Paper/Spigot-Server-Patches/0344-Optimize-getChunkIfLoaded-type-calls.patch
Shane Freeder abba3d113b
Updated Upstream (Bukkit/CraftBukkit/Spigot)
Upstream has released updates that appears 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:
bb813f6f SPIGOT-4605: Warn against hacking physics

CraftBukkit Changes:
2ced0233 Don't handle sync packets for kicked players
d5e96882 SPIGOT-4602: Cache reflection in decompile error workaround

Spigot Changes:
b0f4c22b SPIGOT-4605: Catch more physics problems
2019-02-03 15:34:04 +00:00

82 lines
4.4 KiB
Diff

From 054e75a8aa2efaf8de0b9bd367a3186e38a9a1e1 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Wed, 29 Aug 2018 21:59:22 -0400
Subject: [PATCH] Optimize getChunkIfLoaded type calls
Uses optimized check to avoid major locks and large method.
Will improve inlining across many hot methods.
Improve getBrightness to not do double chunk map lookups.
diff --git a/src/main/java/net/minecraft/server/ChunkProviderServer.java b/src/main/java/net/minecraft/server/ChunkProviderServer.java
index 41926a361..186cfda7e 100644
--- a/src/main/java/net/minecraft/server/ChunkProviderServer.java
+++ b/src/main/java/net/minecraft/server/ChunkProviderServer.java
@@ -379,7 +379,7 @@ public class ChunkProviderServer implements IChunkProvider {
continue;
}
- Chunk neighbor = this.getChunkAt(chunk.locX + x, chunk.locZ + z, false, false);
+ Chunk neighbor = this.chunks.get(chunk.chunkKey); // Paper
if (neighbor != null) {
neighbor.setNeighborUnloaded(-x, -z);
chunk.setNeighborUnloaded(x, z);
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index 5c5b3ef28..c89a0f7da 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -162,7 +162,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
}
public Chunk getChunkIfLoaded(int x, int z) {
- return ((ChunkProviderServer) this.chunkProvider).getChunkAt(x, z, false, false);
+ return ((ChunkProviderServer) this.chunkProvider).chunks.get(ChunkCoordIntPair.a(x, z)); // Paper - optimize getChunkIfLoaded
}
protected World(IDataManager idatamanager, @Nullable PersistentCollection persistentcollection, WorldData worlddata, WorldProvider worldprovider, MethodProfiler methodprofiler, boolean flag, ChunkGenerator gen, org.bukkit.World.Environment env) {
@@ -724,7 +724,8 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
blockposition = new BlockPosition(blockposition.getX(), 0, blockposition.getZ());
}
- return !blockposition.isValidLocation() ? enumskyblock.c : (!this.isLoaded(blockposition) ? enumskyblock.c : this.getChunkAtWorldCoords(blockposition).getBrightness(enumskyblock, blockposition)); // Paper
+ Chunk chunk; // Paper
+ return !blockposition.isValidLocation() ? enumskyblock.c : ((chunk = this.getChunkIfLoaded(blockposition)) == null ? enumskyblock.c : chunk.getBrightness(enumskyblock, blockposition)); // Paper - optimize ifChunkLoaded
}
public void a(EnumSkyBlock enumskyblock, BlockPosition blockposition, int i) {
@@ -1967,7 +1968,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
if (blockposition.isInvalidYLocation()) { // Paper
return false;
} else {
- Chunk chunk = this.chunkProvider.getChunkAt(blockposition.getX() >> 4, blockposition.getZ() >> 4, false, false);
+ Chunk chunk = this.getChunkIfLoaded(blockposition.getX() >> 4, blockposition.getZ() >> 4); // Paper - optimize ifLoaded
return chunk != null && !chunk.isEmpty();
}
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
index e0b466d0c..2c4465fff 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
@@ -218,7 +218,7 @@ public class CraftWorld implements World {
return false;
}
- net.minecraft.server.Chunk chunk = world.getChunkProvider().getChunkAt(x, z, false, false);
+ net.minecraft.server.Chunk chunk = world.getChunkIfLoaded(x, z); // Paper - optimize ifLaoded
if (chunk != null) {
world.getChunkProvider().unload(chunk);
}
@@ -237,7 +237,7 @@ public class CraftWorld implements World {
private boolean unloadChunk0(int x, int z, boolean save) {
Boolean result = MCUtil.ensureMain("Unload Chunk", () -> { // Paper - Ensure never async
- net.minecraft.server.Chunk chunk = world.getChunkProvider().getChunkAt(x, z, false, false);
+ net.minecraft.server.Chunk chunk = world.getChunkIfLoaded(x, z); // Paper - optimize ifLoaded
if (chunk == null) {
return true;
}
--
2.20.1