1 | /* Copyright (C) 2002-2024 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. |
3 | |
4 | The GNU C Library is free software; you can redistribute it and/or |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either |
7 | version 2.1 of the License, or (at your option) any later version. |
8 | |
9 | The GNU C Library is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | Lesser General Public License for more details. |
13 | |
14 | You should have received a copy of the GNU Lesser General Public |
15 | License along with the GNU C Library; if not, see |
16 | <https://www.gnu.org/licenses/>. */ |
17 | |
18 | #include <pthread.h> |
19 | #include <signal.h> |
20 | #include <stdio.h> |
21 | #include <stdlib.h> |
22 | #include <unistd.h> |
23 | |
24 | static int do_test (void); |
25 | |
26 | #define TEST_FUNCTION do_test () |
27 | #include "../test-skeleton.c" |
28 | |
29 | static pthread_mutex_t m = PTHREAD_MUTEX_INITIALIZER; |
30 | static pthread_rwlock_t r; |
31 | |
32 | |
33 | static void * |
34 | tf (void *arg) |
35 | { |
36 | if (pthread_rwlock_wrlock (rwlock: &r) == 0) |
37 | { |
38 | puts (s: "child: rwlock_wrlock succeeded" ); |
39 | exit (1); |
40 | } |
41 | |
42 | puts (s: "child: rwlock_wrlock returned" ); |
43 | |
44 | exit (1); |
45 | } |
46 | |
47 | |
48 | static int |
49 | do_test (void) |
50 | { |
51 | pthread_t th; |
52 | |
53 | if (pthread_rwlock_init (rwlock: &r, NULL) != 0) |
54 | { |
55 | puts (s: "rwlock_init failed" ); |
56 | return 1; |
57 | } |
58 | |
59 | if (pthread_rwlock_wrlock (rwlock: &r) != 0) |
60 | { |
61 | puts (s: "rwlock_wrlock failed" ); |
62 | return 1; |
63 | } |
64 | |
65 | if (pthread_mutex_lock (mutex: &m) != 0) |
66 | { |
67 | puts (s: "mutex_lock failed" ); |
68 | return 1; |
69 | } |
70 | |
71 | if (pthread_create (newthread: &th, NULL, start_routine: tf, NULL) != 0) |
72 | { |
73 | puts (s: "create failed" ); |
74 | return 1; |
75 | } |
76 | |
77 | delayed_exit (seconds: 1); |
78 | /* This call should never return. */ |
79 | xpthread_mutex_lock (mutex: &m); |
80 | |
81 | puts (s: "2nd mutex_lock returned" ); |
82 | return 1; |
83 | } |
84 | |