PaperMC/Spigot-Server-Patches/0138-Ensure-Chunks-never-ever-load-async.patch
Aikar 18c3716c49
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 03:58:56 -04:00

46 lines
2.7 KiB
Diff

From 5cdfaa0f565fc0d8893a906291c4501a2a8149a6 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Fri, 27 May 2016 21:41:26 -0400
Subject: [PATCH] Ensure Chunks never ever load async
Safely pushes the operation to main thread, then back to the posting thread
diff --git a/src/main/java/org/bukkit/craftbukkit/chunkio/ChunkIOExecutor.java b/src/main/java/org/bukkit/craftbukkit/chunkio/ChunkIOExecutor.java
index 7b7a3d01b..9aaca21a7 100644
--- a/src/main/java/org/bukkit/craftbukkit/chunkio/ChunkIOExecutor.java
+++ b/src/main/java/org/bukkit/craftbukkit/chunkio/ChunkIOExecutor.java
@@ -4,6 +4,7 @@ import com.destroystokyo.paper.PaperConfig;
import net.minecraft.server.Chunk;
import net.minecraft.server.ChunkProviderServer;
import net.minecraft.server.ChunkRegionLoader;
+import net.minecraft.server.MCUtil; // Paper
import net.minecraft.server.World;
import org.bukkit.craftbukkit.util.AsynchronousExecutor;
@@ -14,7 +15,7 @@ public class ChunkIOExecutor {
private static final AsynchronousExecutor<QueuedChunk, Chunk, Runnable, RuntimeException> instance = new AsynchronousExecutor<QueuedChunk, Chunk, Runnable, RuntimeException>(new ChunkIOProvider(), BASE_THREADS);
public static Chunk syncChunkLoad(World world, ChunkRegionLoader loader, ChunkProviderServer provider, int x, int z) {
- return instance.getSkipQueue(new QueuedChunk(x, z, loader, world, provider));
+ return MCUtil.ensureMain("Async Chunk Load", () -> instance.getSkipQueue(new QueuedChunk(x, z, loader, world, provider))); // Paper
}
public static void queueChunkLoad(World world, ChunkRegionLoader loader, ChunkProviderServer provider, int x, int z, Runnable runnable) {
diff --git a/src/main/java/org/bukkit/craftbukkit/chunkio/ChunkIOProvider.java b/src/main/java/org/bukkit/craftbukkit/chunkio/ChunkIOProvider.java
index b5efb9c3f..ef9529add 100644
--- a/src/main/java/org/bukkit/craftbukkit/chunkio/ChunkIOProvider.java
+++ b/src/main/java/org/bukkit/craftbukkit/chunkio/ChunkIOProvider.java
@@ -35,8 +35,8 @@ class ChunkIOProvider implements AsynchronousExecutor.CallBackProvider<QueuedChu
// sync stuff
public void callStage2(QueuedChunk queuedChunk, Chunk chunk) throws RuntimeException {
- if (chunk == null) {
- // If the chunk loading failed just do it synchronously (may generate)
+ if (chunk == null || queuedChunk.provider.chunks.containsKey(ChunkCoordIntPair.a(queuedChunk.x, queuedChunk.z))) { // Paper - also call original if it was already loaded
+ // If the chunk loading failed (or was already loaded for some reason) just do it synchronously (may generate)
queuedChunk.provider.originalGetChunkAt(queuedChunk.x, queuedChunk.z);
return;
}
--
2.18.0