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C++ Socket 一个服务器 多个客户端 （阻塞式）

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服务端
ServerNet.h

#pragma once#include <stdio.h>#include <winsock.h>#include<vector>#include<iterator>#include<iostream>#include <algorithm>#include<map>#include<string>using namespace std;#pragma comment (lib,"ws2_32.lib")SOCKET sockConn;HANDLE bufferMutex;     // 令其能互斥成功正常通信的信号量句柄  vector<SOCKET> clientSocketGroup; DWORD WINAPI WaitAcceptThread(LPVOID IpParameter);DWORD WINAPI RecMsgThread(LPVOID IpParameter);DWORD WINAPI SendMsgThread(LPVOID IpParameter);map<SOCKET,string> m_ipSocket;class CServerNet{private:    SOCKET m_sock;public:    CServerNet(void);    //初始化服务器,返回0表示成功    int Init(const char* address,int port);    //更新数据    void Run();    ~CServerNet(void);};

ServerNet.cpp

#include "ServerNet.h"int CServerNet::Init( const char* address,int port ){    int rlt = 0;    //用于记录错误信息，并输出    int iErrorMsg;    //初始化WinSock    WSAData wsaData;    iErrorMsg = WSAStartup(MAKEWORD(1,1),&wsaData);    if (iErrorMsg != NO_ERROR)    {        //初始化WinSock失败        printf("wsastartup failed with error : %d\n",iErrorMsg);        //WSAGetLastError()        rlt = 1;        return rlt;    }    //创建服务端Socket    m_sock = socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);    if (m_sock == INVALID_SOCKET)    {        //创建Socket异常        printf("socket failed with error : %d\n",WSAGetLastError());        rlt = 2;        return rlt;    }    //声明信息    sockaddr_in serverAddr;    serverAddr.sin_family = AF_INET;    serverAddr.sin_port = port;    serverAddr.sin_addr.s_addr = inet_addr(address);    //绑定    iErrorMsg = bind(m_sock,(sockaddr*)&serverAddr,sizeof(serverAddr));    if (iErrorMsg < 0)    {        //绑定失败        printf("bind failed with error : %d\n",iErrorMsg);        rlt = 3;        return rlt;    }    return rlt;}void CServerNet::Run(){    //公开连接    listen(m_sock,20);    int len = sizeof(sockaddr);    bufferMutex = CreateSemaphore(NULL, 1, 1, NULL);    //HANDLE sendThread = CreateThread(NULL,0,)    HANDLE acceptThread = CreateThread(NULL, 0, WaitAcceptThread, (LPVOID)m_sock, 0, NULL);    //do     //{    //  //接收信息    //  newSocket = accept(m_sock,(sockaddr*)&tcpAddr,&len);    //      //  if (newSocket == INVALID_SOCKET)    //  {    //      //非可用socket    //  }    //  else    //  {    //      //新socket连接    //      printf("new socket connect : %d\n",newSocket);    //      //消息处理    //      do    //      {    //          printf("process\n");    //          //接收数据    //          memset(buf,0,sizeof(buf));    //          rval = recv(newSocket,buf,1024,0);    //              //          if (rval == SOCKET_ERROR)    //          {    //              //这应该是个异常，当客户端没有调用closeSocket就直接退出游戏的时候，将会进入这里    //              printf("recv socket error\n");    //              break;    //          }    //              //              //          if (rval == 0)    //              //recv返回0表示正常退出    //              printf("ending connection");    //          else    //              //显示接收到的数据    //              printf("recv %s\n",buf);    //      }while(rval != 0);    //      //关闭对应Accept的socket    //      closesocket(newSocket);    //  }    //      //      //} while (1);    //关闭自身的Socket    WaitForSingleObject(acceptThread, INFINITE);  // 等待线程结束     //WaitForSingleObject(sendThread, INFINITE);  // 等待线程结束      //CloseHandle(sendThread);      CloseHandle(bufferMutex);      WSACleanup();   // 终止对套接字库的使用     closesocket(m_sock);}CServerNet::CServerNet(void){}CServerNet::~CServerNet(void){}DWORD WINAPI WaitAcceptThread(LPVOID IpParameter){    SOCKET m_socket = (SOCKET)IpParameter;    while(true)    {        sockaddr_in tcpAddr;        int len = sizeof(sockaddr_in);        sockConn = accept(m_socket, (sockaddr*)&tcpAddr, &len);        char t[20];        printf("%s:%d上线",inet_ntoa(tcpAddr.sin_addr),tcpAddr.sin_port);        sprintf(t,"%s:%d",inet_ntoa(tcpAddr.sin_addr),tcpAddr.sin_port);        string t1=t;        if (SOCKET_ERROR != sockConn)        {                clientSocketGroup.push_back(sockConn);                m_ipSocket[sockConn] = t1;        }         HANDLE receiveThread = CreateThread(NULL, 0, RecMsgThread, (LPVOID)sockConn, 0, NULL);        WaitForSingleObject(bufferMutex, INFINITE);     // P（资源未被占用）            if(NULL == receiveThread) {               printf("\nCreatThread AnswerThread() failed.\n");           }           else{              printf("\nCreate Receive Client Thread OK.\n");          }          ReleaseSemaphore(bufferMutex, 1, NULL);    }}DWORD WINAPI RecMsgThread(LPVOID IpParameter){    SOCKET ClientSocket=(SOCKET)(LPVOID)IpParameter;    int rval;    while(1)    {        char recvBuf[1024];          rval = recv(ClientSocket, recvBuf, 1024, 0);          WaitForSingleObject(bufferMutex, INFINITE);        if (rval == SOCKET_ERROR)        {            printf("ONE Client Exit\n");            vector<SOCKET>::iterator result = find(clientSocketGroup.begin(), clientSocketGroup.end(), ClientSocket);              clientSocketGroup.erase(result);              for (map<SOCKET, string>::iterator i=m_ipSocket.begin(); i!=m_ipSocket.end(); i++)              {                  if (i->first == ClientSocket)                  {                      printf("%s下线\n",m_ipSocket[ClientSocket].c_str());                    m_ipSocket.erase(i);                    break;                }              }              closesocket(ClientSocket);              ReleaseSemaphore(bufferMutex, 1, NULL);            break;        }        printf("%s Says: %s\n", m_ipSocket[ClientSocket].c_str(), recvBuf);     // 接收信息        ReleaseSemaphore(bufferMutex, 1, NULL);    }    return 0;}int main(){    CServerNet serverNet;    int iRlt = serverNet.Init("127.0.0.1",8888);    if (iRlt == 0)    {        printf("init ok...\n");        serverNet.Run();    }    else        printf("serverNet init failed with error : %d\n",iRlt);    system("pause");    return 0;}

客户端
ClientNet.h

#pragma once#include<stdio.h>#include<Windows.h>#pragma comment(lib, "Ws2_32.lib")class CClientNet{private:    SOCKET m_sock;public:    CClientNet(void);    //连接上指定服务器    int Connect(int port,const char* address);    //发送信息    int SendMsg(const char* msg,int len);    //关闭    void Close();    ~CClientNet(void);};

ServerNet.cpp

#include "ServerNet.h"int CServerNet::Init( const char* address,int port ){    int rlt = 0;    //用于记录错误信息，并输出    int iErrorMsg;    //初始化WinSock    WSAData wsaData;    iErrorMsg = WSAStartup(MAKEWORD(1,1),&wsaData);    if (iErrorMsg != NO_ERROR)    {        //初始化WinSock失败        printf("wsastartup failed with error : %d\n",iErrorMsg);        //WSAGetLastError()        rlt = 1;        return rlt;    }    //创建服务端Socket    m_sock = socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);    if (m_sock == INVALID_SOCKET)    {        //创建Socket异常        printf("socket failed with error : %d\n",WSAGetLastError());        rlt = 2;        return rlt;    }    //声明信息    sockaddr_in serverAddr;    serverAddr.sin_family = AF_INET;    serverAddr.sin_port = port;    serverAddr.sin_addr.s_addr = inet_addr(address);    //绑定    iErrorMsg = bind(m_sock,(sockaddr*)&serverAddr,sizeof(serverAddr));    if (iErrorMsg < 0)    {        //绑定失败        printf("bind failed with error : %d\n",iErrorMsg);        rlt = 3;        return rlt;    }    return rlt;}void CServerNet::Run(){    //公开连接    listen(m_sock,20);    int len = sizeof(sockaddr);    bufferMutex = CreateSemaphore(NULL, 1, 1, NULL);    //HANDLE sendThread = CreateThread(NULL,0,)    HANDLE acceptThread = CreateThread(NULL, 0, WaitAcceptThread, (LPVOID)m_sock, 0, NULL);    //do     //{    //  //接收信息    //  newSocket = accept(m_sock,(sockaddr*)&tcpAddr,&len);    //      //  if (newSocket == INVALID_SOCKET)    //  {    //      //非可用socket    //  }    //  else    //  {    //      //新socket连接    //      printf("new socket connect : %d\n",newSocket);    //      //消息处理    //      do    //      {    //          printf("process\n");    //          //接收数据    //          memset(buf,0,sizeof(buf));    //          rval = recv(newSocket,buf,1024,0);    //              //          if (rval == SOCKET_ERROR)    //          {    //              //这应该是个异常，当客户端没有调用closeSocket就直接退出游戏的时候，将会进入这里    //              printf("recv socket error\n");    //              break;    //          }    //              //              //          if (rval == 0)    //              //recv返回0表示正常退出    //              printf("ending connection");    //          else    //              //显示接收到的数据    //              printf("recv %s\n",buf);    //      }while(rval != 0);    //      //关闭对应Accept的socket    //      closesocket(newSocket);    //  }    //      //      //} while (1);    //关闭自身的Socket    WaitForSingleObject(acceptThread, INFINITE);  // 等待线程结束     //WaitForSingleObject(sendThread, INFINITE);  // 等待线程结束      //CloseHandle(sendThread);      CloseHandle(bufferMutex);      WSACleanup();   // 终止对套接字库的使用     closesocket(m_sock);}CServerNet::CServerNet(void){}CServerNet::~CServerNet(void){}DWORD WINAPI WaitAcceptThread(LPVOID IpParameter){    SOCKET m_socket = (SOCKET)IpParameter;    while(true)    {        sockaddr_in tcpAddr;        int len = sizeof(sockaddr_in);        sockConn = accept(m_socket, (sockaddr*)&tcpAddr, &len);        char t[20];        printf("%s:%d上线",inet_ntoa(tcpAddr.sin_addr),tcpAddr.sin_port);        sprintf(t,"%s:%d",inet_ntoa(tcpAddr.sin_addr),tcpAddr.sin_port);        string t1=t;        if (SOCKET_ERROR != sockConn)        {                clientSocketGroup.push_back(sockConn);                m_ipSocket[sockConn] = t1;        }         HANDLE receiveThread = CreateThread(NULL, 0, RecMsgThread, (LPVOID)sockConn, 0, NULL);        WaitForSingleObject(bufferMutex, INFINITE);     // P（资源未被占用）            if(NULL == receiveThread) {               printf("\nCreatThread AnswerThread() failed.\n");           }           else{              printf("\nCreate Receive Client Thread OK.\n");          }          ReleaseSemaphore(bufferMutex, 1, NULL);    }}DWORD WINAPI RecMsgThread(LPVOID IpParameter){    SOCKET ClientSocket=(SOCKET)(LPVOID)IpParameter;    int rval;    while(1)    {        char recvBuf[1024];          rval = recv(ClientSocket, recvBuf, 1024, 0);          WaitForSingleObject(bufferMutex, INFINITE);        if (rval == SOCKET_ERROR)        {            printf("ONE Client Exit\n");            vector<SOCKET>::iterator result = find(clientSocketGroup.begin(), clientSocketGroup.end(), ClientSocket);              clientSocketGroup.erase(result);              for (map<SOCKET, string>::iterator i=m_ipSocket.begin(); i!=m_ipSocket.end(); i++)              {                  if (i->first == ClientSocket)                  {                      printf("%s下线\n",m_ipSocket[ClientSocket].c_str());                    m_ipSocket.erase(i);                    break;                }              }              closesocket(ClientSocket);              ReleaseSemaphore(bufferMutex, 1, NULL);            break;        }        printf("%s Says: %s\n", m_ipSocket[ClientSocket].c_str(), recvBuf);     // 接收信息        ReleaseSemaphore(bufferMutex, 1, NULL);    }    return 0;}int main(){    CServerNet serverNet;    int iRlt = serverNet.Init("127.0.0.1",8888);    if (iRlt == 0)    {        printf("init ok...\n");        serverNet.Run();    }    else        printf("serverNet init failed with error : %d\n",iRlt);    system("pause");    return 0;}
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matlab矩阵做聚类分析 matlab矩阵做聚类分析
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