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Paper/patches/server-remapped/0436-Delay-unsafe-actions-until-after-entity-ticking-is-d.patch

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2021-06-11 14:02:28 +02:00
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sat, 11 Apr 2020 21:23:42 -0400
Subject: [PATCH] Delay unsafe actions until after entity ticking is done
This will help prevent many cases of unregistering entities during entity ticking
diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
index 4e75cc5e52a5295e32ccadb371702a405bb518bb..b9978d296b83e73d3395b8254c0e8ccd9b36d0fa 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -172,6 +172,16 @@ public class ServerLevel extends net.minecraft.world.level.Level implements Worl
public final List<ServerPlayer> players = Lists.newArrayList(); // Paper - private -> public
public final ServerChunkCache chunkSource; // Paper - public
boolean tickingEntities;
+ // Paper start
+ List<java.lang.Runnable> afterEntityTickingTasks = Lists.newArrayList();
+ public void doIfNotEntityTicking(java.lang.Runnable run) {
+ if (tickingEntities) {
+ afterEntityTickingTasks.add(run);
+ } else {
+ run.run();
+ }
+ }
+ // Paper end
private final MinecraftServer server;
public final PrimaryLevelData worldDataServer; // CraftBukkit - type
public boolean noSave;
@@ -641,6 +651,16 @@ public class ServerLevel extends net.minecraft.world.level.Level implements Worl
timings.entityTick.stopTiming(); // Spigot
this.tickingEntities = false;
+ // Paper start
+ for (java.lang.Runnable run : this.afterEntityTickingTasks) {
+ try {
+ run.run();
+ } catch (Exception e) {
+ LOGGER.error("Error in After Entity Ticking Task", e);
+ }
+ }
+ this.afterEntityTickingTasks.clear();
+ // Paper end
this.getServer().midTickLoadChunks(); // Paper
Entity entity2;