geforkt von Mirrors/Paper
207 Zeilen
9.0 KiB
Diff
207 Zeilen
9.0 KiB
Diff
From 9cc3d9cf3540af0ac2e95217a151fe19d381f9f9 Mon Sep 17 00:00:00 2001
|
|
From: md_5 <git@md-5.net>
|
|
Date: Tue, 28 Jan 2014 20:32:07 +1100
|
|
Subject: [PATCH] Implement Threaded Bulk Chunk Compression and Caching
|
|
|
|
|
|
diff --git a/src/main/java/net/minecraft/server/EntityPlayer.java b/src/main/java/net/minecraft/server/EntityPlayer.java
|
|
index 9b853a9..a4c8843 100644
|
|
--- a/src/main/java/net/minecraft/server/EntityPlayer.java
|
|
+++ b/src/main/java/net/minecraft/server/EntityPlayer.java
|
|
@@ -228,6 +228,7 @@ public class EntityPlayer extends EntityHuman implements ICrafting {
|
|
}
|
|
|
|
if (!arraylist.isEmpty()) {
|
|
+ java.util.Collections.sort( arraylist, new PlayerChunkMap.ChunkComparator( this ) ); // Spigot - sort a final time before sending
|
|
this.playerConnection.sendPacket(new PacketPlayOutMapChunkBulk(arraylist));
|
|
Iterator iterator2 = arraylist1.iterator();
|
|
|
|
diff --git a/src/main/java/net/minecraft/server/PacketPlayOutMapChunkBulk.java b/src/main/java/net/minecraft/server/PacketPlayOutMapChunkBulk.java
|
|
index 30bf8a7..c40cf30 100644
|
|
--- a/src/main/java/net/minecraft/server/PacketPlayOutMapChunkBulk.java
|
|
+++ b/src/main/java/net/minecraft/server/PacketPlayOutMapChunkBulk.java
|
|
@@ -12,9 +12,9 @@ public class PacketPlayOutMapChunkBulk extends Packet {
|
|
private int[] b;
|
|
private int[] c;
|
|
private int[] d;
|
|
- private byte[] buffer;
|
|
- private byte[][] inflatedBuffers;
|
|
- private int size;
|
|
+ public byte[] buffer; // Spigot
|
|
+ public byte[][] inflatedBuffers; // Spigot
|
|
+ public int size; // Spigot
|
|
private boolean h;
|
|
private byte[] buildBuffer = new byte[0]; // CraftBukkit - remove static
|
|
// CraftBukkit start
|
|
diff --git a/src/main/java/net/minecraft/server/PlayerChunkMap.java b/src/main/java/net/minecraft/server/PlayerChunkMap.java
|
|
index ae4ca63..962e902 100644
|
|
--- a/src/main/java/net/minecraft/server/PlayerChunkMap.java
|
|
+++ b/src/main/java/net/minecraft/server/PlayerChunkMap.java
|
|
@@ -279,8 +279,27 @@ public class PlayerChunkMap {
|
|
return playermanager.d;
|
|
}
|
|
|
|
+ // Spigot Start
|
|
+ public static class ChunkComparator implements java.util.Comparator<Chunk>
|
|
+ {
|
|
+
|
|
+ private final ChunkCoordComparator base;
|
|
+
|
|
+ public ChunkComparator(EntityPlayer player)
|
|
+ {
|
|
+ this.base = new ChunkCoordComparator( player );
|
|
+ }
|
|
+
|
|
+ @Override
|
|
+ public int compare(Chunk o1, Chunk o2)
|
|
+ {
|
|
+ return base.compare( o1.l(), o2.l() );
|
|
+ }
|
|
+
|
|
+ }
|
|
// CraftBukkit start - Sorter to load nearby chunks first
|
|
- private static class ChunkCoordComparator implements java.util.Comparator<ChunkCoordIntPair> {
|
|
+ public static class ChunkCoordComparator implements java.util.Comparator<ChunkCoordIntPair> {
|
|
+ // Spigot End
|
|
private int x;
|
|
private int z;
|
|
|
|
diff --git a/src/main/java/net/minecraft/server/ServerConnectionChannel.java b/src/main/java/net/minecraft/server/ServerConnectionChannel.java
|
|
index fb95be4..a382235 100644
|
|
--- a/src/main/java/net/minecraft/server/ServerConnectionChannel.java
|
|
+++ b/src/main/java/net/minecraft/server/ServerConnectionChannel.java
|
|
@@ -1,14 +1,25 @@
|
|
package net.minecraft.server;
|
|
|
|
+import com.google.common.util.concurrent.ThreadFactoryBuilder; // Spigot
|
|
import net.minecraft.util.io.netty.channel.Channel;
|
|
import net.minecraft.util.io.netty.channel.ChannelException;
|
|
import net.minecraft.util.io.netty.channel.ChannelInitializer;
|
|
import net.minecraft.util.io.netty.channel.ChannelOption;
|
|
import net.minecraft.util.io.netty.handler.timeout.ReadTimeoutHandler;
|
|
+// Spigot Start
|
|
+import net.minecraft.util.io.netty.util.concurrent.DefaultEventExecutorGroup;
|
|
+import net.minecraft.util.io.netty.util.concurrent.EventExecutorGroup;
|
|
+import org.spigotmc.ChunkCompressor;
|
|
+import org.spigotmc.SpigotConfig;
|
|
+// Spigot End
|
|
|
|
class ServerConnectionChannel extends ChannelInitializer {
|
|
|
|
final ServerConnection a;
|
|
+ // Spigot Start
|
|
+ private static final EventExecutorGroup threadPool = new DefaultEventExecutorGroup( SpigotConfig.compressionThreads, new ThreadFactoryBuilder().setNameFormat( "Chunk Compressor #%d" ).setDaemon( true ).build() );
|
|
+ private static final ChunkCompressor chunkCompressor = new ChunkCompressor();
|
|
+ // Spigot End
|
|
|
|
ServerConnectionChannel(ServerConnection serverconnection) {
|
|
this.a = serverconnection;
|
|
@@ -28,6 +39,7 @@ class ServerConnectionChannel extends ChannelInitializer {
|
|
}
|
|
|
|
channel.pipeline().addLast("timeout", new ReadTimeoutHandler(30)).addLast("legacy_query", new LegacyPingHandler(this.a)).addLast("splitter", new PacketSplitter()).addLast("decoder", new PacketDecoder()).addLast("prepender", new PacketPrepender()).addLast("encoder", new PacketEncoder());
|
|
+ channel.pipeline().addLast( threadPool, "compressor", chunkCompressor ); // Spigot
|
|
NetworkManager networkmanager = new NetworkManager(false);
|
|
|
|
ServerConnection.a(this.a).add(networkmanager);
|
|
diff --git a/src/main/java/org/spigotmc/ChunkCompressor.java b/src/main/java/org/spigotmc/ChunkCompressor.java
|
|
new file mode 100644
|
|
index 0000000..f82a26d
|
|
--- /dev/null
|
|
+++ b/src/main/java/org/spigotmc/ChunkCompressor.java
|
|
@@ -0,0 +1,70 @@
|
|
+package org.spigotmc;
|
|
+
|
|
+import java.util.Arrays;
|
|
+import java.util.Iterator;
|
|
+import java.util.LinkedHashMap;
|
|
+import java.util.logging.Level;
|
|
+import java.util.zip.CRC32;
|
|
+import net.minecraft.server.PacketPlayOutMapChunkBulk;
|
|
+import net.minecraft.util.io.netty.channel.ChannelHandler;
|
|
+import net.minecraft.util.io.netty.channel.ChannelHandlerContext;
|
|
+import net.minecraft.util.io.netty.channel.ChannelOutboundHandlerAdapter;
|
|
+import net.minecraft.util.io.netty.channel.ChannelPromise;
|
|
+import org.bukkit.Bukkit;
|
|
+
|
|
+@ChannelHandler.Sharable
|
|
+public class ChunkCompressor extends ChannelOutboundHandlerAdapter
|
|
+{
|
|
+
|
|
+ private final LinkedHashMap<Long, byte[]> cache = new LinkedHashMap<Long, byte[]>( 16, 0.75f, true ); // Defaults, order by access
|
|
+ private volatile int cacheSize;
|
|
+
|
|
+ @Override
|
|
+ public synchronized void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise) throws Exception
|
|
+ {
|
|
+ try
|
|
+ {
|
|
+ long start = System.currentTimeMillis();
|
|
+ boolean cached = false;
|
|
+ if ( msg instanceof PacketPlayOutMapChunkBulk )
|
|
+ {
|
|
+ PacketPlayOutMapChunkBulk chunk = (PacketPlayOutMapChunkBulk) msg;
|
|
+ // Here we assign a hash to the chunk based on its contents. CRC32 is fast and sufficient for use here.
|
|
+ CRC32 crc = new CRC32();
|
|
+ for ( byte[] c : chunk.inflatedBuffers )
|
|
+ {
|
|
+ crc.update( c );
|
|
+ }
|
|
+ long hash = crc.getValue();
|
|
+
|
|
+ byte[] deflated = cache.get( hash );
|
|
+ if ( deflated != null )
|
|
+ {
|
|
+ chunk.buffer = deflated;
|
|
+ chunk.size = deflated.length;
|
|
+ cached = true;
|
|
+ } else
|
|
+ {
|
|
+ chunk.compress(); // Compress the chunk
|
|
+ byte[] buffer = Arrays.copyOf( chunk.buffer, chunk.size ); // Resize the array to correct sizing
|
|
+
|
|
+ Iterator<byte[]> iter = cache.values().iterator(); // Grab a single iterator reference
|
|
+ // Whilst this next entry is too big for us, and we have stuff to remove
|
|
+ while ( cacheSize + buffer.length > org.spigotmc.SpigotConfig.chunkCacheBytes && iter.hasNext() )
|
|
+ {
|
|
+ cacheSize -= iter.next().length; // Update size table
|
|
+ iter.remove(); // Remove it alltogether
|
|
+ }
|
|
+ cacheSize += buffer.length; // Update size table
|
|
+ cache.put( hash, buffer ); // Pop the new one in the cache
|
|
+ }
|
|
+ // System.out.println( "Time: " + ( System.currentTimeMillis() - start ) + " " + cached + " " + cacheSize );
|
|
+ }
|
|
+ } catch ( Throwable t )
|
|
+ {
|
|
+ Bukkit.getServer().getLogger().log( Level.WARNING, "Error compressing or caching chunk", t );
|
|
+ }
|
|
+
|
|
+ super.write( ctx, msg, promise );
|
|
+ }
|
|
+}
|
|
diff --git a/src/main/java/org/spigotmc/SpigotConfig.java b/src/main/java/org/spigotmc/SpigotConfig.java
|
|
index 552266b..6c6e6b0 100755
|
|
--- a/src/main/java/org/spigotmc/SpigotConfig.java
|
|
+++ b/src/main/java/org/spigotmc/SpigotConfig.java
|
|
@@ -266,4 +266,16 @@ public class SpigotConfig
|
|
{
|
|
playerShuffle = getInt( "settings.player-shuffle", 0 );
|
|
}
|
|
+
|
|
+ public static int compressionThreads = 1; // Stupid unit tests
|
|
+ public static int chunkCacheBytes;
|
|
+ private static void chunkStuff()
|
|
+ {
|
|
+ compressionThreads = getInt( "settings.compression-threads", 4 );
|
|
+ Bukkit.getLogger().log( Level.INFO, "Using {0} threads for async chunk compression", compressionThreads );
|
|
+
|
|
+ chunkCacheBytes = getInt( "settings.compressed-chunk-cache", 64 ) << 20;
|
|
+ Bukkit.getLogger().log( Level.INFO, "Reserving {0} bytes for compressed chunk cache", chunkCacheBytes );
|
|
+
|
|
+ }
|
|
}
|
|
--
|
|
1.8.3.2
|
|
|