70 lines
2.6 KiB
C
70 lines
2.6 KiB
C
/*
|
|
* Copyright (c) 2015 Apple Inc. All rights reserved.
|
|
*
|
|
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
|
|
*
|
|
* This file contains Original Code and/or Modifications of Original Code
|
|
* as defined in and that are subject to the Apple Public Source License
|
|
* Version 2.0 (the 'License'). You may not use this file except in
|
|
* compliance with the License. The rights granted to you under the License
|
|
* may not be used to create, or enable the creation or redistribution of,
|
|
* unlawful or unlicensed copies of an Apple operating system, or to
|
|
* circumvent, violate, or enable the circumvention or violation of, any
|
|
* terms of an Apple operating system software license agreement.
|
|
*
|
|
* Please obtain a copy of the License at
|
|
* http://www.opensource.apple.com/apsl/ and read it before using this file.
|
|
*
|
|
* The Original Code and all software distributed under the License are
|
|
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
|
|
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
|
|
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
|
|
* Please see the License for the specific language governing rights and
|
|
* limitations under the License.
|
|
*
|
|
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
|
|
*/
|
|
|
|
#ifndef SYS_DOC_TOMBSTONE_H_
|
|
#define SYS_DOC_TOMBSTONE_H_
|
|
|
|
#include <sys/types.h>
|
|
#include <stdbool.h>
|
|
|
|
#ifdef KERNEL_PRIVATE
|
|
|
|
/*
|
|
* struct representing a document "tombstone" that's recorded
|
|
* when a thread manipulates files marked with a document-id.
|
|
* if the thread recreates the same item, this tombstone is
|
|
* used to preserve the document_id on the new file.
|
|
*
|
|
* It is a separate structure because of its size - we want to
|
|
* allocate it on demand instead of just stuffing it into the
|
|
* uthread structure.
|
|
*/
|
|
struct doc_tombstone {
|
|
struct vnode *t_lastop_parent;
|
|
struct vnode *t_lastop_item;
|
|
uint32_t t_lastop_parent_vid;
|
|
uint32_t t_lastop_item_vid;
|
|
uint64_t t_lastop_fileid;
|
|
uint64_t t_lastop_document_id;
|
|
unsigned char t_lastop_filename[NAME_MAX + 1];
|
|
};
|
|
|
|
struct componentname;
|
|
|
|
struct doc_tombstone *doc_tombstone_get(void);
|
|
void doc_tombstone_clear(struct doc_tombstone *ut, struct vnode **old_vpp);
|
|
void doc_tombstone_save(struct vnode *dvp, struct vnode *vp,
|
|
struct componentname *cnp, uint64_t doc_id,
|
|
ino64_t file_id);
|
|
bool doc_tombstone_should_ignore_name(const char *nameptr, int len);
|
|
bool doc_tombstone_should_save(struct doc_tombstone *ut, struct vnode *vp,
|
|
struct componentname *cnp);
|
|
|
|
#endif // defined(KERNEL_PRIVATE)
|
|
|
|
#endif // SYS_DOC_TOMBSTONE_H_
|