xref: /freebsd/contrib/netbsd-tests/lib/libpthread/t_join.c (revision 1a36faad54665288ed4eb839d2a4699ae2ead45e)
1 /* $NetBSD: t_join.c,v 1.8 2012/03/12 20:17:16 joerg Exp $ */
2 
3 /*-
4  * Copyright (c) 2010 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Jukka Ruohonen.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
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.
18  *
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.
30  */
31 #include <sys/cdefs.h>
32 __RCSID("$NetBSD: t_join.c,v 1.8 2012/03/12 20:17:16 joerg Exp $");
33 
34 #include <errno.h>
35 #include <pthread.h>
36 #include <stdint.h>
37 
38 #include <atf-c.h>
39 
40 #include "h_common.h"
41 
42 #ifdef CHECK_STACK_ALIGNMENT
43 extern int check_stack_alignment(void);
44 #endif
45 
46 #define STACKSIZE	65536
47 
48 static bool error;
49 
50 static void *threadfunc1(void *);
51 static void *threadfunc2(void *);
52 
53 ATF_TC(pthread_join);
ATF_TC_HEAD(pthread_join,tc)54 ATF_TC_HEAD(pthread_join, tc)
55 {
56 
57 	atf_tc_set_md_var(tc, "descr",
58 	    "Checks basic error conditions in pthread_join(3)");
59 }
60 
ATF_TC_BODY(pthread_join,tc)61 ATF_TC_BODY(pthread_join, tc)
62 {
63 	pthread_t thread;
64 
65 	PTHREAD_REQUIRE(pthread_create(&thread, NULL, threadfunc1, NULL));
66 	PTHREAD_REQUIRE(pthread_join(thread, NULL));
67 }
68 
69 static void *
threadfunc1(void * arg)70 threadfunc1(void *arg)
71 {
72 	pthread_t thread[25];
73 	pthread_t caller;
74 	void *val = NULL;
75 	uintptr_t i;
76 	int rv;
77 	pthread_attr_t attr;
78 
79 	caller = pthread_self();
80 
81 #ifdef CHECK_STACK_ALIGNMENT
82 	/*
83 	 * Check alignment of thread stack, if supported.
84 	 */
85 	ATF_REQUIRE(check_stack_alignment());
86 #endif
87 
88 	/*
89 	 * The behavior is undefined, but should error
90 	 * out, if we try to join the calling thread.
91 	 */
92 	rv = pthread_join(caller, NULL);
93 
94 	/*
95 	 * The specification recommends EDEADLK.
96 	 */
97 	ATF_REQUIRE(rv != 0);
98 	ATF_REQUIRE_EQ(rv, EDEADLK);
99 
100 	ATF_REQUIRE(pthread_attr_init(&attr) == 0);
101 
102 	for (i = 0; i < __arraycount(thread); i++) {
103 
104 		error = true;
105 
106 		ATF_REQUIRE(pthread_attr_setstacksize(&attr, STACKSIZE * (i + 1)) == 0);
107 
108 		rv = pthread_create(&thread[i], &attr, threadfunc2, (void *)i);
109 
110 		ATF_REQUIRE_EQ(rv, 0);
111 
112 		/*
113 		 * Check join and exit condition.
114 		 */
115 		PTHREAD_REQUIRE(pthread_join(thread[i], &val));
116 
117 		ATF_REQUIRE_EQ(error, false);
118 
119 		ATF_REQUIRE(val != NULL);
120 		ATF_REQUIRE(val == (void *)(i + 1));
121 
122 		/*
123 		 * Once the thread has returned, ESRCH should
124 		 * again follow if we try to join it again.
125 		 */
126 		rv = pthread_join(thread[i], NULL);
127 
128 		ATF_REQUIRE_EQ(rv, ESRCH);
129 
130 		/*
131 		 * Try to detach the exited thread.
132 		 */
133 		rv = pthread_detach(thread[i]);
134 
135 		ATF_REQUIRE(rv != 0);
136 	}
137 
138 	ATF_REQUIRE(pthread_attr_destroy(&attr) == 0);
139 
140 	pthread_exit(NULL);
141 
142 	return NULL;
143 }
144 
145 static void *
threadfunc2(void * arg)146 threadfunc2(void *arg)
147 {
148 	static uintptr_t i = 0;
149 	uintptr_t j;
150 	pthread_attr_t attr;
151 	size_t stacksize;
152 
153 	j = (uintptr_t)arg;
154 
155 #ifdef __FreeBSD__
156 	pthread_attr_init(&attr);
157 #endif
158 	ATF_REQUIRE(pthread_attr_get_np(pthread_self(), &attr) == 0);
159 	ATF_REQUIRE(pthread_attr_getstacksize(&attr, &stacksize) == 0);
160 	ATF_REQUIRE(stacksize == STACKSIZE * (j + 1));
161 	ATF_REQUIRE(pthread_attr_destroy(&attr) == 0);
162 
163 	if (i++ == j)
164 		error = false;
165 
166 	pthread_exit((void *)i);
167 
168 	return NULL;
169 }
170 
ATF_TP_ADD_TCS(tp)171 ATF_TP_ADD_TCS(tp)
172 {
173 
174 	ATF_TP_ADD_TC(tp, pthread_join);
175 
176 	return atf_no_error();
177 }
178