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Code Issues Releases Activity
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ver/1.21.5
Leaf/leaf-server/minecraft-patches/features/0214-Async-chunk-sending.patch
hayanesuru 34d9673f3e backport from dev/1.21.6 
73ffcb09fa optimize mob spawning
333373d204 fix async mob spawning data race
7c9f88e4f8 [ci skip] cleanup
bf9486f0f0 remove hash lookup in optimize random tick
915ac01cd3 cleanup
b90c1cd527 fix playermobcaps command
fd34d9f626 cleanup
5d663b4d36 optimize collectSpawningChunks (#382)
2025-06-29 23:58:26 +09:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Taiyou06 <kaandindar21@gmail.com>
Date: Sun, 2 Mar 2025 21:23:20 +0100
Subject: [PATCH] Async chunk sending
diff --git a/ca/spottedleaf/moonrise/patches/chunk_system/player/RegionizedPlayerChunkLoader.java b/ca/spottedleaf/moonrise/patches/chunk_system/player/RegionizedPlayerChunkLoader.java
index 32608df3da169159c070f37cb55407f4f6187744..fc3901acdfcdad85fbd435ca21869388a90b2207 100644
--- a/ca/spottedleaf/moonrise/patches/chunk_system/player/RegionizedPlayerChunkLoader.java
+++ b/ca/spottedleaf/moonrise/patches/chunk_system/player/RegionizedPlayerChunkLoader.java
@@ -436,7 +436,15 @@ public final class RegionizedPlayerChunkLoader {
// Note: drop isAlive() check so that chunks properly unload client-side when the player dies
((ChunkSystemChunkHolder)((ChunkSystemServerLevel)this.world).moonrise$getChunkTaskScheduler().chunkHolderManager
.getChunkHolder(chunkX, chunkZ).vanillaChunkHolder).moonrise$removeReceivedChunk(this.player);
- this.player.connection.send(new ClientboundForgetLevelChunkPacket(new ChunkPos(chunkX, chunkZ)));
+ // Leaf start - Async chunk sending
+ if (org.dreeam.leaf.config.modules.async.AsyncChunkSend.enabled) {
+ org.dreeam.leaf.async.chunk.AsyncChunkSend.POOL.execute(
+ () -> this.player.connection.send(new ClientboundForgetLevelChunkPacket(new ChunkPos(chunkX, chunkZ)))
+ );
+ } else {
+ this.player.connection.send(new ClientboundForgetLevelChunkPacket(new ChunkPos(chunkX, chunkZ)));
+ }
+ // Leaf end - Async chunk sending
// Paper start - PlayerChunkUnloadEvent
if (io.papermc.paper.event.packet.PlayerChunkUnloadEvent.getHandlerList().getRegisteredListeners().length > 0) {
new io.papermc.paper.event.packet.PlayerChunkUnloadEvent(player.getBukkitEntity().getWorld().getChunkAt(new ChunkPos(chunkX, chunkZ).longKey), player.getBukkitEntity()).callEvent();
diff --git a/net/minecraft/network/protocol/game/ClientboundLevelChunkPacketData.java b/net/minecraft/network/protocol/game/ClientboundLevelChunkPacketData.java
index 526c117e0d53ad527eb610c79cdc46ec16b18c0c..9e5edbb05900fdaa8b9deed0fc65e9ca31fe6d61 100644
--- a/net/minecraft/network/protocol/game/ClientboundLevelChunkPacketData.java
+++ b/net/minecraft/network/protocol/game/ClientboundLevelChunkPacketData.java
@@ -75,6 +75,45 @@ public class ClientboundLevelChunkPacketData {
}
}
+ // Leaf start - Async chunk sending
+ public ClientboundLevelChunkPacketData(LevelChunk levelChunk, io.papermc.paper.antixray.ChunkPacketInfo<net.minecraft.world.level.block.state.BlockState> chunkPacketInfo, BlockEntity[] blockEntities, Map<Heightmap.Types, long[]> heightmaps) {
+ this.heightmaps = heightmaps;
+
+ if (Thread.currentThread() instanceof org.dreeam.leaf.async.chunk.AsyncChunkSendThread) {
+ ByteBuf buffer = Unpooled.buffer(calculateChunkSize(levelChunk));
+ extractChunkData(new FriendlyByteBuf(buffer), levelChunk, chunkPacketInfo);
+ byte[] array = it.unimi.dsi.fastutil.bytes.ByteArrays.setLength(buffer.array(), buffer.writerIndex());
+ if (chunkPacketInfo != null) {
+ chunkPacketInfo.setBuffer(array);
+ }
+ this.buffer = array;
+ } else {
+ this.buffer = new byte[calculateChunkSize(levelChunk)];
+ // Paper start - Anti-Xray - Add chunk packet info
+ if (chunkPacketInfo != null) {
+ chunkPacketInfo.setBuffer(this.buffer);
+ }
+ extractChunkData(new FriendlyByteBuf(this.getWriteBuffer()), levelChunk, chunkPacketInfo);
+ }
+
+ this.blockEntitiesData = Lists.newArrayList();
+ int totalTileEntities = 0; // Paper - Handle oversized block entities in chunks
+
+ for (BlockEntity blockEntity : blockEntities) {
+ // Paper start - Handle oversized block entities in chunks
+ if (++totalTileEntities > BLOCK_ENTITY_LIMIT) {
+ net.minecraft.network.protocol.Packet<ClientGamePacketListener> packet = blockEntity.getUpdatePacket();
+ if (packet != null) {
+ this.extraPackets.add(packet);
+ continue;
+ }
+ }
+ // Paper end - Handle oversized block entities in chunks
+ this.blockEntitiesData.add(ClientboundLevelChunkPacketData.BlockEntityInfo.create(blockEntity));
+ }
+ }
+ // Leaf end - Async chunk sending
+
public ClientboundLevelChunkPacketData(RegistryFriendlyByteBuf buffer, int x, int z) {
this.heightmaps = HEIGHTMAPS_STREAM_CODEC.decode(buffer);
int varInt = buffer.readVarInt();
diff --git a/net/minecraft/network/protocol/game/ClientboundLevelChunkWithLightPacket.java b/net/minecraft/network/protocol/game/ClientboundLevelChunkWithLightPacket.java
index 8578d1f78ddd1bb75f3230f04bfaa35af9f5f822..d8e938abf5123b092cec80feb6468e3d91ae823e 100644
--- a/net/minecraft/network/protocol/game/ClientboundLevelChunkWithLightPacket.java
+++ b/net/minecraft/network/protocol/game/ClientboundLevelChunkWithLightPacket.java
@@ -44,6 +44,17 @@ public class ClientboundLevelChunkWithLightPacket implements Packet<ClientGamePa
this.lightData = new ClientboundLightUpdatePacketData(pos, lightEngine, skyLight, blockLight);
chunk.getLevel().chunkPacketBlockController.modifyBlocks(this, chunkPacketInfo); // Paper - Anti-Xray - Modify blocks
}
+ // Leaf start - Async chunk sending
+ public ClientboundLevelChunkWithLightPacket(LevelChunk chunk, LevelLightEngine lightEngine, @Nullable BitSet skyLight, @Nullable BitSet blockLight, boolean modifyBlocks, net.minecraft.world.level.block.entity.BlockEntity[] blockEntities, java.util.Map<net.minecraft.world.level.levelgen.Heightmap.Types, long[]> heightmaps) {
+ ChunkPos pos = chunk.getPos();
+ this.x = pos.x;
+ this.z = pos.z;
+ io.papermc.paper.antixray.ChunkPacketInfo<net.minecraft.world.level.block.state.BlockState> chunkPacketInfo = modifyBlocks ? chunk.getLevel().chunkPacketBlockController.getChunkPacketInfo(this, chunk) : null; // Paper - Ant-Xray
+ this.chunkData = new ClientboundLevelChunkPacketData(chunk, chunkPacketInfo, blockEntities, heightmaps); // Paper - Anti-Xray
+ this.lightData = new ClientboundLightUpdatePacketData(pos, lightEngine, skyLight, blockLight);
+ chunk.getLevel().chunkPacketBlockController.modifyBlocks(this, chunkPacketInfo); // Paper - Anti-Xray - Modify blocks
+ }
+ // Leaf end - Async chunk sending
private ClientboundLevelChunkWithLightPacket(RegistryFriendlyByteBuf buffer) {
this.x = buffer.readInt();
diff --git a/net/minecraft/server/network/PlayerChunkSender.java b/net/minecraft/server/network/PlayerChunkSender.java
index 14878690a88fd4de3e2c127086607e6c819c636c..62e1dabd84b80d5e2e4a8fcb308934dce2d8c74b 100644
--- a/net/minecraft/server/network/PlayerChunkSender.java
+++ b/net/minecraft/server/network/PlayerChunkSender.java
@@ -64,13 +64,29 @@ public class PlayerChunkSender {
if (!list.isEmpty()) {
ServerGamePacketListenerImpl serverGamePacketListenerImpl = player.connection;
this.unacknowledgedBatches++;
- serverGamePacketListenerImpl.send(ClientboundChunkBatchStartPacket.INSTANCE);
+ // Leaf start - Async chunk sending
+ if (org.dreeam.leaf.config.modules.async.AsyncChunkSend.enabled) {
+ org.dreeam.leaf.async.chunk.AsyncChunkSend.POOL.execute(
+ () -> serverGamePacketListenerImpl.send(ClientboundChunkBatchStartPacket.INSTANCE)
+ );
+ } else {
+ serverGamePacketListenerImpl.send(ClientboundChunkBatchStartPacket.INSTANCE);
+ }
+ // Leaf end - Async chunk sending
for (LevelChunk levelChunk : list) {
sendChunk(serverGamePacketListenerImpl, serverLevel, levelChunk);
}
- serverGamePacketListenerImpl.send(new ClientboundChunkBatchFinishedPacket(list.size()));
+ // Leaf start - Async chunk sending
+ if (org.dreeam.leaf.config.modules.async.AsyncChunkSend.enabled) {
+ org.dreeam.leaf.async.chunk.AsyncChunkSend.POOL.execute(
+ () -> serverGamePacketListenerImpl.send(new ClientboundChunkBatchFinishedPacket(list.size()))
+ );
+ } else {
+ serverGamePacketListenerImpl.send(new ClientboundChunkBatchFinishedPacket(list.size()));
+ }
+ // Leaf end - Async chunk sending
this.batchQuota = this.batchQuota - list.size();
}
}
@@ -81,7 +97,23 @@ public class PlayerChunkSender {
// Paper start - Anti-Xray
public static void sendChunk(ServerGamePacketListenerImpl packetListener, ServerLevel level, LevelChunk chunk) {
final boolean shouldModify = level.chunkPacketBlockController.shouldModify(packetListener.player, chunk);
- packetListener.send(new ClientboundLevelChunkWithLightPacket(chunk, level.getLightEngine(), null, null, shouldModify));
+ // Leaf start - Async chunk sending
+ if (org.dreeam.leaf.config.modules.async.AsyncChunkSend.enabled) {
+ var blockEntities = chunk.blockEntities.values().toArray(new net.minecraft.world.level.block.entity.BlockEntity[0]);
+ java.util.Map<net.minecraft.world.level.levelgen.Heightmap.Types, long[]> heightmaps = new java.util.concurrent.ConcurrentHashMap<>();
+
+ for (var entry : chunk.getHeightmaps()) {
+ if (entry.getKey().sendToClient()) {
+ heightmaps.put(entry.getKey(), entry.getValue().getRawData());
+ }
+ }
+ org.dreeam.leaf.async.chunk.AsyncChunkSend.POOL.execute(
+ () -> packetListener.send(new ClientboundLevelChunkWithLightPacket(chunk, level.getLightEngine(), null, null, shouldModify, blockEntities, heightmaps))
+ );
+ } else {
+ packetListener.send(new ClientboundLevelChunkWithLightPacket(chunk, level.getLightEngine(), null, null, shouldModify));
+ }
+ // Leaf end - Async chunk sending
// Paper end - Anti-Xray
// Paper start - PlayerChunkLoadEvent
if (io.papermc.paper.event.packet.PlayerChunkLoadEvent.getHandlerList().getRegisteredListeners().length > 0) {
diff --git a/net/minecraft/world/level/chunk/LevelChunkSection.java b/net/minecraft/world/level/chunk/LevelChunkSection.java
index 36c033b0ee63dfc273d721fb4b614733e8fdef19..4d06df242ab73411bdefc4770e131b27a6ea668a 100644
--- a/net/minecraft/world/level/chunk/LevelChunkSection.java
+++ b/net/minecraft/world/level/chunk/LevelChunkSection.java
@@ -18,7 +18,7 @@ public class LevelChunkSection implements ca.spottedleaf.moonrise.patches.block_
public static final int SECTION_HEIGHT = 16;
public static final int SECTION_SIZE = 4096;
public static final int BIOME_CONTAINER_BITS = 2;
- short nonEmptyBlockCount; // Paper - package private
+ volatile short nonEmptyBlockCount; // Paper - package private // Leaf - Async chunk sending - volatile
private short tickingBlockCount;
private short tickingFluidCount;
private boolean isRandomlyTickingBlocksStatus; // Leaf - Cache random tick block status
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