1/*
2 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28/*
29 * @OSF_COPYRIGHT@
30 */
31/*
32 * Mach Operating System
33 * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
34 * All Rights Reserved.
35 *
36 * Permission to use, copy, modify and distribute this software and its
37 * documentation is hereby granted, provided that both the copyright
38 * notice and this permission notice appear in all copies of the
39 * software, derivative works or modified versions, and any portions
40 * thereof, and that both notices appear in supporting documentation.
41 *
42 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
43 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
44 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
45 *
46 * Carnegie Mellon requests users of this software to return to
47 *
48 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
49 *  School of Computer Science
50 *  Carnegie Mellon University
51 *  Pittsburgh PA 15213-3890
52 *
53 * any improvements or extensions that they make and grant Carnegie Mellon
54 * the rights to redistribute these changes.
55 */
56/*
57 *	File:	kern/simple_lock_types.h
58 *	Author:	Avadis Tevanian, Jr., Michael Wayne Young
59 *	Date:	1985
60 *
61 *	Simple lock data type definitions
62 */
63#ifdef	KERNEL_PRIVATE
64
65#ifndef	_I386_SIMPLE_LOCK_TYPES_H_
66#define	_I386_SIMPLE_LOCK_TYPES_H_
67
68#include <mach/boolean.h>
69#include <kern/kern_types.h>
70
71#include <sys/appleapiopts.h>
72#if defined(MACH_KERNEL_PRIVATE) && defined(__APPLE_API_PRIVATE)
73#include <i386/hw_lock_types.h>
74#include <mach_ldebug.h>
75
76#if	MACH_LDEBUG
77#define	USLOCK_DEBUG 1
78#else
79#define	USLOCK_DEBUG 0
80#endif	/* USLOCK_DEBUG */
81
82typedef struct uslock_debug {
83	void			*lock_pc;	/* pc where lock operation began    */
84	void			*lock_thread;	/* thread that acquired lock */
85	void			*unlock_thread;	/* last thread to release lock */
86	void			*unlock_pc;	/* pc where lock operation ended    */
87	unsigned long	duration[2];
88	unsigned short	state;
89	unsigned char	lock_cpu;
90	unsigned char	unlock_cpu;
91} uslock_debug;
92
93typedef struct slock {
94	hw_lock_data_t	interlock;	/* must be first... see lock.c */
95#if	USLOCK_DEBUG
96	unsigned short	lock_type;	/* must be second... see lock.c */
97#define USLOCK_TAG	0x5353
98	uslock_debug	debug;
99#endif
100} usimple_lock_data_t, *usimple_lock_t;
101
102extern void			i386_lock_unlock_with_flush(
103					hw_lock_t);
104#else
105
106typedef	struct slock {
107	unsigned long	lock_data[10];
108} usimple_lock_data_t, *usimple_lock_t;
109
110#endif	/* defined(MACH_KERNEL_PRIVATE) && defined(__APPLE_API_PRIVATE) */
111
112#define	USIMPLE_LOCK_NULL	((usimple_lock_t) 0)
113
114#if !defined(decl_simple_lock_data)
115typedef usimple_lock_data_t	*simple_lock_t;
116typedef usimple_lock_data_t	simple_lock_data_t;
117
118#define	decl_simple_lock_data(class,name) \
119	class	simple_lock_data_t	name;
120
121#endif	/* !defined(decl_simple_lock_data) */
122
123#endif /* !_I386_SIMPLE_LOCK_TYPES_H_ */
124
125#endif	/* KERNEL_PRIVATE */
126