1a9643ea8Slogwang /*- 2*22ce4affSfengbojiang * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3*22ce4affSfengbojiang * 4a9643ea8Slogwang * Copyright (c) 2008 Attilio Rao <[email protected]> 5a9643ea8Slogwang * All rights reserved. 6a9643ea8Slogwang * 7a9643ea8Slogwang * Redistribution and use in source and binary forms, with or without 8a9643ea8Slogwang * modification, are permitted provided that the following conditions 9a9643ea8Slogwang * are met: 10a9643ea8Slogwang * 1. Redistributions of source code must retain the above copyright 11a9643ea8Slogwang * notice(s), this list of conditions and the following disclaimer as 12a9643ea8Slogwang * the first lines of this file unmodified other than the possible 13a9643ea8Slogwang * addition of one or more copyright notices. 14a9643ea8Slogwang * 2. Redistributions in binary form must reproduce the above copyright 15a9643ea8Slogwang * notice(s), this list of conditions and the following disclaimer in the 16a9643ea8Slogwang * documentation and/or other materials provided with the distribution. 17a9643ea8Slogwang * 18a9643ea8Slogwang * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY 19a9643ea8Slogwang * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 20a9643ea8Slogwang * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 21a9643ea8Slogwang * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE LIABLE FOR ANY 22a9643ea8Slogwang * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 23a9643ea8Slogwang * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 24a9643ea8Slogwang * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 25a9643ea8Slogwang * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26a9643ea8Slogwang * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27a9643ea8Slogwang * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH 28a9643ea8Slogwang * DAMAGE. 29a9643ea8Slogwang * 30a9643ea8Slogwang * $FreeBSD$ 31a9643ea8Slogwang */ 32a9643ea8Slogwang 33a9643ea8Slogwang #ifndef _SYS__LOCKMGR_H_ 34a9643ea8Slogwang #define _SYS__LOCKMGR_H_ 35a9643ea8Slogwang 36a9643ea8Slogwang #ifdef DEBUG_LOCKS 37a9643ea8Slogwang #include <sys/_stack.h> 38a9643ea8Slogwang #endif 39a9643ea8Slogwang 40a9643ea8Slogwang struct lock { 41a9643ea8Slogwang struct lock_object lock_object; 42a9643ea8Slogwang volatile uintptr_t lk_lock; 43a9643ea8Slogwang u_int lk_exslpfail; 44a9643ea8Slogwang int lk_timo; 45a9643ea8Slogwang int lk_pri; 46a9643ea8Slogwang #ifdef DEBUG_LOCKS 47a9643ea8Slogwang struct stack lk_stack; 48a9643ea8Slogwang #endif 49a9643ea8Slogwang }; 50a9643ea8Slogwang 51a9643ea8Slogwang #endif 52