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

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/*
* 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.
*
*/
/**
* \file
* Neighbor discovery header file
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* \author
* Adam Dunkels <adam@sics.se>
*/
/**
* \addtogroup rime
* @{
*/
/**
* \defgroup rimeneighbordiscovery Neighbor discovery
* @{
*
* The neighbor-discovery module implements a periodic neighbor
* discovery mechanism. A callback is invoked for every incoming
* neighbor discovery message.
*
* \section channels Channels
*
* The neighbor-discovery module uses 1 channel.
*
*/
#ifndef NEIGHBOR_DISCOVERY_H_
#define NEIGHBOR_DISCOVERY_H_
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#include "net/rime/broadcast.h"
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#include "sys/ctimer.h"
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struct neighbor_discovery_conn;
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struct neighbor_discovery_callbacks {
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void (* recv)(struct neighbor_discovery_conn *c,
const linkaddr_t *from, uint16_t val);
void (* sent)(struct neighbor_discovery_conn *c);
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};
struct neighbor_discovery_conn {
struct broadcast_conn c;
const struct neighbor_discovery_callbacks *u;
struct ctimer send_timer, interval_timer;
clock_time_t initial_interval, min_interval, max_interval;
clock_time_t current_interval;
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uint16_t val;
};
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void neighbor_discovery_open(struct neighbor_discovery_conn *c,
uint16_t channel,
clock_time_t initial,
clock_time_t min,
clock_time_t max,
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const struct neighbor_discovery_callbacks *u);
void neighbor_discovery_close(struct neighbor_discovery_conn *c);
void neighbor_discovery_set_val(struct neighbor_discovery_conn *c, uint16_t val);
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void neighbor_discovery_start(struct neighbor_discovery_conn *c, uint16_t val);
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#endif /* NEIGHBOR_DISCOVERY_H_ */
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/** @} */
/** @} */