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1/* Helper program for testing the pthread_rwlock_t and pthread_rwlockattr_t
2 pretty printers.
3
4 Copyright (C) 2016-2019 Free Software Foundation, Inc.
5 This file is part of the GNU C Library.
6
7 The GNU C Library is free software; you can redistribute it and/or
8 modify it under the terms of the GNU Lesser General Public
9 License as published by the Free Software Foundation; either
10 version 2.1 of the License, or (at your option) any later version.
11
12 The GNU C Library is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 Lesser General Public License for more details.
16
17 You should have received a copy of the GNU Lesser General Public
18 License along with the GNU C Library; if not, see
19 <http://www.gnu.org/licenses/>. */
20
21/* Keep the calls to the pthread_* functions on separate lines to make it easy
22 to advance through the program using the gdb 'next' command. */
23
24#include <pthread.h>
25
26#define PASS 0
27#define FAIL 1
28
29/* Need these so we don't have lines longer than 79 chars. */
30#define SET_KIND(attr, kind) pthread_rwlockattr_setkind_np (attr, kind)
31#define SET_SHARED(attr, shared) pthread_rwlockattr_setpshared (attr, shared)
32
33static int rwlock_reinit (pthread_rwlock_t *rwlock,
34 const pthread_rwlockattr_t *attr);
35static int test_setkind_np (pthread_rwlock_t *rwlock,
36 pthread_rwlockattr_t *attr);
37static int test_setpshared (pthread_rwlock_t *rwlock,
38 pthread_rwlockattr_t *attr);
39
40int
41main (void)
42{
43 pthread_rwlock_t rwlock;
44 pthread_rwlockattr_t attr;
45 int result = FAIL;
46
47 if (pthread_rwlockattr_init (&attr) == 0
48 && pthread_rwlock_init (&rwlock, NULL) == 0
49 && test_setkind_np (&rwlock, &attr) == PASS
50 && test_setpshared (&rwlock, &attr) == PASS)
51 result = PASS;
52 /* Else, one of the pthread_rwlock* functions failed. */
53
54 return result;
55}
56
57/* Destroys RWLOCK and re-initializes it using ATTR. */
58static int
59rwlock_reinit (pthread_rwlock_t *rwlock, const pthread_rwlockattr_t *attr)
60{
61 int result = FAIL;
62
63 if (pthread_rwlock_destroy (rwlock) == 0
64 && pthread_rwlock_init (rwlock, attr) == 0)
65 result = PASS;
66
67 return result;
68}
69
70/* Tests setting whether the rwlock prefers readers or writers. */
71static int
72test_setkind_np (pthread_rwlock_t *rwlock, pthread_rwlockattr_t *attr)
73{
74 int result = FAIL;
75
76 if (SET_KIND (attr, PTHREAD_RWLOCK_PREFER_READER_NP) == 0 /* Set kind. */
77 && rwlock_reinit (rwlock, attr) == PASS
78 && SET_KIND (attr, PTHREAD_RWLOCK_PREFER_WRITER_NP) == 0
79 && rwlock_reinit (rwlock, attr) == PASS
80 && SET_KIND (attr, PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP) == 0
81 && rwlock_reinit (rwlock, attr) == PASS)
82 result = PASS;
83
84 return result;
85}
86
87/* Tests setting whether the rwlock can be shared between processes. */
88static int
89test_setpshared (pthread_rwlock_t *rwlock, pthread_rwlockattr_t *attr)
90{
91 int result = FAIL;
92
93 if (SET_SHARED (attr, PTHREAD_PROCESS_SHARED) == 0 /* Set shared. */
94 && rwlock_reinit (rwlock, attr) == PASS
95 && SET_SHARED (attr, PTHREAD_PROCESS_PRIVATE) == 0
96 && rwlock_reinit (rwlock, attr) == PASS)
97 result = PASS;
98
99 return result;
100}
101

Warning: That file was not part of the compilation database. It may have many parsing errors.