osd-contiki/core/net/rime/neighbor.h

88 lines
2.9 KiB
C

/**
* \addtogroup rime
* @{
*/
/**
* \defgroup rimeneighbor Rime neighbor management
* @{
*
* The neighbor module manages the neighbor table.
*/
/*
* Copyright (c) 2006, Swedish Institute of Computer Science.
* All rights reserved.
*
* 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.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE 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 INSTITUTE 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.
*
* This file is part of the Contiki operating system.
*
* $Id: neighbor.h,v 1.12 2009/11/08 19:40:17 adamdunkels Exp $
*/
/**
* \file
* Header file for the Contiki radio neighborhood management
* \author
* Adam Dunkels <adam@sics.se>
*/
#ifndef __NEIGHBOR_H__
#define __NEIGHBOR_H__
#include "net/rime/rimeaddr.h"
#define NEIGHBOR_ETX_SCALE 16
#define NEIGHBOR_NUM_ETXS 8
struct neighbor {
struct neighbor *next;
uint16_t time;
rimeaddr_t addr;
uint16_t rtmetric;
uint8_t etxptr;
uint8_t etxs[NEIGHBOR_NUM_ETXS];
};
void neighbor_init(void);
/*void neighbor_periodic(int max_time);*/
void neighbor_add(const rimeaddr_t *addr, uint8_t rtmetric, uint8_t etx);
void neighbor_update(struct neighbor *n, uint8_t rtmetric);
void neighbor_update_etx(struct neighbor *n, uint8_t etx);
void neighbor_timedout_etx(struct neighbor *n, uint8_t etx);
void neighbor_remove(const rimeaddr_t *addr);
struct neighbor *neighbor_find(const rimeaddr_t *addr);
struct neighbor *neighbor_best(void);
void neighbor_set_lifetime(int seconds);
uint8_t neighbor_etx(struct neighbor *n);
int neighbor_num(void);
struct neighbor *neighbor_get(int num);
#endif /* __NEIGHBOR_H__ */
/** @} */
/** @} */