mirror of
https://github.com/oliverschmidt/contiki.git
synced 2024-11-20 10:35:34 +00:00
104 lines
2.9 KiB
C
104 lines
2.9 KiB
C
#include "contiki-net.h"
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#include "http-socket.h"
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#include "ip64-addr.h"
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#include "dev/leds.h"
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#include "rpl.h"
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#include <stdio.h>
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static struct http_socket s;
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static int bytes_received = 0;
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static int restarts;
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static struct ctimer reconnect_timer;
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static void callback(struct http_socket *s, void *ptr,
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http_socket_event_t e,
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const uint8_t *data, uint16_t datalen);
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/*---------------------------------------------------------------------------*/
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PROCESS(http_example_process, "HTTP Example");
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AUTOSTART_PROCESSES(&http_example_process);
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/*---------------------------------------------------------------------------*/
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static void
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reconnect(void *dummy)
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{
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rpl_set_mode(RPL_MODE_MESH);
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http_socket_get(&s, "http://www.contiki-os.org/", 0, 0,
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callback, NULL);
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}
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/*---------------------------------------------------------------------------*/
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static void
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restart(void)
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{
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int scale;
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restarts++;
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printf("restart %d\n", restarts);
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scale = restarts;
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if(scale > 5) {
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scale = 5;
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}
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ctimer_set(&reconnect_timer, random_rand() % ((CLOCK_SECOND * 10) << scale),
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reconnect, NULL);
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}
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/*---------------------------------------------------------------------------*/
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static void
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callback(struct http_socket *s, void *ptr,
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http_socket_event_t e,
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const uint8_t *data, uint16_t datalen)
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{
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if(e == HTTP_SOCKET_ERR) {
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printf("HTTP socket error\n");
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} else if(e == HTTP_SOCKET_TIMEDOUT) {
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printf("HTTP socket error: timed out\n");
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restart();
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} else if(e == HTTP_SOCKET_ABORTED) {
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printf("HTTP socket error: aborted\n");
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restart();
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} else if(e == HTTP_SOCKET_HOSTNAME_NOT_FOUND) {
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printf("HTTP socket error: hostname not found\n");
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restart();
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} else if(e == HTTP_SOCKET_CLOSED) {
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if(bytes_received > 0) {
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printf("HTTP socket closed, %d bytes received\n", bytes_received);
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leds_off(LEDS_RED);
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rpl_set_mode(RPL_MODE_FEATHER);
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} else {
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restart();
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}
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} else if(e == HTTP_SOCKET_DATA) {
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bytes_received += datalen;
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printf("HTTP socket received %d bytes of data\n", datalen);
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}
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}
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/*---------------------------------------------------------------------------*/
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PROCESS_THREAD(http_example_process, ev, data)
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{
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static struct etimer et;
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uip_ip4addr_t ip4addr;
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uip_ip6addr_t ip6addr;
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PROCESS_BEGIN();
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uip_ipaddr(&ip4addr, 8,8,8,8);
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ip64_addr_4to6(&ip4addr, &ip6addr);
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uip_nameserver_update(&ip6addr, UIP_NAMESERVER_INFINITE_LIFETIME);
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etimer_set(&et, CLOCK_SECOND * 20);
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PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
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http_socket_init(&s);
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http_socket_get(&s, "http://www.contiki-os.org/", 0, 0,
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callback, NULL);
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leds_on(LEDS_RED);
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restarts = 0;
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etimer_set(&et, CLOCK_SECOND);
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while(1) {
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PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
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etimer_reset(&et);
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}
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PROCESS_END();
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}
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/*---------------------------------------------------------------------------*/
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