1 /* $NetBSD: t_condwait.c,v 1.10 2022/12/11 10:02:53 kre Exp $ */
2
3 /*
4 * Copyright (c) 2013 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 #include <sys/cdefs.h>
29 __RCSID("$NetBSD: t_condwait.c,v 1.10 2022/12/11 10:02:53 kre Exp $");
30
31 #include <sys/time.h>
32 #include <errno.h>
33 #include <pthread.h>
34 #include <stdio.h>
35 #include <stdlib.h>
36 #include <string.h>
37 #include <time.h>
38 #include <unistd.h>
39
40 #include <atf-c.h>
41
42 #include "isqemu.h"
43
44 #include "h_common.h"
45
46 #define WAITTIME 2 /* Timeout wait in seconds */
47
48 static const int debug = 1;
49
50 static void *
run(void * param)51 run(void *param)
52 {
53 struct timespec ts, to, te;
54 clockid_t clck;
55 pthread_condattr_t attr;
56 pthread_cond_t cond;
57 pthread_mutex_t m = PTHREAD_MUTEX_INITIALIZER;
58 int ret = 0;
59
60
61 clck = *(clockid_t *)param;
62 PTHREAD_REQUIRE(pthread_condattr_init(&attr));
63 PTHREAD_REQUIRE(pthread_condattr_setclock(&attr, clck));
64 pthread_cond_init(&cond, &attr);
65
66 ATF_REQUIRE_EQ((ret = pthread_mutex_lock(&m)), 0);
67
68 ATF_REQUIRE_EQ(clock_gettime(clck, &ts), 0);
69 to = ts;
70
71 if (debug)
72 printf("started: %lld.%09ld sec\n", (long long)to.tv_sec,
73 to.tv_nsec);
74
75 ts.tv_sec += WAITTIME; /* Timeout wait */
76
77 switch (ret = pthread_cond_timedwait(&cond, &m, &ts)) {
78 case ETIMEDOUT:
79 /* Timeout */
80 ATF_REQUIRE_EQ(clock_gettime(clck, &te), 0);
81 if (debug) {
82 printf("timeout: %lld.%09ld sec\n",
83 (long long)te.tv_sec, te.tv_nsec);
84 timespecsub(&te, &to, &to);
85 printf("elapsed: %lld.%09ld sec\n",
86 (long long)to.tv_sec, to.tv_nsec);
87 }
88 if (clck == CLOCK_MONOTONIC)
89 ATF_REQUIRE(timespeccmp(&te, &ts, >=));
90 break;
91 case 0:
92 atf_tc_fail("pthread_cond_timedwait returned before timeout");
93 break;
94 default:
95 ATF_REQUIRE_MSG(0, "pthread_cond_timedwait: %s", strerror(ret));
96 }
97
98 ATF_REQUIRE_MSG(!(ret = pthread_mutex_unlock(&m)),
99 "pthread_mutex_unlock: %s", strerror(ret));
100 pthread_exit(&ret);
101 }
102
103 static void
cond_wait(clockid_t clck,const char * msg)104 cond_wait(clockid_t clck, const char *msg) {
105 pthread_t child;
106
107 if (debug)
108 printf( "**** %s clock wait starting\n", msg);
109 ATF_REQUIRE_EQ(pthread_create(&child, NULL, run, &clck), 0);
110 ATF_REQUIRE_EQ(pthread_join(child, NULL), 0); /* wait for terminate */
111 if (debug)
112 printf( "**** %s clock wait ended\n", msg);
113 }
114
115 ATF_TC(cond_wait_real);
ATF_TC_HEAD(cond_wait_real,tc)116 ATF_TC_HEAD(cond_wait_real, tc)
117 {
118 atf_tc_set_md_var(tc, "descr", "Checks pthread_cond_timedwait "
119 "with CLOCK_REALTIME");
120 }
121
ATF_TC_BODY(cond_wait_real,tc)122 ATF_TC_BODY(cond_wait_real, tc) {
123 cond_wait(CLOCK_REALTIME, "CLOCK_REALTIME");
124 }
125
126 ATF_TC(cond_wait_mono);
ATF_TC_HEAD(cond_wait_mono,tc)127 ATF_TC_HEAD(cond_wait_mono, tc)
128 {
129 atf_tc_set_md_var(tc, "descr", "Checks pthread_cond_timedwait "
130 "with CLOCK_MONOTONIC");
131 }
132
ATF_TC_BODY(cond_wait_mono,tc)133 ATF_TC_BODY(cond_wait_mono, tc) {
134 cond_wait(CLOCK_MONOTONIC, "CLOCK_MONOTONIC");
135 }
136
ATF_TP_ADD_TCS(tp)137 ATF_TP_ADD_TCS(tp)
138 {
139 ATF_TP_ADD_TC(tp, cond_wait_real);
140 ATF_TP_ADD_TC(tp, cond_wait_mono);
141 return atf_no_error();
142 }
143