上的网站app,创建网站容易吗,wordpress 漏洞利用工具,企业qq购买平台转自#xff1a;http://www.cnblogs.com/-Lei/archive/2012/09/04/2670942.html 下面是对socket操作的封装#xff0c;因为在Linux下写中文到了windows里面会乱码#xff0c;所以注释用英文来写#xff0c;有空再查下解决方法吧 socket.h #ifndef SOCKET_H #define SOCKET_…转自http://www.cnblogs.com/-Lei/archive/2012/09/04/2670942.html 下面是对socket操作的封装因为在Linux下写中文到了windows里面会乱码所以注释用英文来写有空再查下解决方法吧 socket.h #ifndef SOCKET_H #define SOCKET_H#include sys/socket.h #include sys/types.h #include netinet/in.h #include arpa/inet.h #include stringconst int MAXCONNECTION5; const int MAXRECEIVE 500;class Socket {public:Socket();//virtual destructiorvirtual ~Socket();// Server initializationbool Create(); //create a socketbool Bind(const int port);bool Listen() const;bool Accept(Socket clientSocket) const;// Client initializationbool Connect(const std::string host,const int port);// Data Transmissionbool Send(Socket socket,const std::string message) const;int Receive(Socket socket,std::string message) const;void SetNonBlocking(const bool flag);bool IsValid() const;private://use m_sockfd to record the result of function socketint m_sockfd;struct sockaddr_in m_address; };#endif 这里解释下为什么析构函数是虚的如果要用到多态的话也就是用一个指向基类的指针来处理对不同到对象 如果类的成员函数不是虚函数只是个普通的函数那么会出现一种静态绑定到情况如 Base* pBase new Derive; //这里Base的析构函数不是虚函数 delete pBase; //这里只会调用Base::~Base()所以派生类部分的资源将得不到释放 如果析构函数是虚函数的话那么将调用Derive::~Derive()由于我们提供了派生类的析构函数编译器会扩展这个析构函数 在里面调用基类的析构函数这样派生类和基类的资源都将得到释放 socket.cpp #include Socket.h #include stdlib.h #include memory.h #include iostream #include fcntl.hSocket::Socket() :m_sockfd(-1) { }Socket::~Socket() {if(IsValid())::close(m_sockfd); }//server function bool Socket::Create() {m_sockfdsocket(AF_INET,SOCK_STREAM,0);if(!IsValid())return false;return true; }bool Socket::Bind(const int port) {if(!IsValid())return false;m_address.sin_familyAF_INET;m_address.sin_addr.s_addr htonl(INADDR_ANY);m_address.sin_porthtons(port);int bindReturnbind(m_sockfd,(struct sockaddr*)m_address,sizeof(m_address));if(bindReturn-1)return false;return true; }bool Socket::Listen()const {if(!IsValid())return false;int listenReturnlisten(m_sockfd,MAXCONNECTION);if(listenReturn -1)return false;return true; }bool Socket::Accept(Socket clientSocket) const {int clientaddrLengthsizeof(clientSocket.m_address);clientSocket.m_sockfd::accept(m_sockfd,(struct sockaddr*)clientSocket.m_address,(socklen_t *)clientaddrLength);if(clientSocket.m_sockfd-1)return false;return true; } //end server functionsbool Socket::Connect(const std::string host,const int port) {if(!IsValid())return false;m_address.sin_familyAF_INET;m_address.sin_porthtons(port);m_address.sin_addr.s_addrinet_addr(host.c_str());int connectReturn::connect(m_sockfd,(struct sockaddr*)m_address,sizeof(m_address));if(connectReturn-1)return false;return true;}// Data Transmission bool Socket::Send(Socket socket,const std::string message) const {int result::send(socket.m_sockfd,message.c_str(),message.length(),MSG_NOSIGNAL);if(result-1)return false;return true; }int Socket::Receive(Socket socket,std::string message) const {char buffer[MAXRECEIVE1];message.clear();memset(buffer,0,MAXRECEIVE1);int numberRead::recv(socket.m_sockfd,buffer,MAXRECEIVE,0);if(numberRead-1){std::couterror in Socket::Receive\n;return 0;}else if(numberRead0)return 0;else{messagebuffer;return numberRead;}}void Socket::SetNonBlocking(const bool flag) {if(IsValid())    {          int opts;          opts fcntl ( m_sockfd,                 F_GETFL );          if ( opts 0 )            {              return;            }          if ( flag )            opts ( opts | O_NONBLOCK );          else            opts ( opts ~O_NONBLOCK );          fcntl ( m_sockfd,              F_SETFL,opts );    }}bool Socket::IsValid() const {//if call function socket fail,it returns -1return m_sockfd!-1; } 接下来是异常处理到类 #ifndef SocketException_H #define SocketException_H#include stringclass SocketException {public:SocketException ( std::string description ) : m_description( description ) {};~SocketException (){};std::string Description() { return m_description; }private:std::string m_description; };#endif