Poco echo TCPServer

CMakeLists.txt

cmake_minimum_required(VERSION 3.0.0)

project(tcp_server VERSION 0.1
                   DESCRIPTION "Poco echo TCPServer")

set(CMAKE_CXX_STANDARD 17)

find_package(Poco REQUIRED Foundation Net)

# check if Poco library was found
if(Poco_FOUND)
    message ("Poco library found.")
else()
    message (FATAL_ERROR "Cannot find Poco library.")
endif()

add_executable(tcp_server main.cpp)
target_link_libraries(tcp_server Poco::Foundation Poco::Net)

main.cpp

#include "Poco/Net/Socket.h"
#include "Poco/Net/TCPServer.h"
#include "Poco/Net/TCPServerConnection.h"
#include "Poco/Net/TCPServerConnectionFactory.h"
#include "Poco/Net/TCPServerParams.h"
#include <iostream>

class newConnection : public Poco::Net::TCPServerConnection {

public:
  newConnection(const Poco::Net::StreamSocket &s)
      : Poco::Net::TCPServerConnection(s) {}

  void run() override {
    Poco::Net::StreamSocket &ss = socket();
    
    try {
      char buffer[256];
      int n = ss.receiveBytes(buffer, sizeof(buffer));
      
      std::cout << "Received: " << buffer;
      
      while (n > 0) {
        ss.sendBytes(buffer, n);
        n = ss.receiveBytes(buffer, sizeof(buffer));
        std::cout << "Received: " << buffer;
      }
    } catch (Poco::Exception &exc) {
      std::cerr << "EchoConnection: " << exc.displayText() << std::endl;
    }
  }
};

int main() {
  // Create the server socket to listen
  Poco::Net::ServerSocket socket(1234);

  // Configure some server parameters
  Poco::Net::TCPServerParams *pParams = new Poco::Net::TCPServerParams();
  pParams->setMaxThreads(4);
  pParams->setMaxQueued(4);
  pParams->setThreadIdleTime(100);

  // Create the server
  Poco::Net::TCPServer myserver(
      new Poco::Net::TCPServerConnectionFactoryImpl<newConnection>(), socket,
      pParams);
  myserver.start();

  while (true)
    ;

  return 0;
}