1 /* $NetBSD: t_join.c,v 1.8 2012/03/12 20:17:16 joerg Exp $ */
4 * Copyright (c) 2010 The NetBSD Foundation, Inc.
7 * This code is derived from software contributed to The NetBSD Foundation
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
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.
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.
31 #include <sys/cdefs.h>
32 __RCSID("$NetBSD: t_join.c,v 1.8 2012/03/12 20:17:16 joerg Exp $");
41 #include <pthread_np.h>
46 #ifdef CHECK_STACK_ALIGNMENT
47 extern int check_stack_alignment(void);
50 #define STACKSIZE 65536
54 static void *threadfunc1(void *);
55 static void *threadfunc2(void *);
58 ATF_TC_HEAD(pthread_join, tc)
61 atf_tc_set_md_var(tc, "descr",
62 "Checks basic error conditions in pthread_join(3)");
65 ATF_TC_BODY(pthread_join, tc)
69 PTHREAD_REQUIRE(pthread_create(&thread, NULL, threadfunc1, NULL));
70 PTHREAD_REQUIRE(pthread_join(thread, NULL));
74 threadfunc1(void *arg)
83 caller = pthread_self();
85 #ifdef CHECK_STACK_ALIGNMENT
87 * Check alignment of thread stack, if supported.
89 ATF_REQUIRE(check_stack_alignment());
93 * The behavior is undefined, but should error
94 * out, if we try to join the calling thread.
96 rv = pthread_join(caller, NULL);
99 * The specification recommends EDEADLK.
101 ATF_REQUIRE(rv != 0);
102 ATF_REQUIRE_EQ(rv, EDEADLK);
104 ATF_REQUIRE(pthread_attr_init(&attr) == 0);
106 for (i = 0; i < __arraycount(thread); i++) {
110 ATF_REQUIRE(pthread_attr_setstacksize(&attr, STACKSIZE * (i + 1)) == 0);
112 rv = pthread_create(&thread[i], &attr, threadfunc2, (void *)i);
114 ATF_REQUIRE_EQ(rv, 0);
117 * Check join and exit condition.
119 PTHREAD_REQUIRE(pthread_join(thread[i], &val));
121 ATF_REQUIRE_EQ(error, false);
123 ATF_REQUIRE(val != NULL);
124 ATF_REQUIRE(val == (void *)(i + 1));
127 * Once the thread has returned, ESRCH should
128 * again follow if we try to join it again.
130 rv = pthread_join(thread[i], NULL);
132 ATF_REQUIRE_EQ(rv, ESRCH);
135 * Try to detach the exited thread.
137 rv = pthread_detach(thread[i]);
139 ATF_REQUIRE(rv != 0);
142 ATF_REQUIRE(pthread_attr_destroy(&attr) == 0);
150 threadfunc2(void *arg)
152 static uintptr_t i = 0;
160 pthread_attr_init(&attr);
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);
170 pthread_exit((void *)i);
178 ATF_TP_ADD_TC(tp, pthread_join);
180 return atf_no_error();