nes-proj/examples/rime/example-collect.c

117 lines
4.0 KiB
C

/*
* 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-collect.c,v 1.15 2010/11/07 10:32:13 adamdunkels Exp $
*/
/**
* \file
* Example of how the collect primitive works.
* \author
* Adam Dunkels <adam@sics.se>
*/
#include "contiki.h"
#include "lib/random.h"
#include "net/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;
/*---------------------------------------------------------------------------*/
PROCESS(example_collect_process, "Test collect process");
AUTOSTART_PROCESSES(&example_collect_process);
/*---------------------------------------------------------------------------*/
static void
recv(const rimeaddr_t *originator, uint8_t seqno, uint8_t hops)
{
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());
}
/*---------------------------------------------------------------------------*/
static const struct collect_callbacks callbacks = { recv };
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(example_collect_process, ev, data)
{
PROCESS_BEGIN();
collect_open(&tc, 130, COLLECT_ROUTER, &callbacks);
if(rimeaddr_node_addr.u8[0] == 1 &&
rimeaddr_node_addr.u8[1] == 0) {
printf("I am sink\n");
collect_set_sink(&tc, 1);
}
while(1) {
static struct etimer et;
/* Send a packet every 16 seconds; first wait 8 seconds, than a
random time between 0 and 8 seconds. */
etimer_set(&et, CLOCK_SECOND * 16 + random_rand() % (CLOCK_SECOND * 16));
PROCESS_WAIT_EVENT();
if(etimer_expired(&et)) {
static rimeaddr_t oldparent;
const rimeaddr_t *parent;
printf("Sending\n");
packetbuf_clear();
packetbuf_set_datalen(sprintf(packetbuf_dataptr(),
"%s", "Hello") + 1);
collect_send(&tc, 10);
parent = collect_parent(&tc);
if(!rimeaddr_cmp(parent, &oldparent)) {
if(!rimeaddr_cmp(&oldparent, &rimeaddr_null)) {
printf("#L %d 0\n", oldparent.u8[0]);
}
if(!rimeaddr_cmp(parent, &rimeaddr_null)) {
printf("#L %d 1\n", parent->u8[0]);
}
rimeaddr_copy(&oldparent, parent);
}
}
}
PROCESS_END();
}
/*---------------------------------------------------------------------------*/