1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
|
/* Copyright (C) 2002-2024 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <errno.h>
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <sys/time.h>
static pthread_mutex_t mut;
static pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
static int
do_test (void)
{
pthread_mutexattr_t ma;
int err;
struct timespec ts;
struct timeval tv;
if (pthread_mutexattr_init (&ma) != 0)
{
puts ("mutexattr_init failed");
exit (1);
}
if (pthread_mutexattr_settype (&ma, PTHREAD_MUTEX_ERRORCHECK) != 0)
{
puts ("mutexattr_settype failed");
exit (1);
}
if (pthread_mutex_init (&mut, &ma) != 0)
{
puts ("mutex_init failed");
exit (1);
}
/* Get the mutex. */
if (pthread_mutex_lock (&mut) != 0)
{
puts ("mutex_lock failed");
exit (1);
}
/* Waiting for the condition will fail. But we want the timeout here. */
if (gettimeofday (&tv, NULL) != 0)
{
puts ("gettimeofday failed");
exit (1);
}
TIMEVAL_TO_TIMESPEC (&tv, &ts);
ts.tv_nsec += 500000000;
if (ts.tv_nsec >= 1000000000)
{
ts.tv_nsec -= 1000000000;
++ts.tv_sec;
}
err = pthread_cond_timedwait (&cond, &mut, &ts);
if (err == 0)
{
/* This could in theory happen but here without any signal and
additional waiter it should not. */
puts ("cond_timedwait succeeded");
exit (1);
}
else if (err != ETIMEDOUT)
{
printf ("cond_timedwait returned with %s\n", strerror (err));
exit (1);
}
err = pthread_mutex_unlock (&mut);
if (err != 0)
{
printf ("mutex_unlock failed: %s\n", strerror (err));
exit (1);
}
return 0;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
|
