贡献一段代码 功能就是linux 系统和 Windows系统网络通信，并且增加了发送struct结构的方法。
Windows Sockect
WindowsSockect.h
#ifndef WINSOCSER
#define WINSOCSER#pragma once
/********************公用数据预定义***************************/
//WinSock必须的头文件和库
#include <iostream>
#include <list>
using namespace std;
#include<WinSock2.h>
#pragma comment(lib,"ws2_32.lib")
//辅助头文件
#include <assert.h>
//网络数据类型
#define TCP_DATA 1
#define UDP_DATA 2
//TCP连接限制
#define MAX_TCP_CONNECT 10
//缓冲区上限
#define MAX_BUFFER_LEN 1024
/********************************************************************************************************//*******************客户端*************************/
/********************************************************************************************************/
/*
（1）字段m_iType标识通信协议是TCP还是UDP。
（2）m_Socket保存了本地的套接字，用于发送和接收数据。
（3）m_SockaddrIn记录了连接的服务器的地址和端口信息。
（4）构造函数使用WSAStartup(WINSOCK_VERSION,&wsa)加载WinSock DLL。
（5）init函数初始化客户端进行通信的服务器协议类型，IP和端口。
（6）getProto，getIP，getPort分别提取服务器信息。
（7）sendData向服务器发送指定缓冲区的数据。
（8）getData从服务器接收数据保存到指定缓冲区。
（9）析构函数使用closesocket(m_Socket)关闭套接字，WSACleanup卸载WinSock DLL。
*/
class Client
{int m_iType;//通信协议类型SOCKET m_Socket;//本地套接字sockaddr_in m_SockaddrIn;//服务器地址结构
public:Client();void init(int inet_type,char*addr,unsigned short port);//初始化通信协议，地址，端口char*getProto();//获取通信协议类型char*getIP();//获取IP地址unsigned short getPort();//获取端口void sendData(const char * buff,const int len);//发送数据void getData(char * buff,const int len);//接收数据virtual ~Client(void);
};
/********************************************************************************************************//*********************服务器********************/
/********************************************************************************************************/
//服务器类Server比客户端复杂一些，首先服务器需要处理多个客户端连接请求，因此需要为每个客户端开辟新的线程（UDP不需要）
/*
（1）和Client类似，Server也需要字段m_Socket，m_SockaddrIn和m_iType，这里引入clientAddrs保存客户端的信息列表，用addClient和delClient维护这个列表。
（2）CRITICAL_SECTION *cs记录服务器的临界区对象，用于保持线程处理函数内的同步。
（3）构造函数和析构函数与Client功能类似，getProto，getIP，getPort允许获取服务器和客户端的地址信息。
（4）init初始化服务器参数，start启动服务器。
（5）connect，procRequest，disConnect用于实现用户自定义的服务器行为。
（6）友元函数threadProc是线程处理函数。
*/
class Server
{CRITICAL_SECTION *cs;//临界区对象int m_iType;//记录数据包类型SOCKET m_Socket;//本地socketsockaddr_in m_SockaddrIn;//服务器地址list<sockaddr_in*> clientAddrs;//客户端地址结构列表sockaddr_in* addClient(sockaddr_in client);//添加客户端地址结构void delClient(sockaddr_in *client);//删除客户端地址结构friend DWORD WINAPI threadProc(LPVOID lpParam);//线程处理函数作为友元函数
public:Server();void init(int inet_type,char*addr,unsigned short port);void start();//启动服务器 这个专门针对那些多客户端的应用程序char* getProto();//获取协议类型char* getIP(sockaddr_in*m_SockaddrIn=NULL);//获取IPunsigned short getPort(sockaddr_in*m_SockaddrIn=NULL);//获取端口virtual void connect(sockaddr_in*client);//连接时候处理virtual int procRequest(sockaddr_in*client,const char* req,int reqLen,char*resp);//处理客户端请求virtual void disConnect(sockaddr_in*client);//断开时候处理virtual ~Server(void);
};
/*
void testServer()
{int type;cout<<"选择通信类型(TCP=0/UDP=1):";cin>>type;Server s;if(type==1)s.init(UDP_DATA,"127.0.0.1",90);elses.init(TCP_DATA,"127.0.0.1",80);cout<<s.getProto()<<"服务器"<<s.getIP()<<"["<<s.getPort()<<"]"<<"启动成功。"<<endl;s.start();
}
void testClient()
{int type;cout<<"选择通信类型(TCP=0/UDP=1):";cin>>type;Client c;if(type==1)c.init(UDP_DATA,"127.0.0.1",90);elsec.init(TCP_DATA,"192.168.1.116",4567);cout<<"客户端发起对"<<c.getIP()<<"["<<c.getPort()<<"]的"<<c.getProto()<<"连接。"<<endl;char buff[MAX_BUFFER_LEN];while(true){//cout<<"发送"<<c.getProto()<<"数据到"<<c.getIP()<<"["<<c.getPort()<<"]:";//cin>>buff;//if(strcmp(buff,"q")==0)//break;//c.sendData(buff,MAX_BUFFER_LEN);c.getData(buff,4);cout<<"接收"<<c.getProto()<<"数据从"<<c.getIP()<<"["<<c.getPort()<<"]:"<<buff<<endl;}
}#include "WindowsSockect.h"
#include <iostream>
using namespace std;
int main()
{
int flag;
cout<<"构建服务器/客户端（0-服务器|1-客户端）:";
cin>>flag;
if(flag==0)
testServer();
else
testClient();
return 0;
}*/
#endifWindowsSockect.cpp
#include "WindowsSockect.h"
/********************************************************************************************************/// Client
/********************************************************************************************************/
Client::Client()
{WSADATA wsa;int rslt=WSAStartup(WINSOCK_VERSION,&wsa);//加载WinSock DLLassert(rslt==0);
}
Client::~Client(void)
{if(m_Socket!=INVALID_SOCKET)closesocket(m_Socket);WSACleanup();//卸载WinSock DLL
}
/*
首先，Client根据不同的协议类型创建不同的套接字m_Socket，然后填充m_SockaddrIn结构，
其中inet_addr是将字符串IP地址转化为网络字节序的IP地址，htons将整形转化为网络字
节顺序，对于短整型，相当于高低字节交换。如果通信是TCP协议，那么还需要客户端主动
发起connect连接，UDP不需要做。
*/
void Client::init(int inet_type,char*addr,unsigned short port)
{int rslt;m_iType=inet_type;if(m_iType==TCP_DATA)//TCP数据m_Socket=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);//创建TCP套接字else if(m_iType==UDP_DATA)//UDP数据m_Socket=socket(AF_INET,SOCK_DGRAM,IPPROTO_UDP);//创建UDP套接字assert(m_Socket!=INVALID_SOCKET);m_SockaddrIn.sin_family=AF_INET;m_SockaddrIn.sin_addr.S_un.S_addr=inet_addr(addr);m_SockaddrIn.sin_port=htons(port);memset(m_SockaddrIn.sin_zero,0,8);if(m_iType==TCP_DATA)//TCP数据{rslt=connect(m_Socket,(sockaddr*)&m_SockaddrIn,sizeof(sockaddr));//客户端连接请求assert(rslt==0);}
}void Client::sendData(const char * buff,const int len)//发送数据
{int rslt;int addrLen=sizeof(sockaddr_in);if(m_iType==TCP_DATA)//TCP数据{rslt=send(m_Socket,buff,len,0);}else if(m_iType==UDP_DATA)//UDP数据{rslt=sendto(m_Socket,buff,len,0,(sockaddr*)&m_SockaddrIn,addrLen);}assert(rslt>0);
}
void Client::getData(char * buff,const int len)
{int rslt;int addrLen=sizeof(sockaddr_in);memset(buff,0,len);if(m_iType==TCP_DATA)//TCP数据{int iGetOk = 0;while(iGetOk < len){rslt=recv(m_Socket,buff + iGetOk,len - iGetOk,0);if(rslt == -1){perror("Tcp Get Data");exit(1);}iGetOk += rslt;} buff[len]='\0';}else if(m_iType==UDP_DATA)//UDP数据{int iGetOk = 0;while(iGetOk < len){rslt=recvfrom(m_Socket,buff + iGetOk,len-iGetOk,0,(sockaddr*)&m_SockaddrIn,&addrLen);if(rslt == -1){perror("Tcp Get Data");exit(1);}iGetOk += rslt;} buff[len]='\0';}assert(rslt>0);
}
//有时需要获取客户端连接的服务器信息
//需要额外说明的是，inet_ntoa将网络字节序的IP地址转换为字符串IP，和前边inet_addr功能相反，ntohs和htons功能相反。
char* Client::getProto()
{if(m_iType==TCP_DATA)return "TCP";else if(m_iType==UDP_DATA)return "UDP";elsereturn "";
}char* Client::getIP()
{return inet_ntoa(m_SockaddrIn.sin_addr);
}unsigned short Client::getPort()
{return ntohs(m_SockaddrIn.sin_port);
}
/*****************************************Server********************************************************/// Server
/*****************************************************************************************************/
//首先根据通信协议类型创建本地套接字m_Socket，填充地址m_SockaddrIn，使用bind函数绑定服务器参数，对于TCP通信，需要listen进行服务器监听。
void Server::init(int inet_type,char*addr,unsigned short port)
{int rslt;m_iType=inet_type;if(m_iType==TCP_DATA)//TCP数据m_Socket=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);//创建TCP套接字else if(m_iType==UDP_DATA)//UDP数据m_Socket=socket(AF_INET,SOCK_DGRAM,IPPROTO_UDP);//创建UDP套接字assert(m_Socket!=INVALID_SOCKET);m_SockaddrIn.sin_family=AF_INET;m_SockaddrIn.sin_addr.S_un.S_addr=inet_addr(addr);m_SockaddrIn.sin_port=htons(port);memset(m_SockaddrIn.sin_zero,0,8);rslt=bind(m_Socket,(sockaddr*)&m_SockaddrIn,sizeof(m_SockaddrIn));//绑定地址和端口assert(rslt==0);if(m_iType==TCP_DATA)//TCP需要侦听{rslt=listen(m_Socket,MAX_TCP_CONNECT);//监听客户端连接assert(rslt==0);}
}
struct SockParam
{SOCKET rsock;//远程的socketsockaddr_in *raddr;//远程地址结构Server*pServer;//服务器对象指针SockParam(SOCKET rs,sockaddr_in*ra,Server*ps){rsock=rs;raddr=ra;pServer=ps;}
};
/*
线程处理函数使用传递的服务器对象指针pServer获取服务器socket，
地址和临界区对象。和客户端不同的是，服务接收发送数据使用的socket
不是本地socket而是客户端的socket！为了保证线程的并发控制，
使用EnterCriticalSection和LeaveCriticalSection保证，中间的请求处
理函数和UDP使用的相同。另外，线程的退出表示客户端的连接断开，
这里更新客户端列表并调用disConnect允许服务器做最后的处理。
和connect类似，这一对函数调用只针对TCP通信，对于UDP通信不存在调用关系。
*/
DWORD WINAPI threadProc(LPVOID lpParam)//TCP线程处理函数
{SockParam sp=*(SockParam*)lpParam;Server*s=sp.pServer;SOCKET sock=s->m_Socket;SOCKET clientSock=sp.rsock;sockaddr_in *clientAddr=sp.raddr;CRITICAL_SECTION*cs=s->cs;int rslt;char req[MAX_BUFFER_LEN+1]={0};//数据缓冲区,多留一个字节，方便输出do{rslt=recv(clientSock,req,MAX_BUFFER_LEN,0);//接收数据if(rslt<=0)break;char resp[MAX_BUFFER_LEN]={0};//接收处理后的数据EnterCriticalSection(cs);rslt=s->procRequest(clientAddr,req,rslt,resp);//处理后返回数据的长度LeaveCriticalSection(cs);assert(rslt<=MAX_BUFFER_LEN);//不会超过MAX_BUFFER_LENrslt=send(clientSock,resp,rslt,0);//发送tcp数据}while(rslt!=0||rslt!=SOCKET_ERROR);s->delClient(clientAddr);s->disConnect(clientAddr);//断开连接后处理return 0;
}
//初始化服务器后使用start启动服务器：
// TCP服务器不断的监听新的连接请求，
// 使用accept接收请求，获得客户端的地址结构和socket，
// 然后更新客户端列表，调用connect进行连接时候的处理，
// 使用CreateThread创建一个TCP客户端线程，线程参数传递了
// 客户端socket和地址，以及服务器对象的指针，
// 交给procThread处理数据的接收和发送。
void Server::start()
{int rslt;sockaddr_in client;//客户端地址结构int addrLen=sizeof(client);SOCKET clientSock;//客户端socketchar buff[MAX_BUFFER_LEN];//UDP数据缓存while(true){if(m_iType==TCP_DATA)//TCP数据{clientSock=accept(m_Socket,(sockaddr*)&client,&addrLen);//接收请求if(clientSock==INVALID_SOCKET)break;assert(clientSock!=INVALID_SOCKET);sockaddr_in*pc=addClient(client);//添加一个客户端connect(pc);//连接处理函数SockParam sp(clientSock,pc,this);//参数结构HANDLE thread=CreateThread(NULL,0,threadProc,(LPVOID)&sp,0,NULL);//创建连接线程assert(thread!=NULL);CloseHandle(thread);//关闭线程}else if(m_iType==UDP_DATA)//UDP数据{memset(buff,0,MAX_BUFFER_LEN);rslt=recvfrom(m_Socket,buff,MAX_BUFFER_LEN,0,(sockaddr*)&client,&addrLen);assert(rslt>0);char resp[MAX_BUFFER_LEN]={0};//接收处理后的数据rslt=procRequest(&client,buff,rslt,resp);//处理请求rslt=sendto(m_Socket,resp,rslt,0,(sockaddr*)&client,addrLen);//发送udp数据}}
}
void Server::connect(sockaddr_in*client)
{cout<<"客户端"<<getIP(client)<<"["<<getPort(client)<<"]"<<"连接。"<<endl;
}
int Server::procRequest(sockaddr_in*client,const char* req,int reqLen,char*resp)
{cout<<getIP(client)<<"["<<getPort(client)<<"]:"<<req<<endl;if(m_iType==TCP_DATA)strcpy_s(resp,8,"TCP Back");else if(m_iType==UDP_DATA) strcpy_s(resp,8,"UDP Back");return 10;
}
void Server::disConnect(sockaddr_in*client)
{cout<<"客户端"<<getIP(client)<<"["<<getPort(client)<<"]"<<"断开。"<<endl;
}
Server::Server()
{cs=new CRITICAL_SECTION();InitializeCriticalSection(cs);//初始化临界区WSADATA wsa;int rslt=WSAStartup(WINSOCK_VERSION,&wsa);//加载WinSock DLLassert(rslt==0);
}
char* Server::getProto()
{if(m_iType==TCP_DATA)return "TCP";else if(m_iType==UDP_DATA)return "UDP";elsereturn "";
}
char* Server::getIP(sockaddr_in*addr)
{if(addr==NULL)addr=&m_SockaddrIn;return inet_ntoa(addr->sin_addr);
}
unsigned short Server::getPort(sockaddr_in*addr)
{if(addr==NULL)addr=&m_SockaddrIn;return htons(addr->sin_port);
}
sockaddr_in* Server::addClient(sockaddr_in client)
{sockaddr_in*pc=new sockaddr_in(client);clientAddrs.push_back(pc);return pc;
}
void Server::delClient(sockaddr_in *client)
{assert(client!=NULL);delete client;clientAddrs.remove(client);
}
Server::~Server(void)
{for(list<sockaddr_in*>::iterator i=clientAddrs.begin();i!=clientAddrs.end();++i)//清空客户端地址结构{delete *i;}clientAddrs.clear();if(m_Socket!=INVALID_SOCKET)closesocket(m_Socket);//关闭服务器socketWSACleanup();//卸载WinSock DLLDeleteCriticalSection(cs);delete cs;
}WindowsSockectMain.cpp
#include "WindowsSockect.h"
#include <iostream>
using namespace std;
typedef struct _stDoubleInt
{int m_iFirst;int m_iSecond;}stDoubleInt;
int main()
{Client c;c.init(TCP_DATA,"192.168.1.116",4567);cout<<"客户端发起对"<<c.getIP()<<"["<<c.getPort()<<"]的"<<c.getProto()<<"连接。"<<endl;stDoubleInt *myNode=(stDoubleInt*)malloc(sizeof(stDoubleInt));int needRecv=sizeof(stDoubleInt);char *buffer=(char*)malloc(needRecv);stDoubleInt stDoubleIntBuf[100];int iCal = 0,iCalTem = 0;while(iCal < 55){c.getData((char *)buffer,needRecv);memcpy(myNode,buffer,needRecv);std::cout<<myNode->m_iFirst<<" "<<myNode->m_iSecond<<std::endl; stDoubleIntBuf[iCalTem].m_iFirst = myNode->m_iFirst;stDoubleIntBuf[iCalTem].m_iSecond =myNode->m_iSecond;iCal++;iCalTem = iCal;}getchar();return 0;
}Linux Sockect
Tcp.h
#ifndef QTCP_H
#define QTCP_H#include <netdb.h>
/**********Tcp client*****************/
class MyTcpClient
{public:MyTcpClient();~MyTcpClient();public:void ClientCloseSockfd();int GetClientFd()const;void ClientControl(const char *cpHostName,const unsigned short int &iPort);int ClientSend(unsigned const char *buffer ,const int &iSize);int ClientReceive(char *pBuffer,const int &iBufferSize,const int &iWantByte);private:void ClientGetHostByName(const char *cpHostName);void ClientSocket();void ClientSocketAddresInit(const unsigned short int &iPort);void ClientConnect();private:unsigned int m_iMaxQueConnNum; //表示最大连接数int m_iSockfd;int m_iSendbytes;int m_iRecvbytes;private:typedef struct{struct hostent * host;struct sockaddr_in serv_addr;}MyClientStruct;MyClientStruct * m_stpMyClientControl;
};
/*****************tcp server****************/
class MyTcpServer
{public:MyTcpServer();~MyTcpServer();private:void ServerSocket();void ServerSocketAddresInit(const unsigned short int &iPort);void ServerSetSocketOpt();void ServerBindListen();void ServerAccept();void ServerDisplay();void ServerCloseSockfd();public:void ServerControl(const unsigned short int &iPort);public:int ServerReceive(char *pBuffer,const int &iBufferSize,const int &iWantByte);int ServerSend(const char *buffer, const int &iSize);private:typedef struct{struct sockaddr_in server_sockaddr;struct sockaddr_in client_sockaddr;}MyServerStruct;MyServerStruct * m_stpMyServerControl;private://unsigned short int PORT; //端口号unsigned int m_iMaxQueConnNum; //表示最大连接数int m_iSinSize;int m_iRecvbytes;int m_iSendbytes;int m_iSockfd;//int m_iClientFd;
};
#endif // QTCP_H
tcp.cpp
#include"Tcp.h"
#include <iostream>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
/*****************tcp client*************************/
MyTcpClient::MyTcpClient()
{//this->PORT=4322; //另一端的server port 端口号this->m_iMaxQueConnNum=5; //表示最大连接数this->m_iSockfd=0;this->m_iSendbytes=0;this->m_iRecvbytes=0;this->m_stpMyClientControl =new MyClientStruct;::memset(m_stpMyClientControl,0,sizeof(MyClientStruct));std::cout<<"Create MyTcpClient Class finished !"<<std::endl;}
MyTcpClient::~MyTcpClient()
{if(!m_stpMyClientControl){delete m_stpMyClientControl;m_stpMyClientControl=NULL;std::cout<<"Delete m_stpMyClientControl !!!"<<std::endl;}}
void MyTcpClient::ClientGetHostByName(const char *cpHostName)
{/*地址解析函数*/if ((m_stpMyClientControl->host = gethostbyname(cpHostName)) == NULL){perror("gethostbyname");exit(1);}std::cout<<"The Client Host Name:"<<cpHostName<<std::endl;
}
void MyTcpClient::ClientSocket()
{/*创建socket*/if ((m_iSockfd = socket(AF_INET,SOCK_STREAM,0)) == -1){perror("socket");exit(1);}std::cout<<"The Client Create The Socket !!"<<std::endl;}
void MyTcpClient::ClientSocketAddresInit(const unsigned short int &iPort)
{/*设置sockaddr_in 结构体中相关参数*/m_stpMyClientControl->serv_addr.sin_family = AF_INET;m_stpMyClientControl->serv_addr.sin_port = htons(iPort);m_stpMyClientControl->serv_addr.sin_addr = *((struct in_addr *)m_stpMyClientControl->host->h_addr);bzero(&(m_stpMyClientControl->serv_addr.sin_zero), 8);std::cout<<"The client_sockaddr_init OK! The PORT:"<<iPort<<std::endl;}
void MyTcpClient::ClientConnect()
{/*调用connect函数主动发起对服务器端的连接*/int my_true=1;while(my_true){if(connect(m_iSockfd,(struct sockaddr *)&m_stpMyClientControl->serv_addr, sizeof(struct sockaddr))== -1){std::cout<<"Can not connect,I will try"<<std::endl;}elsemy_true=0;}std::cout<<"The Client Connect OK !!"<<std::endl;
}
int MyTcpClient::ClientSend(unsigned const char *buffer,const int &iSize)//这里必须要用size，因为传过来的buffer只是一个地址。
{int m_iSendbytes_ok=0;while(m_iSendbytes_ok<iSize){if ((m_iSendbytes = send(m_iSockfd, buffer+m_iSendbytes_ok,iSize-m_iSendbytes_ok, 0)) == -1){perror("send");exit(1);}m_iSendbytes_ok+=m_iSendbytes;}std::cout<<"Send OK!!"<<std::endl;return m_iSendbytes;
}
int MyTcpClient::ClientReceive(char*pBuffer,const int &iBufferSize,const int &iWantByte)
{memset(pBuffer , 0, iBufferSize);int iGet = recv(m_iSockfd,pBuffer,iWantByte,0);if(iGet < iWantByte){std::cout<<"Socket Get Not Equle to WantByte"<<std::endl;}if(iGet < iBufferSize){pBuffer[iGet] = '\0';}return iGet;
}
void MyTcpClient::ClientCloseSockfd(){close(m_iSockfd);
}
void MyTcpClient::ClientControl(const char *cpHostName,const unsigned short int &iPort){ClientGetHostByName(cpHostName);ClientSocket();ClientSocketAddresInit(iPort);// 接收缓冲区int nRecvBufLen = 32 * 1024; //设置为32Ksetsockopt(m_iSockfd,SOL_SOCKET, SO_RCVBUF, (const char*)&nRecvBufLen, sizeof(int));ClientConnect();}
int MyTcpClient::GetClientFd()const
{return m_iSockfd;
}
/*****************************tcp_server***************************************/
MyTcpServer::MyTcpServer()
{//this->PORT=4321; //这个是服务端专属端口号this->m_iMaxQueConnNum=5;this->m_iSinSize=0;this->m_iRecvbytes=0;this->m_iSendbytes=0;this->m_iSockfd=0;this->m_iSockfd=0;this->m_stpMyServerControl =new MyServerStruct;::memset(m_stpMyServerControl,0,sizeof(MyServerStruct));std::cout<<"Create MyTcpServer Class finished !"<<std::endl;
}
MyTcpServer::~MyTcpServer()
{if(m_stpMyServerControl)delete m_stpMyServerControl;m_stpMyServerControl=NULL;std::cout<<"Delete MyTcpServer Class finished !"<<std::endl;
}
void MyTcpServer::ServerSocket()
{/*建立socket连接*/if ((m_iSockfd = socket(AF_INET,SOCK_STREAM,0))== -1) //最后一个参数表示为 自动选择选取的 通信类型 TCP / UDP{perror("socket");exit(1);}std::cout<<"Server Socket Id ="<<m_iSockfd<<std::endl;}
void MyTcpServer::ServerSocketAddresInit(const unsigned short int &iPort)
{/*设置sockaddr_in 结构体中相关参数*/m_stpMyServerControl->server_sockaddr.sin_family = AF_INET;m_stpMyServerControl->server_sockaddr.sin_port = htons(iPort);m_stpMyServerControl->server_sockaddr.sin_addr.s_addr = INADDR_ANY;bzero(&(m_stpMyServerControl->server_sockaddr.sin_zero), 8);}
void MyTcpServer::ServerSetSocketOpt()
{bool Reused=true;/*使得重复使用本地地址与套接字进行绑定 设置调用closesocket()后,仍可继续重用该socket*/setsockopt(m_iSockfd, SOL_SOCKET, SO_REUSEADDR,( const char* )&Reused,sizeof(bool));int nSendBufLen = 32*1024; //设置为32K //发送缓冲区setsockopt( m_iSockfd, SOL_SOCKET, SO_SNDBUF, ( const char* )&nSendBufLen, sizeof(int));int nZero = 0;setsockopt(m_iSockfd, SOL_SOCKET, SO_SNDBUF, ( char * )&nZero, sizeof( nZero ) );
}void MyTcpServer::ServerBindListen()
{/*绑定函数bind*/if (bind(m_iSockfd, (struct sockaddr *)&m_stpMyServerControl->server_sockaddr, sizeof(struct sockaddr))== -1){perror("bind");exit(1);}std::cout<<"Server Bind success!"<<std::endl;/*调用listen函数*/if (listen(m_iSockfd, m_iMaxQueConnNum) == -1){perror("listen");exit(1);}std::cout<<"server listening ............."<<std::endl;//std::cout<<"Server is Listening.... In IP:"<<inet_ntoa(m_stpMyServerControl->server_sockaddr.sin_addr)<<std::endl;
}
void MyTcpServer::ServerAccept()
{/*调用accept函数，等待客户端的连接*/if ((m_iSockfd = accept(m_iSockfd, (struct sockaddr *)&m_stpMyServerControl->client_sockaddr,(socklen_t*)&m_iSinSize)) == -1){perror("accept");exit(1);}std::cout<<"server accept"<<std::endl;//std::cout<<"server: got connection from"<<inet_ntoa(m_stpMyServerControl->client_sockaddr.sin_addr)<<std::endl;
}
int MyTcpServer::ServerReceive(char*pBuffer,const int &iBufferSize,const int &iWantByte)
{memset(pBuffer , 0, iBufferSize);int iGet = recv(m_iSockfd,pBuffer,iWantByte,0);if(iGet < iWantByte){std::cout<<"Socket Get Not Equle to WantByte"<<std::endl;}if(iGet < iBufferSize){pBuffer[iGet] = '\0';}return iGet;
}
int MyTcpServer::ServerSend(const char *buffer,const int &iSize)//这里必须要用size，因为传过来的buffer只是一个地址。
{int sendbytes_ok=0;while(sendbytes_ok<iSize){if ((m_iSendbytes = send(m_iSockfd, buffer+sendbytes_ok,iSize-sendbytes_ok, 0)) == -1){perror("send");exit(1);}sendbytes_ok+=m_iSendbytes;}std::cout<<"Send OK!!"<<std::endl;return m_iSendbytes;
}
void MyTcpServer::ServerCloseSockfd()
{close(m_iSockfd);std::cout<<"Server Close The Sockfd !!!"<<std::endl;
}
void MyTcpServer::ServerControl(const unsigned short int &iPort)
{ServerSocket();ServerSocketAddresInit(iPort);ServerSetSocketOpt();ServerBindListen();ServerAccept();
}
main.cpp
//============================================================================
// Name : WindowsSockectTest.cpp
// Author : sfe
// Version :
// Copyright : Your copyright notice
// Description : Hello World in C++, Ansi-style
//============================================================================
#include <iostream>
#include"Tcp.h"
#include<stdlib.h>
#include<string.h>
using namespace std;
typedef struct _stDoubleInt
{int m_iFirst;int m_iSecond;
}stDoubleInt;
int main() {cout << "!!!Hello World!!!" << endl; // prints !!!Hello World!!!system("ifconfig");MyTcpServer oMyTcpServer;oMyTcpServer.ServerControl(4567);
// string pMjpegBuffer("Fuck");stDoubleInt st1={1,2};char *buffer = (char * )malloc(sizeof(stDoubleInt));memcpy(buffer,&st1,sizeof(stDoubleInt));std::cout<<buffer<<" "<<sizeof(stDoubleInt)<<std::endl;int n = 50;while(1)//( n > 0){// oMyTcpServer.ServerSend(pMjpegBuffer.c_str(),pMjpegBuffer.size());oMyTcpServer.ServerSend(buffer,sizeof(stDoubleInt));//n--;}return 0;
}