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2b778ceb | 1 | /* Copyright (C) 2002-2021 Free Software Foundation, Inc. |
76a50749 | 2 | This file is part of the GNU C Library. |
76a50749 UD |
3 | |
4 | The GNU C Library is free software; you can redistribute it and/or | |
5 | modify it under the terms of the GNU Lesser General Public | |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
8 | ||
9 | The GNU C Library is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | Lesser General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU Lesser General Public | |
59ba27a6 | 15 | License along with the GNU C Library; if not, see |
5a82c748 | 16 | <https://www.gnu.org/licenses/>. */ |
76a50749 UD |
17 | |
18 | #include <errno.h> | |
19 | #include <pthread.h> | |
20 | #include <stdio.h> | |
21 | #include <stdlib.h> | |
22 | #include <string.h> | |
23 | #include <time.h> | |
24 | #include <sys/time.h> | |
25 | ||
26 | ||
27 | static pthread_mutex_t mut; | |
28 | static pthread_cond_t cond = PTHREAD_COND_INITIALIZER; | |
29 | ||
30 | ||
31 | static int | |
32 | do_test (void) | |
33 | { | |
34 | pthread_mutexattr_t ma; | |
35 | int err; | |
36 | struct timespec ts; | |
37 | struct timeval tv; | |
38 | ||
39 | if (pthread_mutexattr_init (&ma) != 0) | |
40 | { | |
41 | puts ("mutexattr_init failed"); | |
42 | exit (1); | |
43 | } | |
44 | ||
45 | if (pthread_mutexattr_settype (&ma, PTHREAD_MUTEX_ERRORCHECK) != 0) | |
46 | { | |
47 | puts ("mutexattr_settype failed"); | |
48 | exit (1); | |
49 | } | |
50 | ||
51 | if (pthread_mutex_init (&mut, &ma) != 0) | |
52 | { | |
53 | puts ("mutex_init failed"); | |
54 | exit (1); | |
55 | } | |
56 | ||
57 | /* Get the mutex. */ | |
58 | if (pthread_mutex_lock (&mut) != 0) | |
59 | { | |
60 | puts ("mutex_lock failed"); | |
61 | exit (1); | |
62 | } | |
63 | ||
64 | /* Waiting for the condition will fail. But we want the timeout here. */ | |
65 | if (gettimeofday (&tv, NULL) != 0) | |
66 | { | |
67 | puts ("gettimeofday failed"); | |
68 | exit (1); | |
69 | } | |
70 | ||
71 | TIMEVAL_TO_TIMESPEC (&tv, &ts); | |
72 | ts.tv_nsec += 500000000; | |
73 | if (ts.tv_nsec >= 1000000000) | |
74 | { | |
75 | ts.tv_nsec -= 1000000000; | |
76 | ++ts.tv_sec; | |
77 | } | |
78 | err = pthread_cond_timedwait (&cond, &mut, &ts); | |
79 | if (err == 0) | |
80 | { | |
81 | /* This could in theory happen but here without any signal and | |
82 | additional waiter it should not. */ | |
83 | puts ("cond_timedwait succeeded"); | |
84 | exit (1); | |
85 | } | |
86 | else if (err != ETIMEDOUT) | |
87 | { | |
88 | printf ("cond_timedwait returned with %s\n", strerror (err)); | |
89 | exit (1); | |
90 | } | |
91 | ||
92 | err = pthread_mutex_unlock (&mut); | |
93 | if (err != 0) | |
94 | { | |
95 | printf ("mutex_unlock failed: %s\n", strerror (err)); | |
96 | exit (1); | |
97 | } | |
98 | ||
99 | return 0; | |
100 | } | |
101 | ||
102 | ||
103 | #define TEST_FUNCTION do_test () | |
104 | #include "../test-skeleton.c" |