osd-contiki/examples/rime/example-multihop.c

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/*
* Copyright (c) 2007, 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: example-multihop.c,v 1.3 2009/03/12 21:58:21 adamdunkels Exp $
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*/
/**
* \file
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* Testing the multihop forwarding layer (multihop) in Rime
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* \author
* Adam Dunkels <adam@sics.se>
*/
#include "contiki.h"
#include "net/rime.h"
#include "dev/button-sensor.h"
#include "dev/leds.h"
#include <stdio.h>
/*---------------------------------------------------------------------------*/
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PROCESS(example_multihop_process, "multihop example");
AUTOSTART_PROCESSES(&example_multihop_process);
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/*---------------------------------------------------------------------------*/
static void
recv(struct multihop_conn *c, rimeaddr_t *sender, rimeaddr_t *prevhop,
uint8_t hops)
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{
printf("multihop message received '%s'\n", (char *)packetbuf_dataptr());
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}
static rimeaddr_t *
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forward(struct multihop_conn *c, rimeaddr_t *originator, rimeaddr_t *dest,
rimeaddr_t *prevhop, uint8_t hops)
{
printf("Forwarding message '%s'\n", (char *)packetbuf_dataptr());
return NULL;
}
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static const struct multihop_callbacks multihop_call = {recv, forward};
static struct multihop_conn multihop;
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/*---------------------------------------------------------------------------*/
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PROCESS_THREAD(example_multihop_process, ev, data)
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{
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PROCESS_EXITHANDLER(multihop_close(&multihop);)
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PROCESS_BEGIN();
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multihop_open(&multihop, 128, &multihop_call);
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while(1) {
static struct etimer et;
rimeaddr_t to;
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etimer_set(&et, CLOCK_SECOND);
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PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
packetbuf_copyfrom("Hej", 4);
to.u8[0] = 161;
to.u8[1] = 161;
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multihop_send(&multihop, &to);
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}
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PROCESS_END();
}
/*---------------------------------------------------------------------------*/