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https://github.com/PaperMC/Paper.git
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0708fa363b
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 CraftBukkit Changes:eb2e6578SPIGOT-5116: Fix concurrent modification exception inside ChunkMapDistance989f9b3dSPIGOT-4849: Fix server crash when accessing chunks during chunk load/unload/populate eventsf554183cSPIGOT-5171: Don't fire PlayerTeleportEvent if not actually moving2349feb8SPIGOT-5163: Cancelling PlayerBucketFillEvent visually removes the targeted block Spigot Changes: 9a643a6a Remove DataWatcher Locking
213 lines
9.1 KiB
Diff
213 lines
9.1 KiB
Diff
From b702eef95eabfe9dcc0dd66df1844fc26399ae47 Mon Sep 17 00:00:00 2001
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From: Shane Freeder <theboyetronic@gmail.com>
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Date: Fri, 24 May 2019 07:53:16 +0100
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Subject: [PATCH] Fix some generation concurrency issues
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diff --git a/src/main/java/net/minecraft/server/DefinedStructureManager.java b/src/main/java/net/minecraft/server/DefinedStructureManager.java
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index 6aa0ca395..ed9b5c63f 100644
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--- a/src/main/java/net/minecraft/server/DefinedStructureManager.java
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+++ b/src/main/java/net/minecraft/server/DefinedStructureManager.java
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@@ -20,7 +20,7 @@ import org.apache.logging.log4j.Logger;
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public class DefinedStructureManager implements IResourcePackListener {
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private static final Logger LOGGER = LogManager.getLogger();
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- private final Map<MinecraftKey, DefinedStructure> b = Maps.newHashMap();
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+ private final Map<MinecraftKey, DefinedStructure> b = Maps.newConcurrentMap(); // Paper
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private final DataFixer c;
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private final MinecraftServer d;
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private final java.nio.file.Path e;
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diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
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index 2eed9c2ec..f0e8acdd1 100644
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--- a/src/main/java/net/minecraft/server/World.java
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+++ b/src/main/java/net/minecraft/server/World.java
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@@ -101,6 +101,23 @@ public abstract class World implements IIBlockAccess, GeneratorAccess, AutoClose
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private int tileTickPosition;
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public final Map<Explosion.CacheKey, Float> explosionDensityCache = new HashMap<>(); // Paper - Optimize explosions
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public java.util.ArrayDeque<BlockRedstoneTorch.RedstoneUpdateInfo> redstoneUpdateInfos; // Paper - Move from Map in BlockRedstoneTorch to here
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+ // Paper start - yes this is hacky as shit
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+ RegionLimitedWorldAccess regionLimited;
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+ World originalWorld;
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+ public World regionLimited(RegionLimitedWorldAccess limitedWorldAccess) {
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+ try {
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+ World clone = (World) super.clone();
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+ clone.regionLimited = limitedWorldAccess;
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+ clone.originalWorld = this;
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+ return clone;
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+ } catch (CloneNotSupportedException e1) {
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+ }
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+ return null;
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+ }
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+ ChunkCoordIntPair[] strongholdCoords;
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+ List<StructureStart> strongholdStuctures = Lists.newArrayList();
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+ final java.lang.Object stuctureLock = new Object();
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+ // Paper end
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public CraftWorld getWorld() {
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return this.world;
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diff --git a/src/main/java/net/minecraft/server/WorldGenStronghold.java b/src/main/java/net/minecraft/server/WorldGenStronghold.java
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index eca27e52e..fb3463fcc 100644
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--- a/src/main/java/net/minecraft/server/WorldGenStronghold.java
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+++ b/src/main/java/net/minecraft/server/WorldGenStronghold.java
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@@ -10,10 +10,12 @@ import javax.annotation.Nullable;
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public class WorldGenStronghold extends StructureGenerator<WorldGenFeatureEmptyConfiguration> {
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+ /* // Paper start - no shared state
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private boolean a;
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private ChunkCoordIntPair[] aS;
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private final List<StructureStart> aT = Lists.newArrayList();
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private long aU;
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+ */
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public WorldGenStronghold(Function<Dynamic<?>, ? extends WorldGenFeatureEmptyConfiguration> function) {
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super(function);
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@@ -21,16 +23,22 @@ public class WorldGenStronghold extends StructureGenerator<WorldGenFeatureEmptyC
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@Override
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public boolean a(ChunkGenerator<?> chunkgenerator, Random random, int i, int j) {
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+ // Paper start
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+ /*
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if (this.aU != chunkgenerator.getSeed()) {
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this.d();
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}
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+ */
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+ final World world = chunkgenerator.getWorld();
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- if (!this.a) {
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+ synchronized (world.stuctureLock) {
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+ if ( world.strongholdCoords == null) {
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this.a(chunkgenerator);
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- this.a = true;
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- }
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+ // this.a = true;
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+ }}
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+ // Paper end
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- ChunkCoordIntPair[] achunkcoordintpair = this.aS;
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+ ChunkCoordIntPair[] achunkcoordintpair = world.strongholdCoords; // Paper
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int k = achunkcoordintpair.length;
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for (int l = 0; l < k; ++l) {
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@@ -45,9 +53,11 @@ public class WorldGenStronghold extends StructureGenerator<WorldGenFeatureEmptyC
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}
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private void d() {
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+ /* // Paper
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this.a = false;
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this.aS = null;
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this.aT.clear();
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+ */ // Paper
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}
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@Override
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@@ -65,25 +75,32 @@ public class WorldGenStronghold extends StructureGenerator<WorldGenFeatureEmptyC
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return 8;
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}
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+
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@Nullable
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@Override
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public BlockPosition getNearestGeneratedFeature(World world, ChunkGenerator<? extends GeneratorSettingsDefault> chunkgenerator, BlockPosition blockposition, int i, boolean flag) {
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if (!chunkgenerator.getWorldChunkManager().a(this)) {
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return null;
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} else {
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+ // Paper start - no shared state
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+ /*
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if (this.aU != world.getSeed()) {
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this.d();
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}
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+ */
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- if (!this.a) {
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- this.a(chunkgenerator);
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- this.a = true;
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+ synchronized (world.stuctureLock) {
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+ if ( world.strongholdCoords == null) {
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+ this.a(chunkgenerator);
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+ //this.a = true;
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+ }
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}
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+ // Paper end
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BlockPosition blockposition1 = null;
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BlockPosition.MutableBlockPosition blockposition_mutableblockposition = new BlockPosition.MutableBlockPosition();
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double d0 = Double.MAX_VALUE;
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- ChunkCoordIntPair[] achunkcoordintpair = this.aS;
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+ ChunkCoordIntPair[] achunkcoordintpair = world.strongholdCoords; // Paper
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int j = achunkcoordintpair.length;
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for (int k = 0; k < j; ++k) {
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@@ -106,7 +123,7 @@ public class WorldGenStronghold extends StructureGenerator<WorldGenFeatureEmptyC
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}
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private void a(ChunkGenerator<?> chunkgenerator) {
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- this.aU = chunkgenerator.getSeed();
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+ //this.aU = chunkgenerator.getSeed(); // Paper
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List<BiomeBase> list = Lists.newArrayList();
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Iterator iterator = IRegistry.BIOME.iterator();
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@@ -122,15 +139,15 @@ public class WorldGenStronghold extends StructureGenerator<WorldGenFeatureEmptyC
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int j = chunkgenerator.getSettings().f();
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int k = chunkgenerator.getSettings().g();
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- this.aS = new ChunkCoordIntPair[j];
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+ ChunkCoordIntPair[] strongholdCoords = chunkgenerator.getWorld().strongholdCoords = new ChunkCoordIntPair[j]; // Paper
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int l = 0;
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- Iterator iterator1 = this.aT.iterator();
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+ Iterator iterator1 = chunkgenerator.getWorld().strongholdStuctures.iterator(); // Paper
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while (iterator1.hasNext()) {
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StructureStart structurestart = (StructureStart) iterator1.next();
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- if (l < this.aS.length) {
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- this.aS[l++] = new ChunkCoordIntPair(structurestart.f(), structurestart.g());
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+ if (l < strongholdCoords.length) { // Paper
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+ strongholdCoords[l++] = new ChunkCoordIntPair(structurestart.f(), structurestart.g()); // Paper
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}
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}
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@@ -140,11 +157,11 @@ public class WorldGenStronghold extends StructureGenerator<WorldGenFeatureEmptyC
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double d0 = random.nextDouble() * 3.141592653589793D * 2.0D;
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int i1 = l;
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- if (l < this.aS.length) {
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+ if (l < strongholdCoords.length) { // Paper
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int j1 = 0;
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int k1 = 0;
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- for (int l1 = 0; l1 < this.aS.length; ++l1) {
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+ for (int l1 = 0; l1 < strongholdCoords.length; ++l1) { // Paper
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double d1 = (double) (4 * i + i * k1 * 6) + (random.nextDouble() - 0.5D) * (double) i * 2.5D;
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int i2 = (int) Math.round(Math.cos(d0) * d1);
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int j2 = (int) Math.round(Math.sin(d0) * d1);
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@@ -156,7 +173,7 @@ public class WorldGenStronghold extends StructureGenerator<WorldGenFeatureEmptyC
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}
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if (l1 >= i1) {
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- this.aS[l1] = new ChunkCoordIntPair(i2, j2);
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+ strongholdCoords[l1] = new ChunkCoordIntPair(i2, j2); // Paper
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}
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d0 += 6.283185307179586D / (double) k;
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@@ -165,7 +182,7 @@ public class WorldGenStronghold extends StructureGenerator<WorldGenFeatureEmptyC
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++k1;
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j1 = 0;
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k += 2 * k / (k1 + 1);
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- k = Math.min(k, this.aS.length - l1);
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+ k = Math.min(k, strongholdCoords.length - l1);
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d0 += random.nextDouble() * 3.141592653589793D * 2.0D;
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}
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}
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@@ -207,7 +224,7 @@ public class WorldGenStronghold extends StructureGenerator<WorldGenFeatureEmptyC
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this.a(chunkgenerator.getSeaLevel(), this.d, 10);
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} while (this.b.isEmpty() || worldgenstrongholdpieces_worldgenstrongholdstart.b == null);
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- ((WorldGenStronghold) this.k()).aT.add(this);
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+ chunkgenerator.getWorld().strongholdStuctures.add(this); // Paper - this worries me, this is never cleared, even in vanilla (world seed never changes "world", and that appears to be the only relevant world)
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}
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}
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}
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--
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2.22.0
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