85 lines
4.4 KiB
Diff
85 lines
4.4 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Shane Freeder <theboyetronic@gmail.com>
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Date: Wed, 29 May 2019 04:01:22 +0100
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Subject: [PATCH] ChunkMapDistance CME
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diff --git a/src/main/java/net/minecraft/server/level/ChunkHolder.java b/src/main/java/net/minecraft/server/level/ChunkHolder.java
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index 00f5cd29170e3594fe2ac194e04e403cef685912..84831fc611589c19320b5e3af107080596b1fbdc 100644
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--- a/src/main/java/net/minecraft/server/level/ChunkHolder.java
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+++ b/src/main/java/net/minecraft/server/level/ChunkHolder.java
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@@ -73,6 +73,7 @@ public class ChunkHolder {
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private boolean resendLight;
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private CompletableFuture<Void> pendingFullStateConfirmation;
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+ boolean isUpdateQueued = false; // Paper
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private final ChunkMap chunkMap; // Paper
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public ChunkHolder(ChunkPos pos, int level, LevelHeightAccessor world, LevelLightEngine lightingProvider, ChunkHolder.LevelChangeListener levelUpdateListener, ChunkHolder.PlayerProvider playersWatchingChunkProvider) {
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diff --git a/src/main/java/net/minecraft/server/level/DistanceManager.java b/src/main/java/net/minecraft/server/level/DistanceManager.java
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index 48bb57d3a431ea466425eb7da821c0aea900bd4c..45c7ebe67019cdbe88b6617a95d5c40d3a68286c 100644
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--- a/src/main/java/net/minecraft/server/level/DistanceManager.java
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+++ b/src/main/java/net/minecraft/server/level/DistanceManager.java
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@@ -47,7 +47,16 @@ public abstract class DistanceManager {
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private final DistanceManager.ChunkTicketTracker ticketTracker = new DistanceManager.ChunkTicketTracker();
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private final DistanceManager.FixedPlayerDistanceChunkTracker naturalSpawnChunkCounter = new DistanceManager.FixedPlayerDistanceChunkTracker(8);
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private final DistanceManager.PlayerTicketTracker playerTicketManager = new DistanceManager.PlayerTicketTracker(33);
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- final Set<ChunkHolder> chunksToUpdateFutures = Sets.newHashSet();
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+ // Paper start use a queue, but still keep unique requirement
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+ public final java.util.Queue<ChunkHolder> pendingChunkUpdates = new java.util.ArrayDeque<ChunkHolder>() {
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+ @Override
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+ public boolean add(ChunkHolder o) {
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+ if (o.isUpdateQueued) return true;
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+ o.isUpdateQueued = true;
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+ return super.add(o);
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+ }
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+ };
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+ // Paper end
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final ChunkTaskPriorityQueueSorter ticketThrottler;
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final ProcessorHandle<ChunkTaskPriorityQueueSorter.Message<Runnable>> ticketThrottlerInput;
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final ProcessorHandle<ChunkTaskPriorityQueueSorter.Release> ticketThrottlerReleaser;
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@@ -108,26 +117,14 @@ public abstract class DistanceManager {
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;
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}
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- if (!this.chunksToUpdateFutures.isEmpty()) {
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- // CraftBukkit start
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- // Iterate pending chunk updates with protection against concurrent modification exceptions
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- java.util.Iterator<ChunkHolder> iter = this.chunksToUpdateFutures.iterator();
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- int expectedSize = this.chunksToUpdateFutures.size();
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- do {
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- ChunkHolder playerchunk = iter.next();
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- iter.remove();
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- expectedSize--;
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-
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- playerchunk.updateFutures(playerchunkmap, this.mainThreadExecutor);
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-
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- // Reset iterator if set was modified using add()
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- if (this.chunksToUpdateFutures.size() != expectedSize) {
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- expectedSize = this.chunksToUpdateFutures.size();
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- iter = this.chunksToUpdateFutures.iterator();
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- }
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- } while (iter.hasNext());
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- // CraftBukkit end
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-
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+ // Paper start
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+ if (!this.pendingChunkUpdates.isEmpty()) {
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+ while(!this.pendingChunkUpdates.isEmpty()) {
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+ ChunkHolder remove = this.pendingChunkUpdates.remove();
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+ remove.isUpdateQueued = false;
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+ remove.updateFutures(playerchunkmap, this.mainThreadExecutor);
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+ }
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+ // Paper end
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return true;
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} else {
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if (!this.ticketsToRelease.isEmpty()) {
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@@ -385,7 +382,7 @@ public abstract class DistanceManager {
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if (k != level) {
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playerchunk = DistanceManager.this.updateChunkScheduling(id, level, playerchunk, k);
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if (playerchunk != null) {
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- DistanceManager.this.chunksToUpdateFutures.add(playerchunk);
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+ DistanceManager.this.pendingChunkUpdates.add(playerchunk);
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}
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}
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