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
32static pthread_mutex_t m1 = PTHREAD_MUTEX_INITIALIZER;
33static pthread_mutex_t m2 = PTHREAD_MUTEX_INITIALIZER;
34
35
36static void *
37tf1 (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
52static void *
53tf2 (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
67static int
68do_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

source code of glibc/sysdeps/pthread/tst-eintr2.c