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Allow the network to settle before sending first packet. Packet transmissions are now periodic, and randomized within each period.

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This commit is contained in:
adamdunkels 2011-01-10 15:11:44 +00:00
parent 81d23a3a36
commit 820d6eb334
1 changed files with 16 additions and 6 deletions
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22
examples/rime/example-collect.c
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@ -28,7 +28,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: example-collect.c,v 1.15 2010/11/07 10:32:13 adamdunkels Exp $
* $Id: example-collect.c,v 1.16 2011/01/10 15:11:44 adamdunkels Exp $
*/
/**
@ -69,6 +69,9 @@ static const struct collect_callbacks callbacks = { recv };
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(example_collect_process, ev, data)
{
static struct etimer periodic;
static struct etimer et;
PROCESS_BEGIN();
collect_open(&tc, 130, COLLECT_ROUTER, &callbacks);
@ -79,23 +82,30 @@ PROCESS_THREAD(example_collect_process, ev, data)
collect_set_sink(&tc, 1);
}
/* Allow some time for the network to settle. */
etimer_set(&et, 120 * CLOCK_SECOND);
PROCESS_WAIT_UNTIL(etimer_expired(&et));
while(1) {
static struct etimer et;
/* Send a packet every 16 seconds; first wait 8 seconds, than a
random time between 0 and 8 seconds. */
/* Send a packet every 30 seconds. */
if(etimer_expired(&periodic)) {
etimer_set(&periodic, CLOCK_SECOND * 30);
etimer_set(&et, random_rand() % (CLOCK_SECOND * 30));
}
etimer_set(&et, CLOCK_SECOND * 16 + random_rand() % (CLOCK_SECOND * 16));
PROCESS_WAIT_EVENT();
if(etimer_expired(&et)) {
static rimeaddr_t oldparent;
const rimeaddr_t *parent;
printf("Sending\n");
packetbuf_clear();
packetbuf_set_datalen(sprintf(packetbuf_dataptr(),
"%s", "Hello") + 1);
collect_send(&tc, 10);
collect_send(&tc, 15);
parent = collect_parent(&tc);
if(!rimeaddr_cmp(parent, &oldparent)) {