Package org.gnome.gobject

Interface Closure.MarshalCallback

All Superinterfaces:

FunctionPointer

Enclosing class:

Closure

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 Closure.MarshalCallback
extends FunctionPointer

Functional interface declaration of the MarshalCallback callback.

See Also:

• run(org.gnome.gobject.Closure, org.gnome.gobject.Value, int, org.gnome.gobject.Value, java.lang.foreign.MemorySegment, java.lang.foreign.MemorySegment)

Method Summary

Modifier and Type	Method	Description
void	run(Closure closure, Value returnValue, int nParamValues, Value paramValues, MemorySegment invocationHint, MemorySegment marshalData)
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(java.lang.foreign.MemorySegment, java.lang.foreign.MemorySegment, int, java.lang.foreign.MemorySegment, java.lang.foreign.MemorySegment, java.lang.foreign.MemorySegment) method.
default void	upcall(MemorySegment closure, MemorySegment returnValue, int nParamValues, MemorySegment paramValues, MemorySegment invocationHint, MemorySegment marshalData)	The upcall method is called from native code.

Method Details

run

void run(Closure closure,
 Value returnValue,
 int nParamValues,
 Value paramValues,
 MemorySegment invocationHint,
 MemorySegment marshalData)

upcall

default void upcall(MemorySegment closure,
 MemorySegment returnValue,
 int nParamValues,
 MemorySegment paramValues,
 MemorySegment invocationHint,
 MemorySegment marshalData)

The upcall method is called from native code. The parameters are marshaled and run(org.gnome.gobject.Closure, org.gnome.gobject.Value, int, org.gnome.gobject.Value, java.lang.foreign.MemorySegment, 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, int, java.lang.foreign.MemorySegment, 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