1/*
2 * Copyright (c) 1999 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 * Mach Operating System
30 * Copyright (c) 1991,1990,1989,1988,1987,1986 Carnegie Mellon University
31 * All Rights Reserved.
32 *
33 * Permission to use, copy, modify and distribute this software and its
34 * documentation is hereby granted, provided that both the copyright
35 * notice and this permission notice appear in all copies of the
36 * software, derivative works or modified versions, and any portions
37 * thereof, and that both notices appear in supporting documentation.
38 *
39 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
40 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
41 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
42 *
43 * Carnegie Mellon requests users of this software to return to
44 *
45 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
46 *  School of Computer Science
47 *  Carnegie Mellon University
48 *  Pittsburgh PA 15213-3890
49 *
50 * any improvements or extensions that they make and grant Carnegie Mellon
51 * the rights to redistribute these changes.
52 */
53
54/*
55 *	Items provided by the Mach environment initialization.
56 */
57
58#ifndef	_MACH_INIT_
59#define	_MACH_INIT_	1
60
61#include <mach/mach_types.h>
62#include <stdarg.h>
63
64#include <sys/cdefs.h>
65
66/*
67 *	Kernel-related ports; how a task/thread controls itself
68 */
69
70__BEGIN_DECLS
71extern mach_port_t mach_host_self(void);
72extern mach_port_t mach_thread_self(void);
73extern kern_return_t host_page_size(host_t, vm_size_t *);
74
75extern mach_port_t	mach_task_self_;
76#define	mach_task_self() mach_task_self_
77#define	current_task()	mach_task_self()
78
79__END_DECLS
80#include <mach/mach_traps.h>
81__BEGIN_DECLS
82
83/*
84 *	Other important ports in the Mach user environment
85 */
86
87extern	mach_port_t	bootstrap_port;
88
89/*
90 *	Where these ports occur in the "mach_ports_register"
91 *	collection... only servers or the runtime library need know.
92 */
93
94#define	NAME_SERVER_SLOT	0
95#define	ENVIRONMENT_SLOT	1
96#define SERVICE_SLOT		2
97
98#define	MACH_PORTS_SLOTS_USED	3
99
100/*
101 *	Globally interesting numbers.
102 *	These macros assume vm_page_size is a power-of-2.
103 */
104
105extern	vm_size_t	vm_page_size;
106extern	vm_size_t	vm_page_mask;
107extern	int		vm_page_shift;
108
109#define trunc_page(x)	((x) & (~(vm_page_size - 1)))
110#define round_page(x)	trunc_page((x) + (vm_page_size - 1))
111
112/*
113 *	Page-size rounding macros for the fixed-width VM types.
114 */
115#define mach_vm_trunc_page(x) ((mach_vm_offset_t)(x) & ~((signed)PAGE_MASK))
116#define mach_vm_round_page(x) (((mach_vm_offset_t)(x) + PAGE_MASK) & ~((signed)PAGE_MASK))
117
118/*
119 *	fprintf_stderr uses vprintf_stderr_func to produce
120 *	error messages, this can be overridden by a user
121 *	application to point to a user-specified output function
122 */
123extern int (*vprintf_stderr_func)(const char *format, va_list ap);
124
125__END_DECLS
126
127#endif	/* _MACH_INIT_ */
128