1 /* Copyright (C) 2005, 2006, 2008, 2009 Free Software Foundation, Inc. 2 This file is part of the GNU C Library. 3 4 The GNU C Library is free software; you can redistribute it and/or 5 modify it under the terms of the GNU Lesser General Public 6 License as published by the Free Software Foundation; either 7 version 2.1 of the License, or (at your option) any later version. 8 9 The GNU C Library is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 Lesser General Public License for more details. 13 14 You should have received a copy of the GNU Lesser General Public 15 License along with the GNU C Library; if not, write to the Free 16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 17 02111-1307 USA. */ 18 19 #ifndef _SYS_INOTIFY_H 20 #define _SYS_INOTIFY_H 1 21 22 #include <stdint.h> 23 24 25 /* Flags for the parameter of inotify_init1. */ 26 enum 27 { 28 IN_CLOEXEC = 02000000, 29 #define IN_CLOEXEC IN_CLOEXEC 30 IN_NONBLOCK = 04000 31 #define IN_NONBLOCK IN_NONBLOCK 32 }; 33 34 35 /* Structure describing an inotify event. */ 36 struct inotify_event 37 { 38 int wd; /* Watch descriptor. */ 39 uint32_t mask; /* Watch mask. */ 40 uint32_t cookie; /* Cookie to synchronize two events. */ 41 uint32_t len; /* Length (including NULs) of name. */ 42 char name __flexarr; /* Name. */ 43 }; 44 45 46 /* Supported events suitable for MASK parameter of INOTIFY_ADD_WATCH. */ 47 #define IN_ACCESS 0x00000001 /* File was accessed. */ 48 #define IN_MODIFY 0x00000002 /* File was modified. */ 49 #define IN_ATTRIB 0x00000004 /* Metadata changed. */ 50 #define IN_CLOSE_WRITE 0x00000008 /* Writtable file was closed. */ 51 #define IN_CLOSE_NOWRITE 0x00000010 /* Unwrittable file closed. */ 52 #define IN_CLOSE (IN_CLOSE_WRITE | IN_CLOSE_NOWRITE) /* Close. */ 53 #define IN_OPEN 0x00000020 /* File was opened. */ 54 #define IN_MOVED_FROM 0x00000040 /* File was moved from X. */ 55 #define IN_MOVED_TO 0x00000080 /* File was moved to Y. */ 56 #define IN_MOVE (IN_MOVED_FROM | IN_MOVED_TO) /* Moves. */ 57 #define IN_CREATE 0x00000100 /* Subfile was created. */ 58 #define IN_DELETE 0x00000200 /* Subfile was deleted. */ 59 #define IN_DELETE_SELF 0x00000400 /* Self was deleted. */ 60 #define IN_MOVE_SELF 0x00000800 /* Self was moved. */ 61 62 /* Events sent by the kernel. */ 63 #define IN_UNMOUNT 0x00002000 /* Backing fs was unmounted. */ 64 #define IN_Q_OVERFLOW 0x00004000 /* Event queued overflowed. */ 65 #define IN_IGNORED 0x00008000 /* File was ignored. */ 66 67 /* Helper events. */ 68 #define IN_CLOSE (IN_CLOSE_WRITE | IN_CLOSE_NOWRITE) /* Close. */ 69 #define IN_MOVE (IN_MOVED_FROM | IN_MOVED_TO) /* Moves. */ 70 71 /* Special flags. */ 72 #define IN_ONLYDIR 0x01000000 /* Only watch the path if it is a 73 directory. */ 74 #define IN_DONT_FOLLOW 0x02000000 /* Do not follow a sym link. */ 75 #define IN_MASK_ADD 0x20000000 /* Add to the mask of an already 76 existing watch. */ 77 #define IN_ISDIR 0x40000000 /* Event occurred against dir. */ 78 #define IN_ONESHOT 0x80000000 /* Only send event once. */ 79 80 /* All events which a program can wait on. */ 81 #define IN_ALL_EVENTS (IN_ACCESS | IN_MODIFY | IN_ATTRIB | IN_CLOSE_WRITE \ 82 | IN_CLOSE_NOWRITE | IN_OPEN | IN_MOVED_FROM \ 83 | IN_MOVED_TO | IN_CREATE | IN_DELETE \ 84 | IN_DELETE_SELF | IN_MOVE_SELF) 85 86 87 __BEGIN_DECLS 88 89 /* Create and initialize inotify instance. */ 90 extern int inotify_init (void) __THROW; 91 92 /* Create and initialize inotify instance. */ 93 extern int inotify_init1 (int __flags) __THROW; 94 95 /* Add watch of object NAME to inotify instance FD. Notify about 96 events specified by MASK. */ 97 extern int inotify_add_watch (int __fd, const char *__name, uint32_t __mask) 98 __THROW; 99 100 /* Remove the watch specified by WD from the inotify instance FD. */ 101 extern int inotify_rm_watch (int __fd, int __wd) __THROW; 102 103 __END_DECLS 104 105 #endif /* sys/inotify.h */ 106
