104 lines
3.6 KiB
C
104 lines
3.6 KiB
C
/*
|
|
* Copyright (c) 2009, 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 code that uses the annuncement module
|
|
* \author
|
|
* Adam Dunkels <adam@sics.se>
|
|
*/
|
|
|
|
#include "contiki.h"
|
|
#include "net/rime/rime.h"
|
|
|
|
#include "net/rime/announcement.h"
|
|
|
|
#include <stdio.h>
|
|
|
|
#if CONTIKI_TARGET_NETSIM
|
|
#include "ether.h"
|
|
#endif
|
|
|
|
/*---------------------------------------------------------------------------*/
|
|
PROCESS(example_announcement_process, "Example announcement process");
|
|
AUTOSTART_PROCESSES(&example_announcement_process);
|
|
/*---------------------------------------------------------------------------*/
|
|
static void
|
|
received_announcement(struct announcement *a, const rimeaddr_t *from,
|
|
uint16_t id, uint16_t value)
|
|
{
|
|
/* We set our own announced value to one plus that of our neighbor. */
|
|
announcement_set_value(a, value + 1);
|
|
|
|
printf("Got announcement from %d.%d, id %d, value %d, our new value is %d\n",
|
|
from->u8[0], from->u8[1], id, value, value + 1);
|
|
|
|
#if CONTIKI_TARGET_NETSIM
|
|
{
|
|
char buf[8];
|
|
sprintf(buf, "%d", value + 1);
|
|
ether_set_text(buf);
|
|
}
|
|
#endif
|
|
|
|
}
|
|
static struct announcement example_announcement;
|
|
/*---------------------------------------------------------------------------*/
|
|
PROCESS_THREAD(example_announcement_process, ev, data)
|
|
{
|
|
PROCESS_EXITHANDLER(announcement_remove(&example_announcement);)
|
|
|
|
PROCESS_BEGIN();
|
|
|
|
/* Register an announcement with ID 128. We provide the
|
|
'received_announcement' function pointer so that this function
|
|
will be called when a announcements from neighbors are heard. */
|
|
|
|
announcement_register(&example_announcement,
|
|
128,
|
|
received_announcement);
|
|
|
|
/* Set the lowest eight bytes of the Rime address as the value. */
|
|
announcement_set_value(&example_announcement, rimeaddr_node_addr.u8[0]);
|
|
|
|
while(1) {
|
|
static struct etimer et;
|
|
|
|
/* Listen for announcements every ten seconds. */
|
|
etimer_set(&et, CLOCK_SECOND * 10);
|
|
PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
|
|
announcement_listen(1);
|
|
}
|
|
|
|
PROCESS_END();
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|