From 7cf90500080ff81fe958afe6a7b612b6bf681532 Mon Sep 17 00:00:00 2001 From: md_5 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. --- src/main/java/net/minecraft/server/EntityTracker.java | 2 ++ src/main/java/net/minecraft/server/EntityTrackerEntry.java | 2 ++ src/main/java/net/minecraft/server/World.java | 2 ++ src/main/java/org/bukkit/craftbukkit/CraftWorld.java | 3 +++ src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java | 1 + 5 files changed, 10 insertions(+) diff --git a/src/main/java/net/minecraft/server/EntityTracker.java b/src/main/java/net/minecraft/server/EntityTracker.java index 4de1273..db62084 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 index 4871bd7..8aa2e88 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); @@ -470,6 +471,7 @@ 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 3d77400..92e8a37 100644 --- a/src/main/java/net/minecraft/server/World.java +++ b/src/main/java/net/minecraft/server/World.java @@ -919,6 +919,7 @@ 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 @@ -1025,6 +1026,7 @@ 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); diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java index a303090..f5e63f8 100644 --- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java +++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java @@ -235,6 +235,7 @@ 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; } @@ -245,6 +246,7 @@ 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; } @@ -312,6 +314,7 @@ 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 index a93625c..5b74a5b 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); -- 1.8.2.1