]>
Commit | Line | Data |
---|---|---|
47677f2e | 1 | /* Test sem_timedwait cancellation for contended case. |
d614a753 | 2 | Copyright (C) 2003-2020 Free Software Foundation, Inc. |
7726edc2 UD |
3 | This file is part of the GNU C Library. |
4 | Contributed by Ulrich Drepper <drepper@redhat.com>, 2003. | |
5 | ||
6 | The GNU C Library is free software; you can redistribute it and/or | |
7 | modify it under the terms of the GNU Lesser General Public | |
8 | License as published by the Free Software Foundation; either | |
9 | version 2.1 of the License, or (at your option) any later version. | |
10 | ||
11 | The GNU C Library is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | Lesser General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU Lesser General Public | |
59ba27a6 | 17 | License along with the GNU C Library; if not, see |
5a82c748 | 18 | <https://www.gnu.org/licenses/>. */ |
7726edc2 UD |
19 | |
20 | #include <errno.h> | |
21 | #include <pthread.h> | |
22 | #include <semaphore.h> | |
23 | #include <stdio.h> | |
24 | #include <stdlib.h> | |
25 | #include <string.h> | |
26 | #include <unistd.h> | |
903ae060 | 27 | #include <sys/time.h> |
7726edc2 UD |
28 | |
29 | ||
30 | static pthread_barrier_t bar; | |
31 | static sem_t sem; | |
32 | ||
33 | ||
34 | static void | |
35 | cleanup (void *arg) | |
36 | { | |
37 | static int ncall; | |
38 | ||
39 | if (++ncall != 1) | |
40 | { | |
41 | puts ("second call to cleanup"); | |
42 | exit (1); | |
43 | } | |
7726edc2 UD |
44 | } |
45 | ||
46 | ||
47 | static void * | |
48 | tf (void *arg) | |
49 | { | |
50 | int e; | |
51 | ||
52 | pthread_cleanup_push (cleanup, NULL); | |
53 | ||
54 | e = pthread_barrier_wait (&bar); | |
55 | if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) | |
56 | { | |
47677f2e | 57 | puts ("error: tf: 1st barrier_wait failed"); |
7726edc2 UD |
58 | exit (1); |
59 | } | |
60 | ||
61 | struct timeval tv; | |
62 | (void) gettimeofday (&tv, NULL); | |
63 | ||
64 | struct timespec ts; | |
65 | TIMEVAL_TO_TIMESPEC (&tv, &ts); | |
66 | ||
67 | /* Timeout in 5 seconds. */ | |
68 | ts.tv_sec += 5; | |
69 | ||
70 | /* This call should block and be cancelable. */ | |
71 | errno = 0; | |
72 | e = sem_timedwait (&sem, &ts); | |
73 | ||
74 | pthread_cleanup_pop (0); | |
75 | ||
7726edc2 UD |
76 | return NULL; |
77 | } | |
78 | ||
79 | ||
80 | static int | |
81 | do_test (void) | |
82 | { | |
83 | pthread_t th; | |
84 | ||
85 | if (pthread_barrier_init (&bar, NULL, 2) != 0) | |
86 | { | |
47677f2e | 87 | puts ("error: barrier_init failed"); |
7726edc2 UD |
88 | exit (1); |
89 | } | |
90 | ||
91 | if (sem_init (&sem, 0, 0) != 0) | |
92 | { | |
47677f2e | 93 | puts ("error: sem_init failed"); |
7726edc2 UD |
94 | exit (1); |
95 | } | |
96 | ||
97 | if (pthread_create (&th, NULL, tf, NULL) != 0) | |
98 | { | |
47677f2e | 99 | puts ("error: create failed"); |
7726edc2 UD |
100 | exit (1); |
101 | } | |
102 | ||
103 | int e = pthread_barrier_wait (&bar); | |
104 | if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) | |
105 | { | |
47677f2e | 106 | puts ("error: 1st barrier_wait failed"); |
7726edc2 UD |
107 | exit (1); |
108 | } | |
109 | ||
110 | /* Give the child a chance to go to sleep in sem_wait. */ | |
111 | sleep (1); | |
112 | ||
113 | /* Check whether cancellation is honored when waiting in sem_timedwait. */ | |
114 | if (pthread_cancel (th) != 0) | |
115 | { | |
47677f2e | 116 | puts ("error: 1st cancel failed"); |
7726edc2 UD |
117 | exit (1); |
118 | } | |
119 | ||
120 | void *r; | |
121 | if (pthread_join (th, &r) != 0) | |
122 | { | |
47677f2e | 123 | puts ("error: join failed"); |
7726edc2 UD |
124 | exit (1); |
125 | } | |
126 | ||
127 | if (r != PTHREAD_CANCELED) | |
128 | { | |
47677f2e | 129 | puts ("error: thread not canceled"); |
7726edc2 UD |
130 | exit (1); |
131 | } | |
132 | ||
133 | return 0; | |
134 | } | |
135 | ||
136 | ||
137 | #define TEST_FUNCTION do_test () | |
138 | #include "../test-skeleton.c" |