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/* Tests for sigisemptyset and pthread_sigmask.
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 <signal.h>
#include <support/check.h>
#include <support/xthread.h>
static void *
tf (void *arg)
{
{
sigset_t set;
sigemptyset (&set);
TEST_COMPARE (pthread_sigmask (SIG_BLOCK, 0, &set), 0);
TEST_COMPARE (sigisemptyset (&set), 1);
}
{
sigset_t set;
sigfillset (&set);
TEST_COMPARE (pthread_sigmask (SIG_BLOCK, 0, &set), 0);
TEST_COMPARE (sigisemptyset (&set), 1);
}
return NULL;
}
static int
do_test (void)
{
/* Ensure current SIG_BLOCK mask empty. */
{
sigset_t set;
sigemptyset (&set);
TEST_COMPARE (sigprocmask (SIG_BLOCK, &set, 0), 0);
}
{
pthread_t thr = xpthread_create (NULL, tf, NULL);
xpthread_join (thr);
}
return 0;
}
#include <support/test-driver.c>
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