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Paper/patches/removed/1.14/0120-Ensure-Chunks-never-ever-load-async.patch
2021-06-11 14:02:28 +02:00

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From 036c518050a0972307568a014156d59bb90bf54c 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 e4fd9bc604..7ffb8f6172 100644
--- a/src/main/java/org/bukkit/craftbukkit/chunkio/ChunkIOExecutor.java
+++ b/src/main/java/org/bukkit/craftbukkit/chunkio/ChunkIOExecutor.java
@@ -3,6 +3,7 @@ package org.bukkit.craftbukkit.chunkio;
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;
@@ -13,7 +14,7 @@ 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 52a8c48fa4..4cfe24df15 100644
--- a/src/main/java/org/bukkit/craftbukkit/chunkio/ChunkIOProvider.java
+++ b/src/main/java/org/bukkit/craftbukkit/chunkio/ChunkIOProvider.java
@@ -35,9 +35,9 @@ class ChunkIOProvider implements AsynchronousExecutor.CallBackProvider<QueuedChu
// sync stuff
public void callStage2(QueuedChunk queuedChunk, Chunk chunk) throws RuntimeException {
- if (chunk == null) {
+ 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 just do it synchronously (may generate)
- // queuedChunk.provider.originalGetChunkAt(queuedChunk.x, queuedChunk.z);
+ queuedChunk.provider.getChunkAt(queuedChunk.x, queuedChunk.z, true, true); // Paper - actually call original if it was already loaded
return;
}
try (Timing ignored = queuedChunk.provider.world.timings.chunkIOStage2.startTimingIfSync()) { // Paper
--
2.21.0