智能家居2 -- 实现网络控制模块

这一模块的思路和前面的语言控制模块很相似，差别只是调用TCP 去控制

废话少说，放码过来

增添/修改代码

socket_interface.c

#include <pthread.h>

#include "socket_interface.h"
#include "control.h"
#include "socket.h"
#include "mq_queue.h"
#include "global.h"
#include <netinet/tcp.h> // 设置 tcp 心跳 的参数

static int s_fd = -1;

static int  tcpsocket_init(void)
{
    s_fd = socket_init(IPADDR,IPPORT);
    //return s_fd;
    return -1;
}

static void tcpsocket_final(void) 
{
  close(s_fd);
  s_fd = -1;
}

static void* tcpsocket_get(void *arg)
{
  
    int c_fd = -1;
    unsigned char buffer[BUF_SIZE];
    int ret = -1;
    struct sockaddr_in c_addr;
    mqd_t mqd = -1;
    ctrl_info_t * ctrl_info = NULL; 
    int keepalive = 1;    // 开启TCP_KEEPALIVE选项
    int keepidle = 10;    // 设置探测时间间隔为10秒
    int keepinterval = 5; // 设置探测包发送间隔为5秒
    int keepcount = 3;    // 设置探测包发送次数为3次

   

    pthread_detach(pthread_self()); // 和主线程(他的父线程)分离

    printf("%s|%s|%d   s_fd = %d\n", __FILE__, __func__, __LINE__, s_fd);
   
    if(-1 == s_fd) // 判断是否初始化成功
    {
     s_fd = tcpsocket_init();
     if(-1 == s_fd)
     {
      printf("tcpsocket_init error\n");
      pthread_exit(0);
     }

    }

     if(NULL != arg)
        ctrl_info = (ctrl_info_t*)arg;
     if(NULL != ctrl_info)
         mqd = ctrl_info->mqd;      
    
    
    if((mqd_t)-1 == mqd)
    {
       pthread_exit(0);  
    }

    memset(&c_addr, 0, sizeof(struct sockaddr_in));

    int clen = sizeof(struct sockaddr_in);

    printf("%s thread start\n", __func__);
    while (1) // 一直等待接收
    {
        c_fd = accept(s_fd, (struct sockaddr *)&c_addr,  // 获得新的客户端 描述符

       if (c_fd == -1)
        {
            continue;
        }

        ret = setsockopt(c_fd, SOL_SOCKET, SO_KEEPALIVE, (void *)&keepalive,sizeof(keepalive));
        if(-1 == ret){
          perror("setsockopt");
          break;
        }
       
        ret = setsockopt(c_fd, IPPROTO_TCP, TCP_KEEPIDLE, (void *)&keepidle, sizeof(keepidle));
          if(-1 == ret){
          perror("setsockopt");
          break;
        }
             ret = setsockopt(c_fd, IPPROTO_TCP, TCP_KEEPINTVL, &keepinterval,
                         sizeof(keepinterval));
          if(-1 == ret){
          perror("setsockopt");
          break;
        }
         ret = setsockopt(c_fd, IPPROTO_TCP, TCP_KEEPCNT, &keepcount,
                         sizeof(keepcount)); 
             if(-1 == ret){
          perror("setsockopt");
          break;
        }

        // 打印调试信息
        printf("%s | %s | %d: Access a connection from %s:%d\n", __FILE__, __func__, __LINE__, inet_ntoa(c_addr.sin_addr), ntohs(c_addr.sin_port));

    

        while (1)
        {
            memset(buffer, 0, BUF_SIZE);
            ret = recv(c_fd, buffer, BUF_SIZE, 0); // 等待接收
            // 将接收到数据打印出来
               printf("%s|%s|%d,  0x%x,0x%x,0x%x,0x%x,0x%x,0x%x\n",__FILE__,__func__,__LINE__,buffer[0],buffer[1],buffer[2],buffer[3],buffer[4],buffer[5]);
       
            if (ret > 0)
            {
            if(buffer[0] == 0xAA && buffer[1] == 0x55 
                 &&buffer[4]==0x55 && buffer[5]==0xAA)
            {
                  printf("%s|%s|%d,  send: 0x%x,0x%x,0x%x,0x%x,0x%x,0x%x\n",__FILE__,__func__,__LINE__,buffer[0],buffer[1],buffer[2],buffer[3],buffer[4],buffer[5]);
       
              send_msg(mqd,buffer,ret); 
            }
                
            }
            else if (0 == ret || -1 == ret) // 没读到，or 读到空
            {
                break;
            }
        }

      
    }

    pthread_exit(0);

}


struct  control tcpsocket_control ={
    .control_name = "tcpsocket",
    .init = tcpsocket_init,
    .final = tcpsocket_final,
    .get = tcpsocket_get,
    .set = NULL, //不需要实现 设置
    .next = NULL
};


struct control *add_tcpsocket_to_ctrl_list(struct control *phead)
{
  //头插法实现 添加链表节点
  struct control *pnew = NULL;
 
  
  if(NULL == phead)
  {
    phead = &tcpsocket_control; // 直接传入我们的 voice_control
  }

  else// 头结点非空 - 链表有数据
  {
   tcpsocket_control.next = phead; //把新的节点的next指向头结点
   phead = &tcpsocket_control; // 让心节点成为头结点
  }

  return phead;

};

socket_interface.h

#ifndef ___SOCKET_INTERFACE_H___
#define ___SOCKET_INTERFACE_H___

#include "control.h"
struct control *add_tcpsocket_to_ctrl_list(struct control *phead);



#endif

修改的main.c

#include <stdio.h>
#include <pthread.h>
#include <stdlib.h>

#include "control.h"
#include "mq_queue.h"
#include "voice_interface.h"
#include "socket_interface.h"
#include "global.h"

// msg_queue_create



int main() {
    pthread_t thread_id;
    struct control *control_phead = NULL;
    struct control *pointer = NULL;
    ctrl_info_t *ctrl_info = NULL;
    ctrl_info = (ctrl_info_t *)malloc(sizeof(ctrl_info_t));
    ctrl_info->ctrl_phead = NULL;
    ctrl_info->mqd = -1;

    int node_num = 0; // 统计节点数

    // 创建消息队列
    ctrl_info->mqd = msg_queue_create();
    if(-1 == ctrl_info->mqd)// 创建消息队列失败
    {
        printf("%s|%s|%d, mqd= %d\n",__FILE__,__func__,__LINE__,ctrl_info->mqd);
        return -1;
    }
    
    ctrl_info->ctrl_phead = add_voice_to_ctrl_list(ctrl_info->ctrl_phead);
    ctrl_info->ctrl_phead = add_tcpsocket_to_ctrl_list(ctrl_info->ctrl_phead);
    //ctrl_info->ctrl_phead = add_fire_to_ctrl_list(ctrl_info->ctrl_phead);
  

    pointer = ctrl_info->ctrl_phead;

    while(NULL!=pointer) // 对所有控制结构体初始化，并且统计节点数
    {
        if(NULL != pointer->init)
        {
             printf("%s|%s|%d   control_name = %s\n",__FILE__,__func__,__LINE__,pointer->control_name);
             pointer->init();
        }
        pointer = pointer->next;
        node_num++; // 统计节点数
    }

    // 根据节点的总数 --> 创建对应数目的线程
    pthread_t *tid = (pthread_t *)malloc(sizeof(int) *node_num);
    pointer = ctrl_info->ctrl_phead;

    for(int i=0;i<node_num;++i)//遍历所有节点
    {
       if(NULL != pointer->get){
          printf("%s|%s|%d   control_name = %s\n",__FILE__,__func__,__LINE__,pointer->control_name);
          pthread_create(&tid[i],NULL,(void *)pointer->get,(void *)ctrl_info); // 传入这个结构体参数，方便同时调用多组线程里面的API
       }
        pointer = pointer->next;
    }
    
     for(int i=0;i<node_num;++i)
     {
     pthread_join(tid[i],NULL);
     }

     for(int i=0;i<node_num;++i)
     {
      if(NULL != pointer->final)
          pointer->final(); // 接打开的使用接口关闭
      pointer = pointer->next;
     }

     msq_queue_final(ctrl_info->mqd);

}

编译执行:

编译:

发送到arm-64平台

scp ./obj/smarthome  orangepi@192.168.1.11:/home/orangepi

执行：

/遇到如下报错 -- 解决:

scp: /home/orangepi/smarthome: Text file busy

 kill之后成功了

bind: Address already in use
 

要解决这个问题，您可以尝试以下步骤：

1. 查找并关闭现有进程：使用 netstat、lsof 或 ss 命令来查找正在监听该端口的进程，并关闭它。

   sudo netstat -tulnp | grep [端口号] 
   # 或者 
   sudo lsof -i :[端口号] 
   # 或者 
   sudo ss -tulnp | grep [端口号]

    

   找到进程ID（PID）后，使用 kill -9 命令来结束该进程。

2. 重启计算机：如果无法确定哪个进程正在使用端口，或者无法结束该进程，您可以考虑重启计算机。

3. 使用不同的端口：如果您只是想要快速测试您的应用程序，并且不关心特定的端口号，您可以尝试使用另一个端口。

TCP验证:

（注意发送格式 16进制）

否则你发送的数据很可能变成这样