tcp_listen_notify.pony

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interface TCPListenNotify
  """
  Notifications for TCP listeners.

  For an example of using this class, please see the documentation for the
  `TCPListener` actor.
  """
  fun ref listening(listen: TCPListener ref) =>
    """
    Called when the listener has been bound to an address.
    """
    None

  fun ref not_listening(listen: TCPListener ref)
    """
    Called if it wasn't possible to bind the listener to an address.

    It is expected to implement proper error handling. You need to opt in to
    ignoring errors, which can be implemented like this:

    ```pony
    fun ref not_listening(listen: TCPListener ref) =>
      None
    ```
    """

  fun ref closed(listen: TCPListener ref) =>
    """
    Called when the listener is closed.
    """
    None

  fun ref connected(listen: TCPListener ref): TCPConnectionNotify iso^ ?
    """
    Create a new TCPConnectionNotify to attach to a new TCPConnection for a
    newly established connection to the server.
    """