osd-contiki/examples/rime/example-unicast.c

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/*
* 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.
*
*/
/**
* \file
* Best-effort single-hop unicast example
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* \author
* Adam Dunkels <adam@sics.se>
*/
#include "contiki.h"
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#include "net/rime/rime.h"
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#include <stdio.h>
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/*---------------------------------------------------------------------------*/
PROCESS(example_unicast_process, "Example unicast");
AUTOSTART_PROCESSES(&example_unicast_process);
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/*---------------------------------------------------------------------------*/
static void
recv_uc(struct unicast_conn *c, const linkaddr_t *from)
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{
printf("unicast message received from %d.%d\n",
from->u8[0], from->u8[1]);
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}
/*---------------------------------------------------------------------------*/
static void
sent_uc(struct unicast_conn *c, int status, int num_tx)
{
const linkaddr_t *dest = packetbuf_addr(PACKETBUF_ADDR_RECEIVER);
if(linkaddr_cmp(dest, &linkaddr_null)) {
return;
}
printf("unicast message sent to %d.%d: status %d num_tx %d\n",
dest->u8[0], dest->u8[1], status, num_tx);
}
/*---------------------------------------------------------------------------*/
static const struct unicast_callbacks unicast_callbacks = {recv_uc, sent_uc};
static struct unicast_conn uc;
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/*---------------------------------------------------------------------------*/
PROCESS_THREAD(example_unicast_process, ev, data)
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{
PROCESS_EXITHANDLER(unicast_close(&uc);)
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PROCESS_BEGIN();
unicast_open(&uc, 146, &unicast_callbacks);
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while(1) {
static struct etimer et;
linkaddr_t addr;
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etimer_set(&et, CLOCK_SECOND);
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PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
packetbuf_copyfrom("Hello", 5);
addr.u8[0] = 1;
addr.u8[1] = 0;
if(!linkaddr_cmp(&addr, &linkaddr_node_addr)) {
unicast_send(&uc, &addr);
}
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}
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PROCESS_END();
}
/*---------------------------------------------------------------------------*/