X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/91447636331957f3d9b5ca5b508f07c526b0074d..94ff46dc2849db4d43eaaf144872decc522aafb4:/bsd/sys/fsevents.h?ds=sidebyside diff --git a/bsd/sys/fsevents.h b/bsd/sys/fsevents.h index 91b9f5958..4ee5a460a 100644 --- a/bsd/sys/fsevents.h +++ b/bsd/sys/fsevents.h @@ -1,3 +1,30 @@ +/* + * Copyright (c) 2000-2014 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 FSEVENT_H #define FSEVENT_H 1 @@ -12,12 +39,35 @@ #define FSE_FINDER_INFO_CHANGED 6 #define FSE_CREATE_DIR 7 #define FSE_CHOWN 8 - -#define FSE_MAX_EVENTS 9 +#define FSE_XATTR_MODIFIED 9 +#define FSE_XATTR_REMOVED 10 +#define FSE_DOCID_CREATED 11 +#define FSE_DOCID_CHANGED 12 +#define FSE_UNMOUNT_PENDING 13 // iOS-only: client must respond via FSEVENTS_UNMOUNT_PENDING_ACK +#define FSE_CLONE 14 + +#define FSE_MAX_EVENTS 15 #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 @@ -37,52 +87,77 @@ #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 // kernel internal only +#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 (1U << 31) // notification is for a hard-link +#define FSE_MODE_LAST_HLINK (1U << 30) // link count == 0 on a hard-link delete +#define FSE_REMOTE_DIR_EVENT (1U << 29) // this is a remotely generated directory-level granularity event +#define FSE_TRUNCATED_PATH (1U << 28) // the path for this item had to be truncated +#define FSE_MODE_CLONE (1U << 27) // notification is for a clone // ioctl's on /dev/fsevents typedef struct fsevent_clone_args { - int8_t *event_list; - int32_t num_events; - int32_t event_queue_depth; - int32_t *fd; + int8_t *event_list; + int32_t num_events; + int32_t event_queue_depth; + int32_t *fd; } fsevent_clone_args; -#define FSEVENTS_CLONE _IOW('s', 1, fsevent_clone_args) +#define FSEVENTS_CLONE _IOW('s', 1, fsevent_clone_args) // ioctl's on the cloned fd +#pragma pack(push, 4) typedef struct fsevent_dev_filter_args { - uint32_t num_devices; - dev_t *devices; + uint32_t num_devices; + dev_t *devices; } fsevent_dev_filter_args; +#pragma pack(pop) -#define FSEVENTS_DEVICE_FILTER _IOW('s', 100, fsevent_dev_filter_args) +#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) +#define FSEVENTS_UNMOUNT_PENDING_ACK _IOW('s', 104, dev_t) -#ifdef KERNEL +#ifdef BSD_KERNEL_PRIVATE -int need_fsevent(int type, vnode_t vp); -int add_fsevent(int type, vfs_context_t, ...); -void fsevent_unmount(struct mount *mp); +void fsevents_init(void); +void fsevent_unmount(struct mount *mp, vfs_context_t ctx); +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 { - dev_t dev; - ino_t ino; - int32_t mode; // note: this is not a mode_t (it's 32-bits, not 16) - uid_t uid; - gid_t gid; + 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 /* BSD_KERNEL_PRIVATE */ + +#ifdef KERNEL_PRIVATE + +int need_fsevent(int type, vnode_t vp); +int add_fsevent(int type, vfs_context_t, ...); + +#endif /* KERNEL_PRIVATE */ #endif /* FSEVENT_H */