Package org.gnome.glib

Interface ErrorCopyFunc

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 ErrorCopyFunc
extends FunctionPointer

Functional interface declaration of the ErrorCopyFunc callback.

See Also:

• run(org.gnome.glib.GError, org.gnome.glib.GError)

Method Summary

Modifier and Type	Method	Description
void	run(GError srcError, GError destError)	Specifies the type of function which is called when an extended error instance is copied.
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(java.lang.foreign.MemorySegment, java.lang.foreign.MemorySegment) method.
default void	upcall(MemorySegment srcError, MemorySegment destError)	The upcall method is called from native code.

Method Details

run

void run(GError srcError,
 GError destError)

Specifies the type of function which is called when an extended error instance is copied. It is passed the pointer to the destination error and source error, and should copy only the fields of the private data from srcError to destError.

Normally, it is better to use G_DEFINE_EXTENDED_ERROR(), as it already takes care of getting the private data from srcError and destError.

Since:

2.68

upcall

default void upcall(MemorySegment srcError,
 MemorySegment destError)

The upcall method is called from native code. The parameters are marshaled and run(org.gnome.glib.GError, org.gnome.glib.GError) 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 arena in which the function pointer is allocated

Returns:

the native function pointer