]>
Commit | Line | Data |
---|---|---|
23b5cae1 MG |
1 | /* Helper program for testing the pthread_rwlock_t pretty printer. |
2 | ||
6d7e8eda | 3 | Copyright (C) 2016-2023 Free Software Foundation, Inc. |
23b5cae1 MG |
4 | This file is part of the GNU C Library. |
5 | ||
6 | The GNU C Library is free software; you can redistribute it and/or | |
7 | modify it under the terms of the GNU Lesser General Public | |
8 | License as published by the Free Software Foundation; either | |
9 | version 2.1 of the License, or (at your option) any later version. | |
10 | ||
11 | The GNU C Library is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | Lesser General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU Lesser General Public | |
17 | License along with the GNU C Library; if not, see | |
5a82c748 | 18 | <https://www.gnu.org/licenses/>. */ |
23b5cae1 MG |
19 | |
20 | /* Keep the calls to the pthread_* functions on separate lines to make it easy | |
21 | to advance through the program using the gdb 'next' command. */ | |
22 | ||
23 | #include <pthread.h> | |
24 | ||
25 | #define PASS 0 | |
26 | #define FAIL 1 | |
27 | ||
28 | static int test_locking_reader (pthread_rwlock_t *rwlock); | |
29 | static int test_locking_writer (pthread_rwlock_t *rwlock); | |
30 | ||
31 | int | |
32 | main (void) | |
33 | { | |
34 | pthread_rwlock_t rwlock; | |
35 | ||
36 | int result = FAIL; | |
37 | ||
38 | if (test_locking_reader (&rwlock) == PASS | |
39 | && test_locking_writer (&rwlock) == PASS) | |
40 | result = PASS; | |
41 | /* Else, one of the pthread_rwlock* functions failed. */ | |
42 | ||
43 | return result; | |
44 | } | |
45 | ||
46 | /* Tests locking the rwlock multiple times as a reader. */ | |
47 | static int | |
48 | test_locking_reader (pthread_rwlock_t *rwlock) | |
49 | { | |
50 | int result = FAIL; | |
51 | ||
52 | if (pthread_rwlock_init (rwlock, NULL) == 0 | |
53 | && pthread_rwlock_rdlock (rwlock) == 0 /* Test locking (reader). */ | |
54 | && pthread_rwlock_rdlock (rwlock) == 0 | |
55 | && pthread_rwlock_rdlock (rwlock) == 0 | |
56 | && pthread_rwlock_unlock (rwlock) == 0 | |
57 | && pthread_rwlock_unlock (rwlock) == 0 | |
58 | && pthread_rwlock_unlock (rwlock) == 0 | |
59 | && pthread_rwlock_destroy (rwlock) == 0) | |
60 | result = PASS; | |
61 | ||
62 | return result; | |
63 | } | |
64 | ||
65 | /* Tests locking the rwlock as a writer. */ | |
66 | static int | |
67 | test_locking_writer (pthread_rwlock_t *rwlock) | |
68 | { | |
69 | int result = FAIL; | |
70 | ||
71 | if (pthread_rwlock_init (rwlock, NULL) == 0 | |
72 | && pthread_rwlock_wrlock (rwlock) == 0 /* Test locking (writer). */ | |
73 | && pthread_rwlock_unlock (rwlock) == 0 | |
74 | && pthread_rwlock_destroy (rwlock) == 0) | |
75 | result = PASS; | |
76 | ||
77 | return result; | |
78 | } |