Package io.github.jwharm.javagi.interop

Class Arenas

java.lang.Object

io.github.jwharm.javagi.interop.Arenas

public class Arenas
extends Object

Keeps a list of open Arenas that will be closed in a DestroyNotify callback. The DestroyNotify callback will know which Arena to close, based on the hashcode that is passed in the user_data parameter.

Field Summary

Fields

Modifier and Type	Field	Description
static final MemorySegment	CLOSE_CB_SYM	The upcall stub for the DestroyNotify callback method

Constructor Summary

Constructors

Constructor	Description
Arenas()

Method Summary

Modifier and Type	Method	Description
static MemorySegment	cacheArena(Arena arena)	This will add the Arena to the global static list of open arenas, and return a pointer to the hashcode of the Arena.
static void	close_cb(MemorySegment data)	This is called by native code when it runs the DestroyNotify callback.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

CLOSE_CB_SYM

public static final MemorySegment CLOSE_CB_SYM

The upcall stub for the DestroyNotify callback method

Constructor Details

Arenas

public Arenas()

Method Details

close_cb

public static void close_cb(MemorySegment data)

This is called by native code when it runs the DestroyNotify callback. It will close the accompanying Arena.

Parameters:

data - pointer to the hashcode of the Arena to close

cacheArena

public static MemorySegment cacheArena(Arena arena)

This will add the Arena to the global static list of open arenas, and return a pointer to the hashcode of the Arena.

Parameters:

arena - the Arena to cache

Returns:

a pointer to the hashcode of the Arena