geforkt von Mirrors/Paper
337 Zeilen
15 KiB
Diff
337 Zeilen
15 KiB
Diff
From 27e5668efea88ccb9b7f77a1d7222b6b9f2ac65a 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/ChunkProviderServer.java b/src/main/java/net/minecraft/server/ChunkProviderServer.java
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index d83eec0d76..459bd619ee 100644
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--- a/src/main/java/net/minecraft/server/ChunkProviderServer.java
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+++ b/src/main/java/net/minecraft/server/ChunkProviderServer.java
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@@ -29,7 +29,7 @@ public class ChunkProviderServer extends IChunkProvider {
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private final WorldServer world;
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private final Thread serverThread;
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private final LightEngineThreaded lightEngine;
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- private final ChunkProviderServer.a serverThreadQueue;
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+ public final ChunkProviderServer.a serverThreadQueue; // Paper private -> public
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public final PlayerChunkMap playerChunkMap;
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private final WorldPersistentData worldPersistentData;
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private long lastTickTime;
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@@ -119,6 +119,36 @@ public class ChunkProviderServer extends IChunkProvider {
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return playerChunk.getFullChunk();
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}
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+
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+ @Nullable
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+ public IChunkAccess getChunkAtImmediately(int x, int z) {
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+ if (Thread.currentThread() != this.serverThread) {
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+ return CompletableFuture.supplyAsync(() -> {
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+ return this.getChunkAtImmediately(x, z);
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+ }, this.serverThreadQueue).join();
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+ }
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+
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+ long k = ChunkCoordIntPair.pair(x, z);
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+
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+ IChunkAccess ichunkaccess;
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+
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+ for (int l = 0; l < 4; ++l) {
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+ if (k == this.cachePos[l]) {
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+ ichunkaccess = this.cacheChunk[l];
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+ if (ichunkaccess != null) { // CraftBukkit - the chunk can become accessible in the meantime TODO for non-null chunks it might also make sense to check that the chunk's state hasn't changed in the meantime
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+ return ichunkaccess;
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+ }
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+ }
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+ }
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+
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+ PlayerChunk playerChunk = this.getChunk(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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diff --git a/src/main/java/net/minecraft/server/ChunkRegionLoader.java b/src/main/java/net/minecraft/server/ChunkRegionLoader.java
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index 2f749fe26a..4906530d83 100644
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--- a/src/main/java/net/minecraft/server/ChunkRegionLoader.java
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+++ b/src/main/java/net/minecraft/server/ChunkRegionLoader.java
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@@ -409,6 +409,17 @@ public class ChunkRegionLoader {
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return nbttagcompound;
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}
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+ // Paper start
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+ public static ChunkStatus getStatus(NBTTagCompound 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.Type a(@Nullable NBTTagCompound nbttagcompound) {
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if (nbttagcompound != null) {
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ChunkStatus chunkstatus = ChunkStatus.a(nbttagcompound.getCompound("Level").getString("Status"));
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diff --git a/src/main/java/net/minecraft/server/ChunkStatus.java b/src/main/java/net/minecraft/server/ChunkStatus.java
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index dd1822d6ff..e324989b46 100644
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--- a/src/main/java/net/minecraft/server/ChunkStatus.java
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+++ b/src/main/java/net/minecraft/server/ChunkStatus.java
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@@ -176,6 +176,7 @@ public class ChunkStatus {
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return this.s;
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}
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+ public ChunkStatus getPreviousStatus() { return this.e(); } // Paper - OBFHELPER
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public ChunkStatus e() {
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return this.u;
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}
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@@ -196,6 +197,17 @@ public class ChunkStatus {
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return this.y;
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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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+ MinecraftKey key = new MinecraftKey(name);
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+ return IRegistry.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 a(String s) {
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return (ChunkStatus) IRegistry.CHUNK_STATUS.get(MinecraftKey.a(s));
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}
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diff --git a/src/main/java/net/minecraft/server/PlayerChunk.java b/src/main/java/net/minecraft/server/PlayerChunk.java
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index 806d225aaa..97040528a0 100644
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--- a/src/main/java/net/minecraft/server/PlayerChunk.java
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+++ b/src/main/java/net/minecraft/server/PlayerChunk.java
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@@ -70,6 +70,19 @@ public class PlayerChunk {
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Either<IChunkAccess, PlayerChunk.Failure> either = (Either<IChunkAccess, PlayerChunk.Failure>) statusFuture.getNow(null);
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return either == null ? null : (Chunk) either.left().orElse(null);
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}
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+
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+ public IChunkAccess 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<IChunkAccess, PlayerChunk.Failure>> future = this.getStatusFutureUnchecked(curr);
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+ Either<IChunkAccess, PlayerChunk.Failure> 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<IChunkAccess, PlayerChunk.Failure>> getStatusFutureUnchecked(ChunkStatus chunkstatus) {
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diff --git a/src/main/java/net/minecraft/server/PlayerChunkMap.java b/src/main/java/net/minecraft/server/PlayerChunkMap.java
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index b71f98b0c5..e89738a08d 100644
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--- a/src/main/java/net/minecraft/server/PlayerChunkMap.java
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+++ b/src/main/java/net/minecraft/server/PlayerChunkMap.java
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@@ -811,10 +811,23 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
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}
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@Nullable
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- private NBTTagCompound readChunkData(ChunkCoordIntPair chunkcoordintpair) throws IOException {
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+ public NBTTagCompound readChunkData(ChunkCoordIntPair chunkcoordintpair) throws IOException { // Paper - private -> public
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NBTTagCompound nbttagcompound = this.read(chunkcoordintpair);
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- return nbttagcompound == null ? null : this.getChunkData(this.world.getWorldProvider().getDimensionManager(), this.m, nbttagcompound, chunkcoordintpair, world); // CraftBukkit
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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.world.getWorldProvider().getDimensionManager(), this.m, nbttagcompound, chunkcoordintpair, world); // 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.getRegionFile(chunkcoordintpair, false).setStatus(chunkcoordintpair.x, chunkcoordintpair.z, ChunkRegionLoader.getStatus(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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// Spigot Start
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diff --git a/src/main/java/net/minecraft/server/RegionFile.java b/src/main/java/net/minecraft/server/RegionFile.java
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index 2e14d84657..d610253b95 100644
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--- a/src/main/java/net/minecraft/server/RegionFile.java
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+++ b/src/main/java/net/minecraft/server/RegionFile.java
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@@ -31,6 +31,47 @@ public class RegionFile implements AutoCloseable {
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private final int[] d = new int[1024];private int[] timestamps = d; // Paper - OBFHELPER
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private final List<Boolean> e; private List<Boolean> getFreeSectors() { return this.e; } // Paper - OBFHELPER
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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[this.getChunkLocation(new ChunkCoordIntPair(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 = this.getChunkLocation(new ChunkCoordIntPair(x, z));
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+ return this.statuses[location];
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+ }
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+
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+ public ChunkStatus getStatus(int x, int z, PlayerChunkMap playerChunkMap) throws IOException {
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+ if (this.closed) {
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+ // We've used an invalid region file.
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+ throw new java.io.EOFException("RegionFile is closed");
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+ }
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+ ChunkCoordIntPair chunkPos = new ChunkCoordIntPair(x, z);
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+ int location = this.getChunkLocation(chunkPos);
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+ ChunkStatus cached = this.statuses[location];
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+ if (cached != null) {
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+ return cached;
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+ }
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+
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+ playerChunkMap.readChunkData(chunkPos); // This will set our status (yes it's disgusting)
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+
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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) throws IOException {
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this.b = new RandomAccessFile(file, "rw");
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this.file = file; // Spigot // Paper - We need this earlier
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@@ -299,6 +340,7 @@ public class RegionFile implements AutoCloseable {
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this.writeInt(i); // Paper - Avoid 3 io write calls
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}
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+ private final int getChunkLocation(ChunkCoordIntPair chunkcoordintpair) { return this.f(chunkcoordintpair); } // Paper - OBFHELPER
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private int f(ChunkCoordIntPair chunkcoordintpair) {
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return chunkcoordintpair.j() + chunkcoordintpair.k() * 32;
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}
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@@ -312,6 +354,7 @@ public class RegionFile implements AutoCloseable {
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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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this.b.close();
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}
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diff --git a/src/main/java/net/minecraft/server/RegionFileCache.java b/src/main/java/net/minecraft/server/RegionFileCache.java
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index 6f34d8aea0..d1323891fa 100644
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--- a/src/main/java/net/minecraft/server/RegionFileCache.java
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+++ b/src/main/java/net/minecraft/server/RegionFileCache.java
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@@ -110,6 +110,7 @@ public abstract class RegionFileCache implements AutoCloseable {
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try {
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NBTCompressedStreamTools.writeNBT(nbttagcompound, out);
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out.close();
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+ regionfile.setStatus(chunk.x, chunk.z, ChunkRegionLoader.getStatus(nbttagcompound)); // Paper - cache status on disk
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regionfile.setOversized(chunkX, chunkZ, false);
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} catch (RegionFile.ChunkTooLargeException ignored) {
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printOversizedLog("ChunkTooLarge! Someone is trying to duplicate.", regionfile.file, chunkX, chunkZ);
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@@ -127,6 +128,7 @@ public abstract class RegionFileCache implements AutoCloseable {
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if (SIZE_THRESHOLD == OVERZEALOUS_THRESHOLD) {
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resetFilterThresholds();
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}
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+ regionfile.setStatus(chunk.x, chunk.z, ChunkRegionLoader.getStatus(nbttagcompound)); // Paper - cache status on disk
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} catch (RegionFile.ChunkTooLargeException e) {
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printOversizedLog("ChunkTooLarge even after reduction. Trying in overzealous mode.", regionfile.file, chunkX, chunkZ);
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// Eek, major fail. We have retry logic, so reduce threshholds and fall back
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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 e0d89cc533..53d4f46d45 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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@@ -387,8 +387,20 @@ 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.getChunkProvider().serverThreadQueue).join();
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+ }
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+ IChunkAccess chunk = world.getChunkProvider().getChunkAtImmediately(x, z);
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+ if (chunk != null) {
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+ return chunk instanceof ProtoChunkExtension || chunk instanceof net.minecraft.server.Chunk;
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+ }
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try {
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- return world.getChunkProvider().getChunkAtIfCachedImmediately(x, z) != null || world.getChunkProvider().playerChunkMap.chunkExists(new ChunkCoordIntPair(x, z)); // Paper
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+ return world.getChunkProvider().playerChunkMap.getRegionFile(new ChunkCoordIntPair(x, z), false)
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+ .getStatus(x, z, world.getChunkProvider().playerChunkMap) == 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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@@ -500,20 +512,14 @@ 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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- IChunkAccess chunk = world.getChunkProvider().getChunkAt(x, z, generate || isChunkGenerated(x, z) ? ChunkStatus.FULL : ChunkStatus.EMPTY, true);
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-
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- // If generate = false, but the chunk already exists, we will get this back.
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- if (chunk instanceof ProtoChunkExtension) {
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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.getChunkProvider().getChunkAt(x, z, ChunkStatus.FULL, true);
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- }
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-
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- if (chunk instanceof net.minecraft.server.Chunk) {
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- world.getChunkProvider().addTicket(TicketType.PLUGIN, new ChunkCoordIntPair(x, z), 1, Unit.INSTANCE);
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- return true;
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+ // Paper - Optimize this method
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+ if (!generate && !isChunkGenerated(x, z)) {
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+ return false;
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}
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-
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- return false;
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+ world.getChunkProvider().addTicket(TicketType.PLUGIN, new ChunkCoordIntPair(x, z), 1, Unit.INSTANCE);
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+ world.getChunkProvider().getChunkAt(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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@@ -2127,21 +2133,11 @@ public class CraftWorld implements World {
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// Paper start
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private Chunk getChunkAtGen(int x, int z, boolean gen) {
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- // copied from loadChunk()
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- // this function is identical except we do not add a plugin ticket
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- IChunkAccess chunk = world.getChunkProvider().getChunkAt(x, z, gen || isChunkGenerated(x, z) ? ChunkStatus.FULL : ChunkStatus.EMPTY, true);
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-
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- // If generate = false, but the chunk already exists, we will get this back.
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- if (chunk instanceof ProtoChunkExtension) {
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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.getChunkProvider().getChunkAt(x, z, ChunkStatus.FULL, true);
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- }
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-
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- if (chunk instanceof net.minecraft.server.Chunk) {
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- return ((net.minecraft.server.Chunk)chunk).bukkitChunk;
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+ // Note: Copied from loadChunk()
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+ if (!gen && !isChunkGenerated(x, z)) {
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+ return null;
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}
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-
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- return null;
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+ return ((net.minecraft.server.Chunk)world.getChunkProvider().getChunkAt(x, z, ChunkStatus.FULL, true)).bukkitChunk;
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}
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@Override
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--
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2.21.0
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