Interface CancellableSourceFunc

All Superinterfaces:
FunctionPointer
Functional Interface:
This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
@FunctionalInterface @Generated("org.javagi.JavaGI") public interface CancellableSourceFunc extends FunctionPointer

Functional interface declaration of the CancellableSourceFunc callback.

See Also:

  • Method Details

    • run

      boolean run(@Nullable Cancellable cancellable, @Nullable MemorySegment data)
      This is the function type of the callback used for the GSource returned by g_cancellable_source_new().
      Parameters:
      cancellable - the GCancellable
      data - data passed in by the user.
      Returns:
      it should return false if the source should be removed.
      Since:
      2.28

    • upcall

      default int upcall(MemorySegment cancellable, MemorySegment data)
      The upcall method is called from native code. The parameters are marshaled and run(Cancellable, MemorySegment) 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