DestroyNotify (java-gi API)

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 DestroyNotify extends FunctionPointer

Functional interface declaration of the DestroyNotify callback.

See Also:

Method Summary

Modifier and Type

Method

Description

void

run(@Nullable MemorySegment data)

Specifies the type of function which is called when a data element is destroyed.

default MemorySegment

toCallback(Arena arena)

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

default void

upcall(MemorySegment data)

The upcall method is called from native code.

Method Details
- run
  
  void run(@Nullable MemorySegment data)
  
  Specifies 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.
- upcall
  
  default void upcall(MemorySegment data)
  
  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) method.
  
  Specified by:
  
  toCallback in interface FunctionPointer
  
  Parameters:
  
  arena - the arena in which the function pointer is allocated
  
  Returns:
  
  the native function pointer