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example-broadcast.c
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example-broadcast.c
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/**
* \file
* Example application for the motes to run. Adapted from Contiki's
* examples/rime/broadcast.c.
* \author
* Mat Wymore <mlwymore@gmail.com>
*/
#include "contiki.h"
#include "net/rime/rime.h"
#include "random.h"
#include "powertrace.h"
#include "dev/button-sensor.h"
#include "dev/leds.h"
#include "net/netstack.h"
#include <stdio.h>
/* How often the node should broadcast a packet, in seconds. Automatically set by shell script. */
#define DATA_ARRIVAL_INTERVAL 25
/* How many packets the node should send in the simulation. Automatically set by shell script. */
#define NUM_PACKETS_TO_SEND 250
static int sentCounter = 0;
static int attemptedCounter = 0;
/*---------------------------------------------------------------------------*/
PROCESS(example_broadcast_process, "Broadcast example");
AUTOSTART_PROCESSES(&example_broadcast_process);
/*---------------------------------------------------------------------------*/
static void
broadcast_recv(struct broadcast_conn *c, const linkaddr_t *from)
{
//printf("message received from %d.%d: '%s'\n",
// from->u8[0], from->u8[1], (char *)packetbuf_dataptr());
}
static void
broadcast_sent(struct broadcast_conn *bc, int status, int num_tx)
{
//printf("message sent\n");
if (status == MAC_TX_OK) {
sentCounter++;
}
/*if (sentCounter % 8 == 0) {
printf("Reliability stats: %d attempted, %d sent\n", attemptedCounter, sentCounter);
}*/
}
static const struct broadcast_callbacks broadcast_call = {broadcast_recv, broadcast_sent};
static struct broadcast_conn broadcast;
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(example_broadcast_process, ev, data)
{
static struct etimer et;
static clock_time_t start_time;
static uint32_t interval;
//static int i = 0;
PROCESS_EXITHANDLER(broadcast_close(&broadcast);)
PROCESS_BEGIN();
start_time = clock_time();
/* Start powertracing, once every 1 seconds. */
//powertrace_start(CLOCK_SECOND * 1);
printf("data arrival interval: %d, start time: %lu\n", DATA_ARRIVAL_INTERVAL, (unsigned long)start_time);
broadcast_open(&broadcast, 129, &broadcast_call);
while(1) {
/* Delay a few seconds */
//interval = CLOCK_SECOND * (DATA_ARRIVAL_INTERVAL - 1) + random_rand() % (CLOCK_SECOND * 2);
interval = CLOCK_SECOND * DATA_ARRIVAL_INTERVAL;
etimer_set(&et, interval);
//printf("data arrival timer set for %lu\n", interval);
PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
//if (clock_time() - start_time < CLOCK_SECOND * 3600) {
if (attemptedCounter < NUM_PACKETS_TO_SEND) {
packetbuf_copyfrom("Hello", 6);
//for (i = 0; i < 1; i++) {
broadcast_send(&broadcast);
attemptedCounter++;
//printf("message queued\n");
//}
}
else if (sentCounter == attemptedCounter || clock_time() > CLOCK_SECOND * DATA_ARRIVAL_INTERVAL * NUM_PACKETS_TO_SEND * 2) {
//printf("done with program\n");
break;
}
}
printf("RELIABILITY %d %d\n", attemptedCounter, sentCounter);
PROCESS_END();
}
/*---------------------------------------------------------------------------*/