aboutsummaryrefslogtreecommitdiff
path: root/nptl/tst-rwlock2.c
blob: ca45e9061993ca884e2117454683b0c2e465f768 (plain)
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
/* Copyright (C) 2002-2024 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/>.  */

#include <errno.h>
#include <pthread.h>
#include <stdio.h>


static int
do_test (void)
{
  pthread_rwlock_t r;
  pthread_rwlockattr_t at;
  int e;

  if (pthread_rwlockattr_init (&at) != 0)
    {
      puts ("rwlockattr_init failed");
      return 1;
    }
  puts ("rwlockattr_init succeeded");

#ifndef TYPE
# define TYPE PTHREAD_RWLOCK_PREFER_READER_NP
#endif

  if (pthread_rwlockattr_setkind_np (&at, TYPE) != 0)
    {
      puts ("rwlockattr_setkind failed");
      return 1;
    }
  puts ("rwlockattr_setkind succeeded");

  if (pthread_rwlock_init (&r, &at) != 0)
    {
      puts ("rwlock_init failed");
      return 1;
    }
  puts ("rwlock_init succeeded");

  if (pthread_rwlockattr_destroy (&at) != 0)
    {
      puts ("rwlockattr_destroy failed");
      return 1;
    }
  puts ("rwlockattr_destroy succeeded");

  if (pthread_rwlock_wrlock (&r) != 0)
    {
      puts ("1st rwlock_wrlock failed");
      return 1;
    }
  puts ("1st rwlock_wrlock succeeded");

  e = pthread_rwlock_tryrdlock (&r);
  if (e == 0)
    {
      puts ("rwlock_tryrdlock on rwlock with writer succeeded");
      return 1;
    }
  if (e != EBUSY)
    {
      puts ("rwlock_tryrdlock on rwlock with writer return value != EBUSY");
      return 1;
    }
  puts ("rwlock_tryrdlock on rwlock with writer failed with EBUSY");

  e = pthread_rwlock_trywrlock (&r);
  if (e == 0)
    {
      puts ("rwlock_trywrlock on rwlock with writer succeeded");
      return 1;
    }
  if (e != EBUSY)
    {
      puts ("rwlock_trywrlock on rwlock with writer return value != EBUSY");
      return 1;
    }
  puts ("rwlock_trywrlock on rwlock with writer failed with EBUSY");

  if (pthread_rwlock_unlock (&r) != 0)
    {
      puts ("1st rwlock_unlock failed");
      return 1;
    }
  puts ("1st rwlock_unlock succeeded");

  if (pthread_rwlock_tryrdlock (&r) != 0)
    {
      puts ("rwlock_tryrdlock on unlocked rwlock failed");
      return 1;
    }
  puts ("rwlock_tryrdlock on unlocked rwlock succeeded");

  e = pthread_rwlock_trywrlock (&r);
  if (e == 0)
    {
      puts ("rwlock_trywrlock on rwlock with reader succeeded");
      return 1;
    }
  if (e != EBUSY)
    {
      puts ("rwlock_trywrlock on rwlock with reader return value != EBUSY");
      return 1;
    }
  puts ("rwlock_trywrlock on rwlock with reader failed with EBUSY");

  if (pthread_rwlock_unlock (&r) != 0)
    {
      puts ("2nd rwlock_unlock failed");
      return 1;
    }
  puts ("2nd rwlock_unlock succeeded");

  if (pthread_rwlock_trywrlock (&r) != 0)
    {
      puts ("rwlock_trywrlock on unlocked rwlock failed");
      return 1;
    }
  puts ("rwlock_trywrlock on unlocked rwlock succeeded");

  e = pthread_rwlock_tryrdlock (&r);
  if (e == 0)
    {
      puts ("rwlock_tryrdlock on rwlock with writer succeeded");
      return 1;
    }
  if (e != EBUSY)
    {
      puts ("rwlock_tryrdlock on rwlock with writer return value != EBUSY");
      return 1;
    }
  puts ("rwlock_tryrdlock on rwlock with writer failed with EBUSY");

  if (pthread_rwlock_unlock (&r) != 0)
    {
      puts ("3rd rwlock_unlock failed");
      return 1;
    }
  puts ("3rd rwlock_unlock succeeded");

  if (pthread_rwlock_destroy (&r) != 0)
    {
      puts ("rwlock_destroy failed");
      return 1;
    }
  puts ("rwlock_destroy succeeded");

  return 0;
}

#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"