Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
tree: 3106d758ec
Fetching contributors…

Cannot retrieve contributors at this time

172 lines (148 sloc) 6.176 kb
/*
* Copyright (c) 2000-2006 Apple Computer, 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 FSEVENT_H
#define FSEVENT_H 1
// Event types that you can ask to listen for
#define FSE_INVALID -1
#define FSE_CREATE_FILE 0
#define FSE_DELETE 1
#define FSE_STAT_CHANGED 2
#define FSE_RENAME 3
#define FSE_CONTENT_MODIFIED 4
#define FSE_EXCHANGE 5
#define FSE_FINDER_INFO_CHANGED 6
#define FSE_CREATE_DIR 7
#define FSE_CHOWN 8
#define FSE_XATTR_MODIFIED 9
#define FSE_XATTR_REMOVED 10
#define FSE_MAX_EVENTS 11
#define FSE_ALL_EVENTS 998
#define FSE_EVENTS_DROPPED 999
//
// These defines only apply if you've asked for extended
// type info. In that case the type field's low 12-bits
// contain the basic types defined above and the top 4
// bits contain flags that indicate if an event had other
// events combined with it or if it represents a directory
// that has dropped events below it.
//
#define FSE_TYPE_MASK 0x0fff
#define FSE_FLAG_MASK 0xf000
#define FSE_FLAG_SHIFT 12
#define FSE_GET_FLAGS(type) (((type) >> 12) & 0x000f)
#define FSE_COMBINED_EVENTS 0x0001
#define FSE_CONTAINS_DROPPED_EVENTS 0x0002
// Actions for each event type
#define FSE_IGNORE 0
#define FSE_REPORT 1
#define FSE_ASK 2 // Not implemented yet
// The types of each of the arguments for an event
// Each type is followed by the size and then the
// data. FSE_ARG_VNODE is just a path string
#define FSE_ARG_VNODE 0x0001 // next arg is a vnode pointer
#define FSE_ARG_STRING 0x0002 // next arg is length followed by string ptr
#define FSE_ARG_PATH 0x0003 // next arg is a full path
#define FSE_ARG_INT32 0x0004 // next arg is a 32-bit int
#define FSE_ARG_INT64 0x0005 // next arg is a 64-bit int
#define FSE_ARG_RAW 0x0006 // next arg is a length followed by a void ptr
#define FSE_ARG_INO 0x0007 // next arg is the inode number (ino_t)
#define FSE_ARG_UID 0x0008 // next arg is the file's uid (uid_t)
#define FSE_ARG_DEV 0x0009 // next arg is the file's dev_t
#define FSE_ARG_MODE 0x000a // next arg is the file's mode (as an int32, file type only)
#define FSE_ARG_GID 0x000b // next arg is the file's gid (gid_t)
#define FSE_ARG_FINFO 0x000c // next arg is a packed finfo (dev, ino, mode, uid, gid)
#define FSE_ARG_DONE 0xb33f // no more arguments
#define FSE_MAX_ARGS 12
//
// These are special bits that be set in the 32-bit mode
// field that /dev/fsevents provides.
//
#define FSE_MODE_HLINK (1 << 31) // notification is for a hard-link
#define FSE_MODE_LAST_HLINK (1 << 30) // link count == 0 on a hard-link delete
#define FSE_REMOTE_DIR_EVENT (1 << 29) // this is a remotely generated directory-level granularity event
#define FSE_TRUNCATED_PATH (1 << 28) // the path for this item had to be truncated
// ioctl's on /dev/fsevents
#if __LP64__
typedef struct fsevent_clone_args {
int8_t *event_list;
int32_t num_events;
int32_t event_queue_depth;
int32_t *fd;
} fsevent_clone_args;
#else
typedef struct fsevent_clone_args {
int8_t *event_list;
int32_t pad1;
int32_t num_events;
int32_t event_queue_depth;
int32_t *fd;
int32_t pad2;
} fsevent_clone_args;
#endif
#define FSEVENTS_CLONE _IOW('s', 1, fsevent_clone_args)
// ioctl's on the cloned fd
#if __LP64__
#pragma pack(push, 4)
typedef struct fsevent_dev_filter_args {
uint32_t num_devices;
dev_t *devices;
} fsevent_dev_filter_args;
#pragma pack(pop)
#else
typedef struct fsevent_dev_filter_args {
uint32_t num_devices;
dev_t *devices;
int32_t pad1;
} fsevent_dev_filter_args;
#endif
#define FSEVENTS_DEVICE_FILTER _IOW('s', 100, fsevent_dev_filter_args)
#define FSEVENTS_WANT_COMPACT_EVENTS _IO('s', 101)
#define FSEVENTS_WANT_EXTENDED_INFO _IO('s', 102)
#define FSEVENTS_GET_CURRENT_ID _IOR('s', 103, uint64_t)
#ifdef KERNEL
void fsevents_init(void);
int need_fsevent(int type, vnode_t vp);
int add_fsevent(int type, vfs_context_t, ...);
void fsevent_unmount(struct mount *mp);
struct vnode_attr;
void create_fsevent_from_kevent(vnode_t vp, uint32_t kevents, struct vnode_attr *vap);
// misc utility functions for fsevent info and pathbuffers...
typedef struct fse_info {
ino64_t ino;
dev_t dev;
int32_t mode; // note: this is not a mode_t (it's 32-bits, not 16)
uid_t uid;
gid_t gid;
uint64_t nlink; // only filled in if the vnode is marked as a hardlink
} fse_info;
int get_fse_info(struct vnode *vp, fse_info *fse, vfs_context_t ctx);
int vnode_get_fse_info_from_vap(vnode_t vp, fse_info *fse, struct vnode_attr *vap);
char *get_pathbuff(void);
void release_pathbuff(char *path);
#endif /* KERNEL */
#endif /* FSEVENT_H */
Jump to Line
Something went wrong with that request. Please try again.