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spigot/CraftBukkit-Patches/0007-Async-Operation-Catching.patch
md_5 38536abd0c Rebuild patches
2018-09-21 20:57:04 +10:00

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From 3400917616b65f7214699309d1354486641c5ac2 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 b9c066cd6..8811dbc9b 100644
--- a/src/main/java/net/minecraft/server/Block.java
+++ b/src/main/java/net/minecraft/server/Block.java
@@ -377,10 +377,14 @@ public class Block implements IMaterial {
}
@Deprecated
- public void onPlace(IBlockData iblockdata, World world, BlockPosition blockposition, IBlockData iblockdata1) {}
+ public void onPlace(IBlockData iblockdata, World world, BlockPosition blockposition, IBlockData iblockdata1) {
+ org.spigotmc.AsyncCatcher.catchOp( "block onPlace"); // Spigot
+ }
@Deprecated
- public void remove(IBlockData iblockdata, World world, BlockPosition blockposition, IBlockData iblockdata1, boolean flag) {}
+ public void remove(IBlockData iblockdata, World world, BlockPosition blockposition, IBlockData iblockdata1, boolean flag) {
+ org.spigotmc.AsyncCatcher.catchOp( "block remove"); // Spigot
+ }
public int a(IBlockData iblockdata, 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 0d89ea344..678e8716c 100644
--- a/src/main/java/net/minecraft/server/EntityLiving.java
+++ b/src/main/java/net/minecraft/server/EntityLiving.java
@@ -725,6 +725,7 @@ public abstract class EntityLiving extends Entity {
}
public boolean addEffect(MobEffect mobeffect, EntityPotionEffectEvent.Cause cause) {
+ org.spigotmc.AsyncCatcher.catchOp( "effect add"); // Spigot
if (isTickingEffects) {
effectsToProcess.add(new ProcessableEffect(mobeffect, cause));
return true;
diff --git a/src/main/java/net/minecraft/server/EntityTracker.java b/src/main/java/net/minecraft/server/EntityTracker.java
index 14fab2b31..ef5817933 100644
--- a/src/main/java/net/minecraft/server/EntityTracker.java
+++ b/src/main/java/net/minecraft/server/EntityTracker.java
@@ -105,6 +105,7 @@ public class EntityTracker {
}
public void addEntity(Entity entity, int i, int j, boolean flag) {
+ org.spigotmc.AsyncCatcher.catchOp( "entity track"); // Spigot
try {
if (this.trackedEntities.b(entity.getId())) {
throw new IllegalStateException("Entity is already tracked!");
@@ -142,6 +143,7 @@ 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 e44e37999..8478a81f5 100644
--- a/src/main/java/net/minecraft/server/EntityTrackerEntry.java
+++ b/src/main/java/net/minecraft/server/EntityTrackerEntry.java
@@ -324,6 +324,7 @@ 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)) {
@@ -567,6 +568,7 @@ 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);
this.tracker.c(entityplayer);
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index 63ba47f3b..cb7f9c6ce 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -861,6 +861,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
}
public boolean addEntity(Entity entity, SpawnReason spawnReason) { // Changed signature, added SpawnReason
+ org.spigotmc.AsyncCatcher.catchOp( "entity add"); // Spigot
if (entity == null) return false;
org.bukkit.event.Cancellable event = null;
@@ -958,6 +959,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
}
public void kill(Entity entity) {
+ org.spigotmc.AsyncCatcher.catchOp( "entity kill"); // Spigot
if (entity.isVehicle()) {
entity.ejectPassengers();
}
@@ -976,6 +978,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
}
public void removeEntity(Entity entity) {
+ org.spigotmc.AsyncCatcher.catchOp( "entity remove"); // Spigot
entity.b(false);
entity.die();
if (entity instanceof EntityHuman) {
@@ -2193,6 +2196,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
}
public void a(Stream<Entity> stream) {
+ org.spigotmc.AsyncCatcher.catchOp( "entity world add"); // Spigot
stream.forEach((entity) -> {
this.entityList.add(entity);
this.b(entity);
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
index 96db76399..28293ac8d 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
@@ -672,6 +672,7 @@ public final class CraftServer implements Server {
public boolean dispatchCommand(CommandSender sender, String commandLine) {
Validate.notNull(sender, "Sender cannot be null");
Validate.notNull(commandLine, "CommandLine cannot be null");
+ org.spigotmc.AsyncCatcher.catchOp( "command dispatch" ); // Spigot
if (commandMap.dispatch(sender, commandLine)) {
return true;
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
index e8b06f72f..9d5f7c879 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
@@ -178,6 +178,7 @@ 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;
}
@@ -191,6 +192,7 @@ public class CraftWorld implements World {
}
public boolean unloadChunk(int x, int z, boolean save, boolean safe) {
+ org.spigotmc.AsyncCatcher.catchOp( "chunk unload"); // Spigot
if (isChunkInUse(x, z)) {
return false;
}
@@ -254,6 +256,7 @@ public class CraftWorld implements World {
}
public boolean loadChunk(int x, int z, boolean generate) {
+ org.spigotmc.AsyncCatcher.catchOp( "chunk load"); // Spigot
chunkLoadCount++;
return world.getChunkProviderServer().getChunkAt(x, z, true, generate) != null;
}
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
index 4a3d4da91..8381bdd5b 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -293,6 +293,7 @@ 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 cac87d306..9cce899f5 100644
--- a/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftScoreboardManager.java
+++ b/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftScoreboardManager.java
@@ -43,6 +43,7 @@ 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/bukkit/craftbukkit/util/ServerShutdownThread.java b/src/main/java/org/bukkit/craftbukkit/util/ServerShutdownThread.java
index ae3481ba8..a0cdd2317 100644
--- a/src/main/java/org/bukkit/craftbukkit/util/ServerShutdownThread.java
+++ b/src/main/java/org/bukkit/craftbukkit/util/ServerShutdownThread.java
@@ -13,6 +13,7 @@ public class ServerShutdownThread extends Thread {
@Override
public void run() {
try {
+ org.spigotmc.AsyncCatcher.enabled = false; // Spigot
server.stop();
} catch (ExceptionWorldConflict ex) {
ex.printStackTrace();
diff --git a/src/main/java/org/spigotmc/AsyncCatcher.java b/src/main/java/org/spigotmc/AsyncCatcher.java
new file mode 100644
index 000000000..4b3aa85c9
--- /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 + "!" );
+ }
+ }
+}
--
2.17.1
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