websocket c++ example

//============================================================================
// Name        : websocket.cpp
// Author      :
// Version     :
// Copyright   : Your copyright notice
// Description : Hello World in C++, Ansi-style
//============================================================================

#include <iostream>

#include <Poco/Net/WebSocket.h>
#include <Poco/Net/HTTPClientSession.h>
#include <Poco/Net/HTTPRequest.h>
#include <Poco/Net/HTTPResponse.h>
#include <Poco/Net/ServerSocket.h>
#include <Poco/Net/NetException.h>
#include <Poco/Exception.h>

using Poco::Net::HTTPClientSession;
using Poco::Net::HTTPRequest;
using Poco::Net::HTTPResponse;
using Poco::Net::HTTPServerRequest;
using Poco::Net::HTTPServerResponse;
using Poco::Net::WebSocket;
using Poco::Net::WebSocketException;
using Poco::Exception;

using namespace std;

int ws_main() {
	char buffer[1024];
	int flags;
	int n;
	std::string payload;

	try {
		HTTPClientSession cs("echo.websocket.org", 80);
		HTTPRequest request(HTTPRequest::HTTP_GET, "/", "HTTP/1.1");
		HTTPResponse response;
		std::string cmd;

		WebSocket * ws = new WebSocket(cs, request, response); // Causes the timeout

		payload = "SGClient: Hello World!";
		cout << "Send: SGClient: Hello World!" << endl;
		ws->sendFrame(payload.data(), payload.size(), WebSocket::FRAME_TEXT);
		n = ws->receiveFrame(buffer, sizeof(buffer), flags);
		buffer[n] = '\0';
		cout << "Received: " << buffer << endl;

		while (cmd != "exit") {
			cmd = "";
			cout << "Please input[exit]:";
			std::cin >> cmd;
			ws->sendFrame(cmd.data(), cmd.size(), WebSocket::FRAME_TEXT);
			n = ws->receiveFrame(buffer, sizeof(buffer), flags);
			buffer[n] = '\0';
			if (n > 0) {
				std::cout << "Receive: " << buffer << std::endl;
			}
		}

		ws->shutdown();
	} catch (Exception ex) {
		cout << ex.displayText() << endl;
		cout << ex.what() << endl;
		return -1;
	}
}