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/* Check resulting signal mask from POSIX timer using SIGEV_THREAD.
Copyright (C) 2020-2025 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <stdio.h>
#include <time.h>
#include <signal.h>
#include <stdbool.h>
#include <support/check.h>
#include <support/test-driver.h>
#include <support/xthread.h>
#include <internal-signals.h>
static pthread_barrier_t barrier;
static void
thread_handler (union sigval sv)
{
sigset_t ss;
sigprocmask (SIG_BLOCK, NULL, &ss);
if (test_verbose > 0)
printf ("%s: blocked signal mask = { ", __func__);
for (int sig = 1; sig < NSIG; sig++)
{
/* POSIX timers threads created to handle SIGEV_THREAD block all
signals except SIGKILL, SIGSTOP and glibc internals ones. */
if (sigismember (&ss, sig))
{
TEST_VERIFY (sig != SIGKILL && sig != SIGSTOP);
TEST_VERIFY (!is_internal_signal (sig));
}
if (test_verbose && sigismember (&ss, sig))
printf ("%d, ", sig);
}
if (test_verbose > 0)
printf ("}\n");
xpthread_barrier_wait (&barrier);
}
static int
do_test (void)
{
struct sigevent sev = { };
sev.sigev_notify = SIGEV_THREAD;
sev.sigev_notify_function = &thread_handler;
timer_t timerid;
TEST_COMPARE (timer_create (CLOCK_REALTIME, &sev, &timerid), 0);
xpthread_barrier_init (&barrier, NULL, 2);
struct itimerspec trigger = { };
trigger.it_value.tv_nsec = 1000000;
TEST_COMPARE (timer_settime (timerid, 0, &trigger, NULL), 0);
xpthread_barrier_wait (&barrier);
return 0;
}
#include <support/test-driver.c>
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