1/*
2 * Copyright (c) 2000-2005 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 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/*
58 *	kern/host.h
59 *
60 *	Definitions for host data structures.
61 *
62 */
63
64#ifndef	_KERN_HOST_H_
65#define _KERN_HOST_H_
66
67#include <mach/mach_types.h>
68#include <sys/cdefs.h>
69
70#ifdef	MACH_KERNEL_PRIVATE
71
72#include <kern/locks.h>
73#include <kern/exception.h>
74#include <mach/exception_types.h>
75#include <mach/host_special_ports.h>
76#include <kern/kern_types.h>
77#include <mach/vm_statistics.h>
78
79struct	host {
80	decl_lck_mtx_data(,lock)		/* lock to protect exceptions */
81	ipc_port_t special[HOST_MAX_SPECIAL_PORT + 1];
82	struct exception_action exc_actions[EXC_TYPES_COUNT];
83};
84
85typedef struct host	host_data_t;
86
87extern host_data_t	realhost;
88
89#define host_lock(host)		lck_mtx_lock(&(host)->lock)
90#define host_unlock(host)	lck_mtx_unlock(&(host)->lock)
91
92extern vm_extmod_statistics_data_t host_extmod_statistics;
93
94typedef struct {
95	uint64_t total_user_time;
96	uint64_t total_system_time;
97	uint64_t task_interrupt_wakeups;
98	uint64_t task_platform_idle_wakeups;
99	uint64_t task_timer_wakeups_bin_1;
100	uint64_t task_timer_wakeups_bin_2;
101} expired_task_statistics_t;
102
103extern expired_task_statistics_t dead_task_statistics;
104
105#endif	/* MACH_KERNEL_PRIVATE */
106
107/*
108 * Access routines for inside the kernel.
109 */
110
111__BEGIN_DECLS
112
113extern host_t			host_self(void);
114extern host_priv_t		host_priv_self(void);
115extern host_security_t	host_security_self(void);
116
117__END_DECLS
118
119#endif	/* _KERN_HOST_H_ */
120