[apple/xnu.git] / osfmk / i386 / simple_lock.h

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code 
 * as defined in and that are subject to the Apple Public Source License 
 * Version 2.0 (the 'License'). You may not use this file except in 
 * compliance with the License.  The rights granted to you under the 
 * License may not be used to create, or enable the creation or 
 * redistribution of, unlawful or unlicensed copies of an Apple operating 
 * system, or to circumvent, violate, or enable the circumvention or 
 * violation of, any terms of an Apple operating system software license 
 * agreement.
 *
 * Please obtain a copy of the License at 
 * http://www.opensource.apple.com/apsl/ and read it before using this 
 * file.
 *
 * The Original Code and all software distributed under the License are 
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
 * Please see the License for the specific language governing rights and 
 * limitations under the License.
 *
 * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
 */
/*
 * @OSF_COPYRIGHT@
 */
/* 
 * Mach Operating System
 * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
 * All Rights Reserved.
 * 
 * Permission to use, copy, modify and distribute this software and its
 * documentation is hereby granted, provided that both the copyright
 * notice and this permission notice appear in all copies of the
 * software, derivative works or modified versions, and any portions
 * thereof, and that both notices appear in supporting documentation.
 * 
 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
 * 
 * Carnegie Mellon requests users of this software to return to
 * 
 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
 *  School of Computer Science
 *  Carnegie Mellon University
 *  Pittsburgh PA 15213-3890
 * 
 * any improvements or extensions that they make and grant Carnegie Mellon
 * the rights to redistribute these changes.
 */
/*
 *	File:	kern/simple_lock_types.h
 *	Author:	Avadis Tevanian, Jr., Michael Wayne Young
 *	Date:	1985
 *
 *	Simple lock data type definitions
 */
#ifdef	KERNEL_PRIVATE

#ifndef	_I386_SIMPLE_LOCK_TYPES_H_
#define	_I386_SIMPLE_LOCK_TYPES_H_

#include <mach/boolean.h>
#include <kern/kern_types.h>

#include <sys/appleapiopts.h>
#if defined(MACH_KERNEL_PRIVATE) && defined(__APPLE_API_PRIVATE)
#include <i386/hw_lock_types.h>
#include <mach_ldebug.h>
#endif

#if defined(MACH_KERNEL_PRIVATE) && defined(__APPLE_API_PRIVATE)

#if	MACH_LDEBUG
#define	USLOCK_DEBUG 1
#else
#define	USLOCK_DEBUG 0
#endif	/* USLOCK_DEBUG */

typedef struct uslock_debug {
	void			*lock_pc;	/* pc where lock operation began    */
	void			*lock_thread;	/* thread that acquired lock */
	unsigned long	duration[2];
	unsigned short	state;
	unsigned char	lock_cpu;
	void			*unlock_thread;	/* last thread to release lock */
	unsigned char	unlock_cpu;
	void			*unlock_pc;	/* pc where lock operation ended    */
} uslock_debug;

typedef struct slock {
	hw_lock_data_t	interlock;	/* must be first... see lock.c */
	unsigned short	lock_type;	/* must be second... see lock.c */
#define USLOCK_TAG	0x5353
	uslock_debug	debug;
} usimple_lock_data_t, *usimple_lock_t;

#else

typedef	struct slock {
	unsigned int	lock_data[10];
} usimple_lock_data_t, *usimple_lock_t;

#endif	/* defined(MACH_KERNEL_PRIVATE) && defined(__APPLE_API_PRIVATE) */

#define	USIMPLE_LOCK_NULL	((usimple_lock_t) 0)

#if !defined(decl_simple_lock_data)
typedef usimple_lock_data_t	*simple_lock_t;
typedef usimple_lock_data_t	simple_lock_data_t;

#define	decl_simple_lock_data(class,name) \
	class	simple_lock_data_t	name;

#endif	/* !defined(decl_simple_lock_data) */

#endif /* !_I386_SIMPLE_LOCK_TYPES_H_ */

#endif	/* KERNEL_PRIVATE */
Commit	Line	Data
1c79356b A	1	/*
	2	* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
	3	*
8ad349bb	4	* @APPLE_LICENSE_OSREFERENCE_HEADER_START@
1c79356b	5	*
8ad349bb A	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
	10	* License may not be used to create, or enable the creation or
	11	* redistribution of, unlawful or unlicensed copies of an Apple operating
	12	* system, or to circumvent, violate, or enable the circumvention or
	13	* violation of, any terms of an Apple operating system software license
	14	* agreement.
	15	*
	16	* Please obtain a copy of the License at
	17	* http://www.opensource.apple.com/apsl/ and read it before using this
	18	* file.
	19	*
	20	* The Original Code and all software distributed under the License are
	21	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	22	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	23	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	24	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	25	* Please see the License for the specific language governing rights and
	26	* limitations under the License.
	27	*
	28	* @APPLE_LICENSE_OSREFERENCE_HEADER_END@
1c79356b A	29	*/
	30	/*
	31	* @OSF_COPYRIGHT@
	32	*/
	33	/*
	34	* Mach Operating System
	35	* Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
	36	* All Rights Reserved.
	37	*
	38	* Permission to use, copy, modify and distribute this software and its
	39	* documentation is hereby granted, provided that both the copyright
	40	* notice and this permission notice appear in all copies of the
	41	* software, derivative works or modified versions, and any portions
	42	* thereof, and that both notices appear in supporting documentation.
	43	*
	44	* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
	45	* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
	46	* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
	47	*
	48	* Carnegie Mellon requests users of this software to return to
	49	*
	50	* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
	51	* School of Computer Science
	52	* Carnegie Mellon University
	53	* Pittsburgh PA 15213-3890
	54	*
	55	* any improvements or extensions that they make and grant Carnegie Mellon
	56	* the rights to redistribute these changes.
	57	*/
	58	/*
91447636 A	59	* File: kern/simple_lock_types.h
	60	* Author: Avadis Tevanian, Jr., Michael Wayne Young
	61	* Date: 1985
	62	*
	63	* Simple lock data type definitions
1c79356b	64	*/
91447636	65	#ifdef KERNEL_PRIVATE
1c79356b	66
91447636 A	67	#ifndef _I386_SIMPLE_LOCK_TYPES_H_
91447636 A	68	#define _I386_SIMPLE_LOCK_TYPES_H_
1c79356b A	69
1c79356b A	70	#include <mach/boolean.h>
1c79356b A	71	#include <kern/kern_types.h>
1c79356b A	72
9bccf70c	73	#include <sys/appleapiopts.h>
91447636 A	74	#if defined(MACH_KERNEL_PRIVATE) && defined(__APPLE_API_PRIVATE)
	75	#include <i386/hw_lock_types.h>
	76	#include <mach_ldebug.h>
	77	#endif
	78
	79	#if defined(MACH_KERNEL_PRIVATE) && defined(__APPLE_API_PRIVATE)
	80
	81	#if MACH_LDEBUG
	82	#define USLOCK_DEBUG 1
	83	#else
	84	#define USLOCK_DEBUG 0
	85	#endif /* USLOCK_DEBUG */
	86
	87	typedef struct uslock_debug {
	88	void lock_pc; / pc where lock operation began */
	89	void lock_thread; / thread that acquired lock */
	90	unsigned long duration[2];
	91	unsigned short state;
	92	unsigned char lock_cpu;
	93	void unlock_thread; / last thread to release lock */
	94	unsigned char unlock_cpu;
	95	void unlock_pc; / pc where lock operation ended */
	96	} uslock_debug;
9bccf70c	97
91447636 A	98	typedef struct slock {
	99	hw_lock_data_t interlock; /* must be first... see lock.c */
	100	unsigned short lock_type; /* must be second... see lock.c */
	101	#define USLOCK_TAG 0x5353
	102	uslock_debug debug;
	103	} usimple_lock_data_t, *usimple_lock_t;
9bccf70c	104
91447636	105	#else
1c79356b	106
91447636 A	107	typedef struct slock {
	108	unsigned int lock_data[10];
	109	} usimple_lock_data_t, *usimple_lock_t;
1c79356b	110
91447636	111	#endif /* defined(MACH_KERNEL_PRIVATE) && defined(__APPLE_API_PRIVATE) */
1c79356b	112
91447636	113	#define USIMPLE_LOCK_NULL ((usimple_lock_t) 0)
0b4e3aa0	114
91447636 A	115	#if !defined(decl_simple_lock_data)
	116	typedef usimple_lock_data_t *simple_lock_t;
	117	typedef usimple_lock_data_t simple_lock_data_t;
1c79356b	118
91447636 A	119	#define decl_simple_lock_data(class,name) \
91447636 A	120	class simple_lock_data_t name;
1c79356b	121
91447636	122	#endif /* !defined(decl_simple_lock_data) */
0b4e3aa0	123
91447636	124	#endif /* !_I386_SIMPLE_LOCK_TYPES_H_ */
9bccf70c	125
91447636	126	#endif /* KERNEL_PRIVATE */