基于ARM的智能灯光控制系统总结（18-网页CGI进程之区域管理）

区域管理cgi程序在网页上设定一个区域内所有灯光设备的开关

area_con.c

#include<unistd.h>#include<stdlib.h>
#include<stdio.h>
#include<string.h>
#include<sys/types.h>
#include "html.h"
#include "config.h"
#include "ipc.h"

void table_tr(char * name,char sw,int type_id)
{
	int i;

	printf("<tr><td>%s</td>",name);

	if(sw==1){
		printf("<td class=\"center\"><input type=\"radio\" checked=\"checked\" value=\"1\" name=\"sw_sta%d\">开启<input type=\"radio\" value=\"0\" name=\"sw_sta%d\">关闭</td>",type_id,type_id);
	}else{
		printf("<td class=\"center\"><input type=\"radio\" value=\"1\" name=\"sw_sta%d\">开启<input type=\"radio\" value=\"0\" name=\"sw_sta%d\"  checked=\"checked\">关闭</td>",type_id,type_id);
	}

	printf("<td><input type=\"checkbox\" name=\"flag%d\" value=\"0\">删除区域</td>",type_id);
	printf("</td><td class=\"center\"><button type=\"submit\">设置</button></td></tr>");	
}

int main(int argc, char * argv[])
{
	int ret=0;
	int i,msgid;
	struct sys_all * shm_dev;
	char item_name[4][16];

	if((msgid=get_msgid())<0){
		ret=ERR_MSG;
	}

	if(msg_send(msgid,CMD_GET)==0){
		if(NULL==(shm_dev=(struct sys_all *)set_web_shm())){
			ret=ERR_SHM;
		}
	}

	html_head();
	html_title();
	html_nav();
	html_table_title("区域管理","区域设置","区域管理");
	if(ret!=0){
		html_return_show(ret);
		html_end();
		return 0;
	}

	printf("<form method=\"get\" action=\"/cgi-bin/area_con_post.cgi\">");

	strcpy(item_name[0],"区域名称");
	strcpy(item_name[1],"区域开关");
	strcpy(item_name[2],"区域删除");
	strcpy(item_name[3],"提交操作");

	html_table_head(4,item_name,"区域管理");
	for(i=0;i<MAX_DEV;i++){
		if(shm_dev->sys_area[i].enable_flag==1)
			table_tr(shm_dev->sys_area[i].name,shm_dev->sys_area[i].sw_sta,i);
	}

	html_table_end();
	html_end();
	return 0;	
}

area_con_post.c

#include<unistd.h>#include<stdlib.h>#include<stdio.h>#include<string.h>#include "html.h"#include "config.h"#include "ipc.h"#include "getvalue.h"int main(int argc,char * argv[]){	int ret=0;	char *val=NULL;	char val_name[16];	char type_id[2]="0";	int i,msgid;	struct sys_all * shm_dev;	char buf[32]="";		set_env(getenv("REQUEST_METHOD"),getenv("CONTENT_LENGTH"),getenv("QUERY_STRING"));	html_head();	html_refresh("3","/cgi-bin/area_con.cgi");	html_title();	html_nav();	html_table_title("区域管理","区域设置","区域管理");	if(NULL==(shm_dev=(struct sys_all *)set_web_shm())){		ret=ERR_SHM;	}else{		for(i=0;i<MAX_DEV;i++){			type_id[0]=i+'0';			strcpy(val_name,"sw_sta");			strcat(val_name,type_id);			val=get_value(val_name);			if(val!=NULL){				shm_dev->sys_area[i].sw_sta=val[0]-'0';			}			strcpy(val_name,"flag");			strcat(val_name,type_id);			val=get_value(val_name);			if(val!=NULL){				shm_dev->sys_area[i].enable_flag=val[0]-'0';			}					}	}		if(ret==0){		if((msgid=get_msgid())<0) ret=ERR_MSG;		if(msg_send(msgid,CMD_SET)<0) ret=ERR_MSG;	}	html_return_show(ret);	html_end();	return 0;}