auto io_service = std::make_shared<boost::asio::io_service>();

echo_serverserver(

echo_server::options(handler).io_service(io_service).port("8000"));

server.run();

boost::asio::signal_setsignals(*io_service, SIGINT, SIGTERM);

signals.async_wait([&server](const boost::system::error_code& ec,

int/* signal_number*/) {

if (!ec) {

std::cout <<"Stopping server...";

server.stop();

std::cout <<"done.\n";

}

});

std::cout <<"Press Ctrl+C to stop the server.\n";

server.run();

return EXIT_SUCCESS;

}catch (const std::exception& error) {

std::cerr << error.what() << std::endl;