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-rw-r--r--include/uapi/linux/inotify.h74
1 files changed, 74 insertions, 0 deletions
diff --git a/include/uapi/linux/inotify.h b/include/uapi/linux/inotify.h
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1/*
2 * Inode based directory notification for Linux
3 *
4 * Copyright (C) 2005 John McCutchan
5 */
6
7#ifndef _UAPI_LINUX_INOTIFY_H
8#define _UAPI_LINUX_INOTIFY_H
9
10/* For O_CLOEXEC and O_NONBLOCK */
11#include <linux/fcntl.h>
12#include <linux/types.h>
13
14/*
15 * struct inotify_event - structure read from the inotify device for each event
16 *
17 * When you are watching a directory, you will receive the filename for events
18 * such as IN_CREATE, IN_DELETE, IN_OPEN, IN_CLOSE, ..., relative to the wd.
19 */
20struct inotify_event {
21 __s32 wd; /* watch descriptor */
22 __u32 mask; /* watch mask */
23 __u32 cookie; /* cookie to synchronize two events */
24 __u32 len; /* length (including nulls) of name */
25 char name[0]; /* stub for possible name */
26};
27
28/* the following are legal, implemented events that user-space can watch for */
29#define IN_ACCESS 0x00000001 /* File was accessed */
30#define IN_MODIFY 0x00000002 /* File was modified */
31#define IN_ATTRIB 0x00000004 /* Metadata changed */
32#define IN_CLOSE_WRITE 0x00000008 /* Writtable file was closed */
33#define IN_CLOSE_NOWRITE 0x00000010 /* Unwrittable file closed */
34#define IN_OPEN 0x00000020 /* File was opened */
35#define IN_MOVED_FROM 0x00000040 /* File was moved from X */
36#define IN_MOVED_TO 0x00000080 /* File was moved to Y */
37#define IN_CREATE 0x00000100 /* Subfile was created */
38#define IN_DELETE 0x00000200 /* Subfile was deleted */
39#define IN_DELETE_SELF 0x00000400 /* Self was deleted */
40#define IN_MOVE_SELF 0x00000800 /* Self was moved */
41
42/* the following are legal events. they are sent as needed to any watch */
43#define IN_UNMOUNT 0x00002000 /* Backing fs was unmounted */
44#define IN_Q_OVERFLOW 0x00004000 /* Event queued overflowed */
45#define IN_IGNORED 0x00008000 /* File was ignored */
46
47/* helper events */
48#define IN_CLOSE (IN_CLOSE_WRITE | IN_CLOSE_NOWRITE) /* close */
49#define IN_MOVE (IN_MOVED_FROM | IN_MOVED_TO) /* moves */
50
51/* special flags */
52#define IN_ONLYDIR 0x01000000 /* only watch the path if it is a directory */
53#define IN_DONT_FOLLOW 0x02000000 /* don't follow a sym link */
54#define IN_EXCL_UNLINK 0x04000000 /* exclude events on unlinked objects */
55#define IN_MASK_ADD 0x20000000 /* add to the mask of an already existing watch */
56#define IN_ISDIR 0x40000000 /* event occurred against dir */
57#define IN_ONESHOT 0x80000000 /* only send event once */
58
59/*
60 * All of the events - we build the list by hand so that we can add flags in
61 * the future and not break backward compatibility. Apps will get only the
62 * events that they originally wanted. Be sure to add new events here!
63 */
64#define IN_ALL_EVENTS (IN_ACCESS | IN_MODIFY | IN_ATTRIB | IN_CLOSE_WRITE | \
65 IN_CLOSE_NOWRITE | IN_OPEN | IN_MOVED_FROM | \
66 IN_MOVED_TO | IN_DELETE | IN_CREATE | IN_DELETE_SELF | \
67 IN_MOVE_SELF)
68
69/* Flags for sys_inotify_init1. */
70#define IN_CLOEXEC O_CLOEXEC
71#define IN_NONBLOCK O_NONBLOCK
72
73
74#endif /* _UAPI_LINUX_INOTIFY_H */