Package org.gnome.gobject

Interface ClosureMarshal

All Superinterfaces:

FunctionPointer

All Known Subinterfaces:

SignalCMarshaller

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 ClosureMarshal
extends FunctionPointer

Functional interface declaration of the ClosureMarshal callback.

See Also:

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

Method Summary

Modifier and Type	Method	Description
void	run(Closure closure, @Nullable Value returnValue, @Nullable Value @Nullable [] paramValues, @Nullable MemorySegment invocationHint, @Nullable MemorySegment marshalData)	The type used for marshaller functions.
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,
 @Nullable Value returnValue,
 @Nullable Value @Nullable [] paramValues,
 @Nullable MemorySegment invocationHint,
 @Nullable MemorySegment marshalData)

The type used for marshaller functions.

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, 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 arena in which the function pointer is allocated

Returns:

the native function pointer