1 | /* Copyright (C) 2003-2024 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. |
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 |
15 | License along with the GNU C Library; if not, see |
16 | <https://www.gnu.org/licenses/>. */ |
17 | |
18 | #include <errno.h> |
19 | #include <pthread.h> |
20 | #include <signal.h> |
21 | #include <stdio.h> |
22 | #include <stdlib.h> |
23 | #include <string.h> |
24 | #include <sys/time.h> |
25 | #include <support/check.h> |
26 | #include <support/timespec.h> |
27 | #include <support/xtime.h> |
28 | |
29 | #include "eintr.c" |
30 | |
31 | |
32 | static pthread_mutex_t m1 = PTHREAD_MUTEX_INITIALIZER; |
33 | static pthread_mutex_t m2 = PTHREAD_MUTEX_INITIALIZER; |
34 | |
35 | |
36 | static void * |
37 | tf1 (void *arg) |
38 | { |
39 | struct timespec ts = timespec_add (xclock_now (CLOCK_REALTIME), |
40 | make_timespec (s: 10000, ns: 0)); |
41 | |
42 | /* This call must never return. */ |
43 | int e = pthread_mutex_timedlock (mutex: &m1, abstime: &ts); |
44 | char buf[100]; |
45 | printf (format: "tf1: mutex_timedlock returned: %s\n" , |
46 | strerror_r (errnum: e, buf: buf, buflen: sizeof (buf))); |
47 | |
48 | exit (1); |
49 | } |
50 | |
51 | |
52 | static void * |
53 | tf2 (void *arg) |
54 | { |
55 | while (1) |
56 | { |
57 | TEST_COMPARE (pthread_mutex_lock (&m2), 0); |
58 | TEST_COMPARE (pthread_mutex_unlock (&m2), 0); |
59 | |
60 | struct timespec ts = { .tv_sec = 0, .tv_nsec = 10000000 }; |
61 | nanosleep (requested_time: &ts, NULL); |
62 | } |
63 | return NULL; |
64 | } |
65 | |
66 | |
67 | static int |
68 | do_test (void) |
69 | { |
70 | TEST_COMPARE (pthread_mutex_lock (&m1), 0); |
71 | |
72 | setup_eintr (SIGUSR1, NULL); |
73 | |
74 | char buf[100]; |
75 | xpthread_create (NULL, thread_func: tf1, NULL); |
76 | xpthread_create (NULL, thread_func: tf2, NULL); |
77 | |
78 | delayed_exit (seconds: 3); |
79 | /* This call must never return. */ |
80 | int e = pthread_mutex_lock (mutex: &m1); |
81 | printf (format: "main: mutex_lock returned: %s\n" , |
82 | strerror_r (errnum: e, buf: buf, buflen: sizeof (buf))); |
83 | |
84 | return 1; |
85 | } |
86 | |
87 | #include <support/test-driver.c> |
88 | |