1 /* $OpenBSD: spinlock.h,v 1.1 2020/05/16 17:11:14 kettenis Exp $ */ 2 3 /* 4 * Copyright (c) 2014 Patrick Wildt <patrick@blueri.se> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 #ifndef _MACHINE_SPINLOCK_H_ 20 #define _MACHINE_SPINLOCK_H_ 21 22 #define _ATOMIC_LOCK_UNLOCKED (0) 23 #define _ATOMIC_LOCK_LOCKED (1) 24 typedef int _atomic_lock_t; 25 26 #endif 27