projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 1c79356b | 1 | /* |
| 3e170ce0 | 2 | * Copyright (c) 2015 Apple Inc. All rights reserved. |
| 1c79356b | 3 | * |
| 2d21ac55 | 4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ |
| 3e170ce0 | 5 | * |
| 2d21ac55 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. 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. | |
| 3e170ce0 | 14 | * |
| 2d21ac55 A |
15 | * Please obtain a copy of the License at |
| 16 | * http://www.opensource.apple.com/apsl/ and read it before using this file. | |
| 3e170ce0 | 17 | * |
| 2d21ac55 A |
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 | |
| 8f6c56a5 A |
20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| 21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 2d21ac55 A |
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. | |
| 3e170ce0 | 25 | * |
| 2d21ac55 | 26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ |
| 1c79356b | 27 | */ |
| 1c79356b | 28 | |
| 39037602 A |
29 | #ifndef SYS_DOC_TOMBSTONE_H_ |
| 30 | #define SYS_DOC_TOMBSTONE_H_ | |
| 3e170ce0 | 31 | |
| 39037602 A |
32 | #include <sys/types.h> |
| 33 | #include <stdbool.h> | |
| 3e170ce0 | 34 | |
| 39037602 | 35 | #ifdef KERNEL_PRIVATE |
| 1c79356b | 36 | |
| 3e170ce0 | 37 | /* |
| 39037602 A |
38 | * struct representing a document "tombstone" that's recorded |
| 39 | * when a thread manipulates files marked with a document-id. | |
| 40 | * if the thread recreates the same item, this tombstone is | |
| 41 | * used to preserve the document_id on the new file. | |
| 42 | * | |
| 43 | * It is a separate structure because of its size - we want to | |
| 44 | * allocate it on demand instead of just stuffing it into the | |
| 45 | * uthread structure. | |
| 1c79356b | 46 | */ |
| 39037602 A |
47 | struct doc_tombstone { |
| 48 | struct vnode *t_lastop_parent; | |
| 49 | struct vnode *t_lastop_item; | |
| 50 | uint32_t t_lastop_parent_vid; | |
| 51 | uint32_t t_lastop_item_vid; | |
| 52 | uint64_t t_lastop_fileid; | |
| 53 | uint64_t t_lastop_document_id; | |
| 54 | unsigned char t_lastop_filename[NAME_MAX+1]; | |
| 55 | }; | |
| 56 | ||
| 57 | struct componentname; | |
| 58 | ||
| 59 | struct doc_tombstone *doc_tombstone_get(void); | |
| 60 | void doc_tombstone_clear(struct doc_tombstone *ut, struct vnode **old_vpp); | |
| 61 | void doc_tombstone_save(struct vnode *dvp, struct vnode *vp, | |
| 62 | struct componentname *cnp, uint64_t doc_id, | |
| 63 | ino64_t file_id); | |
| 64 | bool doc_tombstone_should_ignore_name(const char *nameptr, int len); | |
| 65 | bool doc_tombstone_should_save(struct doc_tombstone *ut, struct vnode *vp, | |
| 66 | struct componentname *cnp); | |
| 67 | ||
| 68 | #endif // defined(KERNEL_PRIVATE) | |
| 3e170ce0 | 69 | |
| 39037602 | 70 | #endif // SYS_DOC_TOMBSTONE_H_ |