1 | /* Check resulting signal mask from POSIX timer using SIGEV_THREAD. |
2 | Copyright (C) 2020-2022 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <stdio.h> |
20 | #include <time.h> |
21 | #include <signal.h> |
22 | #include <stdbool.h> |
23 | |
24 | #include <support/check.h> |
25 | #include <support/test-driver.h> |
26 | #include <support/xthread.h> |
27 | |
28 | #include <internal-signals.h> |
29 | |
30 | static pthread_barrier_t barrier; |
31 | |
32 | static void |
33 | thread_handler (union sigval sv) |
34 | { |
35 | sigset_t ss; |
36 | sigprocmask (SIG_BLOCK, NULL, oset: &ss); |
37 | if (test_verbose > 0) |
38 | printf (format: "%s: blocked signal mask = { " , __func__); |
39 | for (int sig = 1; sig < NSIG; sig++) |
40 | { |
41 | /* POSIX timers threads created to handle SIGEV_THREAD block all |
42 | signals except SIGKILL, SIGSTOP and glibc internals ones. */ |
43 | if (sigismember (&ss, sig)) |
44 | { |
45 | TEST_VERIFY (sig != SIGKILL && sig != SIGSTOP); |
46 | TEST_VERIFY (!__is_internal_signal (sig)); |
47 | } |
48 | if (test_verbose && sigismember (&ss, sig)) |
49 | printf (format: "%d, " , sig); |
50 | } |
51 | if (test_verbose > 0) |
52 | printf (format: "}\n" ); |
53 | |
54 | xpthread_barrier_wait (barrier: &barrier); |
55 | } |
56 | |
57 | static int |
58 | do_test (void) |
59 | { |
60 | struct sigevent sev = { 0 }; |
61 | sev.sigev_notify = SIGEV_THREAD; |
62 | sev.sigev_notify_function = &thread_handler; |
63 | |
64 | timer_t timerid; |
65 | TEST_COMPARE (timer_create (CLOCK_REALTIME, &sev, &timerid), 0); |
66 | |
67 | xpthread_barrier_init (barrier: &barrier, NULL, count: 2); |
68 | |
69 | struct itimerspec trigger = { 0 }; |
70 | trigger.it_value.tv_nsec = 1000000; |
71 | TEST_COMPARE (timer_settime (timerid, 0, &trigger, NULL), 0); |
72 | |
73 | xpthread_barrier_wait (barrier: &barrier); |
74 | |
75 | return 0; |
76 | } |
77 | |
78 | #include <support/test-driver.c> |
79 | |