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/*
* This file and its contents are supplied under the terms of the
* Common Development and Distribution License ("CDDL"), version 1.0.
* You may only use this file in accordance with the terms of version
* 1.0 of the CDDL.
*
* A full copy of the text of the CDDL should have accompanied this
* source. A copy of the CDDL is also available via the Internet at
* http://www.illumos.org/license/CDDL.
*/
/*
* Copyright (c) 2014 Joyent, Inc. All rights reserved.
*/
/*
* Header file to support for the inotify facility. Note that this facility
* is designed to be binary compatible with the Linux inotify facility; values
* for constants here should therefore exactly match those found in Linux, and
* this facility shouldn't be extended independently of Linux.
*/
#ifndef _SYS_INOTIFY_H
#define _SYS_INOTIFY_H
#include <sys/types.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* Events that can be explicitly requested on any inotify watch.
*/
#define IN_ACCESS 0x00000001
#define IN_MODIFY 0x00000002
#define IN_ATTRIB 0x00000004
#define IN_CLOSE_WRITE 0x00000008
#define IN_CLOSE_NOWRITE 0x00000010
#define IN_OPEN 0x00000020
#define IN_MOVED_FROM 0x00000040
#define IN_MOVED_TO 0x00000080
#define IN_CREATE 0x00000100
#define IN_DELETE 0x00000200
#define IN_DELETE_SELF 0x00000400
#define IN_MOVE_SELF 0x00000800
/*
* Events that can be sent to an inotify watch -- requested or not.
*/
#define IN_UNMOUNT 0x00002000
#define IN_Q_OVERFLOW 0x00004000
#define IN_IGNORED 0x00008000
/*
* Flags that can modify an inotify event.
*/
#define IN_ONLYDIR 0x01000000
#define IN_DONT_FOLLOW 0x02000000
#define IN_EXCL_UNLINK 0x04000000
#define IN_MASK_ADD 0x20000000
#define IN_ISDIR 0x40000000
#define IN_ONESHOT 0x80000000
/*
* Helpful constants.
*/
#define IN_CLOSE (IN_CLOSE_WRITE | IN_CLOSE_NOWRITE)
#define IN_MOVE (IN_MOVED_FROM | IN_MOVED_TO)
#define IN_ALL_EVENTS \
(IN_ACCESS | IN_MODIFY | IN_ATTRIB | IN_CLOSE_WRITE | \
IN_CLOSE_NOWRITE | IN_OPEN | IN_MOVED_FROM | IN_MOVED_TO | \
IN_DELETE | IN_CREATE | IN_DELETE_SELF | IN_MOVE_SELF)
#define IN_CHILD_EVENTS \
(IN_ACCESS | IN_MODIFY | IN_ATTRIB | IN_CLOSE_WRITE | \
IN_CLOSE_NOWRITE | IN_MODIFY | IN_OPEN)
/*
* To assure binary compatibility with Linux, these values are fixed at their
* Linux equivalents, not their native ones.
*/
#define IN_CLOEXEC 02000000 /* LX_O_CLOEXEC */
#define IN_NONBLOCK 04000 /* LX_O_NONBLOCK */
struct inotify_event {
int32_t wd; /* watch descriptor */
uint32_t mask; /* mask of events */
uint32_t cookie; /* event association cookie, if any */
uint32_t len; /* size of name field */
char name[]; /* optional NUL-terminated name */
};
/*
* These ioctl values are specific to the native implementation; applications
* shouldn't be using them directly, and they should therefore be safe to
* change without breaking apps.
*/
#define INOTIFYIOC (('i' << 24) | ('n' << 16) | ('y' << 8))
#define INOTIFYIOC_ADD_WATCH (INOTIFYIOC | 1) /* add watch */
#define INOTIFYIOC_RM_WATCH (INOTIFYIOC | 2) /* remove watch */
#define INOTIFYIOC_ADD_CHILD (INOTIFYIOC | 3) /* add child watch */
#define INOTIFYIOC_ACTIVATE (INOTIFYIOC | 4) /* activate watch */
#ifndef _LP64
#ifndef _LITTLE_ENDIAN
#define INOTIFY_PTR(type, name) uint32_t name##pad; type *name
#else
#define INOTIFY_PTR(type, name) type *name; uint32_t name##pad
#endif
#else
#define INOTIFY_PTR(type, name) type *name
#endif
typedef struct inotify_addwatch {
int inaw_fd; /* open fd for object */
uint32_t inaw_mask; /* desired mask */
} inotify_addwatch_t;
typedef struct inotify_addchild {
INOTIFY_PTR(char, inac_name); /* pointer to name */
int inac_fd; /* open fd for parent */
} inotify_addchild_t;
#ifndef _KERNEL
extern int inotify_init(void);
extern int inotify_init1(int);
extern int inotify_add_watch(int, const char *, uint32_t);
extern int inotify_rm_watch(int, int);
#else
#define IN_UNMASKABLE \
(IN_UNMOUNT | IN_Q_OVERFLOW | IN_IGNORED | IN_ISDIR)
#define IN_MODIFIERS \
(IN_EXCL_UNLINK | IN_ONESHOT)
#define IN_FLAGS \
(IN_ONLYDIR | IN_DONT_FOLLOW | IN_MASK_ADD)
#define IN_REMOVAL (1ULL << 32)
#define INOTIFYMNRN_INOTIFY 0
#define INOTIFYMNRN_CLONE 1
#endif /* _KERNEL */
#ifdef __cplusplus
}
#endif
#endif /* _SYS_INOTIFY_H */
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