Poco的Net模块提供了丰富的网络相关支持，使用也非常方便。

如下代码演示和如何使用TCPServer框架构建高性能多线程网络应用服务器。

#include <iostream>
#include <string>
#include <Poco/Net/ServerSocket.h>
#include <Poco/Net/TCPServer.h>
#include <Poco/Net/TCPServerConnection.h>
#include <Poco/Net/TCPServerConnectionFactory.h>
#include <Poco/Net/DialogSocket.h>
#include <Poco/Util/ServerApplication.h>

using namespace std;
using namespace Poco;
using namespace Poco::Net;
using namespace Poco::Util;

class DialogTCPServerConnection: public TCPServerConnection {

public:
	DialogTCPServerConnection(const StreamSocket& socket): TCPServerConnection(socket),_ds(socket) {
	}
	void run() {
		while(_ds.receiveMessage(_message)) {
			_ds.sendMessage(_message);
		}
	}

private:
	string _message;
	DialogSocket _ds;

};

class DialogServer: public ServerApplication {

public:
	int main(const std::vector<std::string>& args) {
		ServerSocket svs(12345);
		TCPServer srv(new TCPServerConnectionFactoryImpl<DialogTCPServerConnection>(),svs);	
		srv.start();
		waitForTerminationRequest();
		srv.stop();
	}
};

int main(int argc,char **argv) {
	DialogServer dsrv;
	return dsrv.run(argc,argv);	
}

参考编译指令：

g++ -std=c++11 -o server server.cpp -l PocoNet -l PocoFoundation  -l PocoUtil

参考资料：

/usr/include/Poco/Net/TCPServer.h

/usr/include/Poco/Net/TCPServerConnection.h

/usr/include/Poco/Net/TCPServerConnectionFactory.h

/usr/include/Poco/Net/DialogSocket.h

/usr/include/Poco/Util/ServerApplication.h