example-unicast.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-unicast.c,v 1.5 2010/02/02 16:36:46 adamdunkels Exp $
 */

/**
 * \file
 *         Best-effort single-hop unicast example
 * \author
 *         Adam Dunkels <adam@sics.se>
 */

#include "contiki.h"
#include "net/rime.h"

#include "dev/button-sensor.h"

#include "dev/leds.h"

#include <stdio.h>
#include "node-id.h"

/*---------------------------------------------------------------------------*/
PROCESS(example_unicast_process, "Example unicast");
AUTOSTART_PROCESSES(&example_unicast_process);
/*---------------------------------------------------------------------------*/
static uint16_t count=0, count2=0;
static uint16_t first=0;
static uint8_t rec[100];

static void
recv_uc(struct unicast_conn *c, const rimeaddr_t *from)
{
    uint16_t len = packetbuf_datalen();
    uint16_t seq =*(char *)packetbuf_dataptr();
    printf("rec %u\n",seq);
    if (first==0){
        first=seq;
    }
    leds_off(1);
    if (seq <=100+first){
        rec[seq-first]=1;
//        printf("rec %u\n",seq-first);
    }
    count++;
    if (count==101){
        uint16_t i=0;
        uint16_t l=0;
        for (i=0; i<100; i++){
                if (rec[i]==0){

                        printf("lost %u\n",i);
                        l++;
                }
        }
        printf("loss %u\n",l);
    }

    leds_on(1);
  printf("unicast message received from %d.%d\n",
         from->u8[0], from->u8[1]);
         int16_t rssi = packetbuf_attr(PACKETBUF_ATTR_RSSI);
//       printf("NET: rssi = %d\n", rssi-45);
    
}
static const struct unicast_callbacks unicast_callbacks = {recv_uc};
static struct unicast_conn uc;
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(example_unicast_process, ev, data)
{
  PROCESS_EXITHANDLER(unicast_close(&uc);)
    
  PROCESS_BEGIN();

  unicast_open(&uc, 146, &unicast_callbacks);
  printf("go\n");
  while(1) {
    rimeaddr_t addr;
    static uint8_t a[10];
    leds_on(2);
    a[0]=count2;
    count2++;
    static struct etimer et;
    
    etimer_set(&et, CLOCK_SECOND*1);
    
    PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
    packetbuf_copyfrom(a, sizeof(a));
    addr.u8[0] = 2;
    addr.u8[1] = 0;
    if(!rimeaddr_cmp(&addr, &rimeaddr_node_addr)) {
      unicast_send(&uc, &addr);
    }
    leds_off(2);

  }

  PROCESS_END();
}
/*---------------------------------------------------------------------------*/