Interface Bus.SyncMessageCallback

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.SyncMessageCallback extends FunctionPointer

Functional interface declaration of the SyncMessageCallback callback.

See Also:

  • Method Details

    • run

      void run(@Nullable Message message)

      A message has been posted on the bus. This signal is emitted from the thread that posted the message so one has to be careful with locking.

      This signal will not be emitted by default, you have to call gst_bus_enable_sync_message_emission() before.

    • 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