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
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
|
/* Copyright (C) 2005-2017 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2005.
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 <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
static pthread_barrier_t b;
static pthread_cond_t c = PTHREAD_COND_INITIALIZER;
static pthread_mutex_t m;
static bool first = true;
static void *
tf (void *arg)
{
long int n = (long int) arg;
if (pthread_mutex_lock (&m) != 0)
{
printf ("thread %ld: mutex_lock failed\n", n + 1);
exit (1);
}
int e = pthread_barrier_wait (&b);
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
{
printf ("thread %ld: barrier_wait failed\n", n + 1);
exit (1);
}
e = pthread_cond_wait (&c, &m);
if (first)
{
if (e != 0)
{
printf ("thread %ld: cond_wait failed\n", n + 1);
exit (1);
}
first = false;
}
else
{
if (e != EOWNERDEAD)
{
printf ("thread %ld: cond_wait did not return EOWNERDEAD\n", n + 1);
exit (1);
}
}
if (pthread_cancel (pthread_self ()) != 0)
{
printf ("thread %ld: cancel failed\n", n + 1);
exit (1);
}
pthread_testcancel ();
printf ("thread %ld: testcancel returned\n", n + 1);
exit (1);
}
static int
do_test (void)
{
pthread_mutexattr_t a;
if (pthread_mutexattr_init (&a) != 0)
{
puts ("mutexattr_init failed");
return 1;
}
if (pthread_mutexattr_setrobust_np (&a, PTHREAD_MUTEX_ROBUST_NP) != 0)
{
puts ("mutexattr_setrobust failed");
return 1;
}
#ifdef ENABLE_PI
if (pthread_mutexattr_setprotocol (&a, PTHREAD_PRIO_INHERIT) != 0)
{
puts ("pthread_mutexattr_setprotocol failed");
return 1;
}
#endif
int e;
e = pthread_mutex_init (&m, &a);
if (e != 0)
{
#ifdef ENABLE_PI
if (e == ENOTSUP)
{
puts ("PI robust mutexes not supported");
return 0;
}
#endif
puts ("mutex_init failed");
return 1;
}
if (pthread_mutexattr_destroy (&a) != 0)
{
puts ("mutexattr_destroy failed");
return 1;
}
if (pthread_barrier_init (&b, NULL, 2) != 0)
{
puts ("barrier_init failed");
return 1;
}
#define N 5
pthread_t th[N];
for (long int n = 0; n < N; ++n)
{
if (pthread_create (&th[n], NULL, tf, (void *) n) != 0)
{
printf ("pthread_create loop %ld failed\n", n + 1);
return 1;
}
e = pthread_barrier_wait (&b);
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
{
printf ("parent: barrier_wait failed in round %ld\n", n + 1);
return 1;
}
}
if (pthread_mutex_lock (&m) != 0)
{
puts ("parent: mutex_lock failed");
return 1;
}
if (pthread_mutex_unlock (&m) != 0)
{
puts ("parent: mutex_unlock failed");
return 1;
}
if (pthread_cond_broadcast (&c) != 0)
{
puts ("cond_broadcast failed");
return 1;
}
for (int n = 0; n < N; ++n)
{
void *res;
if (pthread_join (th[n], &res) != 0)
{
printf ("join round %d failed\n", n + 1);
return 1;
}
if (res != PTHREAD_CANCELED)
{
printf ("thread %d not canceled\n", n + 1);
return 1;
}
}
e = pthread_mutex_lock (&m);
if (e == 0)
{
puts ("parent: 2nd mutex_lock succeeded");
return 1;
}
if (e != EOWNERDEAD)
{
puts ("parent: mutex_lock did not return EOWNERDEAD");
return 1;
}
if (pthread_mutex_unlock (&m) != 0)
{
puts ("parent: 2nd mutex_unlock failed");
return 1;
}
if (pthread_mutex_destroy (&m) != 0)
{
puts ("mutex_destroy failed");
return 1;
}
return 0;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
|
