycle. */
92	ATF_REQUIRE_EQ(_ksem_open("/ksem_x", O_CREAT | O_EXCL, 0644, 0, &ksem),
93	    0);
94	ATF_REQUIRE(_ksem_destroy(ksem) == -1 && errno == EINVAL);
95	ATF_REQUIRE_EQ(_ksem_close(ksem), 0);
96	ATF_REQUIRE_EQ(_ksem_unlink("/ksem_x"), 0);
97}
98ATF_TC_CLEANUP(destroy_on_named, tc)
99{
100	(void)_ksem_unlink("/ksem_x");
101}
102
103ATF_TC_WITH_CLEANUP(open_unlinked_lifecycle);
104ATF_TC_HEAD(open_unlinked_lifecycle, tc)
105{
106	atf_tc_set_md_var(tc, "descr",
107	    "Exercises lifecycle of open-unlined semaphores");
108}
109ATF_TC_BODY(open_unlinked_lifecycle, tc)
110{
111	intptr_t ksem, ksem1;
112	int val;
113
114	/* Exercise open-unlinked semaphore lifecycle. */
115	ATF_REQUIRE_EQ(_ksem_open("/ksem_b", O_CREAT | O_EXCL, 0644, 0, &ksem),
116	    0);
117	ATF_REQUIRE_EQ(_ksem_unlink("/ksem_b"), 0);
118	val = 255;
119	ATF_REQUIRE(_ksem_getvalue(ksem, &val) == 0 && val == 0);
120
121	ATF_REQUIRE_EQ(_ksem_open("/ksem_b", O_CREAT | O_EXCL, 0644, 1, &ksem1),
122	    0);
123	ATF_REQUIRE_EQ(_ksem_unlink("/ksem_b"), 0);
124	val = 255;
125	ATF_REQUIRE(_ksem_getvalue(ksem1, &val) == 0 && val == 1);
126
127	ATF_REQUIRE_EQ(_ksem_close(ksem), 0);
128	ATF_REQUIRE_EQ(_ksem_close(ksem1), 0);
129}
130ATF_TC_CLEANUP(open_unlinked_lifecycle, tc)
131{
132	(void)_ksem_unlink("/ksem_a");
133	(void)_ksem_unlink("/ksem_b");
134}
135
136ATF_TP_ADD_TCS(tp)
137{
138
139	ATF_TP_ADD_TC(tp, close_on_unnamed);
140	ATF_TP_ADD_TC(tp, close_on_unnamed_pshared);
141	ATF_TP_ADD_TC(tp, destroy_on_named);
142	ATF_TP_ADD_TC(tp, open_unlinked_lifecycle);
143
144	return atf_no_error();
145}
146