nes-proj/examples/rime/example-collect.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.
*
*/
/**
* \file
* Example of how the collect primitive works.
* \author
* Adam Dunkels <adam@sics.se>
*/
#include "contiki.h"
#include "lib/random.h"
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#include "net/rime/rime.h"
#include "net/rime/collect.h"
#include "dev/leds.h"
#include "dev/button-sensor.h"
#include "net/netstack.h"
#include <stdio.h>
static struct collect_conn tc;
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/*---------------------------------------------------------------------------*/
PROCESS(example_collect_process, "Test collect process");
AUTOSTART_PROCESSES(&example_collect_process);
/*---------------------------------------------------------------------------*/
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static void
recv(const linkaddr_t *originator, uint8_t seqno, uint8_t hops)
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{
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printf("Sink got message from %d.%d, seqno %d, hops %d: len %d '%s'\n",
originator->u8[0], originator->u8[1],
seqno, hops,
packetbuf_datalen(),
(char *)packetbuf_dataptr());
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}
/*---------------------------------------------------------------------------*/
static const struct collect_callbacks callbacks = { recv };
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/*---------------------------------------------------------------------------*/
PROCESS_THREAD(example_collect_process, ev, data)
{
static struct etimer periodic;
static struct etimer et;
PROCESS_BEGIN();
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collect_open(&tc, 130, COLLECT_ROUTER, &callbacks);
if(linkaddr_node_addr.u8[0] == 1 &&
linkaddr_node_addr.u8[1] == 0) {
printf("I am sink\n");
collect_set_sink(&tc, 1);
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}
/* Allow some time for the network to settle. */
etimer_set(&et, 120 * CLOCK_SECOND);
PROCESS_WAIT_UNTIL(etimer_expired(&et));
while(1) {
/* Send a packet every 30 seconds. */
etimer_set(&periodic, CLOCK_SECOND * 30);
etimer_set(&et, random_rand() % (CLOCK_SECOND * 30));
PROCESS_WAIT_UNTIL(etimer_expired(&et));
{
static linkaddr_t oldparent;
const linkaddr_t *parent;
printf("Sending\n");
packetbuf_clear();
packetbuf_set_datalen(sprintf(packetbuf_dataptr(),
"%s", "Hello") + 1);
collect_send(&tc, 15);
parent = collect_parent(&tc);
if(!linkaddr_cmp(parent, &oldparent)) {
if(!linkaddr_cmp(&oldparent, &linkaddr_null)) {
printf("#L %d 0\n", oldparent.u8[0]);
}
if(!linkaddr_cmp(parent, &linkaddr_null)) {
printf("#L %d 1\n", parent->u8[0]);
}
linkaddr_copy(&oldparent, parent);
}
}
PROCESS_WAIT_UNTIL(etimer_expired(&periodic));
}
PROCESS_END();
}
/*---------------------------------------------------------------------------*/