多线程socket

#include <stdio.h>  
#include <Winsock2.h>  
#pragma comment (lib, "ws2_32")  
#include <thread>  
  
void sendFuction(SOCKET &sockConn)  
{  
    while (true)  
    {  
        char buffer[100];  
        char mymsg[100];  
        gets(mymsg);  
        sprintf_s(buffer,100,"server say:\n%s",mymsg);  
        send(sockConn, buffer, strlen(buffer)+sizeof(char), NULL);  
    }  
      
}  
void recvFunction(SOCKET& sockClient)  
{  
    while (true)  
    {  
        char recvBuf[50];  
        recv(sockClient,recvBuf,50,0);  
        printf("%s\n",recvBuf);  
    }  
  
}  
  
void main()  
{  
    //1：加载套接字库，创建套接字(WSAStartup()/socket())；  
    WORD wVersionRequested;  
    WSADATA wsaData;  
    int err;  
  
    wVersionRequested = MAKEWORD( 1, 1 );  
  
    err = WSAStartup( wVersionRequested, &wsaData );  
    if ( err != 0 ) {  
        return;  
    }  
  
    if ( LOBYTE( wsaData.wVersion ) != 1 ||  
        HIBYTE( wsaData.wVersion ) != 1 ) {  
            WSACleanup( );  
            return;  
    }  
    SOCKET sockSrv=socket(AF_INET,SOCK_STREAM,0);  
  
    //2：绑定套接字到一个IP地址和一个端口上(bind())；  
    SOCKADDR_IN addrSrv;  
    addrSrv.sin_addr.S_un.S_addr=htonl(INADDR_ANY);  
    addrSrv.sin_family=AF_INET;  
    addrSrv.sin_port=htons(6000);  
  
    bind(sockSrv,(SOCKADDR*)&addrSrv,sizeof(SOCKADDR));  
  
    //3：将套接字设置为监听模式等待连接请求(listen())；  
    listen(sockSrv,5);  
  
    //4：请求到来后，接受连接请求，返回一个新的对应于此次连接的套接字(accept())；  
    SOCKADDR_IN addrClient;  
    int len=sizeof(SOCKADDR);  
    while(1)  
    {  
        SOCKET sockConn=accept(sockSrv,(SOCKADDR*)&addrClient,&len);  
        char sendBuf[50];  
        sprintf(sendBuf,"Welcome %s to here!",inet_ntoa(addrClient.sin_addr));  
        //5：用返回的套接字和客户端进行通信(send()/recv())  
        send(sockConn,sendBuf,strlen(sendBuf)+1,0);  
        char recvBuf[50];  
        recv(sockConn,recvBuf,50,0);  
        printf("%s\n",recvBuf);  
  
        //多线程  
        std::thread sendThread(sendFuction,sockConn);  
        sendThread.detach();  
  
        std::thread recvThread(recvFunction,sockConn);  
        recvThread.detach();  
          
  
        //6：返回，等待另一连接请求；  
        //7：关闭套接字，关闭加载的套接字库(closesocket()/WSACleanup())。  
        //closesocket(sockConn);  
    }  
  
}  

#include <stdio.h>  
#include <Winsock2.h>  
#pragma comment (lib, "ws2_32")   
#include <thread>  
void sendFuction(SOCKET &sockConn)  
{  
    while (true)  
    {  
        char buffer[100];  
        char mymsg[100];  
        gets(mymsg);  
        sprintf_s(buffer,100,"clien say:\n%s",mymsg);  
        send(sockConn, buffer, strlen(buffer)+sizeof(char), NULL);  
    }  
  
}  
void recvFunction(SOCKET& sockClient)  
{  
    while (true)  
    {  
        char recvBuf[50];  
        recv(sockClient,recvBuf,50,0);  
        printf("%s\n",recvBuf);  
    }  
      
}  
void main()  
{  
    //1：加载套接字库，创建套接字(WSAStartup()/socket())；  
    WORD wVersionRequested;  
    WSADATA wsaData;  
    int err;  
  
    wVersionRequested = MAKEWORD( 1, 1 );  
  
    err = WSAStartup( wVersionRequested, &wsaData );  
    if ( err != 0 ) {  
        return;  
    }  
  
    if ( LOBYTE( wsaData.wVersion ) != 1 ||  
        HIBYTE( wsaData.wVersion ) != 1 ) {  
            WSACleanup( );  
            return;  
    }  
    SOCKET sockClient=socket(AF_INET,SOCK_STREAM,0);  
  
    //2：向服务器发出连接请求(connect())；  
    SOCKADDR_IN addrSrv;  
    addrSrv.sin_addr.S_un.S_addr=inet_addr("127.0.0.1");  
    addrSrv.sin_family=AF_INET;  
    addrSrv.sin_port=htons(6000);  
    connect(sockClient,(SOCKADDR*)&addrSrv,sizeof(SOCKADDR));  
  
    //3：和服务器端进行通信(send()/recv())；  
    send(sockClient,"hello",strlen("hello")+1,0);  
    char recvBuf[50];  
    recv(sockClient,recvBuf,50,0);  
    printf("%s\n",recvBuf);  
  
  
    std::thread sendThread(sendFuction,sockClient);  
    sendThread.detach();  
  
    std::thread recvThread(recvFunction,sockClient);  
    recvThread.detach();  
  
    //4：关闭套接字，关闭加载的套接字库(closesocket()/WSACleanup())。  
    //closesocket(sockClient);  
    //WSACleanup();  
    while (true)  
    {  
  
    }  
}