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Fix World#isChunkGenerated calls (#2186) 

* 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)

* Ensure correct regionfile usage

This also bumps the minimum region file cache to 4 files given
readChunkData can load potentially 4 files.

* Fix closed check

* Better checks for invalid regionfile usage
This commit is contained in:
Spottedleaf 2019-06-16 20:52:34 -07:00 committed by Zach
parent 9bdce9f499
commit c319922ab1
4 changed files with 356 additions and 7 deletions
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15
Spigot-Server-Patches/0003-MC-Dev-fixes.patch
View File

@ -1,4 +1,4 @@
From 0bede9bb1f409504155f916ee0af4bce72714e18 Mon Sep 17 00:00:00 2001
From 7dd5454207eb940eb686d9179232938bfff3223b Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Wed, 30 Mar 2016 19:36:20 -0400
Subject: [PATCH] MC Dev fixes
@ -160,6 +160,19 @@ index c973ab6076..30701fd7f3 100644
+ return this.blockIds.a(iblockdata); // Paper - decompile fix
}
}
diff --git a/src/main/java/net/minecraft/server/ChunkStatus.java b/src/main/java/net/minecraft/server/ChunkStatus.java
index 26db8f135f..dd1822d6ff 100644
--- a/src/main/java/net/minecraft/server/ChunkStatus.java
+++ b/src/main/java/net/minecraft/server/ChunkStatus.java
@@ -84,7 +84,7 @@ public class ChunkStatus {
return (CompletableFuture) function.apply(ichunkaccess);
});
private static final List<ChunkStatus> q = ImmutableList.of(ChunkStatus.FULL, ChunkStatus.FEATURES, ChunkStatus.LIQUID_CARVERS, ChunkStatus.STRUCTURE_STARTS, ChunkStatus.STRUCTURE_STARTS, ChunkStatus.STRUCTURE_STARTS, ChunkStatus.STRUCTURE_STARTS, ChunkStatus.STRUCTURE_STARTS, ChunkStatus.STRUCTURE_STARTS, ChunkStatus.STRUCTURE_STARTS, ChunkStatus.STRUCTURE_STARTS);
- private static final IntList r = (IntList) SystemUtils.a((Object) (new IntArrayList(a().size())), (intarraylist) -> {
+ private static final IntList r = (IntList) SystemUtils.a((new IntArrayList(a().size())), (java.util.function.Consumer<IntArrayList>)(IntArrayList intarraylist) -> { // Paper - decompile fix
int i = 0;
for (int j = a().size() - 1; j >= 0; --j) {
diff --git a/src/main/java/net/minecraft/server/EntityFox.java b/src/main/java/net/minecraft/server/EntityFox.java
index a79262631c..5184e52626 100644
--- a/src/main/java/net/minecraft/server/EntityFox.java

6
Spigot-Server-Patches/0080-Sanitise-RegionFileCache-and-make-configurable.patch
View File

@ -1,4 +1,4 @@
From ddc2aa4243d3951dd9b6d4f79bae33099b316d99 Mon Sep 17 00:00:00 2001
From b32630a53238ec990917332b269e5e15d870be5a Mon Sep 17 00:00:00 2001
From: Antony Riley <antony@cyberiantiger.org>
Date: Tue, 29 Mar 2016 08:22:55 +0300
Subject: [PATCH] Sanitise RegionFileCache and make configurable.
@ -11,7 +11,7 @@ The implementation uses a LinkedHashMap as an LRU cache (modified from HashMap).
The maximum size of the RegionFileCache is also made configurable.
diff --git a/src/main/java/com/destroystokyo/paper/PaperConfig.java b/src/main/java/com/destroystokyo/paper/PaperConfig.java
index 6cc99ffe43..4424f7ef18 100644
index 6cc99ffe43..0cef1853f5 100644
--- a/src/main/java/com/destroystokyo/paper/PaperConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperConfig.java
@@ -218,4 +218,9 @@ public class PaperConfig {
@ -21,7 +21,7 @@ index 6cc99ffe43..4424f7ef18 100644
+
+ public static int regionFileCacheSize = 256;
+ private static void regionFileCacheSize() {
+ regionFileCacheSize = getInt("settings.region-file-cache-size", 256);
+ regionFileCacheSize = Math.max(getInt("settings.region-file-cache-size", 256), 4);
+ }
}
diff --git a/src/main/java/net/minecraft/server/RegionFileCache.java b/src/main/java/net/minecraft/server/RegionFileCache.java

6
Spigot-Server-Patches/0093-Configurable-Player-Collision.patch
View File

@ -1,16 +1,16 @@
From 24bd48049ea2c0885101aa56db9af20438f96769 Mon Sep 17 00:00:00 2001
From 760971cf0af6bdafbafd20368498ac95094d3ada Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Wed, 13 Apr 2016 02:10:49 -0400
Subject: [PATCH] Configurable Player Collision
diff --git a/src/main/java/com/destroystokyo/paper/PaperConfig.java b/src/main/java/com/destroystokyo/paper/PaperConfig.java
index 4424f7ef18..69bfe62416 100644
index 0cef1853f5..dc3438890b 100644
--- a/src/main/java/com/destroystokyo/paper/PaperConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperConfig.java
@@ -223,4 +223,9 @@ public class PaperConfig {
private static void regionFileCacheSize() {
regionFileCacheSize = getInt("settings.region-file-cache-size", 256);
regionFileCacheSize = Math.max(getInt("settings.region-file-cache-size", 256), 4);
}
+
+ public static boolean enablePlayerCollisions = true;

336
Spigot-Server-Patches/0403-Fix-World-isChunkGenerated-calls.patch Normal file
View File

@ -0,0 +1,336 @@
From c51e28b104b1df742a48f6ad8cbe6e655bd714bb 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/ChunkProviderServer.java b/src/main/java/net/minecraft/server/ChunkProviderServer.java
index d83eec0d76..459bd619ee 100644
--- a/src/main/java/net/minecraft/server/ChunkProviderServer.java
+++ b/src/main/java/net/minecraft/server/ChunkProviderServer.java
@@ -29,7 +29,7 @@ public class ChunkProviderServer extends IChunkProvider {
private final WorldServer world;
private final Thread serverThread;
private final LightEngineThreaded lightEngine;
- private final ChunkProviderServer.a serverThreadQueue;
+ public final ChunkProviderServer.a serverThreadQueue; // Paper private -> public
public final PlayerChunkMap playerChunkMap;
private final WorldPersistentData worldPersistentData;
private long lastTickTime;
@@ -119,6 +119,36 @@ public class ChunkProviderServer extends IChunkProvider {
return playerChunk.getFullChunk();
}
+
+ @Nullable
+ public IChunkAccess getChunkAtImmediately(int x, int z) {
+ if (Thread.currentThread() != this.serverThread) {
+ return CompletableFuture.supplyAsync(() -> {
+ return this.getChunkAtImmediately(x, z);
+ }, this.serverThreadQueue).join();
+ }
+
+ long k = ChunkCoordIntPair.pair(x, z);
+
+ IChunkAccess ichunkaccess;
+
+ for (int l = 0; l < 4; ++l) {
+ if (k == this.cachePos[l]) {
+ ichunkaccess = this.cacheChunk[l];
+ 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
+ return ichunkaccess;
+ }
+ }
+ }
+
+ PlayerChunk playerChunk = this.getChunk(k);
+ if (playerChunk == null) {
+ return null;
+ }
+
+ return playerChunk.getAvailableChunkNow();
+
+ }
// Paper end
@Nullable
diff --git a/src/main/java/net/minecraft/server/ChunkRegionLoader.java b/src/main/java/net/minecraft/server/ChunkRegionLoader.java
index 2f749fe26a..4906530d83 100644
--- a/src/main/java/net/minecraft/server/ChunkRegionLoader.java
+++ b/src/main/java/net/minecraft/server/ChunkRegionLoader.java
@@ -409,6 +409,17 @@ public class ChunkRegionLoader {
return nbttagcompound;
}
+ // Paper start
+ public static ChunkStatus getStatus(NBTTagCompound compound) {
+ if (compound == null) {
+ return null;
+ }
+
+ // Note: Copied from below
+ return ChunkStatus.getStatus(compound.getCompound("Level").getString("Status"));
+ }
+ // Paper end
+
public static ChunkStatus.Type a(@Nullable NBTTagCompound nbttagcompound) {
if (nbttagcompound != null) {
ChunkStatus chunkstatus = ChunkStatus.a(nbttagcompound.getCompound("Level").getString("Status"));
diff --git a/src/main/java/net/minecraft/server/ChunkStatus.java b/src/main/java/net/minecraft/server/ChunkStatus.java
index dd1822d6ff..e324989b46 100644
--- a/src/main/java/net/minecraft/server/ChunkStatus.java
+++ b/src/main/java/net/minecraft/server/ChunkStatus.java
@@ -176,6 +176,7 @@ public class ChunkStatus {
return this.s;
}
+ public ChunkStatus getPreviousStatus() { return this.e(); } // Paper - OBFHELPER
public ChunkStatus e() {
return this.u;
}
@@ -196,6 +197,17 @@ public class ChunkStatus {
return this.y;
}
+ // Paper start
+ public static ChunkStatus getStatus(String name) {
+ try {
+ // We need this otherwise we return EMPTY for invalid names
+ MinecraftKey key = new MinecraftKey(name);
+ return IRegistry.CHUNK_STATUS.getOptional(key).orElse(null);
+ } catch (Exception ex) {
+ return null; // invalid name
+ }
+ }
+ // Paper end
public static ChunkStatus a(String s) {
return (ChunkStatus) IRegistry.CHUNK_STATUS.get(MinecraftKey.a(s));
}
diff --git a/src/main/java/net/minecraft/server/PlayerChunk.java b/src/main/java/net/minecraft/server/PlayerChunk.java
index 806d225aaa..97040528a0 100644
--- a/src/main/java/net/minecraft/server/PlayerChunk.java
+++ b/src/main/java/net/minecraft/server/PlayerChunk.java
@@ -70,6 +70,19 @@ public class PlayerChunk {
Either<IChunkAccess, PlayerChunk.Failure> either = (Either<IChunkAccess, PlayerChunk.Failure>) statusFuture.getNow(null);
return either == null ? null : (Chunk) either.left().orElse(null);
}
+
+ public IChunkAccess getAvailableChunkNow() {
+ // TODO can we just getStatusFuture(EMPTY)?
+ for (ChunkStatus curr = ChunkStatus.FULL, next = curr.getPreviousStatus(); curr != next; curr = next, next = next.getPreviousStatus()) {
+ CompletableFuture<Either<IChunkAccess, PlayerChunk.Failure>> future = this.getStatusFutureUnchecked(curr);
+ Either<IChunkAccess, PlayerChunk.Failure> either = future.getNow(null);
+ if (either == null || !either.left().isPresent()) {
+ continue;
+ }
+ return either.left().get();
+ }
+ return null;
+ }
// Paper end
public CompletableFuture<Either<IChunkAccess, PlayerChunk.Failure>> getStatusFutureUnchecked(ChunkStatus chunkstatus) {
diff --git a/src/main/java/net/minecraft/server/PlayerChunkMap.java b/src/main/java/net/minecraft/server/PlayerChunkMap.java
index 86831c3526..f4bdb2eda3 100644
--- a/src/main/java/net/minecraft/server/PlayerChunkMap.java
+++ b/src/main/java/net/minecraft/server/PlayerChunkMap.java
@@ -808,10 +808,23 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
}
@Nullable
- private NBTTagCompound readChunkData(ChunkCoordIntPair chunkcoordintpair) throws IOException {
+ public NBTTagCompound readChunkData(ChunkCoordIntPair chunkcoordintpair) throws IOException { // Paper - private -> public
NBTTagCompound nbttagcompound = this.read(chunkcoordintpair);
- return nbttagcompound == null ? null : this.getChunkData(this.world.getWorldProvider().getDimensionManager(), this.m, nbttagcompound, chunkcoordintpair, world); // CraftBukkit
+ // Paper start - Cache chunk status on disk
+ if (nbttagcompound == null) {
+ return null;
+ }
+
+ nbttagcompound = this.getChunkData(this.world.getWorldProvider().getDimensionManager(), this.m, nbttagcompound, chunkcoordintpair, world); // CraftBukkit
+ if (nbttagcompound == null) {
+ return null;
+ }
+
+ this.getRegionFile(chunkcoordintpair, false).setStatus(chunkcoordintpair.x, chunkcoordintpair.z, ChunkRegionLoader.getStatus(nbttagcompound));
+
+ return nbttagcompound;
+ // Paper end
}
// Spigot Start
diff --git a/src/main/java/net/minecraft/server/RegionFile.java b/src/main/java/net/minecraft/server/RegionFile.java
index 2e14d84657..d610253b95 100644
--- a/src/main/java/net/minecraft/server/RegionFile.java
+++ b/src/main/java/net/minecraft/server/RegionFile.java
@@ -31,6 +31,47 @@ public class RegionFile implements AutoCloseable {
private final int[] d = new int[1024];private int[] timestamps = d; // Paper - OBFHELPER
private final List<Boolean> e; private List<Boolean> getFreeSectors() { return this.e; } // Paper - OBFHELPER
+ // 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[this.getChunkLocation(new ChunkCoordIntPair(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 = this.getChunkLocation(new ChunkCoordIntPair(x, z));
+ return this.statuses[location];
+ }
+
+ public ChunkStatus getStatus(int x, int z, PlayerChunkMap playerChunkMap) throws IOException {
+ if (this.closed) {
+ // We've used an invalid region file.
+ throw new java.io.EOFException("RegionFile is closed");
+ }
+ ChunkCoordIntPair chunkPos = new ChunkCoordIntPair(x, z);
+ int location = this.getChunkLocation(chunkPos);
+ ChunkStatus cached = this.statuses[location];
+ if (cached != null) {
+ return cached;
+ }
+
+ playerChunkMap.readChunkData(chunkPos); // This will set our status (yes it's disgusting)
+
+ return this.statuses[location];
+ }
+ // Paper end
+
public RegionFile(File file) throws IOException {
this.b = new RandomAccessFile(file, "rw");
this.file = file; // Spigot // Paper - We need this earlier
@@ -299,6 +340,7 @@ public class RegionFile implements AutoCloseable {
this.writeInt(i); // Paper - Avoid 3 io write calls
}
+ private final int getChunkLocation(ChunkCoordIntPair chunkcoordintpair) { return this.f(chunkcoordintpair); } // Paper - OBFHELPER
private int f(ChunkCoordIntPair chunkcoordintpair) {
return chunkcoordintpair.j() + chunkcoordintpair.k() * 32;
}
@@ -312,6 +354,7 @@ public class RegionFile implements AutoCloseable {
}
public void close() throws IOException {
+ this.closed = true; // Paper
this.b.close();
}
diff --git a/src/main/java/net/minecraft/server/RegionFileCache.java b/src/main/java/net/minecraft/server/RegionFileCache.java
index 6f34d8aea0..d1323891fa 100644
--- a/src/main/java/net/minecraft/server/RegionFileCache.java
+++ b/src/main/java/net/minecraft/server/RegionFileCache.java
@@ -110,6 +110,7 @@ public abstract class RegionFileCache implements AutoCloseable {
try {
NBTCompressedStreamTools.writeNBT(nbttagcompound, out);
out.close();
+ regionfile.setStatus(chunk.x, chunk.z, ChunkRegionLoader.getStatus(nbttagcompound)); // Paper - cache status on disk
regionfile.setOversized(chunkX, chunkZ, false);
} catch (RegionFile.ChunkTooLargeException ignored) {
printOversizedLog("ChunkTooLarge! Someone is trying to duplicate.", regionfile.file, chunkX, chunkZ);
@@ -127,6 +128,7 @@ public abstract class RegionFileCache implements AutoCloseable {
if (SIZE_THRESHOLD == OVERZEALOUS_THRESHOLD) {
resetFilterThresholds();
}
+ regionfile.setStatus(chunk.x, chunk.z, ChunkRegionLoader.getStatus(nbttagcompound)); // Paper - cache status on disk
} catch (RegionFile.ChunkTooLargeException e) {
printOversizedLog("ChunkTooLarge even after reduction. Trying in overzealous mode.", regionfile.file, chunkX, chunkZ);
// Eek, major fail. We have retry logic, so reduce threshholds and fall back
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
index 0cdf723480..4026edabc2 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
@@ -387,8 +387,20 @@ public class CraftWorld 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.getChunkProvider().serverThreadQueue).join();
+ }
+ IChunkAccess chunk = world.getChunkProvider().getChunkAtImmediately(x, z);
+ if (chunk != null) {
+ return chunk instanceof ProtoChunkExtension || chunk instanceof net.minecraft.server.Chunk;
+ }
try {
- return world.getChunkProvider().getChunkAtIfCachedImmediately(x, z) != null || world.getChunkProvider().playerChunkMap.chunkExists(new ChunkCoordIntPair(x, z)); // Paper
+ return world.getChunkProvider().playerChunkMap.getRegionFile(new ChunkCoordIntPair(x, z), false)
+ .getStatus(x, z, world.getChunkProvider().playerChunkMap) == ChunkStatus.FULL;
+ // Paper end
} catch (IOException ex) {
throw new RuntimeException(ex);
}
@@ -500,20 +512,14 @@ public class CraftWorld implements World {
@Override
public boolean loadChunk(int x, int z, boolean generate) {
org.spigotmc.AsyncCatcher.catchOp( "chunk load"); // Spigot
- IChunkAccess chunk = world.getChunkProvider().getChunkAt(x, z, generate || isChunkGenerated(x, z) ? ChunkStatus.FULL : ChunkStatus.EMPTY, true);
-
- // If generate = false, but the chunk already exists, we will get this back.
- if (chunk instanceof ProtoChunkExtension) {
- // We then cycle through again to get the full chunk immediately, rather than after the ticket addition
- chunk = world.getChunkProvider().getChunkAt(x, z, ChunkStatus.FULL, true);
- }
-
- if (chunk instanceof net.minecraft.server.Chunk) {
- world.getChunkProvider().addTicket(TicketType.PLUGIN, new ChunkCoordIntPair(x, z), 1, Unit.INSTANCE);
- return true;
+ // Paper - Optimize this method
+ if (!generate && !isChunkGenerated(x, z)) {
+ return false;
}
-
- return false;
+ world.getChunkProvider().addTicket(TicketType.PLUGIN, new ChunkCoordIntPair(x, z), 1, Unit.INSTANCE);
+ world.getChunkProvider().getChunkAt(x, z, ChunkStatus.FULL, true);
+ return true;
+ // Paper end
}
@Override
@@ -2125,21 +2131,11 @@ public class CraftWorld implements World {
// Paper start
private Chunk getChunkAtGen(int x, int z, boolean gen) {
- // copied from loadChunk()
- // this function is identical except we do not add a plugin ticket
- IChunkAccess chunk = world.getChunkProvider().getChunkAt(x, z, gen || isChunkGenerated(x, z) ? ChunkStatus.FULL : ChunkStatus.EMPTY, true);
-
- // If generate = false, but the chunk already exists, we will get this back.
- if (chunk instanceof ProtoChunkExtension) {
- // We then cycle through again to get the full chunk immediately, rather than after the ticket addition
- chunk = world.getChunkProvider().getChunkAt(x, z, ChunkStatus.FULL, true);
- }
-
- if (chunk instanceof net.minecraft.server.Chunk) {
- return ((net.minecraft.server.Chunk)chunk).bukkitChunk;
+ // Note: Copied from loadChunk()
+ if (!gen && !isChunkGenerated(x, z)) {
+ return null;
}
-
- return null;
+ return ((net.minecraft.server.Chunk)world.getChunkProvider().getChunkAt(x, z, ChunkStatus.FULL, true)).bukkitChunk;
}
@Override
--
2.21.0