PaperMC/Spigot-Server-Patches/0573-Use-wrapped-StructureManager-to-prevent-worldgen-dea.patch
Mariell Hoversholm 74f507f4e3 Updated Upstream (Bukkit/CraftBukkit)
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:
e461dcfe #555: Item - add getters/setters for owner/thrower

CraftBukkit Changes:
055870c4 #758: Item - add getters/setters for owner/thrower
2020-10-14 10:44:15 -04:00

34 lines
2 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: MiniDigger <admin@minidigger.me>
Date: Wed, 2 Sep 2020 13:56:18 +0200
Subject: [PATCH] Use wrapped StructureManager to prevent worldgen deadlock
diff --git a/src/main/java/net/minecraft/server/RegionLimitedWorldAccess.java b/src/main/java/net/minecraft/server/RegionLimitedWorldAccess.java
index e9fbeaf309735ea5fcb0c53b8b2485b0c5dd43be..9172c679c874d42750d2adc32124ecda29ea43cf 100644
--- a/src/main/java/net/minecraft/server/RegionLimitedWorldAccess.java
+++ b/src/main/java/net/minecraft/server/RegionLimitedWorldAccess.java
@@ -30,6 +30,7 @@ public class RegionLimitedWorldAccess implements GeneratorAccessSeed {
private final BiomeManager m;
private final ChunkCoordIntPair n;
private final ChunkCoordIntPair o;
+ private final StructureManager structureManager; // Paper - cache wrapped structure manager
public RegionLimitedWorldAccess(WorldServer worldserver, List<IChunkAccess> list) {
int i = MathHelper.floor(Math.sqrt((double) list.size()));
@@ -51,6 +52,7 @@ public class RegionLimitedWorldAccess implements GeneratorAccessSeed {
this.m = new BiomeManager(this, BiomeManager.a(this.g), worldserver.getDimensionManager().getGenLayerZoomer());
this.n = ((IChunkAccess) list.get(0)).getPos();
this.o = ((IChunkAccess) list.get(list.size() - 1)).getPos();
+ this.structureManager = this.f.getStructureManager().a(this); // Paper - cache wrapped structure manager
}
}
@@ -379,6 +381,6 @@ public class RegionLimitedWorldAccess implements GeneratorAccessSeed {
@Override
public Stream<? extends StructureStart<?>> a(SectionPosition sectionposition, StructureGenerator<?> structuregenerator) {
- return this.f.a(sectionposition, structuregenerator);
+ return structureManager.a(sectionposition, structuregenerator); // Paper - wrapped structure manager to prevent deadlock, see #4272 and MC-199487
}
}