2 * This header is used if <sys/inotify.h> cannot be found.
4 * Inode based directory notification for Linux
6 * Copyright (C) 2005 John McCutchan
9 #ifndef _LINUX_INOTIFY_H
10 #define _LINUX_INOTIFY_H
13 #include <sys/syscall.h>
15 #include <asm/unistd.h>
18 * struct inotify_event - structure read from the inotify device for each event
20 * When you are watching a directory, you will receive the filename for events
21 * such as IN_CREATE, IN_DELETE, IN_OPEN, IN_CLOSE, ..., relative to the wd.
23 struct inotify_event {
24 int wd; /* watch descriptor */
25 uint32_t mask; /* watch mask */
26 uint32_t cookie; /* cookie to synchronize two events */
27 uint32_t len; /* length (including nulls) of name */
28 char name __flexarr; /* stub for possible name */
31 /* the following are legal, implemented events that user-space can watch for */
32 #define IN_ACCESS 0x00000001 /* File was accessed */
33 #define IN_MODIFY 0x00000002 /* File was modified */
34 #define IN_ATTRIB 0x00000004 /* Metadata changed */
35 #define IN_CLOSE_WRITE 0x00000008 /* Writtable file was closed */
36 #define IN_CLOSE_NOWRITE 0x00000010 /* Unwrittable file closed */
37 #define IN_OPEN 0x00000020 /* File was opened */
38 #define IN_MOVED_FROM 0x00000040 /* File was moved from X */
39 #define IN_MOVED_TO 0x00000080 /* File was moved to Y */
40 #define IN_CREATE 0x00000100 /* Subfile was created */
41 #define IN_DELETE 0x00000200 /* Subfile was deleted */
42 #define IN_DELETE_SELF 0x00000400 /* Self was deleted */
43 #define IN_MOVE_SELF 0x00000800 /* Self was moved */
45 /* the following are legal events. they are sent as needed to any watch */
46 #define IN_UNMOUNT 0x00002000 /* Backing fs was unmounted */
47 #define IN_Q_OVERFLOW 0x00004000 /* Event queued overflowed */
48 #define IN_IGNORED 0x00008000 /* File was ignored */
51 #define IN_CLOSE (IN_CLOSE_WRITE | IN_CLOSE_NOWRITE) /* close */
52 #define IN_MOVE (IN_MOVED_FROM | IN_MOVED_TO) /* moves */
55 #define IN_ONLYDIR 0x01000000 /* only watch the path if it is a directory */
56 #define IN_DONT_FOLLOW 0x02000000 /* don't follow a sym link */
57 #define IN_MASK_ADD 0x20000000 /* add to the mask of an already existing watch */
58 #define IN_ISDIR 0x40000000 /* event occurred against dir */
59 #define IN_ONESHOT 0x80000000 /* only send event once */
62 * All of the events - we build the list by hand so that we can add flags in
63 * the future and not break backward compatibility. Apps will get only the
64 * events that they originally wanted. Be sure to add new events here!
66 #define IN_ALL_EVENTS (IN_ACCESS | IN_MODIFY | IN_ATTRIB | IN_CLOSE_WRITE | \
67 IN_CLOSE_NOWRITE | IN_OPEN | IN_MOVED_FROM | \
68 IN_MOVED_TO | IN_DELETE | IN_CREATE | IN_DELETE_SELF | \
72 #if defined (__alpha__)
73 # define __NR_inotify_init 444
74 # define __NR_inotify_add_watch 445
75 # define __NR_inotify_rm_watch 446
77 #elif defined (__arm__)
78 # define __NR_inotify_init (__NR_SYSCALL_BASE+316)
79 # define __NR_inotify_add_watch (__NR_SYSCALL_BASE+317)
80 # define __NR_inotify_rm_watch (__NR_SYSCALL_BASE+318)
82 #elif defined (__frv__)
83 # define __NR_inotify_init 291
84 # define __NR_inotify_add_watch 292
85 # define __NR_inotify_rm_watch 293
87 #elif defined(__i386__)
88 # define __NR_inotify_init 291
89 # define __NR_inotify_add_watch 292
90 # define __NR_inotify_rm_watch 293
92 #elif defined (__ia64__)
93 # define __NR_inotify_init 1277
94 # define __NR_inotify_add_watch 1278
95 # define __NR_inotify_rm_watch 1279
97 #elif defined (__mips__)
98 # if _MIPS_SIM == _MIPS_SIM_ABI32
99 # define __NR_inotify_init (__NR_Linux + 284)
100 # define __NR_inotify_add_watch (__NR_Linux + 285)
101 # define __NR_inotify_rm_watch (__NR_Linux + 286)
103 # if _MIPS_SIM == _MIPS_SIM_ABI64
104 # define __NR_inotify_init (__NR_Linux + 243)
105 # define __NR_inotify_add_watch (__NR_Linux + 243)
106 # define __NR_inotify_rm_watch (__NR_Linux + 243)
108 # if _MIPS_SIM == _MIPS_SIM_NABI32
109 # define __NR_inotify_init (__NR_Linux + 247)
110 # define __NR_inotify_add_watch (__NR_Linux + 248)
111 # define __NR_inotify_rm_watch (__NR_Linux + 249)
114 #elif defined(__parisc__)
115 # define __NR_inotify_init (__NR_Linux + 269)
116 # define __NR_inotify_add_watch (__NR_Linux + 270)
117 # define __NR_inotify_rm_watch (__NR_Linux + 271)
119 #elif defined(__powerpc__) || defined(__powerpc64__)
120 # define __NR_inotify_init 275
121 # define __NR_inotify_add_watch 276
122 # define __NR_inotify_rm_watch 277
124 #elif defined (__s390__)
125 # define __NR_inotify_init 284
126 # define __NR_inotify_add_watch 285
127 # define __NR_inotify_rm_watch 286
129 #elif defined (__sh__)
130 # define __NR_inotify_init 290
131 # define __NR_inotify_add_watch 291
132 # define __NR_inotify_rm_watch 292
134 #elif defined (__sh64__)
135 # define __NR_inotify_init 318
136 # define __NR_inotify_add_watch 319
137 # define __NR_inotify_rm_watch 320
139 #elif defined (__sparc__) || defined (__sparc64__)
140 # define __NR_inotify_init 151
141 # define __NR_inotify_add_watch 152
142 # define __NR_inotify_rm_watch 156
144 #elif defined(__x86_64__)
145 # define __NR_inotify_init 253
146 # define __NR_inotify_add_watch 254
147 # define __NR_inotify_rm_watch 255
150 # error "Unsupported architecture!"
154 #ifndef __NR_inotify_init
155 # error "Unsupported architecture!"
157 #ifndef __NR_inotify_add_watch
158 # error "Unsupported architecture!"
160 #ifndef __NR_inotify_rm_watch
161 # error "Unsupported architecture!"
165 static inline int inotify_init (void)
167 return syscall (__NR_inotify_init);
170 static inline int inotify_add_watch (int fd, const char *name, uint32_t mask)
172 return syscall (__NR_inotify_add_watch, fd, name, mask);
175 static inline int inotify_rm_watch (int fd, uint32_t wd)
177 return syscall (__NR_inotify_rm_watch, fd, wd);
181 #endif /* _LINUX_INOTIFY_H */