/*
 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
 * Copyright (c) 2021, sin-ack <sin-ack@protonmail.com>
 *
 * SPDX-License-Identifier: BSD-2-Clause
 */

#pragma once

#include <sys/cdefs.h>
#include <sys/types.h>

__BEGIN_DECLS

#define F_DUPFD 0
#define F_GETFD 1
#define F_SETFD 2
#define F_GETFL 3
#define F_SETFL 4
#define F_ISTTY 5
#define F_GETLK 6
#define F_SETLK 7
#define F_SETLKW 8

#define FD_CLOEXEC 1

#define O_RDONLY (1 << 0)
#define O_WRONLY (1 << 1)
#define O_RDWR (O_RDONLY | O_WRONLY)
#define O_ACCMODE (O_RDONLY | O_WRONLY)
#define O_EXEC (1 << 2)
#define O_CREAT (1 << 3)
#define O_EXCL (1 << 4)
#define O_NOCTTY (1 << 5)
#define O_TRUNC (1 << 6)
#define O_APPEND (1 << 7)
#define O_NONBLOCK (1 << 8)
#define O_DIRECTORY (1 << 9)
#define O_NOFOLLOW (1 << 10)
#define O_CLOEXEC (1 << 11)
#define O_DIRECT (1 << 12)

int creat(const char* path, mode_t);
int open(const char* path, int options, ...);
#define AT_FDCWD -100
#define AT_SYMLINK_NOFOLLOW 0x100
int openat(int dirfd, const char* path, int options, ...);

int fcntl(int fd, int cmd, ...);
int create_inode_watcher(unsigned flags);
int inode_watcher_add_watch(int fd, const char* path, size_t path_length, unsigned event_mask);
int inode_watcher_remove_watch(int fd, int wd);

#define F_RDLCK ((short)0)
#define F_WRLCK ((short)1)
#define F_UNLCK ((short)2)

struct flock {
    short l_type;
    short l_whence;
    off_t l_start;
    off_t l_len;
    pid_t l_pid;
};

__END_DECLS