C++ Socket 多线程

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client.cpp

#include <windows.h>
#include <iostream>
#pragma comment(lib, "ws2_32")

#define LEN          1024
#define TRUE            1
#define FALSE_F           -1
#define OK              1
#define ERROR_R         -1

int main()
{
    int          i=100;
    int             ret;
    char         buf1[LEN];
    char         buf[LEN];
    WORD            wdVersionRequired;
    WSADATA         wsaData;

    memset(buf, 0, sizeof(buf));
    memset(buf1, 0, sizeof(buf1));

wdVersionRequired = MAKEWORD(2, 2); /* 2.2Â°æ±¾ */
WSAStartup(wdVersionRequired, &wsaData);

    while(i--)
    {
        SOCKET              sock;
        sockaddr_in      saServer;

        sock = socket(AF_INET, SOCK_STREAM, 0);
        if (SOCKET_ERROR == sock)
        {
            return FALSE;
        }

     memset(&saServer, 0, sizeof(saServer));
     saServer.sin_family = AF_INET;
     saServer.sin_addr.S_un.S_addr = inet_addr("192.168.2.80");
     saServer.sin_port = htons(8066);

     if(connect(sock, (const sockaddr*)&saServer, sizeof(sockaddr)) != 0)
     {
     printf("connect error/n");
     }

memset(buf, 0, sizeof(buf));
strcpy(buf, "hello world");

        if(0 == send(sock, buf, strlen(buf), 0))
        {
            printf("send error/n");
            break;
        }
        ret = recv(sock, buf1, sizeof(buf1), 0);

        buf1[ret]='/0';
        printf("buf1: %s/n/n", buf1);
     closesocket(sock);
    }

WSACleanup();
return 1;
}

================================================
/*******************************
server.cpp
********************************/

#include <iostream>
#include <winsock2.h>
#pragma comment(lib, "ws2_32")

#define LEN          1024
#define OK              1
#define ERROR_R         -1
#define FALSE           0
#define TRUE            1

DWORD WINAPI AnswerThread(LPVOID lparam)
{

    int                 err;
    char                buf[32]="";
    char                recvbuf[32]="yes receive!!";
    SOCKET              ClientSocket=(SOCKET)(LPVOID)lparam;

// memset(recvbuf, 0, sizeof(recvbuf));
memset(buf, 0, sizeof(buf));

    err = recv(ClientSocket, buf, sizeof(buf), 0);
    send(ClientSocket, recvbuf, strlen(recvbuf), 0);
    buf[err]='/0';
    printf("revc: %s/n", buf);
    closesocket(ClientSocket);
    return OK;
}

int main()
{
    int        err;
    SOCKET       sock;
    SOCKET       sClient;
    DWORD               dwThreadId;
    WORD                wdVersionRequired;
    HANDLE              hThread;
    WSADATA             wsaData;
    sockaddr_in         saServer, cli_addr;
    int                 len = sizeof(cli_addr);

wdVersionRequired = MAKEWORD(2, 2); //³ÌÐòÒªÊ¹ÓÃ2.2°æ±¾
//×¢Òâº¯Êý·µ»ØÖµ£¬0±íÊ¾Õý³£
if ((err = WSAStartup(wdVersionRequired, &wsaData)) != 0)// ³õÊ¼»¯WinSock¿â¡£
return FALSE;

if ((sock = socket(AF_INET, SOCK_STREAM, 0)) == -1)
    {
   printf(" create socket error/n");
    }

saServer.sin_family = AF_INET;
saServer.sin_addr.S_un.S_addr = inet_addr("192.168.2.80");
saServer.sin_port = htons(8066);

if ((err = bind(sock, (const sockaddr *)&saServer, sizeof(sockaddr)))!= 0)
    {
        printf("failed bind/n");
    }

if ((err = listen(sock, 100)) != 0)//listen()¼àÌý
    {
        printf("failed listen/n");
    }

    while(1)
    {
        sClient = accept(sock, (struct sockaddr*)&cli_addr, &len);
        Sleep(1000);
        hThread=CreateThread(NULL,NULL, AnswerThread,(LPVOID)sClient, 0, &dwThreadId);
        if(hThread==NULL)
            printf("CreatThread AnswerThread() failed./n");
        else
            printf("CreateThread OK./n");
    }

closesocket(sock);
WSACleanup();

return TRUE;
}