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001: /* Copyright (C) 2005, 2006, 2008, 2009, 2010 Free Software Foundation, Inc.
002:    This file is part of the GNU C Library.
003: 
004:    The GNU C Library is free software; you can redistribute it and/or
005:    modify it under the terms of the GNU Lesser General Public
006:    License as published by the Free Software Foundation; either
007:    version 2.1 of the License, or (at your option) any later version.
008: 
009:    The GNU C Library is distributed in the hope that it will be useful,
010:    but WITHOUT ANY WARRANTY; without even the implied warranty of
011:    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
012:    Lesser General Public License for more details.
013: 
014:    You should have received a copy of the GNU Lesser General Public
015:    License along with the GNU C Library; if not, write to the Free
016:    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
017:    02111-1307 USA.  */
018: 
019: #ifndef _SYS_INOTIFY_H
020: #define _SYS_INOTIFY_H  1
021: 
022: #include <stdint.h>
023: 
024: 
025: /* Flags for the parameter of inotify_init1.  */
026: enum
027:   {
028:     IN_CLOEXEC = 02000000,
029: #define IN_CLOEXEC IN_CLOEXEC
030:     IN_NONBLOCK = 04000
031: #define IN_NONBLOCK IN_NONBLOCK
032:   };
033: 
034: 
035: /* Structure describing an inotify event.  */
036: struct inotify_event
037: {
038:   int wd;               /* Watch descriptor.  */
039:   uint32_t mask;        /* Watch mask.  */
040:   uint32_t cookie;      /* Cookie to synchronize two events.  */
041:   uint32_t len;         /* Length (including NULs) of name.  */
042:   char name __flexarr;  /* Name.  */
043: };
044: 
045: 
046: /* Supported events suitable for MASK parameter of INOTIFY_ADD_WATCH.  */
047: #define IN_ACCESS        0x00000001     /* File was accessed.  */
048: #define IN_MODIFY        0x00000002     /* File was modified.  */
049: #define IN_ATTRIB        0x00000004     /* Metadata changed.  */
050: #define IN_CLOSE_WRITE   0x00000008     /* Writtable file was closed.  */
051: #define IN_CLOSE_NOWRITE 0x00000010     /* Unwrittable file closed.  */
052: #define IN_CLOSE         (IN_CLOSE_WRITE | IN_CLOSE_NOWRITE) /* Close.  */
053: #define IN_OPEN          0x00000020     /* File was opened.  */
054: #define IN_MOVED_FROM    0x00000040     /* File was moved from X.  */
055: #define IN_MOVED_TO      0x00000080     /* File was moved to Y.  */
056: #define IN_MOVE          (IN_MOVED_FROM | IN_MOVED_TO) /* Moves.  */
057: #define IN_CREATE        0x00000100     /* Subfile was created.  */
058: #define IN_DELETE        0x00000200     /* Subfile was deleted.  */
059: #define IN_DELETE_SELF   0x00000400     /* Self was deleted.  */
060: #define IN_MOVE_SELF     0x00000800     /* Self was moved.  */
061: 
062: /* Events sent by the kernel.  */
063: #define IN_UNMOUNT       0x00002000     /* Backing fs was unmounted.  */
064: #define IN_Q_OVERFLOW    0x00004000     /* Event queued overflowed.  */
065: #define IN_IGNORED       0x00008000     /* File was ignored.  */
066: 
067: /* Helper events.  */
068: #define IN_CLOSE         (IN_CLOSE_WRITE | IN_CLOSE_NOWRITE)    /* Close.  */
069: #define IN_MOVE          (IN_MOVED_FROM | IN_MOVED_TO)          /* Moves.  */
070: 
071: /* Special flags.  */
072: #define IN_ONLYDIR       0x01000000     /* Only watch the path if it is a
073:                                            directory.  */
074: #define IN_DONT_FOLLOW   0x02000000     /* Do not follow a sym link.  */
075: #define IN_EXCL_UNLINK   0x04000000     /* Exclude events on unlinked
076:                                            objects.  */
077: #define IN_MASK_ADD      0x20000000     /* Add to the mask of an already
078:                                            existing watch.  */
079: #define IN_ISDIR         0x40000000     /* Event occurred against dir.  */
080: #define IN_ONESHOT       0x80000000     /* Only send event once.  */
081: 
082: /* All events which a program can wait on.  */
083: #define IN_ALL_EVENTS    (IN_ACCESS | IN_MODIFY | IN_ATTRIB | IN_CLOSE_WRITE  \
084:                           | IN_CLOSE_NOWRITE | IN_OPEN | IN_MOVED_FROM        \
085:                           | IN_MOVED_TO | IN_CREATE | IN_DELETE               \
086:                           | IN_DELETE_SELF | IN_MOVE_SELF)
087: 
088: 
089: __BEGIN_DECLS
090: 
091: /* Create and initialize inotify instance.  */
092: extern int inotify_init (void) __THROW;
093: 
094: /* Create and initialize inotify instance.  */
095: extern int inotify_init1 (int __flags) __THROW;
096: 
097: /* Add watch of object NAME to inotify instance FD.  Notify about
098:    events specified by MASK.  */
099: extern int inotify_add_watch (int __fd, const char *__name, uint32_t __mask)
100:   __THROW;
101: 
102: /* Remove the watch specified by WD from the inotify instance FD.  */
103: extern int inotify_rm_watch (int __fd, int __wd) __THROW;
104: 
105: __END_DECLS
106: 
107: #endif /* sys/inotify.h */
108: 

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