基于ARM的智能灯光控制系统（8）设备添加
设备添加页面
网页显示头文件（html.h）
#include <stdio.h>
#define ERR_SHM 1
#define ERR_MSG 2
#define ERR_REG 3
void html_head()
{
printf("Content-type:text/html\r\n\r\n");
printf("<html>");
printf("<head><title>SL1200智能灯光控制系统</title>");
printf("<link href=\"../empty_files/bootstrap.css\" rel=\"stylesheet\">");
printf("<link href=\"../empty_files/font-awesome.css\" rel=\"stylesheet\">");
printf("<link href=\"../empty_files/custom-styles.css\" rel=\"stylesheet\">");
}
void html_refresh(char* second, char* url)
{
printf("<META HTTP-EQUIV=\"REFRESH\" CONTENT=\"%s;URL=%s\">",second, url);
}
void html_title()
{
printf("</head><body><div id=\"wrapper\">");
...
}
void html_nav()
{
printf("<!--/. NAV TOP -->");
...
}
void html_table_title(char* title,char * title1,char *title2)
{
...
}
void html_table_head(int len, char argv[][10],char* title)
{
...
}
void html_table_end()
{
printf("</tbody></table></div></div></div><!--End Advanced Tables --></div></div>");
}
void html_end()
{
...
printf("</body></html>");
}
void html_return_info(char* info)
{
printf("<div class=\"row\"><div class=\"col-md-12\">");
printf("<div class=\"panel panel-default\"><div class=\"panel-heading\">");
printf("设置结果</div><div class=\"panel-body\"> <div class=\"alert alert-success\">");
printf("<strong>%s</strong>", info);
printf("</div></div></div></div></div>");
}
void html_return_show(int ret)
{
if(ret == 0){
html_return_info("设置完成,返回界面.");
}else{
switch(ret){
case ERR_SHM:
html_return_info("共享内存错误.");
break;
case ERR_MSG:
html_return_info("区域记录己满.");
break;
case ERR_REG:
html_return_info("区域记录己满.");
break;
default:
html_return_info("设置失败,未知错误.");
break;
}
}
}
进程通信头文件（ipc.h）
#ifndef __IPC_H_
#define __IPC_H_
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ipc.h>
#include <sys/msg.h>
#include <sys/shm.h>
#define CMD_GET 1
#define CMD_SET 2
int get_msgid(void)
{
int id = -1;
id = msgget((key_t)1234,0666|IPC_CREAT);
return id;
}
void* set_web_shm(void)
{
int shmid;
void* shmaddr=(void*)0;
if((shmid=shmget((key_t)1122,sizeof(struct sys_all),0666|IPC_CREAT))<0){
return NULL;
}else{
if((shmaddr=shmat(shmid,(void*)0,0))==(char *)-1){
return NULL;
}
}
return shmaddr;
}
int msg_send(int msgid,int cmd_da)
{
struct st_msg_req cmd;
cmd.index = WEB_UPDATE_SMG_INDEX;
cmd.req = cmd_da;
if(msgsnd(msgid,(void*)&cmd,1,0)==-1)
return -1;
return 0;
}
#endif设备添加页面程序（dev_add.c）
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "html.h"
#include "config.h"
#include "ipc.h"
void table_tr(char* name,char type,int checked)
{
char type_id[2]="0";
type_id[0] = type + '0';
printf("<tr ><td><input type=\"text\" name=\"name_%s\" value=\"%s\"> </td>",type_id,name);
//显示id
printf("<td><input type=\"text\" name=\"%s\" value=\"SL_M_%s\"></td><td>",type_id,type_id);
switch(type)
{
case 1:
printf("主控制器");
break;
case 2:
printf("分控制器");
break;
case 3:
printf("光线感应");
break;
case 4:
printf("人体感应");
break;
case 5:
printf("声音感应");
break;
case 6:
case 7:
printf("灯光设备");
break;
case 8:
printf("网络设备");
break;
default:
break;
}
if(checked==1)
{
printf("</td><td class=\"center\"><input type=\"radio\" name=\"join_sta%s\" value=\"1\" checked=\"checked\">连通<input type=\"radio\" name=\"join_sta%s\" value=\"0\">断开</td>",type_id,type_id);
}else{
printf("</td><td class=\"center\"><input type=\"radio\" name=\"join_sta%s\" value=\"1\" >连通<input type=\"radio\" name=\"join_sta%s\" value=\"0\" checked=\"checked\">断开</td>",type_id,type_id);
}
printf("<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[5][10];
if((msgid=get_msgid()) < 0){
ret = ERR_MSG;
}
if(msg_send(msgid,CMD_GET)==0){
if((shm_dev=(struct sys_all*)set_web_shm())==NULL){
ret = ERR_SHM;
}
}
html_head();
html_title();
html_nav();
html_table_title("设备添加" , "设备设置" , "设备添加" );
if(ret != 0){
html_return_show(ret);
html_end();
return 0;
}
printf("<form method=\"get\" action=\"/cgi-bin/dev_add_post.cgi\">");
strcpy(item_name[0],"设备名称");
strcpy(item_name[1],"节点信息");
strcpy(item_name[2],"设备类型");
strcpy(item_name[3],"连接状态");
strcpy(item_name[4],"提交操作");
html_table_head(5,item_name,"设备列表");
for(i=0;i<shm_dev->count_dev;i++){
table_tr(shm_dev->sys_dev[i].name,shm_dev->sys_dev[i].node.type,
shm_dev->sys_dev[i].join_sta);
}
html_table_end();
printf("</form>");
html_end();
return 0;
}页面处理程序（dev_add_post.c）
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "getvalue.h"
#include "html.h"
#include "config.h"
#include "ipc.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;
set_env(getenv("REQUEST_METHOD"),
getenv("CONTENT_LENGTH"),
getenv("QUERY_STRING"));
html_head();
html_refresh("3","/cgi-bin/dev_add.cgi");
html_title();
html_nav();
html_table_title("设备添加" , "设备设置" , "设备添加" );
if((shm_dev=(struct sys_all*)set_web_shm())==NULL){
ret = ERR_SHM;
}else{
for(i=0;i<shm_dev->count_dev;i++){
//根据配置文件实时数据，动态读取变量名join_sta+id
type_id[0] = shm_dev->sys_dev[i].node.type + '0';
strcpy(val_name,"join_sta");
strcat(val_name,type_id);
val = get_value(val_name);
shm_dev->sys_dev[i].join_sta = val[0]-'0';
strcpy(val_name,"name_");
strcat(val_name,type_id);
val = get_value(val_name);
strcpy(shm_dev->sys_dev[i].name,val);
}
}
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;
}
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