Method do_accept

example/cpp14/echo/async_tcp_echo_server.cpp:77–89

private:
  void do_accept()
  {
    acceptor_.async_accept(socket_,
        [this](boost::system::error_code ec)
        {
          if (!ec)
          {
            std::make_shared<session>(std::move(socket_))->start();
          }

          do_accept();
        });
  }

  tcp::acceptor acceptor_;
  tcp::socket socket_;