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