mirror of
https://github.com/PaperMC/Paper.git
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74 lines
4 KiB
Diff
74 lines
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/ChunkMapDistance.java b/src/main/java/net/minecraft/server/ChunkMapDistance.java
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index cf68c9105084d1823b5fc76b3f472a0f8ecd9568..d5b50a6a6816421c0443ae36213932b16ed5c797 100644
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--- a/src/main/java/net/minecraft/server/ChunkMapDistance.java
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+++ b/src/main/java/net/minecraft/server/ChunkMapDistance.java
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@@ -33,7 +33,16 @@ public abstract class ChunkMapDistance {
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private final ChunkMapDistance.a ticketLevelTracker = new ChunkMapDistance.a();
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private final ChunkMapDistance.b f = new ChunkMapDistance.b(8);
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private final ChunkMapDistance.c g = new ChunkMapDistance.c(33);
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- private final Set<PlayerChunk> pendingChunkUpdates = 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<PlayerChunk> pendingChunkUpdates = new java.util.ArrayDeque<PlayerChunk>() {
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+ @Override
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+ public boolean add(PlayerChunk 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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private final ChunkTaskQueueSorter i;
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private final Mailbox<ChunkTaskQueueSorter.a<Runnable>> j;
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private final Mailbox<ChunkTaskQueueSorter.b> k;
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@@ -94,26 +103,14 @@ public abstract class ChunkMapDistance {
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;
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}
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+ // Paper start
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if (!this.pendingChunkUpdates.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<PlayerChunk> iter = this.pendingChunkUpdates.iterator();
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- int expectedSize = this.pendingChunkUpdates.size();
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- do {
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- PlayerChunk playerchunk = iter.next();
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- iter.remove();
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- expectedSize--;
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-
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- playerchunk.a(playerchunkmap);
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-
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- // Reset iterator if set was modified using add()
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- if (this.pendingChunkUpdates.size() != expectedSize) {
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- expectedSize = this.pendingChunkUpdates.size();
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- iter = this.pendingChunkUpdates.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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+ while(!this.pendingChunkUpdates.isEmpty()) {
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+ PlayerChunk remove = this.pendingChunkUpdates.remove();
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+ remove.isUpdateQueued = false;
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+ remove.a(playerchunkmap);
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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.l.isEmpty()) {
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diff --git a/src/main/java/net/minecraft/server/PlayerChunk.java b/src/main/java/net/minecraft/server/PlayerChunk.java
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index ca41e420a1ab22f097dd0b98e156fd51434733d8..5efd611859648ed3c1bcda70728ea6106bd4bf4c 100644
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--- a/src/main/java/net/minecraft/server/PlayerChunk.java
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+++ b/src/main/java/net/minecraft/server/PlayerChunk.java
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@@ -18,6 +18,7 @@ public class PlayerChunk {
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private static final CompletableFuture<Either<Chunk, PlayerChunk.Failure>> UNLOADED_CHUNK_FUTURE = CompletableFuture.completedFuture(PlayerChunk.UNLOADED_CHUNK);
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private static final List<ChunkStatus> CHUNK_STATUSES = ChunkStatus.a();
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private static final PlayerChunk.State[] CHUNK_STATES = PlayerChunk.State.values();
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+ boolean isUpdateQueued = false; // Paper
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private final AtomicReferenceArray<CompletableFuture<Either<IChunkAccess, PlayerChunk.Failure>>> statusFutures;
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private volatile CompletableFuture<Either<Chunk, PlayerChunk.Failure>> fullChunkFuture; private int fullChunkCreateCount; private volatile boolean isFullChunkReady; // Paper - cache chunk ticking stage
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private volatile CompletableFuture<Either<Chunk, PlayerChunk.Failure>> tickingFuture; private volatile boolean isTickingReady; // Paper - cache chunk ticking stage
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