Interface PadUnlinkFunction

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 PadUnlinkFunction extends FunctionPointer

Functional interface declaration of the PadUnlinkFunction callback.

See Also:

  • Method Details

    • run

      void run(Pad pad, @Nullable GstObject parent)

      Function signature to handle a unlinking the pad prom its peer.

      The pad's lock is already held when the unlink function is called, so most pad functions cannot be called from within the callback.

      Parameters:
      pad - the GstPad that is linked.
      parent - the parent of pad. If the GST_PAD_FLAG_NEED_PARENT flag is set, parent is guaranteed to be not-null and remain valid during the execution of this function.

    • upcall

      default void upcall(MemorySegment pad, MemorySegment parent)
      The upcall method is called from native code. The parameters are marshaled and run(Pad, GstObject) 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