t_join.c revision 314818 
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
43extern int check_stack_alignment(void);
44#endif
45
46#define STACKSIZE	65536
47
48static bool error;
49
50static void *threadfunc1(void *);
51static void *threadfunc2(void *);
52
53ATF_TC(pthread_join);
54ATF_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
61ATF_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
69static void *
70threadfunc1(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
145static void *
146threadfunc2(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
171ATF_TP_ADD_TCS(tp)
172{
173
174	ATF_TP_ADD_TC(tp, pthread_join);
175
176	return atf_no_error();
177}
178