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1/* Copyright (C) 2002-2019 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
18
19#include <errno.h>
20#include <pthread.h>
21#include <stdio.h>
22#include <time.h>
23#include <unistd.h>
24#include <sys/time.h>
25#include <stdint.h>
26#include <config.h>
27
28
29#ifndef TYPE
30# define TYPE PTHREAD_MUTEX_NORMAL
31#endif
32
33
34static int
35do_test (void)
36{
37 pthread_mutex_t m;
38 struct timespec ts;
39 struct timeval tv;
40 struct timeval tv2;
41 int err;
42 pthread_mutexattr_t a;
43
44 if (pthread_mutexattr_init (&a) != 0)
45 {
46 puts ("mutexattr_init failed");
47 return 1;
48 }
49
50 if (pthread_mutexattr_settype (&a, TYPE) != 0)
51 {
52 puts ("mutexattr_settype failed");
53 return 1;
54 }
55
56#ifdef ENABLE_PI
57 if (pthread_mutexattr_setprotocol (&a, PTHREAD_PRIO_INHERIT) != 0)
58 {
59 puts ("pthread_mutexattr_setprotocol failed");
60 return 1;
61 }
62#endif
63
64 err = pthread_mutex_init (&m, &a);
65 if (err != 0)
66 {
67#ifdef ENABLE_PI
68 if (err == ENOTSUP)
69 {
70 puts ("PI mutexes unsupported");
71 return 0;
72 }
73#endif
74 puts ("mutex_init failed");
75 return 1;
76 }
77
78 if (pthread_mutexattr_destroy (&a) != 0)
79 {
80 puts ("mutexattr_destroy failed");
81 return 1;
82 }
83
84 if (pthread_mutex_lock (&m) != 0)
85 {
86 puts ("mutex_lock failed");
87 return 1;
88 }
89
90 if (pthread_mutex_trylock (&m) == 0)
91 {
92 puts ("mutex_trylock succeeded");
93 return 1;
94 }
95
96 gettimeofday (&tv, NULL);
97 TIMEVAL_TO_TIMESPEC (&tv, &ts);
98
99 ts.tv_sec += 2; /* Wait 2 seconds. */
100
101 err = pthread_mutex_timedlock (&m, &ts);
102 if (err == 0)
103 {
104 puts ("timedlock succeeded");
105 return 1;
106 }
107 else if (err != ETIMEDOUT)
108 {
109 printf ("timedlock error != ETIMEDOUT: %d\n", err);
110 return 1;
111 }
112 else
113 {
114 int clk_tck = sysconf (_SC_CLK_TCK);
115
116 gettimeofday (&tv2, NULL);
117
118 tv2.tv_sec -= tv.tv_sec;
119 tv2.tv_usec -= tv.tv_usec;
120 if (tv2.tv_usec < 0)
121 {
122 tv2.tv_usec += 1000000;
123 tv2.tv_sec -= 1;
124 }
125
126 /* Be a bit tolerant, add one CLK_TCK. */
127 tv2.tv_usec += 1000000 / clk_tck;
128 if (tv2.tv_usec >= 1000000)
129 {
130 tv2.tv_usec -= 1000000;
131 ++tv2.tv_sec;
132 }
133
134 if (tv2.tv_sec < 2)
135 {
136 printf ("premature timeout: %jd.%06jd difference\n",
137 (intmax_t) tv2.tv_sec, (intmax_t) tv2.tv_usec);
138 return 1;
139 }
140 }
141
142 (void) gettimeofday (&tv, NULL);
143 TIMEVAL_TO_TIMESPEC (&tv, &ts);
144
145 ts.tv_sec += 2; /* Wait 2 seconds. */
146 /* The following makes the ts value invalid. */
147 ts.tv_nsec += 1000000000;
148
149 err = pthread_mutex_timedlock (&m, &ts);
150 if (err == 0)
151 {
152 puts ("2nd timedlock succeeded");
153 return 1;
154 }
155 else if (err != EINVAL)
156 {
157 printf ("2nd timedlock error != EINVAL: %d\n", err);
158 return 1;
159 }
160
161 if (pthread_mutex_unlock (&m) != 0)
162 {
163 puts ("mutex_unlock failed");
164 return 1;
165 }
166
167 (void) gettimeofday (&tv, NULL);
168 TIMEVAL_TO_TIMESPEC (&tv, &ts);
169
170 ts.tv_sec += 2; /* Wait 2 seconds. */
171 if (pthread_mutex_timedlock (&m, &ts) != 0)
172 {
173 puts ("3rd timedlock failed");
174 }
175
176 (void) gettimeofday (&tv2, NULL);
177
178 /* Check that timedlock didn't delay. We use a limit of 0.1 secs. */
179 timersub (&tv2, &tv, &tv2);
180 if (tv2.tv_sec > 0 || tv2.tv_usec > 100000)
181 {
182 puts ("3rd timedlock didn't return right away");
183 return 1;
184 }
185
186 if (pthread_mutex_unlock (&m) != 0)
187 {
188 puts ("final mutex_unlock failed");
189 return 1;
190 }
191
192 if (pthread_mutex_destroy (&m) != 0)
193 {
194 puts ("mutex_destroy failed");
195 return 1;
196 }
197
198 return 0;
199}
200
201#define TEST_FUNCTION do_test ()
202#include "../test-skeleton.c"
203

Warning: That file was not part of the compilation database. It may have many parsing errors.