contiki/examples/sky-ip/ajax-cgi.c

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/*
* Copyright (c) 2001, Adam Dunkels.
* 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. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 uIP TCP/IP stack.
*
* $Id: ajax-cgi.c,v 1.7 2010/04/09 13:19:05 nifi Exp $
*
*/
/*
* This file includes functions that are called by the web server
* scripts. The functions takes no argument, and the return value is
* interpreted as follows. A zero means that the function did not
* complete and should be invoked for the next packet as well. A
* non-zero value indicates that the function has completed and that
* the web server should move along to the next script line.
*
*/
#include <stdio.h>
#include <string.h>
#include "contiki-net.h"
#include "net/rime/collect-neighbor.h"
#include "httpd.h"
#include "httpd-cgi.h"
#include "httpd-fs.h"
#include "lib/petsciiconv.h"
static struct httpd_cgi_call *calls = NULL;
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static struct collect_neighbor_list neighbor_list;
/*---------------------------------------------------------------------------*/
static
PT_THREAD(nullfunction(struct httpd_state *s, char *ptr))
{
PSOCK_BEGIN(&s->sout);
PSOCK_END(&s->sout);
}
/*---------------------------------------------------------------------------*/
httpd_cgifunction
httpd_cgi(char *name)
{
struct httpd_cgi_call *f;
/* Find the matching name in the table, return the function. */
for(f = calls; f != NULL; f = f->next) {
if(strncmp(f->name, name, strlen(f->name)) == 0) {
return f->function;
}
}
return nullfunction;
}
/*---------------------------------------------------------------------------*/
static
PT_THREAD(nodeidcall(struct httpd_state *s, char *ptr))
{
static char buf[10];
PSOCK_BEGIN(&s->sout);
snprintf(buf, sizeof(buf), "%d.%d",
rimeaddr_node_addr.u8[0], rimeaddr_node_addr.u8[1]);
PSOCK_SEND_STR(&s->sout, buf);
PSOCK_END(&s->sout);
}
/*---------------------------------------------------------------------------*/
void
httpd_cgi_add(struct httpd_cgi_call *c)
{
struct httpd_cgi_call *l;
c->next = NULL;
if(calls == NULL) {
calls = c;
} else {
for(l = calls; l->next != NULL; l = l->next);
l->next = c;
}
}
/*---------------------------------------------------------------------------*/
#if CONTIKI_TARGET_SKY
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#include "dev/sht11-sensor.h"
#include "dev/light-sensor.h"
#endif /* CONTIKI_TARGET_SKY */
static
PT_THREAD(sensorscall(struct httpd_state *s, char *ptr))
{
static struct timer t;
static int i;
static char buf[100];
static unsigned long last_cpu, last_lpm, last_listen, last_transmit;
PSOCK_BEGIN(&s->sout);
timer_set(&t, CLOCK_SECOND);
i = 0;
/* while(1)*/ {
/* timer_restart(&t);
PSOCK_WAIT_UNTIL(&s->sout, timer_expired(&t));*/
#if CONTIKI_TARGET_SKY
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SENSORS_ACTIVATE(sht11_sensor);
SENSORS_ACTIVATE(light_sensor);
snprintf(buf, sizeof(buf),
"t(%d);h(%d);l1(%d);l2(%d);",
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sht11_sensor.value(SHT11_SENSOR_TEMP),
sht11_sensor.value(SHT11_SENSOR_HUMIDITY),
light_sensor.value(LIGHT_SENSOR_PHOTOSYNTHETIC),
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light_sensor.value(LIGHT_SENSOR_TOTAL_SOLAR));
SENSORS_DEACTIVATE(sht11_sensor);
SENSORS_DEACTIVATE(light_sensor);
#else /* CONTIKI_TARGET_SKY */
snprintf(buf, sizeof(buf),
"t(%d);h(%d);l1(%d);l2(%d);",
0,
0,
0,
0);
#endif /* CONTIKI_TARGET_SKY */
PSOCK_SEND_STR(&s->sout, buf);
/* timer_restart(&t);
PSOCK_WAIT_UNTIL(&s->sout, timer_expired(&t));*/
snprintf(buf, sizeof(buf),
"p(%lu,%lu,%lu,%lu);i(%d);",
energest_type_time(ENERGEST_TYPE_CPU) - last_cpu,
energest_type_time(ENERGEST_TYPE_LPM) - last_lpm,
energest_type_time(ENERGEST_TYPE_TRANSMIT) - last_transmit,
energest_type_time(ENERGEST_TYPE_LISTEN) - last_listen,
i++);
last_cpu = energest_type_time(ENERGEST_TYPE_CPU);
last_lpm = energest_type_time(ENERGEST_TYPE_LPM);
last_transmit = energest_type_time(ENERGEST_TYPE_TRANSMIT);
last_listen = energest_type_time(ENERGEST_TYPE_LISTEN);
PSOCK_SEND_STR(&s->sout, buf);
}
PSOCK_END(&s->sout);
}
/*---------------------------------------------------------------------------*/
static unsigned short
make_neighbor(void *arg)
{
struct httpd_state *s = (struct httpd_state *)arg;
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struct collect_neighbor *n = collect_neighbor_list_get(&neighbor_list, s->u.count);
if(n == NULL) {
return 0;
}
return snprintf((char *)uip_appdata, uip_mss(),
"<li><a href=\"http://172.16.%d.%d/\">%d.%d</a>\r\n",
n->addr.u8[0], n->addr.u8[1],
n->addr.u8[0], n->addr.u8[1]);
}
/*---------------------------------------------------------------------------*/
static
PT_THREAD(neighborscall(struct httpd_state *s, char *ptr))
{
PSOCK_BEGIN(&s->sout);
announcement_listen(1);
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/* printf("neighbor_num %d\n", collect_neighbor_list_num(&neighbor_list)); */
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for(s->u.count = 0; s->u.count < collect_neighbor_list_num(&neighbor_list); s->u.count++) {
/* printf("count %d\n", s->u.count); */
if(collect_neighbor_list_get(&neighbor_list, s->u.count) != NULL) {
/* printf("!= NULL\n"); */
PSOCK_GENERATOR_SEND(&s->sout, make_neighbor, s);
}
}
PSOCK_END(&s->sout);
}
/*---------------------------------------------------------------------------*/
static void
received_announcement(struct announcement *a, const rimeaddr_t *from,
uint16_t id, uint16_t value)
{
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struct collect_neighbor *n;
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/* printf("adv_received %d.%d\n", from->u8[0], from->u8[1]); */
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n = collect_neighbor_list_find(&neighbor_list, from);
if(n == NULL) {
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collect_neighbor_list_add(&neighbor_list, from, value);
} else {
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collect_neighbor_update_rtmetric(n, value);
}
}
/*static const struct neighbor_discovery_callbacks neighbor_discovery_callbacks =
{ adv_received, NULL};*/
HTTPD_CGI_CALL(sensors, "sensors", sensorscall);
HTTPD_CGI_CALL(nodeid, "nodeid", nodeidcall);
HTTPD_CGI_CALL(neighbors, "neighbors", neighborscall);
/*static struct neighbor_discovery_conn conn;*/
static struct announcement announcement;
void
httpd_cgi_init(void)
{
httpd_cgi_add(&sensors);
httpd_cgi_add(&nodeid);
httpd_cgi_add(&neighbors);
announcement_register(&announcement, 31,
received_announcement);
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announcement_set_value(&announcement, 0);
announcement_listen(2);
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collect_neighbor_list_new(&neighbor_list);
collect_neighbor_init();
/* neighbor_discovery_open(&conn, 31,
CLOCK_SECOND * 4,
CLOCK_SECOND * 20,
CLOCK_SECOND * 60,
&neighbor_discovery_callbacks);
neighbor_discovery_start(&conn, 0);*/
}
/*---------------------------------------------------------------------------*/