Method poll

bindings/python/pylibremidi.cpp:198–202

  }

  void poll() {
    poll_queue::midi_out_msg m;
    while (queue.try_dequeue(m))
      boost::variant2::visit(*this, std::move(m));
  }

  void operator()(const poll_queue::error_message &msg) const noexcept { python_midi1_callbacks.on_error(msg.msg, {}); }
  void operator()(const poll_queue::warning_message &msg) const noexcept { python_midi1_callbacks.on_warning(msg.msg, {}); }