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Paper/CraftBukkit-Patches/0010-Async-Operation-Catching.patch
md_5 bfc8900321 Merge in changes.
2015-01-16 10:39:55 -06:00

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From 8d555f255d398001002608e6c2217f2fa3fdde66 Mon Sep 17 00:00:00 2001
From: md_5 <git@md-5.net>
Date: Tue, 25 Mar 2014 16:10:01 +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/Block.java b/src/main/java/net/minecraft/server/Block.java
index 12e2b79..9a19752 100644
--- a/src/main/java/net/minecraft/server/Block.java
+++ b/src/main/java/net/minecraft/server/Block.java
@@ -268,9 +268,13 @@ public class Block {
return 10;
}
- public void onPlace(World world, BlockPosition blockposition, IBlockData iblockdata) {}
+ public void onPlace(World world, BlockPosition blockposition, IBlockData iblockdata) {
+ org.spigotmc.AsyncCatcher.catchOp( "block onPlace"); // Spigot
+ }
- public void remove(World world, BlockPosition blockposition, IBlockData iblockdata) {}
+ public void remove(World world, BlockPosition blockposition, IBlockData iblockdata) {
+ org.spigotmc.AsyncCatcher.catchOp( "block remove"); // Spigot
+ }
public int a(Random random) {
return 1;
diff --git a/src/main/java/net/minecraft/server/EntityLiving.java b/src/main/java/net/minecraft/server/EntityLiving.java
index 0d76a99..d2a0954 100644
--- a/src/main/java/net/minecraft/server/EntityLiving.java
+++ b/src/main/java/net/minecraft/server/EntityLiving.java
@@ -549,6 +549,7 @@ public abstract class EntityLiving extends Entity {
}
public void addEffect(MobEffect mobeffect) {
+ org.spigotmc.AsyncCatcher.catchOp( "effect add"); // Spigot
if (this.d(mobeffect)) {
if (this.effects.containsKey(Integer.valueOf(mobeffect.getEffectId()))) {
((MobEffect) this.effects.get(Integer.valueOf(mobeffect.getEffectId()))).a(mobeffect);
diff --git a/src/main/java/net/minecraft/server/EntityTracker.java b/src/main/java/net/minecraft/server/EntityTracker.java
index c9058db..350f2f7 100644
--- a/src/main/java/net/minecraft/server/EntityTracker.java
+++ b/src/main/java/net/minecraft/server/EntityTracker.java
@@ -94,6 +94,7 @@ public class EntityTracker {
}
public void addEntity(Entity entity, int i, int j, boolean flag) {
+ org.spigotmc.AsyncCatcher.catchOp( "entity track"); // Spigot
if (i > this.e) {
i = this.e;
}
@@ -129,6 +130,7 @@ public class EntityTracker {
}
public void untrackEntity(Entity entity) {
+ org.spigotmc.AsyncCatcher.catchOp( "entity untrack"); // Spigot
if (entity instanceof EntityPlayer) {
EntityPlayer entityplayer = (EntityPlayer) entity;
Iterator iterator = this.c.iterator();
diff --git a/src/main/java/net/minecraft/server/EntityTrackerEntry.java b/src/main/java/net/minecraft/server/EntityTrackerEntry.java
index 1204c56..640d7ff 100644
--- a/src/main/java/net/minecraft/server/EntityTrackerEntry.java
+++ b/src/main/java/net/minecraft/server/EntityTrackerEntry.java
@@ -308,6 +308,7 @@ public class EntityTrackerEntry {
}
public void updatePlayer(EntityPlayer entityplayer) {
+ org.spigotmc.AsyncCatcher.catchOp( "player tracker update"); // Spigot
if (entityplayer != this.tracker) {
if (this.c(entityplayer)) {
if (!this.trackedPlayers.contains(entityplayer) && (this.e(entityplayer) || this.tracker.attachedToPlayer)) {
@@ -538,6 +539,7 @@ public class EntityTrackerEntry {
}
public void clear(EntityPlayer entityplayer) {
+ org.spigotmc.AsyncCatcher.catchOp( "player tracker clear"); // Spigot
if (this.trackedPlayers.contains(entityplayer)) {
this.trackedPlayers.remove(entityplayer);
entityplayer.d(this.tracker);
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index 30b5fed..86be044 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -893,6 +893,7 @@ public abstract class World implements IBlockAccess {
}
public boolean addEntity(Entity entity, SpawnReason spawnReason) { // Changed signature, added SpawnReason
+ org.spigotmc.AsyncCatcher.catchOp( "entity add"); // Spigot
if (entity == null) return false;
// CraftBukkit end
int i = MathHelper.floor(entity.locX / 16.0D);
@@ -1000,6 +1001,7 @@ public abstract class World implements IBlockAccess {
}
public void removeEntity(Entity entity) {
+ org.spigotmc.AsyncCatcher.catchOp( "entity remove"); // Spigot
entity.die();
if (entity instanceof EntityHuman) {
this.players.remove(entity);
@@ -2418,6 +2420,7 @@ public abstract class World implements IBlockAccess {
}
public void b(Collection collection) {
+ org.spigotmc.AsyncCatcher.catchOp( "entity world add"); // Spigot
// CraftBukkit start
// this.entityList.addAll(collection);
Iterator iterator = collection.iterator();
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
index 5ef7d97..faefbe7 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
@@ -165,6 +165,7 @@ public class CraftWorld implements World {
}
public boolean unloadChunkRequest(int x, int z, boolean safe) {
+ org.spigotmc.AsyncCatcher.catchOp( "chunk unload"); // Spigot
if (safe && isChunkInUse(x, z)) {
return false;
}
@@ -175,6 +176,7 @@ public class CraftWorld implements World {
}
public boolean unloadChunk(int x, int z, boolean save, boolean safe) {
+ org.spigotmc.AsyncCatcher.catchOp( "chunk unload"); // Spigot
if (safe && isChunkInUse(x, z)) {
return false;
}
@@ -242,6 +244,7 @@ public class CraftWorld implements World {
}
public boolean loadChunk(int x, int z, boolean generate) {
+ org.spigotmc.AsyncCatcher.catchOp( "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
index fed7b4d..9268686 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 {
@Override
public void kickPlayer(String message) {
+ org.spigotmc.AsyncCatcher.catchOp( "player kick"); // Spigot
if (getHandle().playerConnection == null) return;
getHandle().playerConnection.disconnect(message == null ? "" : message);
diff --git a/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftScoreboardManager.java b/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftScoreboardManager.java
index 87259f1..295aed2 100644
--- a/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftScoreboardManager.java
+++ b/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftScoreboardManager.java
@@ -42,6 +42,7 @@ public final class CraftScoreboardManager implements ScoreboardManager {
}
public CraftScoreboard getNewScoreboard() {
+ org.spigotmc.AsyncCatcher.catchOp( "scoreboard creation"); // Spigot
CraftScoreboard scoreboard = new CraftScoreboard(new ScoreboardServer(server));
scoreboards.add(scoreboard);
return scoreboard;
diff --git a/src/main/java/org/spigotmc/AsyncCatcher.java b/src/main/java/org/spigotmc/AsyncCatcher.java
new file mode 100644
index 0000000..4b3aa85
--- /dev/null
+++ b/src/main/java/org/spigotmc/AsyncCatcher.java
@@ -0,0 +1,17 @@
+package org.spigotmc;
+
+import net.minecraft.server.MinecraftServer;
+
+public class AsyncCatcher
+{
+
+ public static boolean enabled = true;
+
+ public static void catchOp(String reason)
+ {
+ if ( enabled && Thread.currentThread() != MinecraftServer.getServer().primaryThread )
+ {
+ throw new IllegalStateException( "Asynchronous " + reason + "!" );
+ }
+ }
+}
--
2.1.0
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