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23b5cae1 MG |
1 | /* Helper program for testing the pthread_rwlock_t and pthread_rwlockattr_t |
2 | pretty printers. | |
3 | ||
bfff8b1b | 4 | Copyright (C) 2016-2017 Free Software Foundation, Inc. |
23b5cae1 MG |
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 | ||
33 | static int rwlock_reinit (pthread_rwlock_t *rwlock, | |
34 | const pthread_rwlockattr_t *attr); | |
35 | static int test_setkind_np (pthread_rwlock_t *rwlock, | |
36 | pthread_rwlockattr_t *attr); | |
37 | static int test_setpshared (pthread_rwlock_t *rwlock, | |
38 | pthread_rwlockattr_t *attr); | |
39 | ||
40 | int | |
41 | main (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. */ | |
58 | static int | |
59 | rwlock_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. */ | |
71 | static int | |
72 | test_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. */ | |
cc25c8b4 TR |
77 | && rwlock_reinit (rwlock, attr) == PASS |
78 | && SET_KIND (attr, PTHREAD_RWLOCK_PREFER_WRITER_NP) == 0 | |
23b5cae1 MG |
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. */ | |
88 | static int | |
89 | test_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 | } |