geforkt von Mirrors/Paper
369 Zeilen
18 KiB
Diff
369 Zeilen
18 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: Sat, 15 Jun 2019 08:54:33 -0700
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Subject: [PATCH] Fix World#isChunkGenerated calls
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Optimize World#loadChunk() too
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This patch also adds a chunk status cache on region files (note that
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its only purpose is to cache the status on DISK)
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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 fa6d91886d433c0b7d77c1d059a23ee194ae14a4..56e292e6550b19d0cae9ebad369da730ca1cabd8 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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@@ -111,6 +111,19 @@ public class ChunkHolder {
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Either<ChunkAccess, ChunkHolder.ChunkLoadingFailure> either = (Either<ChunkAccess, ChunkHolder.ChunkLoadingFailure>) statusFuture.getNow(null);
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return (either == null) ? null : (LevelChunk) either.left().orElse(null);
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}
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+
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+ public ChunkAccess getAvailableChunkNow() {
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+ // TODO can we just getStatusFuture(EMPTY)?
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+ for (ChunkStatus curr = ChunkStatus.FULL, next = curr.getPreviousStatus(); curr != next; curr = next, next = next.getPreviousStatus()) {
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+ CompletableFuture<Either<ChunkAccess, ChunkHolder.ChunkLoadingFailure>> future = this.getFutureIfPresentUnchecked(curr);
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+ Either<ChunkAccess, ChunkHolder.ChunkLoadingFailure> either = future.getNow(null);
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+ if (either == null || !either.left().isPresent()) {
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+ continue;
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+ }
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+ return either.left().get();
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+ }
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+ return null;
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+ }
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// CraftBukkit end
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public CompletableFuture<Either<ChunkAccess, ChunkHolder.ChunkLoadingFailure>> getFutureIfPresentUnchecked(ChunkStatus leastStatus) {
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diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
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index 25826b41812f2d9ac29806ad7a9242e5674376fc..dd7de2c3db10d9d606d47c52eba40e71034fc11a 100644
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--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
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+++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
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@@ -84,6 +84,7 @@ import net.minecraft.world.level.chunk.ProtoChunk;
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import net.minecraft.world.level.chunk.UpgradeData;
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import net.minecraft.world.level.chunk.storage.ChunkSerializer;
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import net.minecraft.world.level.chunk.storage.ChunkStorage;
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+import net.minecraft.world.level.chunk.storage.RegionFile;
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import net.minecraft.world.level.entity.ChunkStatusUpdateListener;
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import net.minecraft.world.level.levelgen.structure.StructureStart;
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import net.minecraft.world.level.levelgen.structure.templatesystem.StructureManager;
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@@ -1083,12 +1084,61 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
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// Paper end
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@Nullable
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- private CompoundTag readChunk(ChunkPos pos) throws IOException {
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+ public CompoundTag readChunk(ChunkPos pos) throws IOException { // Paper - private -> public
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CompoundTag nbttagcompound = this.read(pos);
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+ // Paper start - Cache chunk status on disk
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+ if (nbttagcompound == null) {
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+ return null;
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+ }
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+
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+ nbttagcompound = this.getChunkData(this.level.getTypeKey(), this.overworldDataStorage, nbttagcompound, pos, level); // CraftBukkit
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+ if (nbttagcompound == null) {
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+ return null;
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+ }
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+
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+ this.updateChunkStatusOnDisk(pos, nbttagcompound);
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+
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+ return nbttagcompound;
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+ // Paper end
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+ }
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+
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+ // Paper start - chunk status cache "api"
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+ public ChunkStatus getChunkStatusOnDiskIfCached(ChunkPos chunkPos) {
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+ RegionFile regionFile = regionFileCache.getRegionFileIfLoaded(chunkPos);
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- return nbttagcompound == null ? null : this.getChunkData(this.level.getTypeKey(), this.overworldDataStorage, nbttagcompound, pos, level); // CraftBukkit
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+ return regionFile == null ? null : regionFile.getStatusIfCached(chunkPos.x, chunkPos.z);
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}
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+ public ChunkStatus getChunkStatusOnDisk(ChunkPos chunkPos) throws IOException {
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+ RegionFile regionFile = regionFileCache.getFile(chunkPos, true);
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+
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+ if (regionFile == null || !regionFileCache.chunkExists(chunkPos)) {
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+ return null;
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+ }
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+
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+ ChunkStatus status = regionFile.getStatusIfCached(chunkPos.x, chunkPos.z);
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+
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+ if (status != null) {
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+ return status;
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+ }
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+
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+ this.readChunk(chunkPos);
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+
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+ return regionFile.getStatusIfCached(chunkPos.x, chunkPos.z);
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+ }
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+
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+ public void updateChunkStatusOnDisk(ChunkPos chunkPos, @Nullable CompoundTag compound) throws IOException {
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+ RegionFile regionFile = regionFileCache.getFile(chunkPos, false);
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+
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+ regionFile.setStatus(chunkPos.x, chunkPos.z, ChunkSerializer.getStatus(compound));
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+ }
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+
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+ public ChunkAccess getUnloadingChunk(int chunkX, int chunkZ) {
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+ ChunkHolder chunkHolder = this.pendingUnloads.get(ChunkPos.asLong(chunkX, chunkZ));
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+ return chunkHolder == null ? null : chunkHolder.getAvailableChunkNow();
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+ }
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+ // Paper end
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+
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boolean noPlayersCloseForSpawning(ChunkPos chunkPos) {
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// Spigot start
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return this.isOutsideOfRange(chunkPos, false);
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diff --git a/src/main/java/net/minecraft/server/level/ServerChunkCache.java b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
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index 77bb2fb280293da4a38f9acc6503e84997ecb399..c47d1772044913475a60292162ef4be594bed4c6 100644
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--- a/src/main/java/net/minecraft/server/level/ServerChunkCache.java
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+++ b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
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@@ -52,10 +52,10 @@ public class ServerChunkCache extends ChunkSource {
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private static final List<ChunkStatus> CHUNK_STATUSES = ChunkStatus.getStatusList(); public static final List<ChunkStatus> getPossibleChunkStatuses() { return ServerChunkCache.CHUNK_STATUSES; } // Paper - OBFHELPER
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private final DistanceManager distanceManager;
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public final ChunkGenerator generator;
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- final ServerLevel level;
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- public final Thread mainThread; // Paper - package-private -> public
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- final ThreadedLevelLightEngine lightEngine;
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- public final ServerChunkCache.MainThreadExecutor mainThreadProcessor; // Paper - private -> public
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+ private final ServerLevel level;
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+ public final Thread mainThread; // Paper - private -> public
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+ private final ThreadedLevelLightEngine lightEngine;
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+ public final ServerChunkCache.MainThreadExecutor mainThreadProcessor; // Paper private -> public
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public final ChunkMap chunkMap;
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private final DimensionDataStorage dataStorage;
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private long lastInhabitedUpdate;
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@@ -324,6 +324,7 @@ public class ServerChunkCache extends ChunkSource {
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}
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// Paper end
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// Paper start - async chunk io
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+ @Nullable
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public ChunkAccess getChunkAtImmediately(int x, int z) {
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ChunkHolder holder = this.chunkMap.getVisibleChunkIfPresent(ChunkPos.asLong(x, z));
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if (holder == null) {
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@@ -922,7 +923,7 @@ public class ServerChunkCache extends ChunkSource {
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return this.lastSpawnState;
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}
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- private final class MainThreadExecutor extends BlockableEventLoop<Runnable> {
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+ public final class MainThreadExecutor extends BlockableEventLoop<Runnable> { // Paper - package -> public
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MainThreadExecutor(Level world) {
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super("Chunk source main thread executor for " + world.dimension().location());
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diff --git a/src/main/java/net/minecraft/world/level/chunk/ChunkStatus.java b/src/main/java/net/minecraft/world/level/chunk/ChunkStatus.java
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index 6e0cf8ee76143301c939fc4af5eeb091abdcbc5c..066f03ee7b4feda9ec2b0984ee7cf63fa0b9e4fc 100644
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--- a/src/main/java/net/minecraft/world/level/chunk/ChunkStatus.java
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+++ b/src/main/java/net/minecraft/world/level/chunk/ChunkStatus.java
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@@ -204,6 +204,7 @@ public class ChunkStatus {
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return this.name;
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}
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+ public ChunkStatus getPreviousStatus() { return this.getParent(); } // Paper - OBFHELPER
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public ChunkStatus getParent() {
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return this.parent;
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}
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@@ -224,6 +225,17 @@ public class ChunkStatus {
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return this.chunkType;
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}
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+ // Paper start
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+ public static ChunkStatus getStatus(String name) {
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+ try {
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+ // We need this otherwise we return EMPTY for invalid names
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+ ResourceLocation key = new ResourceLocation(name);
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+ return Registry.CHUNK_STATUS.getOptional(key).orElse(null);
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+ } catch (Exception ex) {
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+ return null; // invalid name
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+ }
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+ }
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+ // Paper end
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public static ChunkStatus byName(String id) {
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return (ChunkStatus) Registry.CHUNK_STATUS.get(ResourceLocation.tryParse(id));
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}
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diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/ChunkSerializer.java b/src/main/java/net/minecraft/world/level/chunk/storage/ChunkSerializer.java
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index 2621739b8dd11860084ea574c243cb8ba167ac40..fc320450878279a6aa48019fbde35bb183f5f06e 100644
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--- a/src/main/java/net/minecraft/world/level/chunk/storage/ChunkSerializer.java
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+++ b/src/main/java/net/minecraft/world/level/chunk/storage/ChunkSerializer.java
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@@ -545,6 +545,17 @@ public class ChunkSerializer {
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return nbttagcompound;
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}
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+ // Paper start
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+ public static ChunkStatus getStatus(CompoundTag compound) {
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+ if (compound == null) {
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+ return null;
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+ }
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+
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+ // Note: Copied from below
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+ return ChunkStatus.getStatus(compound.getCompound("Level").getString("Status"));
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+ }
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+ // Paper end
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+
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public static ChunkStatus.ChunkType getChunkTypeFromTag(@Nullable CompoundTag nbt) {
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if (nbt != null) {
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ChunkStatus chunkstatus = ChunkStatus.byName(nbt.getCompound("Level").getString("Status"));
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diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java
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index 357da4846344d1182ab7149c4d352d5019384715..832392cc2adc94e1fcb1055d91eb465529da1e92 100644
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--- a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java
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+++ b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java
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@@ -23,6 +23,7 @@ import java.nio.file.StandardOpenOption;
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import javax.annotation.Nullable;
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import net.minecraft.Util;
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import net.minecraft.world.level.ChunkPos;
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+import net.minecraft.world.level.chunk.ChunkStatus;
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import org.apache.logging.log4j.LogManager;
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import org.apache.logging.log4j.Logger;
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@@ -49,6 +50,30 @@ public class RegionFile implements AutoCloseable {
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protected final RegionBitmap usedSectors;
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public final java.util.concurrent.locks.ReentrantLock fileLock = new java.util.concurrent.locks.ReentrantLock(true); // Paper
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+ // Paper start - Cache chunk status
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+ private final ChunkStatus[] statuses = new ChunkStatus[32 * 32];
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+
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+ private boolean closed;
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+
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+ // invoked on write/read
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+ public void setStatus(int x, int z, ChunkStatus status) {
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+ if (this.closed) {
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+ // We've used an invalid region file.
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+ throw new IllegalStateException("RegionFile is closed");
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+ }
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+ this.statuses[getChunkLocation(x, z)] = status;
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+ }
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+
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+ public ChunkStatus getStatusIfCached(int x, int z) {
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+ if (this.closed) {
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+ // We've used an invalid region file.
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+ throw new IllegalStateException("RegionFile is closed");
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+ }
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+ final int location = getChunkLocation(x, z);
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+ return this.statuses[location];
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+ }
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+ // Paper end
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+
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public RegionFile(File file, File directory, boolean dsync) throws IOException {
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this(file.toPath(), directory.toPath(), RegionFileVersion.VERSION_DEFLATE, dsync);
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}
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@@ -395,6 +420,7 @@ public class RegionFile implements AutoCloseable {
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return this.getOffset(pos) != 0;
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}
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+ private static int getChunkLocation(int x, int z) { return (x & 31) + (z & 31) * 32; } // Paper - OBFHELPER - sort of, mirror of logic below
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private static int getOffsetIndex(ChunkPos pos) {
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return pos.getRegionLocalX() + pos.getRegionLocalZ() * 32;
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}
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@@ -405,6 +431,7 @@ public class RegionFile implements AutoCloseable {
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synchronized (this) {
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try {
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// Paper end
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+ this.closed = true; // Paper
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try {
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this.padToFullSector();
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} finally {
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diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java
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index 211ab6cffe78c61fcff12ef7ffba904c4cae57b2..1bee455235ece8aa299a2baeede027d251e6ff57 100644
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--- a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java
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+++ b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java
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@@ -143,6 +143,7 @@ public class RegionFileStorage implements AutoCloseable { // Paper - no final
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try {
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NbtIo.write(nbt, (DataOutput) dataoutputstream);
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+ regionfile.setStatus(pos.x, pos.z, ChunkSerializer.getStatus(nbt)); // Paper - cache status on disk
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} catch (Throwable throwable) {
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if (dataoutputstream != null) {
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try {
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@@ -205,3 +206,4 @@ public class RegionFileStorage implements AutoCloseable { // Paper - no final
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}
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}
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+
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diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
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index 98b2d054b6436e3fdb8fadd03369a65cf4156843..f9c58de7fa8b3c2ab5ac78cf0b366df69e0b40df 100644
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--- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
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+++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
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@@ -20,6 +20,7 @@ import java.util.Objects;
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import java.util.Random;
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import java.util.Set;
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import java.util.UUID;
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+import java.util.concurrent.CompletableFuture;
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import java.util.function.Predicate;
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import java.util.stream.Collectors;
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import net.minecraft.core.BlockPos;
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@@ -418,8 +419,22 @@ public class CraftWorld implements World {
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@Override
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public boolean isChunkGenerated(int x, int z) {
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+ // Paper start - Fix this method
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+ if (!Bukkit.isPrimaryThread()) {
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+ return CompletableFuture.supplyAsync(() -> {
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+ return CraftWorld.this.isChunkGenerated(x, z);
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+ }, world.getChunkSource().mainThreadProcessor).join();
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+ }
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+ ChunkAccess chunk = world.getChunkSource().getChunkAtImmediately(x, z);
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+ if (chunk == null) {
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+ chunk = world.getChunkSource().chunkMap.getUnloadingChunk(x, z);
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+ }
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+ if (chunk != null) {
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+ return chunk instanceof ImposterProtoChunk || chunk instanceof net.minecraft.world.level.chunk.LevelChunk;
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+ }
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try {
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- return this.world.getChunkSource().getChunkAtIfCachedImmediately(x, z) != null || this.world.getChunkSource().chunkMap.read(new ChunkPos(x, z)) != null; // Paper (TODO check if the first part can be removed)
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+ return world.getChunkSource().chunkMap.getChunkStatusOnDisk(new ChunkPos(x, z)) == ChunkStatus.FULL;
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+ // Paper end
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} catch (IOException ex) {
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throw new RuntimeException(ex);
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}
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@@ -530,20 +545,48 @@ public class CraftWorld implements World {
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@Override
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public boolean loadChunk(int x, int z, boolean generate) {
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org.spigotmc.AsyncCatcher.catchOp("chunk load"); // Spigot
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- ChunkAccess chunk = this.world.getChunkSource().getChunk(x, z, generate || isChunkGenerated(x, z) ? ChunkStatus.FULL : ChunkStatus.EMPTY, true); // Paper
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+ // Paper start - Optimize this method
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+ ChunkPos chunkPos = new ChunkPos(x, z);
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- // If generate = false, but the chunk already exists, we will get this back.
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- if (chunk instanceof ImposterProtoChunk) {
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- // We then cycle through again to get the full chunk immediately, rather than after the ticket addition
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- chunk = this.world.getChunkSource().getChunk(x, z, ChunkStatus.FULL, true);
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- }
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+ if (!generate) {
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+ ChunkAccess immediate = world.getChunkSource().getChunkAtImmediately(x, z);
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+ if (immediate == null) {
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+ immediate = world.getChunkSource().chunkMap.getUnloadingChunk(x, z);
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+ }
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+ if (immediate != null) {
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+ if (!(immediate instanceof ImposterProtoChunk) && !(immediate instanceof net.minecraft.world.level.chunk.LevelChunk)) {
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+ return false; // not full status
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+ }
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+ world.getChunkSource().addRegionTicket(TicketType.PLUGIN, chunkPos, 1, Unit.INSTANCE);
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+ world.getChunk(x, z); // make sure we're at ticket level 32 or lower
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+ return true;
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+ }
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- if (chunk instanceof net.minecraft.world.level.chunk.LevelChunk) {
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- this.world.getChunkSource().addRegionTicket(TicketType.PLUGIN, new ChunkPos(x, z), 1, Unit.INSTANCE);
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- return true;
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+ net.minecraft.world.level.chunk.storage.RegionFile file;
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+ try {
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+ file = world.getChunkSource().chunkMap.regionFileCache.getFile(chunkPos, false);
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+ } catch (IOException ex) {
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+ throw new RuntimeException(ex);
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+ }
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+
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+ ChunkStatus status = file.getStatusIfCached(x, z);
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+ if (!file.hasChunk(chunkPos) || (status != null && status != ChunkStatus.FULL)) {
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+ return false;
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+ }
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+
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+ ChunkAccess chunk = world.getChunkSource().getChunk(x, z, ChunkStatus.EMPTY, true);
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+ if (!(chunk instanceof ImposterProtoChunk) && !(chunk instanceof net.minecraft.world.level.chunk.LevelChunk)) {
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+ return false;
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+ }
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+
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+ // fall through to load
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+ // we do this so we do not re-read the chunk data on disk
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}
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- return false;
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+ world.getChunkSource().addRegionTicket(TicketType.PLUGIN, chunkPos, 1, Unit.INSTANCE);
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+ world.getChunkSource().getChunk(x, z, ChunkStatus.FULL, true);
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+ return true;
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+ // Paper end
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}
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@Override
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