sigslot

System Information

Definition Index

• SIGSLOT

  No documentation provided.

  • EXTERNAL SPECIAL-VARIABLE

    *QUEUE-SIZE*

    Source

    The capacity of the task queue.

    This is by default set to 20. When the queue is full, the thread calling EMIT will block until there's room for one more.

  • EXTERNAL SPECIAL-VARIABLE

    *UNHANDLED-CONDITION-HANDLER*

    Source

    The condition handler to call when an a condition is signaled and not handled in a queued slot.

    The default handler will issue a WARN with the condition.

  • EXTERNAL CLASS

    OBSERVABLE

    Source

    An OBSERVABLE object can register multiple observers that get notified when the function NOTIFY is called.

    All methods are thread safe and the UPDATE method is dispatched on the same thread where the NOTIFY method is called.

  • EXTERNAL FUNCTION

    MAKE-SIGNAL

    Source

    Creates a SIGNAL ready to be connected to.

    Ideally, you would call this function from the :INITFORM of a class slot.

  • EXTERNAL GENERIC-FUNCTION

    CONNECT

    • SIGNAL
    • SLOT
    • OBJECT
    • &KEY
    • DISPATCH

    Source

    Connects a SIGNAL to a SLOT function for a given OBJECT. DISPATCH can be one of :DIRECT (default), :QUEUED or :MAIN-THREAD.

    Returns T if successfully connected to SIGNAL, otherwise NIL.

  • EXTERNAL GENERIC-FUNCTION

    DEREGISTER-OBSERVER

    • OBSERVABLE
    • OBJECT

    Source

    Deregister an observer OBJECT from OBSERVABLE so it no longer receives notifications.

  • EXTERNAL GENERIC-FUNCTION

    DISCONNECT

    • SIGNAL
    • OBJECT

    Source

    Disconnects a SIGNAL from a slot of the given OBJECT.

    Returns T if successfully disconnected from SIGNAL, otherwise NIL.

  • EXTERNAL GENERIC-FUNCTION

    EMIT

    • SIGNAL
    • OBJECT
    • &REST
    • REST

    Source

    Emits a SIGNAL from OBJECT to all connected slots. Additional arguments can be added to the method call and are used when calling the slot.

  • EXTERNAL GENERIC-FUNCTION

    NOTIFY

    • OBSERVABLE
    • &REST
    • REST

    Source

    Notify an OBSERVABLE object's observers by calling UPDATE across the entire observer collection. All extra arguments specified in REST are applied to UPDATE.

  • EXTERNAL GENERIC-FUNCTION

    OBSERVER-COUNT

    • OBSERVABLE

    Source

    Returns the number of valid observers for OBSERVABLE.

  • EXTERNAL GENERIC-FUNCTION

    REGISTER-OBSERVER

    • OBSERVABLE
    • OBJECT

    Source

    Register an observer OBJECT to receive notifications.

  • EXTERNAL GENERIC-FUNCTION

    UPDATE

    • OBSERVABLE
    • OBSERVER
    • &REST
    • REST

    Source

    Called by an OBSERVABLE object to notify an OBSERVER when an event occurred.

    You MUST implement a specialization of this method for the intended OBSERVER in order to receive updates.