Paper/CraftBukkit-Patches/0011-Async-Operation-Catching.patch
Zach Brown 7b0c576798 Restructure PaperSpigot as a new set of modules
Allows us much greater control over the Spigot portion of the code
and makes us more "proper"
Credit to @Dmck2b for originally passing the idea along a while back
2014-07-21 15:46:54 -05:00

174 lines
7.3 KiB
Diff

From c6bf2543497edffe85c9abe224cdc241d9b3e53e 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 c043b9a..0893a6f 100644
--- a/src/main/java/net/minecraft/server/Block.java
+++ b/src/main/java/net/minecraft/server/Block.java
@@ -433,9 +433,13 @@ public class Block {
return 10;
}
- public void onPlace(World world, int i, int j, int k) {}
+ public void onPlace(World world, int i, int j, int k) {
+ org.spigotmc.AsyncCatcher.catchOp( "block onPlace"); // Spigot
+ }
- public void remove(World world, int i, int j, int k, Block block, int l) {}
+ public void remove(World world, int i, int j, int k, Block block, int l) {
+ org.spigotmc.AsyncCatcher.catchOp( "block remove"); // Spigot
+ }
public int a(Random random) {
return 1;
diff --git a/src/main/java/net/minecraft/server/EntityTracker.java b/src/main/java/net/minecraft/server/EntityTracker.java
index 1af0e67..70b0181 100644
--- a/src/main/java/net/minecraft/server/EntityTracker.java
+++ b/src/main/java/net/minecraft/server/EntityTracker.java
@@ -91,6 +91,7 @@ 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;
}
@@ -125,6 +126,7 @@ 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 0cf9ad5..f654d58 100644
--- a/src/main/java/net/minecraft/server/EntityTrackerEntry.java
+++ b/src/main/java/net/minecraft/server/EntityTrackerEntry.java
@@ -299,6 +299,7 @@ public class EntityTrackerEntry {
}
public void updatePlayer(EntityPlayer entityplayer) {
+ org.spigotmc.AsyncCatcher.catchOp( "player tracker update"); // Spigot
if (entityplayer != this.tracker) {
double d0 = entityplayer.locX - (double) (this.xLoc / 32);
double d1 = entityplayer.locZ - (double) (this.zLoc / 32);
@@ -515,6 +516,7 @@ 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 dcc87e8..d12ef7a 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -979,6 +979,7 @@ 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
@@ -1086,6 +1087,7 @@ 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);
@@ -2466,6 +2468,7 @@ public abstract class World implements IBlockAccess {
}
public void a(List list) {
+ org.spigotmc.AsyncCatcher.catchOp( "entity world add"); // Spigot
// CraftBukkit start
// this.entityList.addAll(list);
Entity entity = null;
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
index 7112c77..c76c3d3 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
@@ -162,6 +162,7 @@ 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;
}
@@ -172,6 +173,7 @@ 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;
}
@@ -239,6 +241,7 @@ 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 6493ce7..8b599f2 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -238,6 +238,7 @@ 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 + "!" );
+ }
+ }
+}
--
1.9.1