Interface Bus.MessageCallback

All Superinterfaces:
FunctionPointer
Enclosing class:
Bus
Functional Interface:
This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
@FunctionalInterface public static interface Bus.MessageCallback extends FunctionPointer

Functional interface declaration of the MessageCallback callback.

See Also:

  • Method Details

    • run

      void run(@Nullable Message message)
      A message has been posted on the bus. This signal is emitted from a GSource added to the mainloop. this signal will only be emitted when there is a GMainLoop running.

    • upcall

      default void upcall(MemorySegment sourceBus, MemorySegment message)
      The upcall method is called from native code. The parameters are marshaled and run(Message) is executed.

    • toCallback

      default MemorySegment toCallback(Arena arena)
      Creates a native function pointer to the upcall(MemorySegment, MemorySegment) method.
      Specified by:
      toCallback in interface FunctionPointer
      Parameters:
      arena - the arena in which the function pointer is allocated
      Returns:
      the native function pointer