| | 1 | /* |
| | 2 | * Copyright (c) 1999-2004 Apple Computer, Inc. All rights reserved. |
| | 3 | * |
| | 4 | * @APPLE_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. Please obtain a copy of the License at |
| | 10 | * http://www.opensource.apple.com/apsl/ and read it before using this |
| | 11 | * file. |
| | 12 | * |
| | 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 |
| | 15 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| | 16 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
| | 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. |
| | 20 | * |
| | 21 | * @APPLE_LICENSE_HEADER_END@ |
| | 22 | */ |
| | 23 | /* |
| | 24 | * Header file for Unified Buffer Cache. |
| | 25 | * |
| | 26 | */ |
| | 27 | |
| | 28 | #ifndef _SYS_UBC_H_ |
| | 29 | #define _SYS_UBC_H_ |
| | 30 | |
| | 31 | #include <sys/appleapiopts.h> |
| | 32 | #include <sys/cdefs.h> |
| | 33 | #include <sys/kernel_types.h> |
| | 34 | #include <kern/locks.h> |
| | 35 | #include <mach/memory_object_types.h> |
| | 36 | |
| | 37 | |
| | 38 | /* defns for ubc_sync_range() and ubc_msync */ |
| | 39 | |
| | 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 */ |
| | 44 | |
| | 45 | __BEGIN_DECLS |
| | 46 | |
| | 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); |
| | 51 | |
| | 52 | struct ucred *ubc_getcred(struct vnode *); |
| | 53 | int ubc_setcred(struct vnode *, struct proc *); |
| | 54 | |
| | 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); |
| | 58 | |
| | 59 | |
| | 60 | /* cluster IO routines */ |
| | 61 | int advisory_read(vnode_t, off_t, off_t, int); |
| | 62 | |
| | 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); |
| | 70 | |
| | 71 | |
| | 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); |
| | 80 | |
| | 81 | upl_page_info_t *ubc_upl_pageinfo(upl_t); |
| | 82 | |
| | 83 | __END_DECLS |
| | 84 | |
| | 85 | #endif /* _SYS_UBC_H_ */ |
| | 86 | |
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