main.c

基于嵌入式web服务器的web应用层代码

/*********************************************************************
    Filename:       main.c
    Revised:        $Date: 2007-12-11 09:48:27 -0800 $
    Revision:       $Revision: 10194 $
    
    Description:    
            
    Notes:  

*********************************************************************/

/*********************************************************************
 * INCLUDES
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <unistd.h>
#include <sys/types.h>
#include <termios.h> 

#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/sem.h>
/*
#include <semaphore.h>
#include <pthread.h>
*/
#include "analyseframe.h"
#include "uart.h"
#include "web.h"



/*********************************************************************
 * GLOBAL VARIABLES
 */
/*



/*********************************************************************
 * LOCAL VARIABLES
 */



/*********************************************************************
 * EXTERNAL VARIABLES
 */

 
 
 
 
 
/*********************************************************************
 * FUNCTIONS
 */ 

int main(void)
{
	char *data;
	int value;
	unsigned short int p = 1;
	unsigned short int i = 0x1234;

	display_web_head();
	if ((data = getenv("QUERY_STRING")) == NULL)
	{
		printf("<p>data error</p>");
		exit(1);	
	}
	else
	{
		strcpy(query_string_data, data);
		operate_query_string(query_string_data);
	}
	display_web_tail();
		

	if ((sem_id = semget(ftok("/tmp", 'a'), 1, IPC_CREAT | IPC_EXCL | 0666)) < 0)
	{
		perror("semget");
		if ((sem_id = semget(ftok("/tmp", 'a'), 1, IPC_CREAT | 0666)) < 0)
		{
			perror("semget");
			exit(1);
		}
		else
		{
#ifdef DEBUG_MODE
	printf("<p>exist semaphore success!\n");
#endif
		}
	}
	else
	{
#ifdef DEBUG_MODE
	printf("<p>creat semaphore success!\n");
#endif
		port_sem.val = 1;
		semctl(sem_id, 0, SETVAL, port_sem); 
	}
#ifdef DEBUG_MODE
	value = semctl(sem_id, 0, GETVAL, 0);
	printf("value of semaphore is: %d\n", value);
#endif	
	
	if (port_open() < 0)
	{
		printf("<p>Failed to open ttyS0...\n");
		exit(1);
	}
#ifdef DEBUG_MODE
	printf("<p>Succeed to open ttyS0...\n");
#endif
	frame_process();
	port_close();

#ifdef DEBUG_MODE		
	printf("<p>p = %d\n", *(char *)&p);
#endif
	exit(0);	
}