projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 1c79356b | 1 | /* |
| 91447636 | 2 | * Copyright (c) 1999-2004 Apple Computer, Inc. All rights reserved. |
| 1c79356b A |
3 | * |
| 4 | * @APPLE_LICENSE_HEADER_START@ | |
| 5 | * | |
| ff6e181a 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. Please obtain a copy of the License at | |
| 10 | * http://www.opensource.apple.com/apsl/ and read it before using this | |
| 11 | * file. | |
| 1c79356b | 12 | * |
| ff6e181a A |
13 | * The Original Code and all software distributed under the License are |
| 14 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 1c79356b A |
15 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| 16 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| ff6e181a A |
17 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
| 18 | * Please see the License for the specific language governing rights and | |
| 19 | * limitations under the License. | |
| 1c79356b A |
20 | * |
| 21 | * @APPLE_LICENSE_HEADER_END@ | |
| 22 | */ | |
| 23 | /* | |
| 1c79356b A |
24 | * Header file for Unified Buffer Cache. |
| 25 | * | |
| 26 | */ | |
| 27 | ||
| 28 | #ifndef _SYS_UBC_H_ | |
| 29 | #define _SYS_UBC_H_ | |
| 30 | ||
| 9bccf70c | 31 | #include <sys/appleapiopts.h> |
| 1c79356b | 32 | #include <sys/cdefs.h> |
| 91447636 A |
33 | #include <sys/kernel_types.h> |
| 34 | #include <kern/locks.h> | |
| 1c79356b A |
35 | #include <mach/memory_object_types.h> |
| 36 | ||
| 1c79356b | 37 | |
| 91447636 | 38 | /* defns for ubc_sync_range() and ubc_msync */ |
| 1c79356b | 39 | |
| 91447636 A |
40 | #define UBC_PUSHDIRTY 0x01 /* clean any dirty pages in the specified range to the backing store */ |
| 41 | #define UBC_PUSHALL 0x02 /* push both dirty and precious pages to the backing store */ | |
| 42 | #define UBC_INVALIDATE 0x04 /* invalidate pages in the specified range... may be used with UBC_PUSHDIRTY/ALL */ | |
| 43 | #define UBC_SYNC 0x08 /* wait for I/Os generated by UBC_PUSHDIRTY to complete */ | |
| 1c79356b A |
44 | |
| 45 | __BEGIN_DECLS | |
| 0b4e3aa0 | 46 | |
| 91447636 A |
47 | off_t ubc_blktooff(struct vnode *, daddr64_t); |
| 48 | daddr64_t ubc_offtoblk(struct vnode *, off_t); | |
| 49 | off_t ubc_getsize(struct vnode *); | |
| 50 | int ubc_setsize(struct vnode *, off_t); | |
| 0b4e3aa0 | 51 | |
| 91447636 A |
52 | struct ucred *ubc_getcred(struct vnode *); |
| 53 | int ubc_setcred(struct vnode *, struct proc *); | |
| 1c79356b | 54 | |
| 91447636 A |
55 | int ubc_sync_range(vnode_t, off_t, off_t, int); |
| 56 | errno_t ubc_msync(vnode_t, off_t, off_t, off_t *, int); | |
| 57 | int ubc_pages_resident(vnode_t); | |
| 1c79356b | 58 | |
| 1c79356b | 59 | |
| 91447636 A |
60 | /* cluster IO routines */ |
| 61 | int advisory_read(vnode_t, off_t, off_t, int); | |
| 1c79356b | 62 | |
| 91447636 A |
63 | int cluster_read(vnode_t, struct uio *, off_t, int); |
| 64 | int cluster_write(vnode_t, struct uio *, off_t, off_t, off_t, off_t, int); | |
| 65 | int cluster_pageout(vnode_t, upl_t, vm_offset_t, off_t, int, off_t, int); | |
| 66 | int cluster_pagein(vnode_t, upl_t, vm_offset_t, off_t, int, off_t, int); | |
| 67 | int cluster_push(vnode_t, int); | |
| 68 | int cluster_bp(buf_t); | |
| 69 | void cluster_zero(upl_t, vm_offset_t, int, buf_t); | |
| 1c79356b | 70 | |
| 1c79356b | 71 | |
| 91447636 A |
72 | /* UPL routines */ |
| 73 | int ubc_create_upl(vnode_t, off_t, long, upl_t *, upl_page_info_t **, int); | |
| 74 | int ubc_upl_map(upl_t, upl_offset_t *); | |
| 75 | int ubc_upl_unmap(upl_t); | |
| 76 | int ubc_upl_commit(upl_t); | |
| 77 | int ubc_upl_commit_range(upl_t, upl_offset_t, upl_size_t, int); | |
| 78 | int ubc_upl_abort(upl_t, int); | |
| 79 | int ubc_upl_abort_range(upl_t, upl_offset_t, upl_size_t, int); | |
| 1c79356b | 80 | |
| 91447636 | 81 | upl_page_info_t *ubc_upl_pageinfo(upl_t); |
| 1c79356b | 82 | |
| 91447636 | 83 | __END_DECLS |
| 9bccf70c | 84 | |
| 1c79356b A |
85 | #endif /* _SYS_UBC_H_ */ |
| 86 |