PaperMC/Spigot-Server-Patches/Fix-Chunk-Unload-Queue-Issues.patch
Aikar 8778a2ef97 Current Chunk for Entity and Block Entities, counts by entity type
This enables us a fast reference to the entities current chunk instead
of having to look it up by hashmap lookups.

We also store counts by type to further enable other performance optimizations in later patches.
2018-07-04 03:55:24 -04:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Thu, 12 May 2016 02:03:56 -0400
Subject: [PATCH] Fix Chunk Unload Queue Issues
Vanilla implemented similar logic as Paper had pre 1.9.4, but Spigot
has not resolved all the bugs with the changes.
This patch fixes known issues and really should be applied by Spigot team.
diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
index ba3ee64f8..857df2937 100644
--- a/src/main/java/net/minecraft/server/Chunk.java
+++ b/src/main/java/net/minecraft/server/Chunk.java
@@ -0,0 +0,0 @@ public class Chunk {
private long w;
private int x;
private final ConcurrentLinkedQueue<BlockPosition> y;
- public boolean d;
+ public boolean d; public void setShouldUnload(boolean unload) { this.d = unload; } public boolean isUnloading() { return d; } // Paper - OBFHELPER
protected gnu.trove.map.hash.TObjectIntHashMap<Class> entityCount = new gnu.trove.map.hash.TObjectIntHashMap<Class>(); // Spigot
// Paper start
diff --git a/src/main/java/net/minecraft/server/ChunkProviderServer.java b/src/main/java/net/minecraft/server/ChunkProviderServer.java
index 1771a1794..5cc192bbd 100644
--- a/src/main/java/net/minecraft/server/ChunkProviderServer.java
+++ b/src/main/java/net/minecraft/server/ChunkProviderServer.java
@@ -0,0 +0,0 @@ public class ChunkProviderServer implements IChunkProvider {
if (chunk != null && chunk.d) {
// CraftBukkit start - move unload logic to own method
+ chunk.setShouldUnload(false); // Paper
if (!unloadChunk(chunk, true)) {
continue;
}
--