1 | /* Test that pthread_mutex_timedlock properly times out. |
2 | Copyright (C) 2016-2024 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
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 |
16 | License along with the GNU C Library; if not, see |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <pthread.h> |
20 | #include <stdio.h> |
21 | #include <stdlib.h> |
22 | #include <string.h> |
23 | #include <errno.h> |
24 | |
25 | pthread_mutex_t mutex; |
26 | |
27 | static void * |
28 | thr (void *arg) |
29 | { |
30 | struct timespec abstime; |
31 | clock_gettime (CLOCK_REALTIME, tp: &abstime); |
32 | abstime.tv_sec += 1; |
33 | int ret = pthread_mutex_timedlock (mutex: &mutex, abstime: &abstime); |
34 | if (ret == 0) |
35 | { |
36 | puts (s: "mutex_timedlock didn't fail" ); |
37 | exit (1); |
38 | } |
39 | if (ret != ETIMEDOUT) |
40 | { |
41 | printf (format: "mutex_timedlock failed: %s\n" , strerror (errnum: ret)); |
42 | exit (1); |
43 | } |
44 | |
45 | return 0; |
46 | } |
47 | |
48 | static int |
49 | do_test (void) |
50 | { |
51 | pthread_t pt; |
52 | pthread_mutexattr_t ma; |
53 | |
54 | if (pthread_mutexattr_init (attr: &ma) != 0) |
55 | { |
56 | puts (s: "mutexattr_init failed" ); |
57 | return 0; |
58 | } |
59 | if (pthread_mutexattr_setrobust (attr: &ma, robustness: PTHREAD_MUTEX_ROBUST_NP) != 0) |
60 | { |
61 | puts (s: "mutexattr_setrobust failed" ); |
62 | return 1; |
63 | } |
64 | if (pthread_mutex_init (mutex: &mutex, mutexattr: &ma)) |
65 | { |
66 | puts (s: "mutex_init failed" ); |
67 | return 1; |
68 | } |
69 | |
70 | if (pthread_mutexattr_destroy (attr: &ma)) |
71 | { |
72 | puts (s: "mutexattr_destroy failed" ); |
73 | return 1; |
74 | } |
75 | |
76 | if (pthread_mutex_lock (mutex: &mutex)) |
77 | { |
78 | puts (s: "mutex_lock failed" ); |
79 | return 1; |
80 | } |
81 | |
82 | if (pthread_create (newthread: &pt, NULL, start_routine: thr, NULL)) |
83 | { |
84 | puts (s: "pthread_create failed" ); |
85 | return 1; |
86 | } |
87 | |
88 | if (pthread_join (th: pt, NULL)) |
89 | { |
90 | puts (s: "pthread_join failed" ); |
91 | return 1; |
92 | } |
93 | |
94 | if (pthread_mutex_unlock (mutex: &mutex)) |
95 | { |
96 | puts (s: "mutex_unlock failed" ); |
97 | return 1; |
98 | } |
99 | |
100 | if (pthread_mutex_destroy (mutex: &mutex)) |
101 | { |
102 | puts (s: "mutex_destroy failed" ); |
103 | return 1; |
104 | } |
105 | |
106 | return 0; |
107 | } |
108 | |
109 | #define TEST_FUNCTION do_test () |
110 | #include "../test-skeleton.c" |
111 | |