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
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
|
/* Copyright (C) 2002, 2003, 2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <errno.h>
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
static pthread_mutex_t m;
static pthread_barrier_t b;
static void *
tf (void *arg)
{
int e = pthread_mutex_unlock (&m);
if (e == 0)
{
puts ("child: 1st mutex_unlock succeeded");
exit (1);
}
else if (e != EPERM)
{
puts ("child: 1st mutex_unlock error != EPERM");
exit (1);
}
e = pthread_mutex_trylock (&m);
if (e == 0)
{
puts ("child: 1st trylock suceeded");
exit (1);
}
if (e != EBUSY)
{
puts ("child: 1st trylock didn't return EBUSY");
exit (1);
}
e = pthread_barrier_wait (&b);
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
{
puts ("child: 1st barrier_wait failed");
exit (1);
}
e = pthread_barrier_wait (&b);
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
{
puts ("child: 2nd barrier_wait failed");
exit (1);
}
e = pthread_mutex_unlock (&m);
if (e == 0)
{
puts ("child: 2nd mutex_unlock succeeded");
exit (1);
}
else if (e != EPERM)
{
puts ("child: 2nd mutex_unlock error != EPERM");
exit (1);
}
if (pthread_mutex_trylock (&m) != 0)
{
puts ("child: 2nd trylock failed");
exit (1);
}
if (pthread_mutex_unlock (&m) != 0)
{
puts ("child: 3rd mutex_unlock failed");
exit (1);
}
return NULL;
}
static int
do_test (void)
{
pthread_mutexattr_t a;
int e;
if (pthread_mutexattr_init (&a) != 0)
{
puts ("mutexattr_init failed");
return 1;
}
if (pthread_mutexattr_settype (&a, PTHREAD_MUTEX_ERRORCHECK) != 0)
{
puts ("mutexattr_settype failed");
return 1;
}
#ifdef ENABLE_PI
if (pthread_mutexattr_setprotocol (&a, PTHREAD_PRIO_INHERIT) != 0)
{
puts ("pthread_mutexattr_setprotocol failed");
return 1;
}
#endif
e = pthread_mutex_init (&m, &a);
if (e != 0)
{
#ifdef ENABLE_PI
if (e == ENOTSUP)
{
puts ("PI mutexes unsupported");
return 0;
}
#endif
puts ("mutex_init failed");
return 1;
}
if (pthread_barrier_init (&b, NULL, 2) != 0)
{
puts ("barrier_init failed");
return 1;
}
e = pthread_mutex_unlock (&m);
if (e == 0)
{
puts ("1st mutex_unlock succeeded");
return 1;
}
else if (e != EPERM)
{
puts ("1st mutex_unlock error != EPERM");
return 1;
}
if (pthread_mutex_lock (&m) != 0)
{
puts ("mutex_lock failed");
return 1;
}
e = pthread_mutex_lock (&m);
if (e == 0)
{
puts ("2nd mutex_lock succeeded");
return 1;
}
else if (e != EDEADLK)
{
puts ("2nd mutex_lock error != EDEADLK");
return 1;
}
pthread_t th;
if (pthread_create (&th, NULL, tf, NULL) != 0)
{
puts ("create failed");
return 1;
}
e = pthread_barrier_wait (&b);
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
{
puts ("1st barrier_wait failed");
return 1;
}
if (pthread_mutex_unlock (&m) != 0)
{
puts ("2nd mutex_unlock failed");
return 1;
}
e = pthread_mutex_unlock (&m);
if (e == 0)
{
puts ("3rd mutex_unlock succeeded");
return 1;
}
else if (e != EPERM)
{
puts ("3rd mutex_unlock error != EPERM");
return 1;
}
e = pthread_barrier_wait (&b);
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
{
puts ("2nd barrier_wait failed");
return 1;
}
if (pthread_join (th, NULL) != 0)
{
puts ("join failed");
return 1;
}
if (pthread_mutex_destroy (&m) != 0)
{
puts ("mutex_destroy failed");
return 1;
}
if (pthread_barrier_destroy (&b) != 0)
{
puts ("barrier_destroy failed");
return 1;
}
if (pthread_mutexattr_destroy (&a) != 0)
{
puts ("mutexattr_destroy failed");
return 1;
}
return 0;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
|
