Paper/CraftBukkit-Patches/0012-Async-Operation-Catching.patch

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From 10ca32f973eaccc4eab615b966b195c90555c916 Mon Sep 17 00:00:00 2001
From: md_5 <md_5@live.com.au>
Date: Thu, 7 Mar 2013 20:12:46 +1100
Subject: [PATCH] Async Operation Catching
Catch and throw an exception when a potentially unsafe operation occurs on a thread other than the main server thread.
diff --git a/src/main/java/net/minecraft/server/EntityTracker.java b/src/main/java/net/minecraft/server/EntityTracker.java
index 9e2b76f..d7efe3e 100644
--- a/src/main/java/net/minecraft/server/EntityTracker.java
+++ b/src/main/java/net/minecraft/server/EntityTracker.java
@@ -89,6 +89,7 @@ public class EntityTracker {
}
public void addEntity(Entity entity, int i, int j, boolean flag) {
+ if (Thread.currentThread() != MinecraftServer.getServer().primaryThread) throw new IllegalStateException("Asynchronous entity track!"); // Spigot
if (i > this.d) {
i = this.d;
}
@@ -124,6 +125,7 @@ public class EntityTracker {
}
public void untrackEntity(Entity entity) {
+ if (Thread.currentThread() != MinecraftServer.getServer().primaryThread) throw new IllegalStateException("Asynchronous entity untrack!"); // Spigot
if (entity instanceof EntityPlayer) {
EntityPlayer entityplayer = (EntityPlayer) entity;
Iterator iterator = this.b.iterator();
diff --git a/src/main/java/net/minecraft/server/EntityTrackerEntry.java b/src/main/java/net/minecraft/server/EntityTrackerEntry.java
2013-05-01 14:39:55 +08:00
index 5c03732..5f3c780 100644
--- a/src/main/java/net/minecraft/server/EntityTrackerEntry.java
+++ b/src/main/java/net/minecraft/server/EntityTrackerEntry.java
@@ -286,6 +286,7 @@ public class EntityTrackerEntry {
}
public void updatePlayer(EntityPlayer entityplayer) {
+ if (Thread.currentThread() != MinecraftServer.getServer().primaryThread) throw new IllegalStateException("Asynchronous player tracker update!"); // Spigot
if (entityplayer != this.tracker) {
double d0 = entityplayer.locX - (double) (this.xLoc / 32);
double d1 = entityplayer.locZ - (double) (this.zLoc / 32);
@@ -474,6 +475,7 @@ public class EntityTrackerEntry {
}
public void clear(EntityPlayer entityplayer) {
+ if (Thread.currentThread() != MinecraftServer.getServer().primaryThread) throw new IllegalStateException("Asynchronous player tracker clear!"); // Spigot
if (this.trackedPlayers.contains(entityplayer)) {
this.trackedPlayers.remove(entityplayer);
entityplayer.removeQueue.add(Integer.valueOf(this.tracker.id));
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index a0c61a1..1afc717 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -924,6 +924,7 @@ public abstract class World implements IBlockAccess {
}
public boolean addEntity(Entity entity, SpawnReason spawnReason) { // Changed signature, added SpawnReason
+ if (Thread.currentThread() != MinecraftServer.getServer().primaryThread) throw new IllegalStateException("Asynchronous entity add!"); // Spigot
if (entity == null) return false;
// CraftBukkit end
@@ -1030,6 +1031,7 @@ public abstract class World implements IBlockAccess {
}
public void removeEntity(Entity entity) {
+ if (Thread.currentThread() != MinecraftServer.getServer().primaryThread) throw new IllegalStateException("Asynchronous entity remove!"); // Spigot
entity.die();
if (entity instanceof EntityHuman) {
this.players.remove(entity);
@@ -2447,6 +2449,7 @@ public abstract class World implements IBlockAccess {
2013-05-01 14:39:55 +08:00
}
public void a(List list) {
+ if (Thread.currentThread() != MinecraftServer.getServer().primaryThread) throw new IllegalStateException("Asynchronous entity world add!"); // Spigot
// CraftBukkit start
Entity entity = null;
for (int i = 0; i < list.size(); ++i) {
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
2013-06-15 20:01:15 +08:00
index d0e6d6f..d49393d 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
2013-06-15 20:01:15 +08:00
@@ -239,6 +239,7 @@ public class CraftWorld implements World {
}
public boolean unloadChunkRequest(int x, int z, boolean safe) {
+ if (Thread.currentThread() != MinecraftServer.getServer().primaryThread) throw new IllegalStateException("Asynchronous chunk unload!"); // Spigot
if (safe && isChunkInUse(x, z)) {
return false;
}
2013-06-15 20:01:15 +08:00
@@ -249,6 +250,7 @@ public class CraftWorld implements World {
}
public boolean unloadChunk(int x, int z, boolean save, boolean safe) {
+ if (Thread.currentThread() != MinecraftServer.getServer().primaryThread) throw new IllegalStateException("Asynchronous chunk unload!"); // Spigot
if (safe && isChunkInUse(x, z)) {
return false;
}
2013-06-15 20:01:15 +08:00
@@ -316,6 +318,7 @@ public class CraftWorld implements World {
}
public boolean loadChunk(int x, int z, boolean generate) {
+ if (Thread.currentThread() != MinecraftServer.getServer().primaryThread) throw new IllegalStateException("Asynchronous chunk load!"); // Spigot
chunkLoadCount++;
if (generate) {
// Use the default variant of loadChunk when generate == true.
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
2013-06-11 10:10:31 +08:00
index df07a9b..7cae665 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -214,6 +214,7 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
}
public void kickPlayer(String message) {
+ if (Thread.currentThread() != MinecraftServer.getServer().primaryThread) throw new IllegalStateException("Asynchronous player kick!"); // Spigot
if (getHandle().playerConnection == null) return;
getHandle().playerConnection.disconnect(message == null ? "" : message);
--
1.8.1.2