/*      $NetBSD: linux_inotify.h,v 1.1 2023/08/19 17:57:54 christos Exp $       */

/*-
* Copyright (c) 2023 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Theodore Preduta.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _LINUX_INOTIFY_H
#define _LINUX_INOTIFY_H

#include <sys/types.h>
/* for LINUX_O_CLOEXEC, LINUX_O_NONBLOCK */
#include <compat/linux/common/linux_fcntl.h>

#define LINUX_IN_CLOEXEC        LINUX_O_CLOEXEC
#define LINUX_IN_NONBLOCK       LINUX_O_NONBLOCK

#define LINUX_IN_ALL_FLAGS      (LINUX_IN_CLOEXEC|LINUX_IN_NONBLOCK)

#define LINUX_IN_ACCESS         0x00000001
#define LINUX_IN_MODIFY         0x00000002
#define LINUX_IN_ATTRIB         0x00000004
#define LINUX_IN_CLOSE_WRITE    0x00000008
#define LINUX_IN_CLOSE_NOWRITE  0x00000010
#define LINUX_IN_OPEN           0x00000020
#define LINUX_IN_MOVED_FROM     0x00000040
#define LINUX_IN_MOVED_TO       0x00000080
#define LINUX_IN_CREATE         0x00000100
#define LINUX_IN_DELETE         0x00000200
#define LINUX_IN_DELETE_SELF    0x00000400
#define LINUX_IN_MOVE_SELF      0x00000800
#define LINUX_IN_UNMOUNT        0x00002000
#define LINUX_IN_Q_OVERFLOW     0x00004000
#define LINUX_IN_IGNORED        0x00008000

#define LINUX_IN_ONLYDIR        0x01000000
#define LINUX_IN_DONT_FOLLOW    0x02000000
#define LINUX_IN_EXCL_UNLINK    0x04000000
#define LINUX_IN_MASK_CREATE    0x10000000
#define LINUX_IN_MASK_ADD       0x20000000
#define LINUX_IN_ISDIR          0x40000000
#define LINUX_IN_ONESHOT        0x80000000

#define LINUX_IN_CLOSE          (LINUX_IN_CLOSE_WRITE|LINUX_IN_CLOSE_NOWRITE)

#define LINUX_IN_ADD_KNOWN      (LINUX_IN_ACCESS|LINUX_IN_ATTRIB \
                               |LINUX_IN_CLOSE_WRITE|LINUX_IN_CLOSE_NOWRITE \
                               |LINUX_IN_CREATE|LINUX_IN_DELETE \
                               |LINUX_IN_DELETE_SELF|LINUX_IN_MODIFY \
                               |LINUX_IN_MOVE_SELF|LINUX_IN_MOVED_FROM \
                               |LINUX_IN_MOVED_TO|LINUX_IN_OPEN \
                               |LINUX_IN_DONT_FOLLOW|LINUX_IN_ONLYDIR \
                               |LINUX_IN_MASK_CREATE|LINUX_IN_MASK_ADD \
                               |LINUX_IN_ISDIR|LINUX_IN_ONESHOT)

struct linux_inotify_event {
       int32_t         wd;
       uint32_t        mask;
       uint32_t        cookie;
       uint32_t        len;
       char            name[];
};

#ifdef _KERNEL
int linux_inotify_init(void);
int linux_inotify_fini(void);
#endif

#endif  /* !_LINUX_INOTIFY_H */