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d614a753 | 1 | /* Copyright (C) 2002-2020 Free Software Foundation, Inc. |
76a50749 UD |
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 | |
59ba27a6 | 16 | License along with the GNU C Library; if not, see |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
76a50749 UD |
18 | |
19 | #include <errno.h> | |
20 | #include <pthread.h> | |
21 | #include <stdio.h> | |
2c5567a0 | 22 | #include <stdlib.h> |
76a50749 UD |
23 | |
24 | ||
b2f05465 UD |
25 | static pthread_mutex_t m; |
26 | static pthread_barrier_t b; | |
27 | ||
28 | ||
29 | static void * | |
30 | tf (void *arg) | |
31 | { | |
32 | int e = pthread_mutex_unlock (&m); | |
33 | if (e == 0) | |
34 | { | |
35 | puts ("child: 1st mutex_unlock succeeded"); | |
36 | exit (1); | |
37 | } | |
38 | else if (e != EPERM) | |
39 | { | |
40 | puts ("child: 1st mutex_unlock error != EPERM"); | |
41 | exit (1); | |
42 | } | |
43 | ||
44 | e = pthread_mutex_trylock (&m); | |
45 | if (e == 0) | |
46 | { | |
47 | puts ("child: 1st trylock suceeded"); | |
48 | exit (1); | |
49 | } | |
50 | if (e != EBUSY) | |
51 | { | |
52 | puts ("child: 1st trylock didn't return EBUSY"); | |
53 | exit (1); | |
54 | } | |
55 | ||
56 | e = pthread_barrier_wait (&b); | |
57 | if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) | |
58 | { | |
59 | puts ("child: 1st barrier_wait failed"); | |
60 | exit (1); | |
61 | } | |
62 | ||
63 | e = pthread_barrier_wait (&b); | |
64 | if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) | |
65 | { | |
66 | puts ("child: 2nd barrier_wait failed"); | |
67 | exit (1); | |
68 | } | |
69 | ||
70 | e = pthread_mutex_unlock (&m); | |
71 | if (e == 0) | |
72 | { | |
73 | puts ("child: 2nd mutex_unlock succeeded"); | |
74 | exit (1); | |
75 | } | |
76 | else if (e != EPERM) | |
77 | { | |
78 | puts ("child: 2nd mutex_unlock error != EPERM"); | |
79 | exit (1); | |
80 | } | |
81 | ||
82 | if (pthread_mutex_trylock (&m) != 0) | |
83 | { | |
84 | puts ("child: 2nd trylock failed"); | |
85 | exit (1); | |
86 | } | |
87 | ||
88 | if (pthread_mutex_unlock (&m) != 0) | |
89 | { | |
90 | puts ("child: 3rd mutex_unlock failed"); | |
91 | exit (1); | |
92 | } | |
93 | ||
94 | return NULL; | |
95 | } | |
96 | ||
97 | ||
76a50749 UD |
98 | static int |
99 | do_test (void) | |
100 | { | |
76a50749 UD |
101 | pthread_mutexattr_t a; |
102 | int e; | |
103 | ||
104 | if (pthread_mutexattr_init (&a) != 0) | |
105 | { | |
106 | puts ("mutexattr_init failed"); | |
df47504c | 107 | return 1; |
76a50749 UD |
108 | } |
109 | ||
110 | if (pthread_mutexattr_settype (&a, PTHREAD_MUTEX_ERRORCHECK) != 0) | |
111 | { | |
112 | puts ("mutexattr_settype failed"); | |
df47504c | 113 | return 1; |
0ecb606c | 114 | } |
0ecb606c | 115 | |
df47504c UD |
116 | #ifdef ENABLE_PI |
117 | if (pthread_mutexattr_setprotocol (&a, PTHREAD_PRIO_INHERIT) != 0) | |
0ecb606c | 118 | { |
df47504c UD |
119 | puts ("pthread_mutexattr_setprotocol failed"); |
120 | return 1; | |
121 | } | |
122 | #endif | |
123 | ||
124 | e = pthread_mutex_init (&m, &a); | |
125 | if (e != 0) | |
126 | { | |
127 | #ifdef ENABLE_PI | |
128 | if (e == ENOTSUP) | |
129 | { | |
130 | puts ("PI mutexes unsupported"); | |
131 | return 0; | |
132 | } | |
133 | #endif | |
76a50749 | 134 | puts ("mutex_init failed"); |
df47504c | 135 | return 1; |
b2f05465 UD |
136 | } |
137 | ||
138 | if (pthread_barrier_init (&b, NULL, 2) != 0) | |
139 | { | |
140 | puts ("barrier_init failed"); | |
df47504c | 141 | return 1; |
b2f05465 UD |
142 | } |
143 | ||
df47504c UD |
144 | e = pthread_mutex_unlock (&m); |
145 | if (e == 0) | |
b2f05465 UD |
146 | { |
147 | puts ("1st mutex_unlock succeeded"); | |
df47504c | 148 | return 1; |
b2f05465 UD |
149 | } |
150 | else if (e != EPERM) | |
151 | { | |
152 | puts ("1st mutex_unlock error != EPERM"); | |
df47504c | 153 | return 1; |
76a50749 UD |
154 | } |
155 | ||
156 | if (pthread_mutex_lock (&m) != 0) | |
157 | { | |
158 | puts ("mutex_lock failed"); | |
df47504c | 159 | return 1; |
76a50749 UD |
160 | } |
161 | ||
df47504c UD |
162 | e = pthread_mutex_lock (&m); |
163 | if (e == 0) | |
76a50749 UD |
164 | { |
165 | puts ("2nd mutex_lock succeeded"); | |
df47504c | 166 | return 1; |
76a50749 UD |
167 | } |
168 | else if (e != EDEADLK) | |
169 | { | |
170 | puts ("2nd mutex_lock error != EDEADLK"); | |
df47504c | 171 | return 1; |
b2f05465 UD |
172 | } |
173 | ||
174 | pthread_t th; | |
175 | if (pthread_create (&th, NULL, tf, NULL) != 0) | |
176 | { | |
177 | puts ("create failed"); | |
df47504c | 178 | return 1; |
b2f05465 UD |
179 | } |
180 | ||
181 | e = pthread_barrier_wait (&b); | |
182 | if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) | |
183 | { | |
184 | puts ("1st barrier_wait failed"); | |
df47504c | 185 | return 1; |
76a50749 UD |
186 | } |
187 | ||
188 | if (pthread_mutex_unlock (&m) != 0) | |
189 | { | |
b2f05465 | 190 | puts ("2nd mutex_unlock failed"); |
df47504c | 191 | return 1; |
76a50749 UD |
192 | } |
193 | ||
df47504c UD |
194 | e = pthread_mutex_unlock (&m); |
195 | if (e == 0) | |
76a50749 | 196 | { |
b2f05465 | 197 | puts ("3rd mutex_unlock succeeded"); |
df47504c | 198 | return 1; |
76a50749 UD |
199 | } |
200 | else if (e != EPERM) | |
201 | { | |
b2f05465 | 202 | puts ("3rd mutex_unlock error != EPERM"); |
df47504c | 203 | return 1; |
b2f05465 UD |
204 | } |
205 | ||
206 | e = pthread_barrier_wait (&b); | |
207 | if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) | |
208 | { | |
209 | puts ("2nd barrier_wait failed"); | |
df47504c | 210 | return 1; |
b2f05465 UD |
211 | } |
212 | ||
213 | if (pthread_join (th, NULL) != 0) | |
214 | { | |
215 | puts ("join failed"); | |
df47504c | 216 | return 1; |
76a50749 UD |
217 | } |
218 | ||
219 | if (pthread_mutex_destroy (&m) != 0) | |
220 | { | |
221 | puts ("mutex_destroy failed"); | |
df47504c | 222 | return 1; |
b2f05465 UD |
223 | } |
224 | ||
225 | if (pthread_barrier_destroy (&b) != 0) | |
226 | { | |
227 | puts ("barrier_destroy failed"); | |
df47504c | 228 | return 1; |
76a50749 UD |
229 | } |
230 | ||
231 | if (pthread_mutexattr_destroy (&a) != 0) | |
232 | { | |
233 | puts ("mutexattr_destroy failed"); | |
df47504c | 234 | return 1; |
76a50749 UD |
235 | } |
236 | ||
237 | return 0; | |
238 | } | |
239 | ||
240 | #define TEST_FUNCTION do_test () | |
241 | #include "../test-skeleton.c" |