ubuntu环境下实现 多线程的socket(tcp) 通信

改改就是个小型局域网聊天

服务器端：

 // File Name: process_server.c
 // Author: jiujue
 // Created Time: 2019年03月10日 星期日 20时29分18秒

 #include<stdio.h>
 #include<string.h>
 #include<stdlib.h>
 #include<time.h>
 #include<math.h>
 #include <unistd.h>
 #include <sys/socket.h>
 #include <ctype.h>
 #include <sys/types.h>
 #include <arpa/inet.h>
 #include <signal.h>
 #include <sys/wait.h>
 #include <errno.h>
 #include <pthread.h>

 typedef struct sock_info
 {
     int m_fd;
     pthread_t m_pthid;
     struct sockaddr_in m_addr;

 }Sock_info;

 void* works(void* arg)
 {
     Sock_info *c_info = (Sock_info*)arg;

     //obtain client info
     int client_port = ntohs(c_info->m_addr.sin_port);
     char client_Ip[];

     socklen_t buf_len = sizeof(client_Ip);

     inet_ntop(AF_INET, (void*)&c_info->m_addr.sin_addr.s_addr,client_Ip,buf_len);

     printf("\t\t\t\t Ip %s, port %d,connect successful\n",client_Ip,client_port);

     while()
     {
         char buf[] = {};
         int read_len = read(c_info->m_fd, buf, sizeof(buf));
         if(read_len > )
         {
             buf[read_len+]='\n';
             printf("->-> Obtain if of ,Ip %s, port %d, send info: %s\n",client_Ip,client_port,buf);
             write(c_info->m_fd,buf,strlen(buf));
         }
         else if( == read_len)
         {
             printf("\t\t\t\t Ip %s, port %d, disconnect\n",client_Ip,client_port);
             break;
         }
         else if(- == read_len)
         {
             perror("read error");
             exit();
         }
     }

     return NULL;
 }

 int main(int argc, const char* argv[])
 {
     if(argc < )
     {
         printf("eg: ./app IP Port\n");
         exit();
     }
     short port = atoi(argv[]);

     int lfd = socket(AF_INET, SOCK_STREAM, );
     if(- == lfd)
     {
         perror("socket error");
         exit();
     }

     struct sockaddr_in serv;
     serv.sin_port = htons(port);
     serv.sin_family = AF_INET;
     inet_pton(AF_INET, argv[], &serv.sin_addr.s_addr);

     int res = bind(lfd, (struct sockaddr *)&serv, sizeof(serv));
     if(- == res)
     {
         perror("bind error");
         exit();
     }

     res = listen(lfd, );
     if(- == res)
     {
         perror("listen error");
         exit();
     }

     while()
     {
         printf("\a Wait accepting...\n");
         struct sockaddr_in client_add;

         socklen_t len = sizeof(client_add);

         int cfd = accept(lfd,(struct sockaddr*)&client_add, &len); 

         while(- == cfd && cfd == EINTR)
         {
             cfd = accept(lfd,(struct sockaddr*)&client_add, &len);
         }

         // supply son pthread info
         Sock_info* s_info =(Sock_info*)malloc(sizeof(Sock_info));

         s_info->m_fd = cfd;
         s_info->m_addr = client_add;

         int res = pthread_create(&s_info->m_pthid, NULL, works, (void*)s_info);
         if(res == -)
         {
             perror("pthread_creat error");
             exit();
         }
         pthread_detach(s_info->m_pthid);

     }

     close(lfd);
     return  ;
 }

客户端：

 // File Name: socket_client.c
 // Author: jiujue
 // Created Time: 2019年03月09日 星期六 13时00分05秒

 #include<stdio.h>
 #include<string.h>
 #include<stdlib.h>
 #include<time.h>
 #include<math.h>
 #include <unistd.h>
 #include <sys/socket.h>
 #include <arpa/inet.h>

 int main(int argc, const char* argv[])
 {

     if(argc < )
     {
         printf("eg: ./app Ip Port\n");
         exit();
     }
     int port = atoi(argv[]);

     int fd = socket(AF_INET, SOCK_STREAM, );
     if(- == fd)
     {
         perror("socket error");
         exit();
     }

     struct sockaddr_in serv;

     serv.sin_port =  htons(port);
     serv.sin_family = AF_INET;
     inet_pton(AF_INET, argv[], &serv.sin_addr.s_addr);

     socklen_t len = sizeof(serv);
     int res = connect(fd,(struct sockaddr *) &serv, len);
     if(- == res)
     {
         perror("connect error");
         exit();
     }
     printf("Connectt server successful!!\n");

     while()
     {
         printf("Please input string\n>>");
         char buf[];
         fgets(buf,sizeof(buf),stdin);
         write(fd, buf, strlen(buf));
         printf("send buf: %s\n",buf);
         len = read(fd,buf,(buf));
         if(len > )
         {
             printf("Recv buf: %s\n",buf);
         }else if(len == )
         {
             printf("Serer disconnect \n");
             break;
         }
         else if(- == len)
         {
             perror("Read errror");
             exit();
         }else
         {
             printf("I no now\n");
         }
     }

     close(fd);
     return  ;
 }

结语：有问题欢迎提在下方 ，本人在校学生，时间较为充裕， 有时间会回复的。

/* 原创文章 转载请附上原链接: https://www.cnblogs.com/jiujue/p/10513859.html   */