C++ TcpServer类代码示例

// Message passing routine, used to send and receive a typed message
// Useful for checking the packing and unpacking of message data.
void fakeMessagePassing(TypedMessage &send, TypedMessage &recv)
{
  const int tcpPort = TEST_PORT_BASE+401;
  char ipAddr[] = "127.0.0.1";

  TcpClient tcpClient;
  TcpServer tcpServer;
  SimpleMessage msgSend, msgRecv;

  send.toTopic(msgSend);

  // Construct server

  tcpServer.init(tcpPort);

  // Construct a client
  tcpClient.init(&ipAddr[0], tcpPort);
  tcpClient.makeConnect();  // make tcp client connection

  tcpServer.makeConnect();      // make tcp server connection

  tcpClient.sendMsg(msgSend);   // send message
  tcpServer.receiveMsg(msgRecv); // physically receive message
  recv.init(msgRecv); // copy received message into reference
}

int main(int argc, char* argv[])
{
  // Create an instance of the server
  TcpServer server = TcpServer::create_server();
  
  // Prepare the server for listening for client connections
  char* port_str = (char*) "2013"; // default port 2013
  if (argc == 2) {
    port_str = (char*) argv[1];
  }
  unsigned short port = (unsigned short) atoi(port_str);

  int server_fd = server.prepare_server_socket(port, SOCK_STREAM);
  if (server_fd  == -1) {
    cout << "Server preparation failed. Exiting application..." << endl;
    exit(1);
  }
  
  // Run the main loop
  // This method run indefinitely
  int ret = server.run_main_event_loop();
  if (ret != 0) {
    cout << "Error running the server main event loop, exiting the server process..." << endl;
  }

  // At this point we are exiting the server
  return 0;
}

void Client::connectToServer(LoginHandler *loginhandler)
{
	Q_ASSERT(_isloopback);

	TcpServer *server = new TcpServer(this);
	_server = server;
	_isloopback = false;
	m_sessionId = loginhandler->sessionId(); // target host/join ID (if known already)

	connect(server, SIGNAL(loggingOut()), this, SIGNAL(serverDisconnecting()));
	connect(server, SIGNAL(serverDisconnected(QString, QString, bool)), this, SLOT(handleDisconnect(QString, QString, bool)));
	connect(server, SIGNAL(serverDisconnected(QString, QString, bool)), loginhandler, SLOT(serverDisconnected()));
	connect(server, SIGNAL(loggedIn(QString, int, bool)), this, SLOT(handleConnect(QString, int, bool)));
	connect(server, SIGNAL(messageReceived(protocol::MessagePtr)), this, SLOT(handleMessage(protocol::MessagePtr)));

	connect(server, SIGNAL(expectingBytes(int)), this, SIGNAL(expectingBytes(int)));
	connect(server, SIGNAL(bytesReceived(int)), this, SIGNAL(bytesReceived(int)));
	connect(server, SIGNAL(bytesSent(int)), this, SIGNAL(bytesSent(int)));
	connect(server, SIGNAL(lagMeasured(qint64)), this, SIGNAL(lagMeasured(qint64)));

	if(loginhandler->mode() == LoginHandler::HOST)
		loginhandler->setUserId(m_myId);

	emit serverConnected(loginhandler->url().host(), loginhandler->url().port());
	server->login(loginhandler);

	m_lastToolCtx = canvas::ToolContext();
}

int main(int argc, char** argv)
{
  // Initialize ROS node "sm_talker"
  ros::init(argc, argv, "sm_listener");

  // Required to start timers for non-node ROS use.
  ros::Time::init();

  // Little message to know she's started
  ROS_INFO_STREAM("STARTING SM_MANAGER");

  // Create and execute manager
  // * Create a TCP server connection on TCP_PORT (see common.h)
  // * Initialize manager using server connection
  // * Initialize handler using server connection
  // * Add handler to manager
  // * Execute manager spin loop
  TcpServer server;
  server.init(TCP_PORT);

  MessageManager manager;
  MyHandler handler;

  manager.init(&server);

  // Handler initilaized with reply connection (typically the same as
  // incoming connection but now always)
  handler.init(&server);
  manager.add(&handler);
  manager.spin();

  return 0;
}

void* TcpServer::receiveThreadFunction(void* arg){
  TcpServer* server = (TcpServer*)arg;

  while(server->initialized){
    printf("TcpServer: listening for new connection\n");

    struct sockaddr_in client_addr;
    socklen_t client_addr_len = sizeof(client_addr);
    server->client_fd = accept(server->socket_fd, (struct sockaddr*)&client_addr, &client_addr_len);
    if (server->client_fd < 0){
      perror("TcpServer Error: accept");
      server->initialized = false;
      return 0;
    }
    printf("TcpServer: connection accepted\n");

    server->connected = true;
    while(server->isConnected()){
      server->receivePacket();
    }

    printf("TcpServer: connection closed\n");
  }

  return 0;
}

void InetWvIn :: listen( int port, unsigned int nChannels,
                         Stk::StkFormat format, Socket::ProtocolType protocol )
{
    mutex_.lock();

    if ( connected_ ) delete soket_;

    if ( nChannels < 1 ) {
        oStream_ << "InetWvIn()::listen(): the channel argument must be greater than zero.";
        handleError( StkError::FUNCTION_ARGUMENT );
    }

    if ( format == STK_SINT16 ) dataBytes_ = 2;
    else if ( format == STK_SINT32 || format == STK_FLOAT32 ) dataBytes_ = 4;
    else if ( format == STK_FLOAT64 ) dataBytes_ = 8;
    else if ( format == STK_SINT8 ) dataBytes_ = 1;
    else {
        oStream_ << "InetWvIn(): unknown data type specified!";
        handleError( StkError::FUNCTION_ARGUMENT );
    }
    dataType_ = format;

    unsigned long bufferBytes = bufferFrames_ * nBuffers_ * nChannels * dataBytes_;
    if ( bufferBytes > bufferBytes_ ) {
        if ( buffer_) delete [] buffer_;
        buffer_ = (char *) new char[ bufferBytes ];
        bufferBytes_ = bufferBytes;
    }

    data_.resize( bufferFrames_, nChannels );
    lastFrame_.resize( 1, nChannels, 0.0 );

    bufferCounter_ = 0;
    writePoint_ = 0;
    readPoint_ = 0;
    bytesFilled_ = 0;

    if ( protocol == Socket::PROTO_TCP ) {
        TcpServer *socket = new TcpServer( port );
        oStream_ << "InetWvIn:listen(): waiting for TCP connection on port " << socket->port() << " ... ";
        handleError( StkError::STATUS );
        fd_ = socket->accept();
        if ( fd_ < 0) {
            oStream_ << "InetWvIn::listen(): Error accepting TCP connection request!";
            handleError( StkError::PROCESS_SOCKET );
        }
        oStream_ << "InetWvIn::listen(): TCP socket connection made!";
        handleError( StkError::STATUS );
        soket_ = (Socket *) socket;
    }
    else {
        soket_ = new UdpSocket( port );
        fd_ = soket_->id();
    }

    connected_ = true;

    mutex_.unlock();
}

void* TcpServer::RecvParse(void* pData)
{
    TcpServer* pthis = NULL;
    mio2_t m = NULL;
    LPMESSAGE_DATA pMsg = NULL;
    int iLen = 0;

    if (pData) {
        m = ((c2s_t)pData)->mio2;
        pthis = (TcpServer*)(((c2s_t)pData)->pvoid);
    }
    if (!pthis || !m) {
        gvLog(LOG_ERR_SYS, "(TcpServer::RecvParse) receive pool start fail by error param");
        return NULL;
    }

    RecvParser* pRecvParser = new RecvParser();
    if (!pRecvParser) return NULL;

    LPMESSAGE_DATA pErrMsgData = NULL;
    while (pthis->IsRunning()) {
        pMsg = g_MsgListRecv->Get_Msg();
        if (pMsg) {
            gvLog(LOG_MSG, "(TcpServer::RecvParse) entering receive parser... iFd:%d", pMsg->iFd);
            iLen = pRecvParser->ParserData(pMsg);
            gvLog(LOG_MSG, "(TcpServer::RecvParse) MSG: iLen:%d iFd:%d", iLen, pMsg->iFd);
            if (iLen > 0) {
                //put into data parser
                pthis->AddConnect();

                pMsg = MatchPacketHandler::GetInstance()->Handling(pMsg, pErrMsgData);
                if (NULL != pMsg){
                    g_MsgListData->Put_Msg(pMsg);
                }
                else if (NULL != pErrMsgData){
                    pErrMsgData->bSendAndClose = true;
                    g_MsgListSnd->Put_Msg(pErrMsgData);
                }
                else {
                    if (NULL != pMsg) {
                        gvLog(LOG_MSG, "(TcpServer::RecvParse) MSG: MatchPacketHandler() iFd:%d", pMsg->iFd);
                    }
                }
            } else {
                if (iLen == 0) {
                    //maybe (errno == EWOULDBLOCK || errno == EINTR || errno == EAGAIN)
                    gvLog(LOG_MSG, "(TcpServer::RecvParse) (iLen == 0) iFd:%d", pMsg->iFd);
                } else {
                    gvLog(LOG_MSG, "(TcpServer::RecvParse) mio2_close iFd:%d", pMsg->iFd);
                    mio2_close(m, pMsg->iFd);
                }
                gvLog(LOG_MSG, "(TcpServer::RecvParse) MSG: fail iFd:%d pMsg:%p", pMsg->iFd, pMsg);
                PutIdleMsgBuff(pMsg);
            }
            gvLog(LOG_MSG, "(TcpServer::RecvParse) left receive parser... pMsg:%p", pMsg);
        }
        usleep(1);
    }
}

int main(void)
{
	
	TcpServer ts;
	ts.start();
	
	return 0;
}

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    TcpServer w;
    w.show();
    
    return a.exec();
}

void TcpSocketImpl::accept(TcpServer& server, const TcpSocketOptions& o)
{
    int fd = server.impl().accept(o);

    bool inherit = false;
    System::IODeviceImpl::open(fd, inherit);

    log_debug( "accepted " << server.impl().fd() << " => " << this->fd() );
}

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);

    TcpServer *server = new TcpServer(2);

    server->startServer();

    return a.exec();
}

void TcpServer::OnCloseClient( uv_handle_t* handle ) {
  Client& client = *( static_cast<Client*>( handle->data ) );
  TcpServer* socket = client.p_server;
  client.b_connected = false;

  socket->DisposeClient( client.id );

  if ( socket->m_close_client_callback ) {
    socket->m_close_client_callback( client.id );
  }
}

int main(void)
{

	TcpServer *server = new TcpServer();

	server->Start();

	free(server);

	return 0;
}

API_EXPORT int API_CALL initRtspServer(unsigned short port) {
	s_pRtspSrv.reset(new TcpServer<RtspSession>());
	try {
		s_pRtspSrv->start(port);
		return 0;
	} catch (std::exception &ex) {
		s_pRtspSrv.reset();
		WarnL << ex.what();
		return -1;
	}
}

int main( int argc, char **argv )
{
   	
    QApplication a( argc, argv );
    QTranslator translator(0);
    translator.load("tcpserver_zh",".");
    a.installTranslator(&translator);    
    
    TcpServer *tcpserver = new TcpServer();
    tcpserver->show();
    return a.exec();
}