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Fix CraftServer.unloadWorld Leak 

The dimension manager was still registered which leaked the entire World
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Aikar 2020-05-08 20:40:42 -04:00
parent f6fc0d4cd4
commit a71a4ec215
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Spigot-Server-Patches/0508-Fix-CraftServer.unloadWorld-Leak.patch Normal file
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@ -0,0 +1,123 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Fri, 8 May 2020 20:30:58 -0400
Subject: [PATCH] Fix CraftServer.unloadWorld Leak
The dimension manager was still registered which leaked the entire World
diff --git a/src/main/java/net/minecraft/server/DimensionManager.java b/src/main/java/net/minecraft/server/DimensionManager.java
index 5724fe6e57d3671b4978aecaf217ac4c2e0d7f82..3af9709a8717b1d9c445c3b04163027177a81711 100644
--- a/src/main/java/net/minecraft/server/DimensionManager.java
+++ b/src/main/java/net/minecraft/server/DimensionManager.java
@@ -20,6 +20,14 @@ public class DimensionManager implements MinecraftSerializable {
private final boolean hasSkyLight;
private final GenLayerZoomer genLayerZoomer;
+ // Paper start
+ public static void unregister(String s, DimensionManager dimensionmanager) {
+ MinecraftServer.getServer().execute(() -> {
+ RegistryMaterials<DimensionManager> registry = (RegistryMaterials<DimensionManager>) IRegistry.DIMENSION_TYPE;
+ registry.deleteValue(new MinecraftKey(s), dimensionmanager);
+ });
+ }
+ // Paper end
public static DimensionManager register(String s, DimensionManager dimensionmanager) {
return (DimensionManager) IRegistry.a(IRegistry.DIMENSION_TYPE, dimensionmanager.id, s, dimensionmanager);
}
diff --git a/src/main/java/net/minecraft/server/RegistryID.java b/src/main/java/net/minecraft/server/RegistryID.java
index e8a48b9a4c999281869dfb85577c2b44d6e30eb7..5335e7acc85f0fe9699e5ed59e5aaae5f381347d 100644
--- a/src/main/java/net/minecraft/server/RegistryID.java
+++ b/src/main/java/net/minecraft/server/RegistryID.java
@@ -9,12 +9,26 @@ import javax.annotation.Nullable;
public class RegistryID<K> implements Registry<K> {
private static final Object a = null;
- private K[] b;
+ private K[] b; // Paper - diff below
private int[] c;
- private K[] d;
+ private K[] d; // Paper - diff below
private int e;
private int f;
private java.util.BitSet usedIds; // Paper
+ // Paper start
+ public void removeValue(K value) {
+ removeValue(value, this.b);
+ removeValue(value, this.d);
+ rehash(this.b.length);
+ }
+ public void removeValue(K value, K[] arr) {
+ for (int i = 0; i < arr.length; i++) {
+ K k = arr[i];
+ if (k == value) {
+ arr[i] = null;
+ }
+ }
+ }
public RegistryID(int i) {
i = (int) ((float) i / 0.8F);
@@ -58,6 +72,7 @@ public class RegistryID<K> implements Registry<K> {
return this.e;
}
+ private void rehash(int i) { d(i); } // Paper - OBFHELPER
private void d(int i) {
K[] ak = this.b;
int[] aint = this.c;
diff --git a/src/main/java/net/minecraft/server/RegistryMaterials.java b/src/main/java/net/minecraft/server/RegistryMaterials.java
index 8477febca23b575da21023b4d7c18bb679cf3b30..dcdd8d38dee89ae7ac404a431e51a61c50b6d45c 100644
--- a/src/main/java/net/minecraft/server/RegistryMaterials.java
+++ b/src/main/java/net/minecraft/server/RegistryMaterials.java
@@ -22,18 +22,23 @@ public class RegistryMaterials<T> extends IRegistryWritable<T> {
private int V;
public RegistryMaterials() {}
+ public T deleteValue(MinecraftKey minecraftkey, T value) {
+ this.b.removeValue(value); // Diff 1
+ this.d = null; // Diff 2
+ return this.c.remove(minecraftkey); // Diff 3
+ }
@Override
public <V extends T> V a(int i, MinecraftKey minecraftkey, V v0) {
- this.b.a(v0, i);
+ this.b.a(v0, i); // Paper - diff above 1
Validate.notNull(minecraftkey);
Validate.notNull(v0);
- this.d = null;
+ this.d = null; // Diff 2
if (this.c.containsKey(minecraftkey)) {
RegistryMaterials.LOGGER.debug("Adding duplicate key '{}' to registry", minecraftkey);
}
- this.c.put(minecraftkey, v0);
+ this.c.put(minecraftkey, v0); // Paper - diff3
if (this.V <= i) {
this.V = i + 1;
}
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
index b89f99a66fe2ab9ad4c956c38c9e4b1d79716c9c..5a40661c1cecde80760f4f87027f7ca8cde6817e 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
@@ -60,6 +60,7 @@ import net.minecraft.server.EntityPlayer;
import net.minecraft.server.EnumDifficulty;
import net.minecraft.server.EnumGamemode;
import net.minecraft.server.IRecipe;
+import net.minecraft.server.IRegistry;
import net.minecraft.server.Item;
import net.minecraft.server.ItemWorldMap;
import net.minecraft.server.Items;
@@ -1099,7 +1100,11 @@ public final class CraftServer implements Server {
}
worlds.remove(world.getName().toLowerCase(java.util.Locale.ENGLISH));
- console.worldServer.remove(handle.getWorldProvider().getDimensionManager());
+ // Paper start
+ DimensionManager dimensionManager = handle.getWorldProvider().getDimensionManager();
+ DimensionManager.unregister(world.getName(), dimensionManager);
+ console.worldServer.remove(dimensionManager);
+ // Paper end
return true;
}