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/*
* include/linux/fcblist.h ( File event callbacks handling )
* Copyright (C) 2001,...,2002 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_FCBLIST_H
#define __LINUX_FCBLIST_H
#include <linux/config.h>
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/fs.h>
#include <linux/file.h>
/* file callback notification events */
#define ION_IN 1
#define ION_OUT 2
#define ION_HUP 3
#define ION_ERR 4
#define FCB_LOCAL_SIZE 4
struct fcb_struct {
struct list_head llink;
void (*cbproc)(struct file *, void *, unsigned long *, long *);
void *data;
unsigned long local[FCB_LOCAL_SIZE];
};
extern long ion_band_table[];
extern long poll_band_table[];
void file_notify_event(struct file *filep, long *event);
int file_notify_addcb(struct file *filep,
void (*cbproc)(struct file *, void *, unsigned long *, long *),
void *data);
int file_notify_delcb(struct file *filep,
void (*cbproc)(struct file *, void *, unsigned long *, long *));
void file_notify_cleanup(struct file *filep);
static inline void file_notify_init(struct file *filep)
{
rwlock_init(&filep->f_cblock);
INIT_LIST_HEAD(&filep->f_cblist);
}
static inline void file_send_notify(struct file *filep, long ioevt, long plevt)
{
long event[] = { ioevt, plevt, -1 };
file_notify_event(filep, event);
}
#endif
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