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bfff8b1b | 1 | /* Copyright (C) 2003-2017 Free Software Foundation, Inc. |
a7720b5e UD |
2 | This file is part of the GNU C Library. |
3 | Contributed by Ulrich Drepper <drepper@redhat.com>, 2003. | |
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 PE |
16 | License along with the GNU C Library; if not, see |
17 | <http://www.gnu.org/licenses/>. */ | |
a7720b5e UD |
18 | |
19 | #include <errno.h> | |
20 | #include <pthread.h> | |
21 | #include <stdio.h> | |
22 | #include <stdlib.h> | |
23 | #include <time.h> | |
24 | #include <sys/time.h> | |
25 | ||
26 | ||
27 | static pthread_cond_t cond = PTHREAD_COND_INITIALIZER; | |
28 | static pthread_mutex_t mut = PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP; | |
29 | ||
30 | static pthread_barrier_t bar; | |
31 | ||
32 | ||
33 | static void | |
34 | ch (void *arg) | |
35 | { | |
36 | int e = pthread_mutex_lock (&mut); | |
37 | if (e == 0) | |
38 | { | |
39 | puts ("mutex not locked at all by cond_wait"); | |
40 | exit (1); | |
41 | } | |
42 | ||
43 | if (e != EDEADLK) | |
44 | { | |
45 | puts ("no deadlock error signaled"); | |
46 | exit (1); | |
47 | } | |
48 | ||
49 | if (pthread_mutex_unlock (&mut) != 0) | |
50 | { | |
51 | puts ("ch: cannot unlock mutex"); | |
52 | exit (1); | |
53 | } | |
67b78ef9 UD |
54 | |
55 | puts ("ch done"); | |
a7720b5e UD |
56 | } |
57 | ||
58 | ||
59 | static void * | |
60 | tf1 (void *p) | |
61 | { | |
62 | int err; | |
63 | ||
64 | if (pthread_setcancelstate (PTHREAD_CANCEL_ENABLE, NULL) != 0 | |
65 | || pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, NULL) != 0) | |
66 | { | |
67 | puts ("cannot set cancellation options"); | |
68 | exit (1); | |
69 | } | |
70 | ||
71 | err = pthread_mutex_lock (&mut); | |
72 | if (err != 0) | |
73 | { | |
74 | puts ("child: cannot get mutex"); | |
75 | exit (1); | |
76 | } | |
77 | ||
78 | err = pthread_barrier_wait (&bar); | |
79 | if (err != 0 && err != PTHREAD_BARRIER_SERIAL_THREAD) | |
80 | { | |
81 | printf ("barrier_wait returned %d\n", err); | |
82 | exit (1); | |
83 | } | |
84 | ||
85 | puts ("child: got mutex; waiting"); | |
86 | ||
87 | pthread_cleanup_push (ch, NULL); | |
88 | ||
89 | pthread_cond_wait (&cond, &mut); | |
90 | ||
91 | pthread_cleanup_pop (0); | |
92 | ||
93 | puts ("child: cond_wait should not have returned"); | |
94 | ||
95 | return NULL; | |
96 | } | |
97 | ||
98 | ||
99 | static void * | |
100 | tf2 (void *p) | |
101 | { | |
102 | int err; | |
103 | ||
104 | if (pthread_setcancelstate (PTHREAD_CANCEL_ENABLE, NULL) != 0 | |
105 | || pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, NULL) != 0) | |
106 | { | |
107 | puts ("cannot set cancellation options"); | |
108 | exit (1); | |
109 | } | |
110 | ||
111 | err = pthread_mutex_lock (&mut); | |
112 | if (err != 0) | |
113 | { | |
114 | puts ("child: cannot get mutex"); | |
115 | exit (1); | |
116 | } | |
117 | ||
118 | err = pthread_barrier_wait (&bar); | |
119 | if (err != 0 && err != PTHREAD_BARRIER_SERIAL_THREAD) | |
120 | { | |
121 | printf ("barrier_wait returned %d\n", err); | |
122 | exit (1); | |
123 | } | |
124 | ||
125 | puts ("child: got mutex; waiting"); | |
126 | ||
127 | pthread_cleanup_push (ch, NULL); | |
128 | ||
129 | /* Current time. */ | |
130 | struct timeval tv; | |
131 | (void) gettimeofday (&tv, NULL); | |
132 | /* +1000 seconds in correct format. */ | |
133 | struct timespec ts; | |
134 | TIMEVAL_TO_TIMESPEC (&tv, &ts); | |
135 | ts.tv_sec += 1000; | |
136 | ||
137 | pthread_cond_timedwait (&cond, &mut, &ts); | |
138 | ||
139 | pthread_cleanup_pop (0); | |
140 | ||
141 | puts ("child: cond_wait should not have returned"); | |
142 | ||
143 | return NULL; | |
144 | } | |
145 | ||
146 | ||
147 | static int | |
148 | do_test (void) | |
149 | { | |
150 | pthread_t th; | |
151 | int err; | |
152 | ||
153 | printf ("&cond = %p\n&mut = %p\n", &cond, &mut); | |
154 | ||
155 | puts ("parent: get mutex"); | |
156 | ||
157 | err = pthread_barrier_init (&bar, NULL, 2); | |
158 | if (err != 0) | |
159 | { | |
160 | puts ("parent: cannot init barrier"); | |
161 | exit (1); | |
162 | } | |
163 | ||
164 | puts ("parent: create child"); | |
165 | ||
166 | err = pthread_create (&th, NULL, tf1, NULL); | |
167 | if (err != 0) | |
168 | { | |
169 | puts ("parent: cannot create thread"); | |
170 | exit (1); | |
171 | } | |
172 | ||
173 | puts ("parent: wait for child to lock mutex"); | |
174 | ||
175 | err = pthread_barrier_wait (&bar); | |
176 | if (err != 0 && err != PTHREAD_BARRIER_SERIAL_THREAD) | |
177 | { | |
178 | puts ("parent: cannot wait for barrier"); | |
179 | exit (1); | |
180 | } | |
181 | ||
182 | err = pthread_mutex_lock (&mut); | |
183 | if (err != 0) | |
184 | { | |
185 | puts ("parent: mutex_lock failed"); | |
186 | exit (1); | |
187 | } | |
188 | ||
189 | err = pthread_mutex_unlock (&mut); | |
190 | if (err != 0) | |
191 | { | |
192 | puts ("parent: mutex_unlock failed"); | |
193 | exit (1); | |
194 | } | |
195 | ||
196 | if (pthread_cancel (th) != 0) | |
197 | { | |
198 | puts ("cannot cancel thread"); | |
199 | exit (1); | |
200 | } | |
201 | ||
202 | void *r; | |
203 | err = pthread_join (th, &r); | |
204 | if (err != 0) | |
205 | { | |
206 | puts ("parent: failed to join"); | |
207 | exit (1); | |
208 | } | |
209 | ||
210 | if (r != PTHREAD_CANCELED) | |
211 | { | |
212 | puts ("child hasn't been canceled"); | |
213 | exit (1); | |
214 | } | |
215 | ||
216 | ||
217 | ||
218 | puts ("parent: create 2nd child"); | |
219 | ||
220 | err = pthread_create (&th, NULL, tf2, NULL); | |
221 | if (err != 0) | |
222 | { | |
223 | puts ("parent: cannot create thread"); | |
224 | exit (1); | |
225 | } | |
226 | ||
227 | puts ("parent: wait for child to lock mutex"); | |
228 | ||
229 | err = pthread_barrier_wait (&bar); | |
230 | if (err != 0 && err != PTHREAD_BARRIER_SERIAL_THREAD) | |
231 | { | |
232 | puts ("parent: cannot wait for barrier"); | |
233 | exit (1); | |
234 | } | |
235 | ||
236 | err = pthread_mutex_lock (&mut); | |
237 | if (err != 0) | |
238 | { | |
239 | puts ("parent: mutex_lock failed"); | |
240 | exit (1); | |
241 | } | |
242 | ||
243 | err = pthread_mutex_unlock (&mut); | |
244 | if (err != 0) | |
245 | { | |
246 | puts ("parent: mutex_unlock failed"); | |
247 | exit (1); | |
248 | } | |
249 | ||
250 | if (pthread_cancel (th) != 0) | |
251 | { | |
252 | puts ("cannot cancel thread"); | |
253 | exit (1); | |
254 | } | |
255 | ||
256 | err = pthread_join (th, &r); | |
257 | if (err != 0) | |
258 | { | |
259 | puts ("parent: failed to join"); | |
260 | exit (1); | |
261 | } | |
262 | ||
263 | if (r != PTHREAD_CANCELED) | |
264 | { | |
265 | puts ("child hasn't been canceled"); | |
266 | exit (1); | |
267 | } | |
268 | ||
269 | puts ("done"); | |
270 | ||
271 | return 0; | |
272 | } | |
273 | ||
274 | ||
275 | #define TEST_FUNCTION do_test () | |
276 | #include "../test-skeleton.c" |