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47677f2e | 1 | /* Test sem_timedwait cancellation for uncontended case. |
04277e02 | 2 | Copyright (C) 2003-2019 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 PE |
17 | License along with the GNU C Library; if not, see |
18 | <http://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 | pthread_cleanup_push (cleanup, NULL); | |
51 | ||
52 | int e = pthread_barrier_wait (&bar); | |
53 | if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) | |
54 | { | |
47677f2e | 55 | puts ("error: tf: 1st barrier_wait failed"); |
7726edc2 UD |
56 | exit (1); |
57 | } | |
58 | ||
59 | struct timeval tv; | |
60 | (void) gettimeofday (&tv, NULL); | |
61 | ||
62 | struct timespec ts; | |
63 | TIMEVAL_TO_TIMESPEC (&tv, &ts); | |
64 | ||
65 | /* Timeout in 5 seconds. */ | |
66 | ts.tv_sec += 5; | |
67 | ||
68 | /* This call should block and be cancelable. */ | |
69 | sem_timedwait (&sem, &ts); | |
70 | ||
71 | pthread_cleanup_pop (0); | |
72 | ||
7726edc2 UD |
73 | return NULL; |
74 | } | |
75 | ||
76 | ||
77 | static int | |
78 | do_test (void) | |
79 | { | |
80 | pthread_t th; | |
81 | ||
82 | if (pthread_barrier_init (&bar, NULL, 2) != 0) | |
83 | { | |
47677f2e | 84 | puts ("error: barrier_init failed"); |
7726edc2 UD |
85 | exit (1); |
86 | } | |
87 | ||
88 | if (sem_init (&sem, 0, 1) != 0) | |
89 | { | |
47677f2e | 90 | puts ("error: sem_init failed"); |
7726edc2 UD |
91 | exit (1); |
92 | } | |
93 | ||
94 | if (pthread_create (&th, NULL, tf, NULL) != 0) | |
95 | { | |
47677f2e | 96 | puts ("error: create failed"); |
7726edc2 UD |
97 | exit (1); |
98 | } | |
99 | ||
100 | /* Check whether cancellation is honored even before sem_timedwait does | |
101 | anything. */ | |
102 | if (pthread_cancel (th) != 0) | |
103 | { | |
47677f2e | 104 | puts ("error: 1st cancel failed"); |
7726edc2 UD |
105 | exit (1); |
106 | } | |
107 | ||
108 | int e = pthread_barrier_wait (&bar); | |
109 | if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) | |
110 | { | |
111 | puts ("1st barrier_wait failed"); | |
112 | exit (1); | |
113 | } | |
114 | ||
115 | void *r; | |
116 | if (pthread_join (th, &r) != 0) | |
117 | { | |
118 | puts ("join failed"); | |
119 | exit (1); | |
120 | } | |
121 | ||
122 | if (r != PTHREAD_CANCELED) | |
123 | { | |
124 | puts ("thread not canceled"); | |
125 | exit (1); | |
126 | } | |
127 | ||
128 | return 0; | |
129 | } | |
130 | ||
131 | ||
132 | #define TEST_FUNCTION do_test () | |
133 | #include "../test-skeleton.c" |