Method connect

example/cpp11/timeouts/blocking_tcp_client.cpp:39–63

{
public:
  void connect(const std::string& host, const std::string& service,
      std::chrono::steady_clock::duration timeout)
  {
    // Resolve the host name and service to a list of endpoints.
    auto endpoints = tcp::resolver(io_context_).resolve(host, service);

    // Start the asynchronous operation itself. The lambda that is used as a
    // callback will update the error variable when the operation completes.
    // The blocking_udp_client.cpp example shows how you can use std::bind
    // rather than a lambda.
    boost::system::error_code error;
    boost::asio::async_connect(socket_, endpoints,
        [&](const boost::system::error_code& result_error,
            const tcp::endpoint& /*result_endpoint*/)
        {
          error = result_error;
        });

    // Run the operation until it completes, or until the timeout.
    run(timeout);

    // Determine whether a connection was successfully established.
    if (error)
      throw boost::system::system_error(error);
  }

  std::string read_line(std::chrono::steady_clock::duration timeout)
  {