udp_socket_actor.pony

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trait tag UDPSocketActor[UDP: UDPBackend ref = UDPRuntimeBackend]
  is AsioEventNotify
  """
  The actor trait a UDP socket actor implements. Provide `_socket()` returning
  the `UDPSocket` the actor owns; the behaviors here deliver ASIO events and
  resumed reads to it. Implement this together with
  `UDPLifecycleEventReceiver` for the socket callbacks.
  """
  fun ref _socket(): UDPSocket[UDP]

  be dispose() =>
    """
    Close the socket.
    """
    _socket().close()

  be _event_notify(event: AsioEventID, flags: U32, arg: U32) =>
    _socket()._event_notify(event, flags)

  be _read_again() =>
    """
    Resume reading: re-enter the read loop after yielding or exhausting the
    per-turn budget.
    """
    _socket().read_again()

  be _finish_initialization() =>
    _socket()._finish_initialization()