t_join.c revision 276478 
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#ifdef __FreeBSD__
41#include <pthread_np.h>
42#endif
43
44#include "h_common.h"
45
46#ifdef CHECK_STACK_ALIGNMENT
47extern int check_stack_alignment(void);
48#endif
49
50#define STACKSIZE	65536
51
52static bool error;
53
54static void *threadfunc1(void *);
55static void *threadfunc2(void *);
56
57ATF_TC(pthread_join);
58ATF_TC_HEAD(pthread_join, tc)
59{
60
61	atf_tc_set_md_var(tc, "descr",
62	    "Checks basic error conditions in pthread_join(3)");
63}
64
65ATF_TC_BODY(pthread_join, tc)
66{
67	pthread_t thread;
68
69	PTHREAD_REQUIRE(pthread_create(&thread, NULL, threadfunc1, NULL));
70	PTHREAD_REQUIRE(pthread_join(thread, NULL));
71}
72
73static void *
74threadfunc1(void *arg)
75{
76	pthread_t thread[25];
77	pthread_t caller;
78	void *val = NULL;
79	uintptr_t i;
80	int rv;
81	pthread_attr_t attr;
82
83	caller = pthread_self();
84
85#ifdef CHECK_STACK_ALIGNMENT
86	/*
87	 * Check alignment of thread stack, if supported.
88	 */
89	ATF_REQUIRE(check_stack_alignment());
90#endif
91
92	/*
93	 * The behavior is undefined, but should error
94	 * out, if we try to join the calling thread.
95	 */
96	rv = pthread_join(caller, NULL);
97
98	/*
99	 * The specification recommends EDEADLK.
100	 */
101	ATF_REQUIRE(rv != 0);
102	ATF_REQUIRE_EQ(rv, EDEADLK);
103
104	ATF_REQUIRE(pthread_attr_init(&attr) == 0);
105
106	for (i = 0; i < __arraycount(thread); i++) {
107
108		error = true;
109
110		ATF_REQUIRE(pthread_attr_setstacksize(&attr, STACKSIZE * (i + 1)) == 0);
111
112		rv = pthread_create(&thread[i], &attr, threadfunc2, (void *)i);
113
114		ATF_REQUIRE_EQ(rv, 0);
115
116		/*
117		 * Check join and exit condition.
118		 */
119		PTHREAD_REQUIRE(pthread_join(thread[i], &val));
120
121		ATF_REQUIRE_EQ(error, false);
122
123		ATF_REQUIRE(val != NULL);
124		ATF_REQUIRE(val == (void *)(i + 1));
125
126		/*
127		 * Once the thread has returned, ESRCH should
128		 * again follow if we try to join it again.
129		 */
130		rv = pthread_join(thread[i], NULL);
131
132		ATF_REQUIRE_EQ(rv, ESRCH);
133
134		/*
135		 * Try to detach the exited thread.
136		 */
137		rv = pthread_detach(thread[i]);
138
139		ATF_REQUIRE(rv != 0);
140	}
141
142	ATF_REQUIRE(pthread_attr_destroy(&attr) == 0);
143
144	pthread_exit(NULL);
145
146	return NULL;
147}
148
149static void *
150threadfunc2(void *arg)
151{
152	static uintptr_t i = 0;
153	uintptr_t j;
154	pthread_attr_t attr;
155	size_t stacksize;
156
157	j = (uintptr_t)arg;
158
159#ifdef __FreeBSD__
160	pthread_attr_init(&attr);
161#endif
162	ATF_REQUIRE(pthread_attr_get_np(pthread_self(), &attr) == 0);
163	ATF_REQUIRE(pthread_attr_getstacksize(&attr, &stacksize) == 0);
164	ATF_REQUIRE(stacksize == STACKSIZE * (j + 1));
165	ATF_REQUIRE(pthread_attr_destroy(&attr) == 0);
166
167	if (i++ == j)
168		error = false;
169
170	pthread_exit((void *)i);
171
172	return NULL;
173}
174
175ATF_TP_ADD_TCS(tp)
176{
177
178	ATF_TP_ADD_TC(tp, pthread_join);
179
180	return atf_no_error();
181}
182