geforkt von Mirrors/Paper
391 Zeilen
18 KiB
Diff
391 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 a89b9dab043ad4536014141d5a942670b4152a95..7010e0a970462d2b2e1b5696a1a49dba9ea60935 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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@@ -141,6 +141,19 @@ 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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// Paper 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 7585b6f87b72f53deccbcb8627a13503921fc682..0aac29de933c84c34cb24e204e8fcc7010060d8f 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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@@ -991,12 +991,61 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
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}
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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 = this.getIOWorker().getRegionFileCache().getRegionFileIfLoaded(chunkPos);
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+
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+ return regionFile == null ? null : regionFile.getStatusIfCached(chunkPos.x, chunkPos.z);
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+ }
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+
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+ public ChunkStatus getChunkStatusOnDisk(ChunkPos chunkPos) throws IOException {
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+ RegionFile regionFile = this.getIOWorker().getRegionFileCache().getFile(chunkPos, true);
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+
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+ if (regionFile == null || !regionFile.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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- return nbttagcompound == null ? null : this.getChunkData(this.level.getTypeKey(), this.overworldDataStorage, nbttagcompound, pos, level); // CraftBukkit
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+ return regionFile.getStatusIfCached(chunkPos.x, chunkPos.z);
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}
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+ public void updateChunkStatusOnDisk(ChunkPos chunkPos, @Nullable CompoundTag compound) throws IOException {
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+ RegionFile regionFile = this.getIOWorker().getRegionFileCache().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 chunkcoordintpair) {
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// Spigot start
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return isOutsideOfRange(chunkcoordintpair, 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 6d33c1ee44bc732b58d18a8f6b0fd4bbdcb2dcd6..1e8ac0110badbf2d1c2336168c3e11991667c782 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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@@ -52,7 +52,7 @@ public class ServerChunkCache extends ChunkSource {
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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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- private final ServerChunkCache.MainThreadExecutor mainThreadProcessor;
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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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@@ -317,6 +317,21 @@ public class ServerChunkCache extends ChunkSource {
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return ret;
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}
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+
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+ @Nullable
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+ public ChunkAccess getChunkAtImmediately(int x, int z) {
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+ long k = ChunkPos.asLong(x, z);
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+
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+ // Note: Bypass cache to make this MT-Safe
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+
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+ ChunkHolder playerChunk = this.getVisibleChunkIfPresent(k);
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+ if (playerChunk == null) {
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+ return null;
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+ }
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+
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+ return playerChunk.getAvailableChunkNow();
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+
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+ }
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// Paper end
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@Nullable
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@@ -771,7 +786,7 @@ public class ServerChunkCache extends ChunkSource {
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return this.lastSpawnState;
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}
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- final class MainThreadExecutor extends BlockableEventLoop<Runnable> {
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+ public final class MainThreadExecutor extends BlockableEventLoop<Runnable> { // Paper - package -> public
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private 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 ae84dc310c076e3212d3cdbca77a1ab06a11d479..46d5a24332c1fd3c164b760ec2a2d5bf859b1ab6 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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@@ -193,6 +193,7 @@ 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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@@ -213,6 +214,17 @@ 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 542d6f322df5f44ad9f504c8e14c88e3fa540657..969130442b529eaac6f708107ff129f89cc0af90 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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@@ -462,6 +462,17 @@ public class ChunkSerializer {
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}
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// Paper end
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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 tag) {
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if (tag != null) {
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ChunkStatus chunkstatus = ChunkStatus.byName(tag.getCompound("Level").getString("Status"));
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diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/ChunkStorage.java b/src/main/java/net/minecraft/world/level/chunk/storage/ChunkStorage.java
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index 637274532b01bb7b4cdb7d7b1b58181b98ac7e98..9cffef2098fbfba89ddd88a45bde33c07660497a 100644
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--- a/src/main/java/net/minecraft/world/level/chunk/storage/ChunkStorage.java
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+++ b/src/main/java/net/minecraft/world/level/chunk/storage/ChunkStorage.java
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@@ -21,7 +21,7 @@ import net.minecraft.world.level.storage.DimensionDataStorage;
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public class ChunkStorage implements AutoCloseable {
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- private final IOWorker worker;
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+ private final IOWorker worker; public IOWorker getIOWorker() { return worker; } // Paper - OBFHELPER
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protected final DataFixer fixerUpper;
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@Nullable
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private LegacyStructureDataHandler legacyStructureHandler;
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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 424628c9588c02454558bc7e7c5bad3a3e75ec9f..4d96e5ed28c910387c0a4238c9036c7a12458f57 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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@@ -27,6 +27,7 @@ import net.minecraft.Util;
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import net.minecraft.nbt.CompoundTag;
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import net.minecraft.nbt.NbtIo;
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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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@@ -44,6 +45,30 @@ public class RegionFile implements AutoCloseable {
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protected final RegionBitmap usedSectors;
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public final File file; // 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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@@ -380,11 +405,13 @@ 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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public void close() throws IOException {
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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 6d3e1bb20d1ab8ce5c9ea613322042d80550761a..6f1c96e4325caf6b4762700ad2286d9ea41515c9 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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@@ -28,7 +28,14 @@ public final class RegionFileStorage implements AutoCloseable {
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this.sync = dsync;
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}
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- private RegionFile getFile(ChunkPos chunkcoordintpair, boolean existingOnly) throws IOException { // CraftBukkit
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+
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+ // Paper start
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+ public RegionFile getRegionFileIfLoaded(ChunkPos chunkcoordintpair) {
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+ return this.regionCache.getAndMoveToFirst(ChunkPos.asLong(chunkcoordintpair.getRegionX(), chunkcoordintpair.getRegionZ()));
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+ }
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+
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+ // Paper end
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+ public RegionFile getFile(ChunkPos chunkcoordintpair, boolean existingOnly) throws IOException { // CraftBukkit // Paper - private > public
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long i = ChunkPos.asLong(chunkcoordintpair.getRegionX(), chunkcoordintpair.getRegionZ());
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RegionFile regionfile = (RegionFile) this.regionCache.getAndMoveToFirst(i);
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@@ -175,6 +182,7 @@ public final class RegionFileStorage implements AutoCloseable {
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try {
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NbtIo.write(tag, (DataOutput) dataoutputstream);
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+ regionfile.setStatus(pos.x, pos.z, ChunkSerializer.getStatus(tag)); // Paper - cache status on disk
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regionfile.setOversized(pos.x, pos.z, false); // Paper - We don't do this anymore, mojang stores differently, but clear old meta flag if it exists to get rid of our own meta file once last oversized is gone
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} catch (Throwable throwable1) {
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throwable = throwable1;
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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 0cb0021fac211996c5bdbb2cfc8f54addc3b49f6..a0615e4ba015cca4fe074de63b87d0bff84b1a14 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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@@ -19,6 +19,7 @@ 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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@@ -401,8 +402,22 @@ 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 world.getChunkSource().getChunkAtIfCachedImmediately(x, z) != null || 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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@@ -513,20 +528,48 @@ 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 = 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 = 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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- 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.getIOWorker().getRegionFileCache().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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|
|
|
@Override
|