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 | |
25 | static int do_test (void); |
26 | |
27 | #define TEST_FUNCTION do_test () |
28 | #include "../test-skeleton.c" |
29 | |
30 | static void *tf (void *a) |
31 | { |
32 | puts (s: "start tf" ); |
33 | |
34 | /* Multiple locking, implicitly or explicitly, must be possible. */ |
35 | flockfile (stdout); |
36 | |
37 | puts (s: "after first flockfile" ); |
38 | |
39 | flockfile (stdout); |
40 | |
41 | puts (s: "foo" ); |
42 | |
43 | funlockfile (stdout); |
44 | |
45 | puts (s: "after first funlockfile" ); |
46 | |
47 | funlockfile (stdout); |
48 | |
49 | puts (s: "all done" ); |
50 | |
51 | return a; |
52 | } |
53 | |
54 | |
55 | int |
56 | do_test (void) |
57 | { |
58 | pthread_t th; |
59 | |
60 | if (pthread_create (newthread: &th, NULL, start_routine: tf, NULL) != 0) |
61 | { |
62 | write_message (message: "create failed\n" ); |
63 | _exit (1); |
64 | } |
65 | |
66 | void *result; |
67 | if (pthread_join (th: th, thread_return: &result) != 0) |
68 | { |
69 | puts (s: "join failed" ); |
70 | exit (1); |
71 | } |
72 | else if (result != NULL) |
73 | { |
74 | printf (format: "wrong return value: %p, expected %p\n" , result, NULL); |
75 | exit (1); |
76 | } |
77 | |
78 | puts (s: "join returned succsefully" ); |
79 | |
80 | return 0; |
81 | } |
82 | |