1 | /* Check if printf like functions does not disable asynchronous cancellation |
2 | mode (BZ#29214). |
3 | |
4 | Copyright (C) 2022-2024 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 | <https://www.gnu.org/licenses/>. */ |
20 | |
21 | #include <support/check.h> |
22 | #include <support/xstdio.h> |
23 | #include <support/xthread.h> |
24 | #include <sys/syscall.h> |
25 | #include <unistd.h> |
26 | |
27 | static pthread_barrier_t b; |
28 | |
29 | static void * |
30 | tf (void *arg) |
31 | { |
32 | int old; |
33 | |
34 | TEST_COMPARE (pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, NULL), 0); |
35 | |
36 | TEST_COMPARE (pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, &old), 0); |
37 | TEST_COMPARE (old, PTHREAD_CANCEL_ASYNCHRONOUS); |
38 | |
39 | /* Check if internal lock cleanup routines restore the cancellation type |
40 | correctly. */ |
41 | printf (format: "...\n" ); |
42 | TEST_COMPARE (pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, &old), 0); |
43 | TEST_COMPARE (old, PTHREAD_CANCEL_ASYNCHRONOUS); |
44 | |
45 | xpthread_barrier_wait (barrier: &b); |
46 | |
47 | /* Wait indefinitely for cancellation, which only works if asynchronous |
48 | cancellation is enabled. */ |
49 | #if defined SYS_ppoll || defined SYS_ppoll_time64 |
50 | # ifndef SYS_ppoll_time64 |
51 | # define SYS_ppoll_time64 SYS_ppoll |
52 | # endif |
53 | syscall (SYS_ppoll_time64, NULL, 0, NULL, NULL); |
54 | #else |
55 | for (;;); |
56 | #endif |
57 | |
58 | return 0; |
59 | } |
60 | |
61 | static int |
62 | do_test (void) |
63 | { |
64 | xpthread_barrier_init (barrier: &b, NULL, count: 2); |
65 | |
66 | pthread_t th = xpthread_create (NULL, thread_func: tf, NULL); |
67 | |
68 | xpthread_barrier_wait (barrier: &b); |
69 | |
70 | xpthread_cancel (thr: th); |
71 | |
72 | void *status = xpthread_join (thr: th); |
73 | TEST_VERIFY (status == PTHREAD_CANCELED); |
74 | |
75 | return 0; |
76 | } |
77 | |
78 | /* There is no need to wait full TIMEOUT if asynchronous is not working. */ |
79 | #define TIMEOUT 3 |
80 | #include <support/test-driver.c> |
81 | |