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geforkt von Mirrors/Paper
Paper/patches/server/0334-Fix-World-isChunkGenerated-calls.patch
Jake 00be0b7b30 Updated Upstream (Bukkit/CraftBukkit/Spigot)
Upstream has released updates that appear 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:
d25437bc Update to Minecraft 1.18-pre8

CraftBukkit Changes:
5a39a236 Update to Minecraft 1.18-pre8

Spigot Changes:
7840c2af Update to Minecraft 1.18-pre8
2021-11-30 19:26:33 +01:00

293 Zeilen
14 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Sat, 15 Jun 2019 08:54:33 -0700
Subject: [PATCH] Fix World#isChunkGenerated calls
Optimize World#loadChunk() too
This patch also adds a chunk status cache on region files (note that
its only purpose is to cache the status on DISK)
diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
index 347cb9f7d403047b99c913a96292147ebbaaff2b..d302c074d8808145e425380eb0f8e5ccf8f256c3 100644
--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
+++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
@@ -86,6 +86,7 @@ import net.minecraft.world.level.chunk.ProtoChunk;
import net.minecraft.world.level.chunk.UpgradeData;
import net.minecraft.world.level.chunk.storage.ChunkSerializer;
import net.minecraft.world.level.chunk.storage.ChunkStorage;
+import net.minecraft.world.level.chunk.storage.RegionFile;
import net.minecraft.world.level.entity.ChunkStatusUpdateListener;
import net.minecraft.world.level.levelgen.blending.BlendingData;
import net.minecraft.world.level.levelgen.structure.StructureStart;
@@ -1210,10 +1211,59 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
@Nullable
public CompoundTag readChunk(ChunkPos pos) throws IOException {
CompoundTag nbttagcompound = this.read(pos);
+ // Paper start - Cache chunk status on disk
+ if (nbttagcompound == null) {
+ return null;
+ }
+
+ nbttagcompound = this.upgradeChunkTag(this.level.getTypeKey(), this.overworldDataStorage, nbttagcompound, this.generator.getTypeNameForDataFixer(), pos, level); // CraftBukkit
+ if (nbttagcompound == null) {
+ return null;
+ }
+
+ this.updateChunkStatusOnDisk(pos, nbttagcompound);
+
+ return nbttagcompound;
+ // Paper end
+ }
+
+ // Paper start - chunk status cache "api"
+ public ChunkStatus getChunkStatusOnDiskIfCached(ChunkPos chunkPos) {
+ RegionFile regionFile = regionFileCache.getRegionFileIfLoaded(chunkPos);
- return nbttagcompound == null ? null : this.upgradeChunkTag(this.level.getTypeKey(), this.overworldDataStorage, nbttagcompound, this.generator.getTypeNameForDataFixer(), pos, level); // CraftBukkit
+ return regionFile == null ? null : regionFile.getStatusIfCached(chunkPos.x, chunkPos.z);
}
+ public ChunkStatus getChunkStatusOnDisk(ChunkPos chunkPos) throws IOException {
+ RegionFile regionFile = regionFileCache.getRegionFile(chunkPos, true);
+
+ if (regionFile == null || !regionFileCache.chunkExists(chunkPos)) {
+ return null;
+ }
+
+ ChunkStatus status = regionFile.getStatusIfCached(chunkPos.x, chunkPos.z);
+
+ if (status != null) {
+ return status;
+ }
+
+ this.readChunk(chunkPos);
+
+ return regionFile.getStatusIfCached(chunkPos.x, chunkPos.z);
+ }
+
+ public void updateChunkStatusOnDisk(ChunkPos chunkPos, @Nullable CompoundTag compound) throws IOException {
+ RegionFile regionFile = regionFileCache.getRegionFile(chunkPos, false);
+
+ regionFile.setStatus(chunkPos.x, chunkPos.z, ChunkSerializer.getStatus(compound));
+ }
+
+ public ChunkAccess getUnloadingChunk(int chunkX, int chunkZ) {
+ ChunkHolder chunkHolder = this.pendingUnloads.get(ChunkPos.asLong(chunkX, chunkZ));
+ return chunkHolder == null ? null : chunkHolder.getAvailableChunkNow();
+ }
+ // Paper end
+
boolean anyPlayerCloseEnoughForSpawning(ChunkPos pos) {
// Spigot start
return this.anyPlayerCloseEnoughForSpawning(pos, false);
diff --git a/src/main/java/net/minecraft/world/level/chunk/ChunkStatus.java b/src/main/java/net/minecraft/world/level/chunk/ChunkStatus.java
index 328f482a0bae8d2f8013ae9a90f0500ef889ffb5..6c72854aa975800bd6160d104936a5ba978f4d67 100644
--- a/src/main/java/net/minecraft/world/level/chunk/ChunkStatus.java
+++ b/src/main/java/net/minecraft/world/level/chunk/ChunkStatus.java
@@ -290,6 +290,17 @@ public class ChunkStatus {
return this.chunkType;
}
+ // Paper start
+ public static ChunkStatus getStatus(String name) {
+ try {
+ // We need this otherwise we return EMPTY for invalid names
+ ResourceLocation key = new ResourceLocation(name);
+ return Registry.CHUNK_STATUS.getOptional(key).orElse(null);
+ } catch (Exception ex) {
+ return null; // invalid name
+ }
+ }
+ // Paper end
public static ChunkStatus byName(String id) {
return (ChunkStatus) Registry.CHUNK_STATUS.get(ResourceLocation.tryParse(id));
}
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
index 9168bc15f8fbc8719e6c83428b8241053505441e..384ee6fbc65baff381d875665fd2462dbc99683e 100644
--- a/src/main/java/net/minecraft/world/level/chunk/storage/ChunkSerializer.java
+++ b/src/main/java/net/minecraft/world/level/chunk/storage/ChunkSerializer.java
@@ -597,6 +597,17 @@ public class ChunkSerializer {
}));
}
+ // Paper start
+ public static @Nullable ChunkStatus getStatus(@Nullable CompoundTag compound) {
+ if (compound == null) {
+ return null;
+ }
+
+ // Note: Copied from below
+ return ChunkStatus.getStatus(compound.getCompound("Level").getString("Status"));
+ }
+ // Paper end
+
public static ChunkStatus.ChunkType getChunkTypeFromTag(@Nullable CompoundTag nbt) {
return nbt != null ? ChunkStatus.byName(nbt.getString("Status")).getChunkType() : ChunkStatus.ChunkType.PROTOCHUNK;
}
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
index 44de464b5f2190944c7a7316a76e13f9c3b954ab..293cce2c80fbdc18480977f5f6b24d6b4fa8dcf3 100644
--- a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java
+++ b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java
@@ -24,6 +24,7 @@ import net.minecraft.Util;
import net.minecraft.nbt.CompoundTag;
import net.minecraft.nbt.NbtIo;
import net.minecraft.world.level.ChunkPos;
+import net.minecraft.world.level.chunk.ChunkStatus;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
@@ -51,6 +52,30 @@ public class RegionFile implements AutoCloseable {
public final java.util.concurrent.locks.ReentrantLock fileLock = new java.util.concurrent.locks.ReentrantLock(true); // Paper
public final Path regionFile; // Paper
+ // Paper start - Cache chunk status
+ private final ChunkStatus[] statuses = new ChunkStatus[32 * 32];
+
+ private boolean closed;
+
+ // invoked on write/read
+ public void setStatus(int x, int z, ChunkStatus status) {
+ if (this.closed) {
+ // We've used an invalid region file.
+ throw new IllegalStateException("RegionFile is closed");
+ }
+ this.statuses[getChunkLocation(x, z)] = status;
+ }
+
+ public ChunkStatus getStatusIfCached(int x, int z) {
+ if (this.closed) {
+ // We've used an invalid region file.
+ throw new IllegalStateException("RegionFile is closed");
+ }
+ final int location = getChunkLocation(x, z);
+ return this.statuses[location];
+ }
+ // Paper end
+
public RegionFile(Path file, Path directory, boolean dsync) throws IOException {
this(file, directory, RegionFileVersion.VERSION_DEFLATE, dsync);
}
@@ -398,6 +423,7 @@ public class RegionFile implements AutoCloseable {
return this.getOffset(pos) != 0;
}
+ private static int getChunkLocation(int x, int z) { return (x & 31) + (z & 31) * 32; } // Paper - OBFHELPER - sort of, mirror of logic below
private static int getOffsetIndex(ChunkPos pos) {
return pos.getRegionLocalX() + pos.getRegionLocalZ() * 32;
}
@@ -408,6 +434,7 @@ public class RegionFile implements AutoCloseable {
synchronized (this) {
try {
// Paper end
+ this.closed = true; // Paper
try {
this.padToFullSector();
} finally {
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
index 164db987210aae06432a6abd9b22796c2168e212..91cf5878dc13e1abca0c301d1346248bda251cbf 100644
--- a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java
+++ b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java
@@ -248,6 +248,7 @@ public class RegionFileStorage implements AutoCloseable {
try {
NbtIo.write(nbt, (DataOutput) dataoutputstream);
+ regionfile.setStatus(pos.x, pos.z, ChunkSerializer.getStatus(nbt)); // Paper - cache status on disk
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
} catch (Throwable throwable) {
if (dataoutputstream != null) {
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
index bb95fec09594f7e2d38619ae4055ec9964635622..c4d5d78064cbef9386c00dc962e0a7889ed73d9d 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
@@ -19,6 +19,7 @@ import java.util.Objects;
import java.util.Random;
import java.util.Set;
import java.util.UUID;
+import java.util.concurrent.CompletableFuture;
import java.util.function.Predicate;
import java.util.stream.Collectors;
import net.minecraft.core.BlockPos;
@@ -280,8 +281,22 @@ public class CraftWorld extends CraftRegionAccessor implements World {
@Override
public boolean isChunkGenerated(int x, int z) {
+ // Paper start - Fix this method
+ if (!Bukkit.isPrimaryThread()) {
+ return CompletableFuture.supplyAsync(() -> {
+ return CraftWorld.this.isChunkGenerated(x, z);
+ }, world.getChunkSource().mainThreadProcessor).join();
+ }
+ ChunkAccess chunk = world.getChunkSource().getChunkAtImmediately(x, z);
+ if (chunk == null) {
+ chunk = world.getChunkSource().chunkMap.getUnloadingChunk(x, z);
+ }
+ if (chunk != null) {
+ return chunk instanceof ImposterProtoChunk || chunk instanceof net.minecraft.world.level.chunk.LevelChunk;
+ }
try {
- 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)
+ return world.getChunkSource().chunkMap.getChunkStatusOnDisk(new ChunkPos(x, z)) == ChunkStatus.FULL;
+ // Paper end
} catch (IOException ex) {
throw new RuntimeException(ex);
}
@@ -392,20 +407,48 @@ public class CraftWorld extends CraftRegionAccessor implements World {
@Override
public boolean loadChunk(int x, int z, boolean generate) {
org.spigotmc.AsyncCatcher.catchOp("chunk load"); // Spigot
- ChunkAccess chunk = this.world.getChunkSource().getChunk(x, z, generate || isChunkGenerated(x, z) ? ChunkStatus.FULL : ChunkStatus.EMPTY, true); // Paper
+ // Paper start - Optimize this method
+ ChunkPos chunkPos = new ChunkPos(x, z);
- // If generate = false, but the chunk already exists, we will get this back.
- if (chunk instanceof ImposterProtoChunk) {
- // We then cycle through again to get the full chunk immediately, rather than after the ticket addition
- chunk = this.world.getChunkSource().getChunk(x, z, ChunkStatus.FULL, true);
- }
+ if (!generate) {
+ ChunkAccess immediate = world.getChunkSource().getChunkAtImmediately(x, z);
+ if (immediate == null) {
+ immediate = world.getChunkSource().chunkMap.getUnloadingChunk(x, z);
+ }
+ if (immediate != null) {
+ if (!(immediate instanceof ImposterProtoChunk) && !(immediate instanceof net.minecraft.world.level.chunk.LevelChunk)) {
+ return false; // not full status
+ }
+ world.getChunkSource().addRegionTicket(TicketType.PLUGIN, chunkPos, 1, Unit.INSTANCE);
+ world.getChunk(x, z); // make sure we're at ticket level 32 or lower
+ return true;
+ }
- if (chunk instanceof net.minecraft.world.level.chunk.LevelChunk) {
- this.world.getChunkSource().addRegionTicket(TicketType.PLUGIN, new ChunkPos(x, z), 1, Unit.INSTANCE);
- return true;
+ net.minecraft.world.level.chunk.storage.RegionFile file;
+ try {
+ file = world.getChunkSource().chunkMap.regionFileCache.getRegionFile(chunkPos, false);
+ } catch (IOException ex) {
+ throw new RuntimeException(ex);
+ }
+
+ ChunkStatus status = file.getStatusIfCached(x, z);
+ if (!file.hasChunk(chunkPos) || (status != null && status != ChunkStatus.FULL)) {
+ return false;
+ }
+
+ ChunkAccess chunk = world.getChunkSource().getChunk(x, z, ChunkStatus.EMPTY, true);
+ if (!(chunk instanceof ImposterProtoChunk) && !(chunk instanceof net.minecraft.world.level.chunk.LevelChunk)) {
+ return false;
+ }
+
+ // fall through to load
+ // we do this so we do not re-read the chunk data on disk
}
- return false;
+ world.getChunkSource().addRegionTicket(TicketType.PLUGIN, chunkPos, 1, Unit.INSTANCE);
+ world.getChunkSource().getChunk(x, z, ChunkStatus.FULL, true);
+ return true;
+ // Paper end
}
@Override