112 lines
3.4 KiB
C
112 lines
3.4 KiB
C
/*
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* Copyright (c) 2013, Institute for Pervasive Computing, ETH Zurich
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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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/**
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* \file
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* Erbium (Er) CoAP client example.
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* \author
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* Matthias Kovatsch <kovatsch@inf.ethz.ch>
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* Gaëtan Harter <gaetan.harter@inria.fr>
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "contiki.h"
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#include "contiki-net.h"
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#include "er-coap-engine.h"
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#define DEBUG 0
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#include "uip-debug.h"
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#ifndef ER_COAP_SERVER_ADDR
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/* cooja2 */
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#define ER_COAP_SERVER_ADDR "fe80::0212:7402:0002:0x0202"
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#endif /* ER_COAP_SERVER_ADDR */
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#define REMOTE_PORT UIP_HTONS(COAP_DEFAULT_PORT)
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#define TOGGLE_INTERVAL 10
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PROCESS(er_example_client, "Erbium Example Client");
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AUTOSTART_PROCESSES(&er_example_client);
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/* This function is will be passed to COAP_BLOCKING_REQUEST() to handle responses. */
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void
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client_chunk_handler(void *response)
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{
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const uint8_t *chunk;
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int len = coap_get_payload(response, &chunk);
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printf("|%.*s", len, (char *)chunk);
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}
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PROCESS_THREAD(er_example_client, ev, data)
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{
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PROCESS_BEGIN();
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static struct etimer et;
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static coap_packet_t request[1]; /* This way the packet can be treated as pointer as usual. */
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static uip_ipaddr_t server_ipaddr;
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uiplib_ipaddrconv(ER_COAP_SERVER_ADDR, &server_ipaddr);
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/* receives all CoAP messages */
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coap_init_engine();
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etimer_set(&et, TOGGLE_INTERVAL * CLOCK_SECOND);
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while(1) {
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PROCESS_YIELD();
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if(etimer_expired(&et)) {
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printf("--Toggle timer--\n");
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/* prepare request, TID is set by COAP_BLOCKING_REQUEST() */
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coap_init_message(request, COAP_TYPE_CON, COAP_GET, 0);
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coap_set_header_uri_path(request, "test/hello");
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PRINT6ADDR(&server_ipaddr);
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PRINTF(" : %u\n", UIP_HTONS(REMOTE_PORT));
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COAP_BLOCKING_REQUEST(&server_ipaddr, REMOTE_PORT, request,
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client_chunk_handler);
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printf("\n--Done--\n");
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etimer_reset(&et);
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}
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}
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PROCESS_END();
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}
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