/*
 *  include/linux/eventpoll.h ( Efficient event polling implementation )
 *  Copyright (C) 2001,...,2006	 Davide Libenzi
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  Davide Libenzi <davidel@xmailserver.org>
 *
 */

#ifndef _LINUX_EVENTPOLL_H
#define _LINUX_EVENTPOLL_H

#include <linux/fcntl.h>
#include <linux/types.h>

#define EPOLL_CLOEXEC O_CLOEXEC

#define EPOLL_CTL_ADD 1
#define EPOLL_CTL_DEL 2
#define EPOLL_CTL_MOD 3

#define EPOLLONESHOT (1 << 30)

#define EPOLLET (1 << 31)

#ifdef __x86_64__
#define EPOLL_PACKED __attribute__((packed))
#else
#define EPOLL_PACKED
#endif

struct epoll_event {
	__u32 events;
	__u64 data;
} EPOLL_PACKED;

#ifdef __KERNEL__

struct file;


#ifdef CONFIG_EPOLL

static inline void eventpoll_init_file(struct file *file)
{
	INIT_LIST_HEAD(&file->f_ep_links);
	INIT_LIST_HEAD(&file->f_tfile_llink);
}


void eventpoll_release_file(struct file *file);

static inline void eventpoll_release(struct file *file)
{

	if (likely(list_empty(&file->f_ep_links)))
		return;

	eventpoll_release_file(file);
}

#else

static inline void eventpoll_init_file(struct file *file) {}
static inline void eventpoll_release(struct file *file) {}

#endif

#endif 

#endif