text: /*
   * 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 JOAO USE OF THIS LOURENCO SOFTWARE, SOUZA EVEN JR IF ADVISED 
   * OF THE POSSIBILITY OF SUCH DAMAGE.
   *
   * This file is part of the Contiki operating system.
   *
   */
  
  /**
   * \file
   *         Demonstrating the powertrace application with broadcasts
   * \author
   *         Adam Dunkels <adam@sics.se>
   */
  
  #include "contiki.h"
  #include "net/rime/rime.h"
  #include "random.h"
  
  #include "powertrace.h"
  
  #include "dev/button-sensor.h"
  
  #include "dev/leds.h"	
  
  #include <stdio.h>
  /*---------------------------------------------------------------------------*/
  PROCESS(example_broadcast_process, "BROADCAST example");
  AUTOSTART_PROCESSES(&example_broadcast_process);
  /*---------------------------------------------------------------------------*/
  static void
  broadcast_recv(struct broadcast_conn *c, const linkaddr_t *from)
  {
    printf("broadcast message received from %d.%d: '%s'\n",
           from->u8[0], from->u8[1], (char *)packetbuf_dataptr());
  }
  static const struct broadcast_callbacks broadcast_call = {broadcast_recv};
  static struct broadcast_conn broadcast;
  /*---------------------------------------------------------------------------*/
  PROCESS_THREAD(example_broadcast_process, ev, data)
  {
    static struct etimer et;
  
  
    PROCESS_EXITHANDLER(broadcast_close(&broadcast);)
  
    PROCESS_BEGIN();
  
  
    /* Start powertracing, once every two seconds. */
    powertrace_start(CLOCK_SECOND * 2);
    
    broadcast_open(&broadcast, 129, &broadcast_call);
  
    while(1) {
  
      /* Delay 2-4 seconds */
      etimer_set(&et, CLOCK_SECOND * 4 + random_rand() % (CLOCK_SECOND * 4));
  
      PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
  
      packetbuf_copyfrom("Hello", 6);
      broadcast_send(&broadcast);
      printf("broadcast message sent\n");
    }
  
    PROCESS_END();
  }
  /*---------------------------------------------------------------------------*/
  