windows环境下C语言多线程实现网络编程,多人聊天室,

/***********************

服务器

************************/

#include "stdafx.h"

#include

#include

#include

#include "my_typedef.h"

#pragma comment(lib,"ws2_32.lib")

#define L_MAX (255)

#define C_MAX (100)

DWORD WINAPI ThreadProc( /* 线程函数*/ LPVOID lpParam

);

HANDLE tThread_Client[C_MAX] = {NULL};

LNode *pHead;

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

{

//初始化WSA

WORD sockVersion = MAKEWORD(2,2);

WSADATA wsaData;

if(WSAStartup(sockVersion, &wsaData)!=0)

{

return 0;

}

//创建套接字

SOCKET slisten = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);

if(slisten == INV ALID_SOCKET)

{

printf("socket error !");

return 0;

}

//绑定IP和端口

sockaddr_in sin;

sin.sin_family = AF_INET;

sin.sin_port = htons(8888);

sin.sin_addr.S_un.S_addr = INADDR_ANY;

if(bind(slisten, (LPSOCKADDR)&sin, sizeof(sin)) == SOCKET_ERROR)

{

printf("bind error !");

}

//开始监听

if(listen(slisten, C_MAX) == SOCKET_ERROR)

{

printf("listen error !");

return 0;

}

sockaddr_in remoteAddr;

int nAddrlen = sizeof(remoteAddr);

SOCKET sClient = NULL;

SOCKET Socket_Sclient = NULL;

/* 创建一个链表存放已经连接的客户端*/

pHead = (LNode*)malloc(sizeof(LNode));

pHead->pNext = NULL;

pHead->sClient = NULL;

/*循环等待客户端连接，并在连接后创建一个SOCKET和线程*/

while (true)

{

int i = 0;

printf("等待连接...\n");

sClient = accept(slisten, (SOCKADDR *)&remoteAddr, &nAddrlen);

if(sClient == INV ALID_SOCKET)

{

printf("accept error !");

continue;

}

else

{

Socket_Sclient = sClient;

add_Element(pHead,sClient);

tThread_Client[i] = CreateThread(NULL, 0, ThreadProc,(LPVOID)Socket_Sclient,

printf("接受到一个连接：%s \r\n", inet_ntoa(remoteAddr.sin_addr));

i++;

}

}

WSACleanup();

return 0;

}

DWORD WINAPI ThreadProc(

LPVOID lpParam

)

{

char Rev_Data[L_MAX] = {0};

char Send_Data[L_MAX] = {0};

//接收数据

while( strcmp(Rev_Data,"exit") != 0)

{

int ret = recv((SOCKET)lpParam, Rev_Data, L_MAX, 0);

LNode *p = pHead->pNext;

if(ret > 0)

{

Rev_Data[ret] = 0x00;

//发送数据

strcpy(Send_Data,Rev_Data);

if(!strcmp(Send_Data,"exit"))

{

printf("一个客户端已经断开连接!\n");

}

while (p != NULL )

{

if (p->sClient != (SOCKET)lpParam)

{

send(p->sClient, Send_Data, strlen(Send_Data), 0);

p = p->pNext;

}

else

{

p = p->pNext;

}

}