Package org.freedesktop.gstreamer.base

Interface DataQueue.EmptyCallback

All Superinterfaces:

FunctionPointer

Enclosing class:

DataQueue

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 DataQueue.EmptyCallback
extends FunctionPointer

Functional interface declaration of the EmptyCallback callback.

See Also:

• run()

Method Summary

Modifier and Type	Method	Description
void	run()	Reports that the queue became empty (empty).
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(java.lang.foreign.MemorySegment) method.
default void	upcall(MemorySegment sourceDataQueue)	The upcall method is called from native code.

Method Details

run

void run()

Reports that the queue became empty (empty). A queue is empty if the total amount of visible items inside it (num-visible, time, size) is lower than the boundary values which can be set through the GObject properties.

upcall

default void upcall(MemorySegment sourceDataQueue)

The upcall method is called from native code. The parameters are marshaled and run() is executed.

toCallback

default MemorySegment toCallback(Arena arena)

Creates a native function pointer to the upcall(java.lang.foreign.MemorySegment) method.

Specified by:

toCallback in interface FunctionPointer

Parameters:

arena - the arena in which the function pointer is allocated

Returns:

the native function pointer