testserver/CraftBukkit-Patches/0050-Guard-entity-list.patch

86 lines
3.1 KiB
Diff

From 38c40e66efdfe76a60e5c1e508dc21bae94b4733 Mon Sep 17 00:00:00 2001
From: Ammar Askar <ammar@ammaraskar.com>
Date: Sat, 3 Aug 2013 21:42:00 +0500
Subject: [PATCH] Guard entity list
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index 5fb3fbf..0923296 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -29,7 +29,25 @@ import org.bukkit.event.weather.ThunderChangeEvent;
public abstract class World implements IBlockAccess {
public boolean d;
- public List entityList = new ArrayList();
+ public List entityList = new ArrayList() { // Spigot start - guard entity list from removals
+ @Override
+ public Object remove(int index) {
+ guard();
+ return super.remove(index);
+ }
+
+ @Override
+ public boolean remove(Object o) {
+ guard();
+ return super.remove(o);
+ }
+
+ private void guard() {
+ if (guardEntityList) {
+ throw new java.util.ConcurrentModificationException();
+ }
+ }
+ }; // Spigot end
protected List f = new ArrayList();
public Set tileEntityList = new HashSet(); // CraftBukkit - ArrayList -> HashSet
private List a = new ArrayList();
@@ -78,6 +96,7 @@ public abstract class World implements IBlockAccess {
int[] I;
// Spigot start
+ private boolean guardEntityList = false;
protected final gnu.trove.map.hash.TLongShortHashMap chunkTickList;
protected float growthOdds = 100;
protected float modifiedOdds = 100;
@@ -1032,7 +1051,12 @@ public abstract class World implements IBlockAccess {
if (index <= this.tickPosition) {
this.tickPosition--;
}
+ // Spigot start
+ boolean isGuarding = guardEntityList;
+ guardEntityList = false;
this.entityList.remove(index);
+ guardEntityList = isGuarding;
+ // Spigot end
}
// CraftBukkit end
@@ -1252,6 +1276,7 @@ public abstract class World implements IBlockAccess {
org.spigotmc.ActivationRange.activateEntities(this); // Spigot
timings.entityTick.startTiming(); // Spigot
+ guardEntityList = true; // Spigot
// CraftBukkit start - Use field for loop variable
for (this.tickPosition = 0; this.tickPosition < this.entityList.size(); ++this.tickPosition) {
entity = (Entity) this.entityList.get(this.tickPosition);
@@ -1300,12 +1325,15 @@ public abstract class World implements IBlockAccess {
this.getChunkAt(j, k).b(entity);
}
+ guardEntityList = false; // Spigot
this.entityList.remove(this.tickPosition--); // CraftBukkit - Use field for loop variable
+ guardEntityList = true; // Spigot
this.b(entity);
}
this.methodProfiler.b();
}
+ guardEntityList = false; // Spigot
timings.entityTick.stopTiming(); // Spigot
this.methodProfiler.c("blockEntities");
--
1.8.4.msysgit.0