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