Module org.freedesktop.cairo

Package org.freedesktop.cairo

Interface DestroyFunc

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 interface DestroyFunc

DestroyFunc the type of function which is called when a data element is destroyed. It is passed the pointer to the data element and should free any memory and resources allocated for it.

Since:

1.0

Method Summary

Modifier and Type	Method	Description
void	destroy(MemorySegment data)	The function to implement as callback in a destroy operation.
default MemorySegment	toCallback(Arena arena)	Generates an upcall stub, a C function pointer that will call upcall(java.lang.foreign.MemorySegment).
default void	upcall(MemorySegment data)	The callback that is executed by native code.

Method Details

destroy

void destroy(MemorySegment data)

The function to implement as callback in a destroy operation.

Parameters:

data - the data element being destroyed.

Since:

1.0

upcall

default void upcall(MemorySegment data)

The callback that is executed by native code. This method marshals the parameters and calls destroy(java.lang.foreign.MemorySegment).

Parameters:

data - the data element being destroyed.

Since:

1.0

toCallback

default MemorySegment toCallback(Arena arena)

Generates an upcall stub, a C function pointer that will call upcall(java.lang.foreign.MemorySegment).

Parameters:

arena - the arena in which the upcall stub will be allocated

Returns:

the function pointer of the upcall stub

Since:

1.0