1 | /* Check if the thread created by POSIX timer using SIGEV_THREAD is |
2 | cancellable. |
3 | Copyright (C) 2020-2024 Free Software Foundation, Inc. |
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 |
18 | <https://www.gnu.org/licenses/>. */ |
19 | |
20 | #include <stdio.h> |
21 | #include <time.h> |
22 | #include <signal.h> |
23 | #include <unistd.h> |
24 | #include <stdbool.h> |
25 | |
26 | #include <support/check.h> |
27 | #include <support/test-driver.h> |
28 | #include <support/xthread.h> |
29 | |
30 | static pthread_barrier_t barrier; |
31 | static pthread_t timer_thread; |
32 | |
33 | static void |
34 | cl (void *arg) |
35 | { |
36 | xpthread_barrier_wait (barrier: &barrier); |
37 | } |
38 | |
39 | static void |
40 | thread_handler (union sigval sv) |
41 | { |
42 | timer_thread = pthread_self (); |
43 | |
44 | xpthread_barrier_wait (barrier: &barrier); |
45 | |
46 | pthread_cleanup_push (cl, NULL); |
47 | while (1) |
48 | clock_nanosleep (CLOCK_REALTIME, flags: 0, req: &(struct timespec) { 1, 0 }, NULL); |
49 | pthread_cleanup_pop (0); |
50 | } |
51 | |
52 | static int |
53 | do_test (void) |
54 | { |
55 | struct sigevent sev = { 0 }; |
56 | sev.sigev_notify = SIGEV_THREAD; |
57 | sev.sigev_notify_function = &thread_handler; |
58 | |
59 | timer_t timerid; |
60 | TEST_COMPARE (timer_create (CLOCK_REALTIME, &sev, &timerid), 0); |
61 | |
62 | xpthread_barrier_init (barrier: &barrier, NULL, count: 2); |
63 | |
64 | struct itimerspec trigger = { 0 }; |
65 | trigger.it_value.tv_nsec = 1000000; |
66 | TEST_COMPARE (timer_settime (timerid, 0, &trigger, NULL), 0); |
67 | |
68 | xpthread_barrier_wait (barrier: &barrier); |
69 | |
70 | xpthread_cancel (thr: timer_thread); |
71 | |
72 | xpthread_barrier_wait (barrier: &barrier); |
73 | |
74 | return 0; |
75 | } |
76 | |
77 | /* A stall in cancellation is a regression. */ |
78 | #include <support/test-driver.c> |
79 | |