Paper/Spigot-Server-Patches/Add-source-block-to-BlockPhysicsEvent.patch
Aikar 68b25624d8 Remove deadlock risk in firing async events
The PluginManager incorrectly used synchronization on firing any event
that was marked as synchronous.

This synchronized did not even protect any concurrency risk as
handlers were already thread safe in terms of mutations during event
dispatch.

The way it was used, has commonly led to deadlocks on the server,
which results in a hard crash.

This change removes the synchronize and adds some protection around enable/disable
2018-09-09 01:04:29 -04:00

20 lines
1.3 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Sotr <i@omc.hk>
Date: Thu, 23 Aug 2018 16:14:12 +0800
Subject: [PATCH] Add source block to BlockPhysicsEvent
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index c479828d49..20bead54bf 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -0,0 +0,0 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
// CraftBukkit start
CraftWorld world = ((WorldServer) this).getWorld();
if (world != null && !((WorldServer)this).stopPhysicsEvent) { // Paper
- BlockPhysicsEvent event = new BlockPhysicsEvent(world.getBlockAt(blockposition.getX(), blockposition.getY(), blockposition.getZ()), CraftBlockData.fromData(iblockdata));
+ BlockPhysicsEvent event = new BlockPhysicsEvent(world.getBlockAt(blockposition.getX(), blockposition.getY(), blockposition.getZ()), CraftBlockData.fromData(iblockdata), blockposition1.getX(), blockposition1.getY(), blockposition1.getZ()); // Paper - add source block
this.getServer().getPluginManager().callEvent(event);
if (event.isCancelled()) {
--