1/*
2 * Copyright (c) 2000-2004 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
33#ifndef	_MACH_DEFAULT_PAGER_TYPES_H_
34#define _MACH_DEFAULT_PAGER_TYPES_H_
35
36#include <sys/appleapiopts.h>
37
38#ifdef __APPLE_API_UNSTABLE
39
40#include <mach/mach_types.h>
41#include <mach/machine/vm_types.h>
42#include <mach/memory_object_types.h>
43
44typedef	memory_object_default_t	default_pager_t;
45
46/*
47 *	Remember to update the mig type definitions
48 *	in default_pager_types.defs when adding/removing fields.
49 */
50
51typedef struct default_pager_info {
52	vm_size_t 	dpi_total_space; /* size of backing store */
53	vm_size_t	dpi_free_space;	 /* how much of it is unused */
54	vm_size_t	dpi_page_size;	 /* the pager's vm page size */
55} default_pager_info_t;
56
57typedef struct default_pager_info_64 {
58	memory_object_size_t 	dpi_total_space; /* size of backing store */
59	memory_object_size_t	dpi_free_space;	 /* how much of it is unused */
60	vm_size_t		dpi_page_size;	 /* the pager's vm page size */
61	int			dpi_flags;
62#define DPI_ENCRYPTED	0x1	/* swap files are encrypted */
63} default_pager_info_64_t;
64
65typedef integer_t *backing_store_info_t;
66typedef int	backing_store_flavor_t;
67typedef int	*vnode_ptr_t;
68
69#define BACKING_STORE_BASIC_INFO	1
70#define BACKING_STORE_BASIC_INFO_COUNT \
71		(sizeof(struct backing_store_basic_info)/sizeof(integer_t))
72struct backing_store_basic_info {
73	natural_t	pageout_calls;		/* # pageout calls */
74	natural_t	pagein_calls;		/* # pagein calls */
75	natural_t	pages_in;		/* # pages paged in (total) */
76	natural_t	pages_out;		/* # pages paged out (total) */
77	natural_t	pages_unavail;		/* # zero-fill pages */
78	natural_t	pages_init;		/* # page init requests */
79	natural_t	pages_init_writes;	/* # page init writes */
80
81	natural_t	bs_pages_total;		/* # pages (total) */
82	natural_t	bs_pages_free;		/* # unallocated pages */
83	natural_t	bs_pages_in;		/* # page read requests */
84	natural_t	bs_pages_in_fail;	/* # page read errors */
85	natural_t	bs_pages_out;		/* # page write requests */
86	natural_t	bs_pages_out_fail;	/* # page write errors */
87
88	integer_t	bs_priority;
89	integer_t	bs_clsize;
90};
91typedef struct backing_store_basic_info	*backing_store_basic_info_t;
92
93
94typedef struct default_pager_object {
95	vm_offset_t dpo_object;		/* object managed by the pager */
96	vm_size_t dpo_size;		/* backing store used for the object */
97} default_pager_object_t;
98
99typedef default_pager_object_t *default_pager_object_array_t;
100
101typedef struct default_pager_page {
102	vm_offset_t dpp_offset;		/* offset of the page in its object */
103} default_pager_page_t;
104
105typedef default_pager_page_t *default_pager_page_array_t;
106
107#define DEFAULT_PAGER_BACKING_STORE_MAXPRI	4
108
109#define HI_WAT_ALERT		0x01
110#define LO_WAT_ALERT		0x02
111#define SWAP_ENCRYPT_ON		0x04
112#define SWAP_ENCRYPT_OFF	0x08
113#define SWAP_COMPACT_DISABLE	0x10
114#define SWAP_COMPACT_ENABLE	0x20
115#define PROC_RESUME		0x40
116#define SWAP_FILE_CREATION_ERROR	0x80
117#define USE_EMERGENCY_SWAP_FILE_FIRST	0x100
118
119#endif /* __APPLE_API_UNSTABLE */
120
121#endif	/* _MACH_DEFAULT_PAGER_TYPES_H_ */
122