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41 lines
2.2 KiB
Diff
41 lines
2.2 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Spottedleaf <Spottedleaf@users.noreply.github.com>
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Date: Sun, 20 Jun 2021 00:08:13 -0700
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Subject: [PATCH] Do not allow ticket level changes when updating chunk ticking
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state
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This WILL cause state corruption if it happens. So, don't
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allow it.
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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 dbae93f9c6358ef61c6b1f29860e9905a4b74332..b9d3535dd4e0af771bb74c85f18265e38f383e0e 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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@@ -443,7 +443,13 @@ public class ChunkHolder {
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CompletableFuture<Void> completablefuture1 = new CompletableFuture();
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completablefuture1.thenRunAsync(() -> {
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+ // Paper start - do not allow ticket level changes
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+ boolean unloadingBefore = this.chunkMap.unloadingPlayerChunk;
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+ this.chunkMap.unloadingPlayerChunk = true;
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+ try {
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+ // Paper end - do not allow ticket level changes
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playerchunkmap.onFullChunkStatusChange(this.pos, playerchunk_state);
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+ } finally { this.chunkMap.unloadingPlayerChunk = unloadingBefore; } // Paper - do not allow ticket level changes
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}, executor);
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this.pendingFullStateConfirmation = completablefuture1;
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completablefuture.thenAccept((either) -> {
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@@ -460,7 +466,12 @@ public class ChunkHolder {
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private void demoteFullChunk(ChunkMap playerchunkmap, ChunkHolder.FullChunkStatus playerchunk_state) {
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this.pendingFullStateConfirmation.cancel(false);
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+ // Paper start - do not allow ticket level changes
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+ boolean unloadingBefore = this.chunkMap.unloadingPlayerChunk;
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+ this.chunkMap.unloadingPlayerChunk = true;
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+ try { // Paper end - do not allow ticket level changes
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playerchunkmap.onFullChunkStatusChange(this.pos, playerchunk_state);
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+ } finally { this.chunkMap.unloadingPlayerChunk = unloadingBefore; } // Paper - do not allow ticket level changes
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}
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protected long updateCount; // Paper - correctly handle recursion
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