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Acquire scheduling lock in NewChunkHolder#onFullChunkLoadChange

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It modifies data that should be held by the lock: pending
chunk status
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Spottedleaf 2023-04-01 00:53:27 -07:00
parent 700d3c580c
commit 7072994557
1 changed files with 39 additions and 0 deletions
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39
patches/server/0016-Acquire-scheduling-lock-in-NewChunkHolder-onFullChun.patch Normal file
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@ -0,0 +1,39 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Sat, 1 Apr 2023 00:34:29 -0700
Subject: [PATCH] Acquire scheduling lock in
NewChunkHolder#onFullChunkLoadChange
It modifies data that should be held by the lock: pending
chunk status
diff --git a/src/main/java/io/papermc/paper/chunk/system/scheduling/NewChunkHolder.java b/src/main/java/io/papermc/paper/chunk/system/scheduling/NewChunkHolder.java
index 3b70ccd8e0b1ada943f57faf99c23b2935249cf6..12feb739a784a0108256451a37d94d041b7a5cdc 100644
--- a/src/main/java/io/papermc/paper/chunk/system/scheduling/NewChunkHolder.java
+++ b/src/main/java/io/papermc/paper/chunk/system/scheduling/NewChunkHolder.java
@@ -1203,8 +1203,12 @@ public final class NewChunkHolder {
}
}
- // only call on main thread, must hold ticket level and scheduling lock
+ // only call on main thread // Folia - update comment
private void onFullChunkLoadChange(final boolean loaded, final List<NewChunkHolder> changedFullStatus) {
+ // Folia start - chunk system fix - acquire scheduling lock
+ this.scheduler.schedulingLock.lock();
+ try {
+ // Folia end - chunk system fix - acquire scheduling lock
for (int dz = -NEIGHBOUR_RADIUS; dz <= NEIGHBOUR_RADIUS; ++dz) {
for (int dx = -NEIGHBOUR_RADIUS; dx <= NEIGHBOUR_RADIUS; ++dx) {
final NewChunkHolder holder = (dx | dz) == 0 ? this : this.scheduler.chunkHolderManager.getChunkHolder(dx + this.chunkX, dz + this.chunkZ);
@@ -1219,6 +1223,11 @@ public final class NewChunkHolder {
}
}
}
+ // Folia start - chunk system fix - acquire scheduling lock
+ } finally {
+ this.scheduler.schedulingLock.unlock();
+ }
+ // Folia end - chunk system fix - acquire scheduling lock
}
private ChunkHolder.FullChunkStatus updateCurrentState(final ChunkHolder.FullChunkStatus to) {