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1 | /* Copyright (C) 2002-2016 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 | ||
34 | static int | |
35 | do_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 TIMEOUT 4 | |
202 | #define TEST_FUNCTION do_test () | |
203 | #include "../test-skeleton.c" |