Added bursts support in CSMA/ContikiMAC, and CFS-swapping in
queuebuf. Exemplified in examples/udp-stream.
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simonduq
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19 changed files with 1197 additions and 285 deletions
204
examples/udp-stream/udp-stream.c
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204
examples/udp-stream/udp-stream.c
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/*
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* Copyright (c) 2006, Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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* $Id: hello-world.c,v 1.1 2006/10/02 21:46:46 simonduq Exp $
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*/
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/**
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* \file
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* An example sending a UDP stream
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* \author
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* Simon Duquennoy <simonduq@sics.se>
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*/
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#include "contiki.h"
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#include "contiki-net.h"
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#include "uip.h"
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#include "net/rpl/rpl.h"
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#include "node-id.h"
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#include "servreg-hack.h"
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#include "cfs/cfs.h"
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#include "cfs/cfs-coffee.h"
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#define SINK_ID 1
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#define SENDER_ID 5
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#define DATASIZE 73
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#define STREAMLEN QUEUEBUF_CONF_NUM
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#define UDP_PORT 9876
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#define SERVICE_ID 190
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struct msg {
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uint8_t streamno;
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uint8_t seqno;
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uint8_t buf[DATASIZE];
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};
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static struct simple_udp_connection unicast_connection;
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/*---------------------------------------------------------------------------*/
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PROCESS(udpstream_process, "UDP Stream Process");
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AUTOSTART_PROCESSES(&udpstream_process);
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/*---------------------------------------------------------------------------*/
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static uip_ipaddr_t *
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set_global_address(void)
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{
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static uip_ipaddr_t ipaddr;
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int i;
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uint8_t state;
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uip_ip6addr(&ipaddr, 0xaaaa, 0, 0, 0, 0, 0, 0, 0);
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uip_ds6_set_addr_iid(&ipaddr, &uip_lladdr);
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uip_ds6_addr_add(&ipaddr, 0, ADDR_AUTOCONF);
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printf("IPv6 addresses: ");
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for(i = 0; i < UIP_DS6_ADDR_NB; i++) {
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state = uip_ds6_if.addr_list[i].state;
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if(uip_ds6_if.addr_list[i].isused &&
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(state == ADDR_TENTATIVE || state == ADDR_PREFERRED)) {
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uip_debug_ipaddr_print(&uip_ds6_if.addr_list[i].ipaddr);
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printf("\n");
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}
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}
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return &ipaddr;
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}
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/*---------------------------------------------------------------------------*/
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static void
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create_rpl_dag(uip_ipaddr_t *ipaddr)
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{
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struct uip_ds6_addr *root_if;
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root_if = uip_ds6_addr_lookup(ipaddr);
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if(root_if != NULL) {
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rpl_dag_t *dag;
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uip_ipaddr_t prefix;
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rpl_set_root(ipaddr);
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dag = rpl_get_dag(RPL_ANY_INSTANCE);
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uip_ip6addr(&prefix, 0xaaaa, 0, 0, 0, 0, 0, 0, 0);
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rpl_set_prefix(dag, &prefix, 64);
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printf("created a new RPL dag\n");
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} else {
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printf("failed to create a new RPL DAG\n");
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}
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}
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/*---------------------------------------------------------------------------*/
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static void
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receiver(struct simple_udp_connection *c,
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const uip_ipaddr_t *sender_addr,
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uint16_t sender_port,
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const uip_ipaddr_t *receiver_addr,
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uint16_t receiver_port,
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const uint8_t *data,
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uint16_t datalen)
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{
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static int cpt;
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cpt++;
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if(cpt%128==0) {
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printf("Received %d datagrams\n", cpt);
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}
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}
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/*---------------------------------------------------------------------------*/
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static void
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send_stream(uip_ipaddr_t *addr, uint16_t streamno)
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{
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int i;
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int seqno = 0;
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struct msg msg;
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memset(&msg, 0xaa, sizeof(msg));
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msg.streamno = streamno;
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for(i=0; i<STREAMLEN; i++) {
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msg.seqno = ++seqno;
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simple_udp_sendto(&unicast_connection, (char*)&msg, sizeof(msg), addr);
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}
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}
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/*---------------------------------------------------------------------------*/
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PROCESS_THREAD(udpstream_process, ev, data)
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{
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static uint16_t streamno;
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static struct etimer et;
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static uip_ipaddr_t *ipaddr;
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PROCESS_BEGIN();
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PROCESS_PAUSE();
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printf("Formatting Coffee FS...\n");
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cfs_coffee_format();
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printf("done.\n");
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/* We need re-initialize queuebuf after formatting */
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queuebuf_init();
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/* Start service registration */
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servreg_hack_init();
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ipaddr = set_global_address();
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if(node_id == SINK_ID) {
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/* The sink creates a dag and waits for UDP datagrams */
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create_rpl_dag(ipaddr);
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servreg_hack_register(SERVICE_ID, ipaddr);
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simple_udp_register(&unicast_connection, UDP_PORT,
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NULL, UDP_PORT, receiver);
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while(1) {
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PROCESS_WAIT_EVENT();
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}
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} else if(node_id == SENDER_ID) {
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/* The sender looks for the sink and sends UDP streams */
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ipaddr = NULL;
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simple_udp_register(&unicast_connection, UDP_PORT,
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NULL, UDP_PORT, receiver);
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etimer_set(&et, 10*CLOCK_SECOND);
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etimer_restart(&et);
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while(1) {
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PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
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if(ipaddr != NULL) {
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streamno++;
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send_stream(ipaddr, streamno);
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} else {
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ipaddr = servreg_hack_lookup(SERVICE_ID);
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if(ipaddr != NULL) {
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etimer_set(&et, 2*CLOCK_SECOND);
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printf("Streaming to ");
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uip_debug_ipaddr_print(ipaddr);
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printf("\n");
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} else {
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printf("Service %d not found\n", SERVICE_ID);
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}
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}
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etimer_restart(&et);
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}
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}
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PROCESS_END();
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}
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/*---------------------------------------------------------------------------*/
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