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
105
106
107
108
109
110
111
112
113
114
115
116
117
|
/* Copyright (C) 2003-2014 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
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
<http://www.gnu.org/licenses/>. */
#include <errno.h>
#include <pthread.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/time.h>
#include "eintr.c"
static pthread_mutex_t m1 = PTHREAD_MUTEX_INITIALIZER;
static pthread_mutex_t m2 = PTHREAD_MUTEX_INITIALIZER;
static void *
tf1 (void *arg)
{
struct timespec ts;
struct timeval tv;
gettimeofday (&tv, NULL);
TIMEVAL_TO_TIMESPEC (&tv, &ts);
ts.tv_sec += 10000;
/* This call must never return. */
int e = pthread_mutex_timedlock (&m1, &ts);
char buf[100];
printf ("tf1: mutex_timedlock returned: %s\n",
strerror_r (e, buf, sizeof (buf)));
exit (1);
}
static void *
tf2 (void *arg)
{
while (1)
{
int e = pthread_mutex_lock (&m2);
if (e != 0)
{
puts ("tf2: mutex_lock failed");
exit (1);
}
e = pthread_mutex_unlock (&m2);
if (e != 0)
{
puts ("tf2: mutex_unlock failed");
exit (1);
}
struct timespec ts = { .tv_sec = 0, .tv_nsec = 10000000 };
nanosleep (&ts, NULL);
}
}
static int
do_test (void)
{
if (pthread_mutex_lock (&m1) != 0)
{
puts ("mutex_lock failed");
exit (1);
}
setup_eintr (SIGUSR1, NULL);
pthread_t th;
char buf[100];
int e = pthread_create (&th, NULL, tf1, NULL);
if (e != 0)
{
printf ("main: 1st pthread_create failed: %s\n",
strerror_r (e, buf, sizeof (buf)));
exit (1);
}
e = pthread_create (&th, NULL, tf2, NULL);
if (e != 0)
{
printf ("main: 2nd pthread_create failed: %s\n",
strerror_r (e, buf, sizeof (buf)));
exit (1);
}
/* This call must never return. */
e = pthread_mutex_lock (&m1);
printf ("main: mutex_lock returned: %s\n",
strerror_r (e, buf, sizeof (buf)));
return 1;
}
#define EXPECTED_SIGNAL SIGALRM
#define TIMEOUT 3
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
|
