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Import of the contiki-2.x development code from the SICS internal CVS server

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adamdunkels 2006-06-17 22:41:10 +00:00
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/*
* Copyright (c) 2004, 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.
*
* Author: Adam Dunkels <adam@sics.se>
*
* $Id: main.c,v 1.1 2006/06/17 22:41:35 adamdunkels Exp $
*/
/**
* \file
* This file implements the main function of the Contiki distributed
* sensor network simulation environment.
* \author Adam Dunkels <adam@sics.se>
*
* When starting, each sensor node is created as its own process. The
* sensor node processes communicates with the starting process using
* named pipes. These pipes carry messages such as data packets and
* configuration and statistics information requests.
*/
#include "contiki-net.h"
#include "display.h"
#include "contiki-main.h"
#include "nodes.h"
#include "ether.h"
#include "node.h"
#include "net/ethernode.h"
#include <sys/types.h>
#include <unistd.h>
#include <signal.h>
#include <stdlib.h>
#include <stdio.h>
#include <sys/wait.h>
static int main_process = 0;
/*---------------------------------------------------------------------------*/
static void
sigchld_handler(int sig)
{
int status;
pid_t pid;
struct nodes_node *node;
if(!main_process) {
return;
}
pid = waitpid(-1, &status, WNOHANG);
if(WIFSIGNALED(status) &&
WTERMSIG(status) == SIGSEGV) {
node = nodes_find_pid(pid);
if(node == NULL) {
printf("A Contiki node crashed, but it wasn't even started by the system. Something weird is going on!\n");
} else {
printf("Contiki node at (%d, %d) crashed - Segmentation fault\n",
node->x, node->y);
}
}
}
/*---------------------------------------------------------------------------*/
static void
idle(void)
{
int events;
do {
ether_server_poll();
display_tick();
display_redraw();
ether_tick();
events = process_run();
if(events > 0) {
printf("events %d\n", events);
}
} while(events > 0);
}
/*---------------------------------------------------------------------------*/
static void
start_node(int x, int y, int b)
{
pid_t pid;
static unsigned short port = NODES_PORTBASE;
pid = fork();
if(pid == 0) {
/* This is the sensor process. */
main_process = 0;
srandom(getpid());
usleep(1000 * ((random() & 0x0f) << 6) );
node_init(port - NODES_PORTBASE, x, y, b);
ethernode_init(port);
contiki_main(b);
/* NOTREACHED */
}
/* printf("Adding sensor %d at (%d,%d)\n", pid, x, y);*/
main_process = 1;
nodes_add(pid, x, y, port);
++port;
}
/*---------------------------------------------------------------------------*/
void
main_add_node(int x, int y)
{
start_node(x, y, 0);
}
/*---------------------------------------------------------------------------*/
void
main_add_base(int x, int y)
{
start_node(x, y, 1);
}
/*---------------------------------------------------------------------------*/
int
main(int argc, char **argv)
{
/* system("ifconfig tap0 inet 192.168.250.1");*/
/* system("route delete 172.16.0.0/16");
system("route add 172.16.0.0/16 192.168.250.2");*/
nodes_init();
atexit(nodes_kill);
init();
ether_server_init();
#if 0
while(1) {
ether_server_poll();
ether_tick();
process_run();
usleep(100);
}
#endif /* 0 */
if(argc > 1 && strcmp(argv[1], "-q") == 0) {
display_init(idle, 50, 0);
} else {
display_init(idle, 50, 1);
}
display_redraw();
signal(SIGCHLD, sigchld_handler);
display_run();
return 0;
argv = argv;
argc = argc;
}
/*-----------------------------------------------------------------------------------*/
char *arg_alloc(char size) {return NULL;}
void arg_init(void) {}
void arg_free(char *arg) {}
/*-----------------------------------------------------------------------------------*/
char *shell_prompt_text = "sensor-router> ";
/*-----------------------------------------------------------------------------------*/
#include <sys/time.h>
static signed long drift = 0;
void
clock_delay(unsigned int num)
{
usleep(num * 100);
}
void
clock_set_time(clock_time_t time, clock_time_t ftime)
{
drift = time - node_time();
}
clock_time_t
clock_time(void)
{
return drift + node_time();
}
/*-----------------------------------------------------------------------------------*/
unsigned long
clock_seconds(void)
{
return node_seconds();
}
/*-----------------------------------------------------------------------------------*/
void
uip_log(char *m)
{
u16_t addr[2];
uip_gethostaddr(addr);
printf("uIP log at %d.%d.%d.%d: %s\n",
uip_ipaddr1(addr),
uip_ipaddr2(addr),
uip_ipaddr3(addr),
uip_ipaddr4(addr),
m);
fflush(NULL);
}
void
configurator_send_config(u16_t *addr, unsigned long seconds)
{
printf("Configurator: address %d.%d.%d.%d, seconds %lu\n",
uip_ipaddr1(addr),
uip_ipaddr2(addr),
uip_ipaddr3(addr),
uip_ipaddr4(addr),
seconds);
}
void
system_log(char *m)
{
printf("%s", m);
}
/*void tr1001_drv_set_slip_dump(int c)
{
}*/