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 | * Mach Operating System |
30 | * Copyright (c) 1987 Carnegie-Mellon University |
31 | * All rights reserved. The CMU software License Agreement specifies |
32 | * the terms and conditions for use and redistribution. |
33 | */ |
34 | /* |
35 | * File: vm_pager.h |
36 | * Author: Avadis Tevanian, Jr., Michael Wayne Young |
37 | * |
38 | * Copyright (C) 1986, Avadis Tevanian, Jr., Michael Wayne Young |
39 | * Copyright (C) 1985, Avadis Tevanian, Jr., Michael Wayne Young |
40 | * |
41 | * Pager routine interface definition |
42 | */ |
43 | |
44 | #ifndef _VM_PAGER_ |
45 | #define |
46 | |
47 | #include <mach/boolean.h> |
48 | |
49 | struct { |
50 | boolean_t ; |
51 | }; |
52 | typedef struct pager_struct *; |
53 | #define ((vm_pager_t) 0) |
54 | |
55 | #define 0 /* page read or written */ |
56 | #define 1 /* pager does not have page */ |
57 | #define 2 /* pager unable to read or write page */ |
58 | |
59 | #if 0 |
60 | #ifdef KERNEL |
61 | typedef int pager_return_t; |
62 | |
63 | extern vm_pager_t vm_pager_allocate(void); |
64 | extern void vm_pager_deallocate(void); |
65 | extern pager_return_t vm_pager_get(void); |
66 | extern pager_return_t vm_pager_put(void); |
67 | extern boolean_t vm_pager_has_page(void); |
68 | #endif /* KERNEL */ |
69 | #endif |
70 | |
71 | #endif /* _VM_PAGER_ */ |
72 | |