Paper/patches/server/0414-Optimise-getType-calls.patch
Spottedleaf 8c5b837e05 Rework async chunk api implementation
Firstly, the old methods all routed to the CompletableFuture method.
However, the CF method could not guarantee that if the caller
was off-main that the future would be "completed" on-main. Since
the callback methods used the CF one, this meant that the callback
methods did not guarantee that the callbacks were to be called on
the main thread.

Now, all methods route to getChunkAtAsync(x, z, gen, urgent, cb)
so that the methods with the callback are guaranteed to invoke
the callback on the main thread. The CF behavior remains unchanged;
it may still appear to complete on main if invoked off-main.

Secondly, remove the scheduleOnMain invocation in the async
chunk completion. This unnecessarily delays the callback
by 1 tick.

Thirdly, add getChunksAtAsync(minX, minZ, maxX, maxZ, ...) which
will load chunks within an area. This method is provided as a helper
as keeping all chunks loaded within an area can be complicated to
implement for plugins (due to the lacking ticket API), and is
already implemented internally anyways.

Fourthly, remove the ticket addition that occured with getChunkAt
and getChunkAtAsync. The ticket addition may delay the unloading
of the chunk unnecessarily. It also fixes a very rare timing bug
where the future/callback would be completed after the chunk
unloads.
2024-11-18 23:00:59 -08:00

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5.2 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Wed, 3 Jun 2020 11:37:13 -0700
Subject: [PATCH] Optimise getType calls
Remove the map lookup for converting from Block->Bukkit Material
diff --git a/src/main/java/net/minecraft/world/level/block/state/BlockState.java b/src/main/java/net/minecraft/world/level/block/state/BlockState.java
index 065d140ca4f987e14138a37f4c7d60879dd7b6e1..601135f3368272bf1ca3a43ec9c199e3ee838462 100644
--- a/src/main/java/net/minecraft/world/level/block/state/BlockState.java
+++ b/src/main/java/net/minecraft/world/level/block/state/BlockState.java
@@ -10,6 +10,16 @@ import net.minecraft.world.level.block.state.properties.Property;
public class BlockState extends BlockBehaviour.BlockStateBase {
public static final Codec<BlockState> CODEC = codec(BuiltInRegistries.BLOCK.byNameCodec(), Block::defaultBlockState).stable();
+ // Paper start - optimise getType calls
+ org.bukkit.Material cachedMaterial;
+
+ public final org.bukkit.Material getBukkitMaterial() {
+ if (this.cachedMaterial == null) {
+ this.cachedMaterial = org.bukkit.craftbukkit.block.CraftBlockType.minecraftToBukkit(this.getBlock());
+ }
+ return this.cachedMaterial;
+ }
+ // Paper end - optimise getType calls
public BlockState(Block block, Reference2ObjectArrayMap<Property<?>, Comparable<?>> propertyMap, MapCodec<BlockState> codec) {
super(block, propertyMap, codec);
}
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftChunkSnapshot.java b/src/main/java/org/bukkit/craftbukkit/CraftChunkSnapshot.java
index a845ebd6262e05a1395c9a503480319e4b4a65ce..c88e4ba701b2a2325b76478b7f47278157afd2ef 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftChunkSnapshot.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftChunkSnapshot.java
@@ -100,7 +100,7 @@ public class CraftChunkSnapshot implements ChunkSnapshot {
public Material getBlockType(int x, int y, int z) {
this.validateChunkCoordinates(x, y, z);
- return CraftBlockType.minecraftToBukkit(this.blockids[this.getSectionIndex(y)].get(x, y & 0xF, z).getBlock());
+ return this.blockids[this.getSectionIndex(y)].get(x, y & 0xF, z).getBukkitMaterial(); // Paper - optimise getType calls
}
@Override
diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java b/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java
index 3fa3de9a89550ec2fcb8ca663742826c0c3136b6..5f4dcf6d86db66186dc31075bdb739f5dbae6480 100644
--- a/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java
+++ b/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java
@@ -220,7 +220,7 @@ public class CraftBlock implements Block {
@Override
public Material getType() {
- return CraftBlockType.minecraftToBukkit(this.world.getBlockState(this.position).getBlock());
+ return this.world.getBlockState(this.position).getBukkitMaterial(); // Paper - optimise getType calls
}
@Override
diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockState.java b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockState.java
index fabdec2d66cc6d676ed58fa570e2c318ab0927e2..1002123cd0c6f57cecc4e80f5f21cc6ff5886d37 100644
--- a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockState.java
+++ b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockState.java
@@ -175,7 +175,7 @@ public class CraftBlockState implements BlockState {
@Override
public Material getType() {
- return CraftBlockType.minecraftToBukkit(this.data.getBlock());
+ return this.data.getBukkitMaterial(); // Paper - optimise getType calls
}
public void setFlag(int flag) {
diff --git a/src/main/java/org/bukkit/craftbukkit/block/data/CraftBlockData.java b/src/main/java/org/bukkit/craftbukkit/block/data/CraftBlockData.java
index f73858663162cb594db382d584b6500bb03e74b1..7f0d87bd43a54885fc521068116888083327f37e 100644
--- a/src/main/java/org/bukkit/craftbukkit/block/data/CraftBlockData.java
+++ b/src/main/java/org/bukkit/craftbukkit/block/data/CraftBlockData.java
@@ -63,7 +63,7 @@ public class CraftBlockData implements BlockData {
@Override
public Material getMaterial() {
- return CraftBlockType.minecraftToBukkit(this.state.getBlock());
+ return this.state.getBukkitMaterial(); // Paper - optimise getType calls
}
public net.minecraft.world.level.block.state.BlockState getState() {
diff --git a/src/main/java/org/bukkit/craftbukkit/generator/CraftChunkData.java b/src/main/java/org/bukkit/craftbukkit/generator/CraftChunkData.java
index c96aaa185d9d929cb19f427be82053f0cfa13bad..0fb580530d0b6d4d63ea4b85fec9240eb5c74df4 100644
--- a/src/main/java/org/bukkit/craftbukkit/generator/CraftChunkData.java
+++ b/src/main/java/org/bukkit/craftbukkit/generator/CraftChunkData.java
@@ -96,7 +96,7 @@ public final class CraftChunkData implements ChunkGenerator.ChunkData {
@Override
public Material getType(int x, int y, int z) {
- return CraftBlockType.minecraftToBukkit(this.getTypeId(x, y, z).getBlock());
+ return this.getTypeId(x, y, z).getBukkitMaterial(); // Paper - optimise getType calls
}
@Override