57dd397155
Upstream has released updates that appears to apply and compile correctly. This update has not been tested by PaperMC and as with ANY update, please do your own testing Bukkit Changes: b999860d SPIGOT-2304: Add LootGenerateEvent CraftBukkit Changes: 77fd87e4 SPIGOT-2304: Implement LootGenerateEvent a1a705ee SPIGOT-5566: Doused campfires & fires should call EntityChangeBlockEvent 41712edd SPIGOT-5707: PersistentDataHolder not Persistent on API dropped Item
62 lines
2.3 KiB
Diff
62 lines
2.3 KiB
Diff
From 759d5945b448b510250dc35d4c72d2d90c51cfa4 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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We make sure to also implement a pattern that is recursion safe too.
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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 3f4a3205a4..aabb9220db 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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@@ -87,24 +87,32 @@ 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 recursive safe multi entry queue
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+ // it's possible to schedule multiple tasks currently, so it's vital we change this impl
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+ // If we recurse into the executor again, we will append to another queue, ensuring task order consistency
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+ private java.util.ArrayDeque<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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- throw new IllegalStateException("Already queued");
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+ if (queued == null) {
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+ queued = new java.util.ArrayDeque<>();
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}
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- queued = runnable;
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+ queued.add(runnable);
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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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+ if (queued == null) {
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+ return;
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+ }
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+ java.util.ArrayDeque<Runnable> queue = 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 = queue.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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2.26.2
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