Package org.gnome.glib

Interface DuplicateFunc

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("io.github.jwharm.JavaGI")
public interface DuplicateFunc
extends FunctionPointer

Functional interface declaration of the DuplicateFunc callback.

See Also:

• run(java.lang.foreign.MemorySegment)

Method Summary

Modifier and Type	Method	Description
MemorySegment	run(@Nullable MemorySegment data)	The type of functions that are used to 'duplicate' an object.
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(java.lang.foreign.MemorySegment, java.lang.foreign.MemorySegment) method.
default MemorySegment	upcall(MemorySegment data, MemorySegment userData)	The upcall method is called from native code.

Method Details

run

MemorySegment run(@Nullable
 @Nullable MemorySegment data)

The type of functions that are used to 'duplicate' an object. What this means depends on the context, it could just be incrementing the reference count, if data is a ref-counted object.

upcall

default MemorySegment upcall(MemorySegment data,
 MemorySegment userData)

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

toCallback

default MemorySegment toCallback(Arena arena)

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

Specified by:

toCallback in interface FunctionPointer

Parameters:

arena - the function pointer will be allocated in this arena

Returns:

the native function pointer