1 /* Test of spin locks for communication between threads and signal handlers.
2 Copyright (C) 2005, 2008-2021 Free Software Foundation, Inc.
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 3 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <https://www.gnu.org/licenses/>. */
17 /* Written by Bruno Haible <bruno@clisp.org>, 2020. */
22 #include "asyncsafe-spin.h"
26 asyncsafe_spinlock_t global_spin_lock = ASYNCSAFE_SPIN_INIT;
34 sigaddset (&set, SIGINT);
36 /* Check a spin-lock initialized through the constant initializer. */
39 asyncsafe_spin_lock (&global_spin_lock, &set, &saved_set);
40 asyncsafe_spin_unlock (&global_spin_lock, &saved_set);
43 /* Check a spin-lock initialized through asyncsafe_spin_init. */
45 asyncsafe_spinlock_t local_spin_lock;
48 asyncsafe_spin_init (&local_spin_lock);
50 for (i = 0; i < 10; i++)
53 asyncsafe_spin_lock (&local_spin_lock, &set, &saved_set);
54 asyncsafe_spin_unlock (&local_spin_lock, &saved_set);
57 asyncsafe_spin_destroy (&local_spin_lock);