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
|
/* Copyright (C) 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2004.
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 <stdio.h>
#include <stdlib.h>
#include <time.h>
static pthread_barrier_t b;
static pthread_rwlock_t r = PTHREAD_RWLOCK_INITIALIZER;
static void *
tf (void *arg)
{
/* Lock the read-write lock. */
if (pthread_rwlock_wrlock (&r) != 0)
{
puts ("tf: cannot lock rwlock");
exit (EXIT_FAILURE);
}
pthread_t mt = *(pthread_t *) arg;
pthread_barrier_wait (&b);
/* This call will never return. */
pthread_join (mt, NULL);
return NULL;
}
static int
do_test (void)
{
int result = 0;
struct timespec ts;
if (clock_gettime (CLOCK_REALTIME, &ts) != 0)
{
puts ("clock_gettime failed");
return 1;
}
if (pthread_barrier_init (&b, NULL, 2) != 0)
{
puts ("barrier_init failed");
return 1;
}
pthread_t me = pthread_self ();
pthread_t th;
if (pthread_create (&th, NULL, tf, &me) != 0)
{
puts ("create failed");
return 1;
}
/* Wait until the rwlock is locked. */
pthread_barrier_wait (&b);
ts.tv_nsec = -1;
int e = pthread_rwlock_timedrdlock (&r, &ts);
if (e == 0)
{
puts ("first rwlock_timedrdlock did not fail");
result = 1;
}
else if (e != EINVAL)
{
puts ("first rwlock_timedrdlock did not return EINVAL");
result = 1;
}
e = pthread_rwlock_timedwrlock (&r, &ts);
if (e == 0)
{
puts ("first rwlock_timedwrlock did not fail");
result = 1;
}
else if (e != EINVAL)
{
puts ("first rwlock_timedwrlock did not return EINVAL");
result = 1;
}
ts.tv_nsec = 1000000000;
e = pthread_rwlock_timedrdlock (&r, &ts);
if (e == 0)
{
puts ("second rwlock_timedrdlock did not fail");
result = 1;
}
else if (e != EINVAL)
{
puts ("second rwlock_timedrdlock did not return EINVAL");
result = 1;
}
e = pthread_rwlock_timedrdlock (&r, &ts);
if (e == 0)
{
puts ("second rwlock_timedrdlock did not fail");
result = 1;
}
else if (e != EINVAL)
{
puts ("second rwlock_timedrdlock did not return EINVAL");
result = 1;
}
ts.tv_nsec = 0x100001000LL;
if (ts.tv_nsec != 0x100001000LL)
ts.tv_nsec = 2000000000;
e = pthread_rwlock_timedrdlock (&r, &ts);
if (e == 0)
{
puts ("third rwlock_timedrdlock did not fail");
result = 1;
}
else if (e != EINVAL)
{
puts ("third rwlock_timedrdlock did not return EINVAL");
result = 1;
}
e = pthread_rwlock_timedrdlock (&r, &ts);
if (e == 0)
{
puts ("third rwlock_timedrdlock did not fail");
result = 1;
}
else if (e != EINVAL)
{
puts ("third rwlock_timedrdlock did not return EINVAL");
result = 1;
}
if (result == 0)
puts ("no bugs");
return result;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
|
