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
|
/* Helper program for testing the pthread_mutex_t and pthread_mutexattr_t
pretty printers.
Copyright (C) 2016-2020 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/>. */
/* Keep the calls to the pthread_* functions on separate lines to make it easy
to advance through the program using the gdb 'next' command. */
#include <pthread.h>
#define PASS 0
#define FAIL 1
#define PRIOCEILING 42
/* Need these so we don't have lines longer than 79 chars. */
#define SET_TYPE(attr, type) pthread_mutexattr_settype (attr, type)
#define SET_ROBUST(attr, robust) pthread_mutexattr_setrobust (attr, robust)
#define SET_SHARED(attr, shared) pthread_mutexattr_setpshared (attr, shared)
#define SET_PROTOCOL(attr, protocol) \
pthread_mutexattr_setprotocol (attr, protocol)
#define SET_PRIOCEILING(mutex, prioceiling, old_ceiling) \
pthread_mutex_setprioceiling (mutex, prioceiling, old_ceiling)
static int mutex_reinit (pthread_mutex_t *mutex,
const pthread_mutexattr_t *attr);
static int test_settype (pthread_mutex_t *mutex, pthread_mutexattr_t *attr);
static int test_setrobust (pthread_mutex_t *mutex, pthread_mutexattr_t *attr);
static int test_setpshared (pthread_mutex_t *mutex, pthread_mutexattr_t *attr);
static int test_setprotocol (pthread_mutex_t *mutex,
pthread_mutexattr_t *attr);
int
main (void)
{
pthread_mutex_t mutex;
pthread_mutexattr_t attr;
int result = FAIL;
if (pthread_mutexattr_init (&attr) == 0
&& pthread_mutex_init (&mutex, NULL) == 0
&& test_settype (&mutex, &attr) == PASS
&& test_setrobust (&mutex, &attr) == PASS
&& test_setpshared (&mutex, &attr) == PASS
&& test_setprotocol (&mutex, &attr) == PASS)
result = PASS;
/* Else, one of the pthread_mutex* functions failed. */
return result;
}
/* Destroys MUTEX and re-initializes it using ATTR. */
static int
mutex_reinit (pthread_mutex_t *mutex, const pthread_mutexattr_t *attr)
{
int result = FAIL;
if (pthread_mutex_destroy (mutex) == 0
&& pthread_mutex_init (mutex, attr) == 0)
result = PASS;
return result;
}
/* Tests setting the mutex type. */
static int
test_settype (pthread_mutex_t *mutex, pthread_mutexattr_t *attr)
{
int result = FAIL;
if (SET_TYPE (attr, PTHREAD_MUTEX_ERRORCHECK) == 0 /* Set type. */
&& mutex_reinit (mutex, attr) == 0
&& SET_TYPE (attr, PTHREAD_MUTEX_RECURSIVE) == 0
&& mutex_reinit (mutex, attr) == 0
&& SET_TYPE (attr, PTHREAD_MUTEX_NORMAL) == 0
&& mutex_reinit (mutex, attr) == 0)
result = PASS;
return result;
}
/* Tests setting whether the mutex is robust. */
static int
test_setrobust (pthread_mutex_t *mutex, pthread_mutexattr_t *attr)
{
int result = FAIL;
if (SET_ROBUST (attr, PTHREAD_MUTEX_ROBUST) == 0 /* Set robust. */
&& mutex_reinit (mutex, attr) == 0
&& SET_ROBUST (attr, PTHREAD_MUTEX_STALLED) == 0
&& mutex_reinit (mutex, attr) == 0)
result = PASS;
return result;
}
/* Tests setting whether the mutex can be shared between processes. */
static int
test_setpshared (pthread_mutex_t *mutex, pthread_mutexattr_t *attr)
{
int result = FAIL;
if (SET_SHARED (attr, PTHREAD_PROCESS_SHARED) == 0 /* Set shared. */
&& mutex_reinit (mutex, attr) == 0
&& SET_SHARED (attr, PTHREAD_PROCESS_PRIVATE) == 0
&& mutex_reinit (mutex, attr) == 0)
result = PASS;
return result;
}
/* Tests setting the mutex protocol and, for Priority Protect, the Priority
Ceiling. */
static int
test_setprotocol (pthread_mutex_t *mutex, pthread_mutexattr_t *attr)
{
int result = FAIL;
int old_prioceiling;
if (SET_PROTOCOL (attr, PTHREAD_PRIO_INHERIT) == 0 /* Set protocol. */
&& mutex_reinit (mutex, attr) == 0
&& SET_PROTOCOL (attr, PTHREAD_PRIO_PROTECT) == 0
&& mutex_reinit (mutex, attr) == 0
&& SET_PRIOCEILING(mutex, PRIOCEILING, &old_prioceiling) == 0
&& SET_PROTOCOL (attr, PTHREAD_PRIO_NONE) == 0
&& mutex_reinit (mutex, attr) == 0)
result = PASS;
return result;
}
|
