t_rwlock.c revision 272343 
1/* $NetBSD: t_rwlock.c,v 1.1 2010/07/16 15:42:53 jmmv Exp $ */
2
3/*
4 * Copyright (c) 2008 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29/*-
30 * Copyright (c)2004 YAMAMOTO Takashi,
31 * All rights reserved.
32 *
33 * Redistribution and use in source and binary forms, with or without
34 * modification, are permitted provided that the following conditions
35 * are met:
36 * 1. Redistributions of source code must retain the above copyright
37 *    notice, this list of conditions and the following disclaimer.
38 * 2. Redistributions in binary form must reproduce the above copyright
39 *    notice, this list of conditions and the following disclaimer in the
40 *    documentation and/or other materials provided with the distribution.
41 *
42 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
43 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
44 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
45 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
46 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
47 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
48 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
49 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
50 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
51 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
52 * SUCH DAMAGE.
53 */
54
55#include <sys/cdefs.h>
56__COPYRIGHT("@(#) Copyright (c) 2008\
57 The NetBSD Foundation, inc. All rights reserved.");
58__RCSID("$NetBSD: t_rwlock.c,v 1.1 2010/07/16 15:42:53 jmmv Exp $");
59
60#include <errno.h>
61#include <pthread.h>
62#include <stdlib.h>
63#include <string.h>
64
65#include <atf-c.h>
66
67#include "h_common.h"
68
69pthread_rwlock_t lk;
70
71struct timespec to;
72
73/* ARGSUSED */
74static void *
75do_nothing(void *dummy)
76{
77	return NULL;
78}
79
80ATF_TC(rwlock1);
81ATF_TC_HEAD(rwlock1, tc)
82{
83	atf_tc_set_md_var(tc, "descr", "Checks read/write locks");
84}
85ATF_TC_BODY(rwlock1, tc)
86{
87	int error;
88	pthread_t t;
89
90	PTHREAD_REQUIRE(pthread_create(&t, NULL, do_nothing, NULL));
91	PTHREAD_REQUIRE(pthread_rwlock_init(&lk, NULL));
92	PTHREAD_REQUIRE(pthread_rwlock_rdlock(&lk));
93	PTHREAD_REQUIRE(pthread_rwlock_rdlock(&lk));
94	PTHREAD_REQUIRE(pthread_rwlock_unlock(&lk));
95
96	ATF_REQUIRE_EQ(pthread_rwlock_trywrlock(&lk), EBUSY);
97
98	ATF_REQUIRE_EQ_MSG(clock_gettime(CLOCK_REALTIME, &to), 0,
99		"%s", strerror(errno));
100	to.tv_sec++;
101	error = pthread_rwlock_timedwrlock(&lk, &to);
102	ATF_REQUIRE_MSG(error == ETIMEDOUT || error == EDEADLK,
103		"%s", strerror(error));
104
105	PTHREAD_REQUIRE(pthread_rwlock_unlock(&lk));
106
107	ATF_REQUIRE_EQ_MSG(clock_gettime(CLOCK_REALTIME, &to), 0,
108						"%s", strerror(errno));
109	to.tv_sec++;
110	PTHREAD_REQUIRE(pthread_rwlock_timedwrlock(&lk, &to));
111
112	ATF_REQUIRE_EQ_MSG(clock_gettime(CLOCK_REALTIME, &to), 0,
113						"%s", strerror(errno));
114	to.tv_sec++;
115	error = pthread_rwlock_timedwrlock(&lk, &to);
116	ATF_REQUIRE_MSG(error == ETIMEDOUT || error == EDEADLK,
117		"%s", strerror(error));
118}
119
120ATF_TP_ADD_TCS(tp)
121{
122	ATF_TP_ADD_TC(tp, rwlock1);
123
124	return atf_no_error();
125}
126