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53 lines
2.0 KiB
Diff
53 lines
2.0 KiB
Diff
From 0f4ba3f787e0860be4e312a4eaaa2a9556624bf8 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Tue, 21 Apr 2020 03:51:53 -0400
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Subject: [PATCH] Allow multiple callbacks to schedule for Callback Executor
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ChunkMapDistance polls multiple entries for pendingChunkUpdates
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Each of these have the potential to move a chunk in and out of
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"Loaded" state, which will result in multiple callbacks being
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needed within a single tick of ChunkMapDistance
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Use an ArrayDeque to store this Queue
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diff --git a/src/main/java/net/minecraft/server/PlayerChunkMap.java b/src/main/java/net/minecraft/server/PlayerChunkMap.java
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index 8b2eed10..ee0cabad 100644
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--- a/src/main/java/net/minecraft/server/PlayerChunkMap.java
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+++ b/src/main/java/net/minecraft/server/PlayerChunkMap.java
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@@ -87,25 +87,22 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
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public final CallbackExecutor callbackExecutor = new CallbackExecutor();
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public static final class CallbackExecutor implements java.util.concurrent.Executor, Runnable {
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- private Runnable queued;
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+ // Paper start - replace impl with Deque - possible multiple is needed in single pass
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+ private java.util.Deque<Runnable> queued = new java.util.ArrayDeque<>();
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@Override
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public void execute(Runnable runnable) {
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- if (queued != null) {
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- MinecraftServer.LOGGER.fatal("Failed to schedule runnable", new IllegalStateException("Already queued")); // Paper - make sure this is printed
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- throw new IllegalStateException("Already queued");
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- }
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- queued = runnable;
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+ queued.add(runnable); // Paper
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}
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@Override
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public void run() {
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- Runnable task = queued;
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- queued = null;
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- if (task != null) {
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+ Runnable task;
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+ while ((task = queued.pollFirst()) != null) {
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task.run();
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}
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}
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+ // Paper end
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};
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// CraftBukkit end
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--
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2.25.1.windows.1
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