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MFC r314450,r313439:
[FreeBSD/stable/10.git] / contrib / netbsd-tests / lib / libpthread / t_condwait.c
1 /* $NetBSD: t_condwait.c,v 1.5 2017/01/16 16:29:19 christos 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 1.5 2017/01/16 16:29:19 christos 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 secound */
47
48 static const int debug = 1;
49
50 static void *
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                 timespecsub(&te, &to, &to);
82                 if (debug) {
83                         printf("timeout: %lld.%09ld sec\n",
84                             (long long)te.tv_sec, te.tv_nsec);
85                         printf("elapsed: %lld.%09ld sec\n",
86                             (long long)to.tv_sec, to.tv_nsec);
87                 }
88                 if (isQEMU()) {
89                         double to_seconds = to.tv_sec + 1e-9 * to.tv_nsec;
90                         ATF_REQUIRE(to_seconds >= WAITTIME * 0.9);
91                         /* Loose upper limit because of qemu timing bugs */
92                         ATF_REQUIRE(to_seconds < WAITTIME * 2.5);
93                 } else {
94                         ATF_REQUIRE_EQ(to.tv_sec, WAITTIME);
95                 }
96                 break;
97         default:
98                 ATF_REQUIRE_MSG(0, "pthread_cond_timedwait: %s", strerror(ret));
99         }
100
101         ATF_REQUIRE_MSG(!(ret = pthread_mutex_unlock(&m)),
102             "pthread_mutex_unlock: %s", strerror(ret));
103         pthread_exit(&ret);
104 }
105
106 static void
107 cond_wait(clockid_t clck, const char *msg) {
108         pthread_t child;
109
110         if (debug)
111                 printf( "**** %s clock wait starting\n", msg);
112         ATF_REQUIRE_EQ(pthread_create(&child, NULL, run, &clck), 0);
113         ATF_REQUIRE_EQ(pthread_join(child, NULL), 0); /* wait for terminate */
114         if (debug)
115                 printf( "**** %s clock wait ended\n", msg);
116 }
117
118 ATF_TC(cond_wait_real);
119 ATF_TC_HEAD(cond_wait_real, tc)
120 {
121         atf_tc_set_md_var(tc, "descr", "Checks pthread_cond_timedwait "
122             "with CLOCK_REALTIME");
123 }
124
125 ATF_TC_BODY(cond_wait_real, tc) {
126         cond_wait(CLOCK_REALTIME, "CLOCK_REALTIME");
127 }
128
129 ATF_TC(cond_wait_mono);
130 ATF_TC_HEAD(cond_wait_mono, tc)
131 {
132         atf_tc_set_md_var(tc, "descr", "Checks pthread_cond_timedwait "
133             "with CLOCK_MONOTONIC");
134 }
135
136 ATF_TC_BODY(cond_wait_mono, tc) {
137         cond_wait(CLOCK_MONOTONIC, "CLOCK_MONOTONIC");
138 }
139
140 ATF_TP_ADD_TCS(tp)
141 {
142         ATF_TP_ADD_TC(tp, cond_wait_real);
143         ATF_TP_ADD_TC(tp, cond_wait_mono);
144         return 0;
145 }