nes-proj/examples/nullnet/nullnet-broadcast.c

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/*
* Copyright (c) 2017, RISE SICS.
* 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
* NullNet broadcast example
* \author
* Simon Duquennoy <simon.duquennoy@ri.se>
*
*/
#include "contiki.h"
#include "net/netstack.h"
#include "net/nullnet/nullnet.h"
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#include <string.h>
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#include <stdio.h> /* For printf() */
/* Log configuration */
#include "sys/log.h"
#define LOG_MODULE "App"
#define LOG_LEVEL LOG_LEVEL_INFO
/* Configuration */
#define SEND_INTERVAL (8 * CLOCK_SECOND)
#if MAC_CONF_WITH_TSCH
#include "net/mac/tsch/tsch.h"
static linkaddr_t coordinator_addr = {{ 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }};
#endif /* MAC_CONF_WITH_TSCH */
/*---------------------------------------------------------------------------*/
PROCESS(nullnet_example_process, "NullNet broadcast example");
AUTOSTART_PROCESSES(&nullnet_example_process);
/*---------------------------------------------------------------------------*/
void input_callback(const void *data, uint16_t len,
const linkaddr_t *src, const linkaddr_t *dest)
{
if(len == sizeof(unsigned)) {
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unsigned count;
memcpy(&count, data, sizeof(count));
LOG_INFO("Received %u from ", count);
LOG_INFO_LLADDR(src);
LOG_INFO_("\n");
}
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}
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(nullnet_example_process, ev, data)
{
static struct etimer periodic_timer;
static unsigned count = 0;
PROCESS_BEGIN();
#if MAC_CONF_WITH_TSCH
tsch_set_coordinator(linkaddr_cmp(&coordinator_addr, &linkaddr_node_addr));
#endif /* MAC_CONF_WITH_TSCH */
/* Initialize NullNet */
nullnet_buf = (uint8_t *)&count;
nullnet_len = sizeof(count);
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nullnet_set_input_callback(input_callback);
etimer_set(&periodic_timer, SEND_INTERVAL);
while(1) {
PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&periodic_timer));
LOG_INFO("Sending %u to ", count);
LOG_INFO_LLADDR(NULL);
LOG_INFO_("\n");
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memcpy(nullnet_buf, &count, sizeof(count));
nullnet_len = sizeof(count);
NETSTACK_NETWORK.output(NULL);
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count++;
etimer_reset(&periodic_timer);
}
PROCESS_END();
}
/*---------------------------------------------------------------------------*/