PaperMC/patches/server/0769-Improve-inlining-for-some-hot-BlockBehavior-and-Flui.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

78 lines
3.5 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Mon, 6 Jul 2020 20:46:50 -0700
Subject: [PATCH] Improve inlining for some hot BlockBehavior and FluidState
methods
diff --git a/src/main/java/net/minecraft/world/level/block/state/BlockBehaviour.java b/src/main/java/net/minecraft/world/level/block/state/BlockBehaviour.java
index 83a3c877f2969549ea154ad86687e96fdf34d881..0665ca48fe2f8ab1ce1c0306b11be19b06445f74 100644
--- a/src/main/java/net/minecraft/world/level/block/state/BlockBehaviour.java
+++ b/src/main/java/net/minecraft/world/level/block/state/BlockBehaviour.java
@@ -969,15 +969,15 @@ public abstract class BlockBehaviour implements FeatureElement {
return this.shapeExceedsCube; // Paper - moved into shape cache init
}
- public boolean useShapeForLightOcclusion() {
+ public final boolean useShapeForLightOcclusion() { // Paper - Perf: Final for inlining
return this.useShapeForLightOcclusion;
}
- public int getLightEmission() {
+ public final int getLightEmission() { // Paper - Perf: Final for inlining
return this.lightEmission;
}
- public boolean isAir() {
+ public final boolean isAir() { // Paper - Perf: Final for inlining
return this.isAir;
}
@@ -1055,7 +1055,7 @@ public abstract class BlockBehaviour implements FeatureElement {
return this.solidRender;
}
- public boolean canOcclude() {
+ public final boolean canOcclude() { // Paper - Perf: Final for inlining
return this.canOcclude;
}
@@ -1276,11 +1276,11 @@ public abstract class BlockBehaviour implements FeatureElement {
return this.getBlock().builtInRegistryHolder().is(key);
}
- public FluidState getFluidState() {
+ public final FluidState getFluidState() { // Paper - Perf: Final for inlining
return this.fluidState;
}
- public boolean isRandomlyTicking() {
+ public final boolean isRandomlyTicking() { // Paper - Perf: Final for inlining
return this.isRandomlyTicking;
}
diff --git a/src/main/java/net/minecraft/world/level/material/FluidState.java b/src/main/java/net/minecraft/world/level/material/FluidState.java
index 8310cb22e2e75d8b2cca32bfe076fdafabb1b0ec..87adfe152abd1b8b4d547034576883c5d1cdf134 100644
--- a/src/main/java/net/minecraft/world/level/material/FluidState.java
+++ b/src/main/java/net/minecraft/world/level/material/FluidState.java
@@ -26,9 +26,11 @@ public final class FluidState extends StateHolder<Fluid, FluidState> {
public static final Codec<FluidState> CODEC = codec(BuiltInRegistries.FLUID.byNameCodec(), Fluid::defaultFluidState).stable();
public static final int AMOUNT_MAX = 9;
public static final int AMOUNT_FULL = 8;
+ protected final boolean isEmpty; // Paper - Perf: moved from isEmpty()
public FluidState(Fluid fluid, Reference2ObjectArrayMap<Property<?>, Comparable<?>> propertyMap, MapCodec<FluidState> codec) {
super(fluid, propertyMap, codec);
+ this.isEmpty = fluid.isEmpty(); // Paper - Perf: moved from isEmpty()
}
public Fluid getType() {
@@ -44,7 +46,7 @@ public final class FluidState extends StateHolder<Fluid, FluidState> {
}
public boolean isEmpty() {
- return this.getType().isEmpty();
+ return this.isEmpty; // Paper - Perf: moved into constructor
}
public float getHeight(BlockGetter world, BlockPos pos) {