Merge pull request #4108 from KJP12/mc1.18/forge/pr/memleak

Use a WeakHashMap in WorldAttached to prevent memory leaks
This commit is contained in:
simibubi 2022-12-12 12:39:08 +01:00 committed by GitHub
commit 0b8e6760be
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23

View File

@ -2,9 +2,9 @@ package com.simibubi.create.foundation.utility;
import java.lang.ref.WeakReference;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.WeakHashMap;
import java.util.function.BiConsumer;
import java.util.function.Consumer;
import java.util.function.Function;
@ -22,7 +22,9 @@ public class WorldAttached<T> {
public WorldAttached(Function<LevelAccessor, T> factory) {
this.factory = factory;
attached = new HashMap<>();
// Weak key hashmaps prevent worlds not existing anywhere else from leaking memory.
// This is only a fallback in the event that unload events fail to fire for any reason.
attached = new WeakHashMap<>();
allMaps.add(new WeakReference<>(attached));
}