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d821ba5e22
reset so that a new probing period can produce more up-to-date estimates. Added a congestion mechanism whereby a neighbor can be marked as being congested for a period of time, during which the ETX for the neighbor will be artificially inflated.
107 lines
4.1 KiB
C
107 lines
4.1 KiB
C
/**
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* \addtogroup rime
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* @{
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*/
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/**
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* \defgroup rimeneighbor Collect neighbor management
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* @{
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*
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* The neighbor module manages the neighbor table that is used by the
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* Collect module.
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*/
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/*
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* Copyright (c) 2006, Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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* $Id: collect-neighbor.h,v 1.6 2010/10/11 23:38:46 adamdunkels Exp $
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*/
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/**
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* \file
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* Header file for the Contiki radio neighborhood management
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* \author
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* Adam Dunkels <adam@sics.se>
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*/
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#ifndef __COLLECT_NEIGHBOR_H__
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#define __COLLECT_NEIGHBOR_H__
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#include "net/rime/rimeaddr.h"
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#include "net/rime/collect-link-estimate.h"
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#include "lib/list.h"
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struct collect_neighbor_list {
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LIST_STRUCT(list);
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struct ctimer periodic;
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};
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struct collect_neighbor {
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struct collect_neighbor *next;
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rimeaddr_t addr;
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uint16_t rtmetric;
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uint16_t age;
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uint16_t le_age;
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struct collect_link_estimate le;
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struct timer congested_timer;
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};
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void collect_neighbor_init(void);
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list_t collect_neighbor_list(struct collect_neighbor_list *neighbor_list);
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void collect_neighbor_list_new(struct collect_neighbor_list *neighbor_list);
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int collect_neighbor_list_add(struct collect_neighbor_list *neighbor_list,
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const rimeaddr_t *addr, uint16_t rtmetric);
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void collect_neighbor_list_remove(struct collect_neighbor_list *neighbor_list,
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const rimeaddr_t *addr);
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struct collect_neighbor *collect_neighbor_list_find(struct collect_neighbor_list *neighbor_list,
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const rimeaddr_t *addr);
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struct collect_neighbor *collect_neighbor_list_best(struct collect_neighbor_list *neighbor_list);
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int collect_neighbor_list_num(struct collect_neighbor_list *neighbor_list);
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struct collect_neighbor *collect_neighbor_list_get(struct collect_neighbor_list *neighbor_list, int num);
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void collect_neighbor_list_purge(struct collect_neighbor_list *neighbor_list);
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void collect_neighbor_update_rtmetric(struct collect_neighbor *n,
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uint16_t rtmetric);
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void collect_neighbor_tx(struct collect_neighbor *n, uint16_t num_tx);
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void collect_neighbor_rx(struct collect_neighbor *n);
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void collect_neighbor_tx_fail(struct collect_neighbor *n, uint16_t num_tx);
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void collect_neighbor_set_congested(struct collect_neighbor *n);
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int collect_neighbor_is_congested(struct collect_neighbor *n);
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uint16_t collect_neighbor_link_estimate(struct collect_neighbor *n);
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uint16_t collect_neighbor_rtmetric_link_estimate(struct collect_neighbor *n);
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uint16_t collect_neighbor_rtmetric(struct collect_neighbor *n);
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#endif /* __COLLECT_NEIGHBOR_H__ */
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/** @} */
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/** @} */
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