Paper/Spigot-Server-Patches/0495-Add-Plugin-Tickets-to-API-Chunk-Methods.patch
Shane Freeder 43e2f13b21 Updated Upstream (Bukkit/CraftBukkit)
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing
Actually rebuild patches this time...

Bukkit Changes:
19b7b7bd #561: Add clear weather World API
5929c808 #552: Add the ability to retrieve hit, step, fall, and other sounds from blocks.

CraftBukkit Changes:
e1ebdd92 #771: Add clear weather World API
424598d2 #752: Add the ability to retrieve hit, step, fall, and other sounds from blocks.
2020-11-25 23:49:06 +00:00

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6.8 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Tue, 9 Jun 2020 03:33:03 -0400
Subject: [PATCH] Add Plugin Tickets to API Chunk Methods
Like previous versions, plugins loading chunks kept them loaded until
they garbage collected to avoid constant spamming of chunk loads
This adds tickets to a few more places so that they can be unloaded.
Additionally, this drops their ticket level to BORDER so they wont be ticking
so they will just sit inactive instead.
Using .loadChunk to keep a chunk ticking was a horrible idea for upstream
when we have TWO methods that are able to do that already in the API.
Also reduce their collection count down to a maximum of 1 second. Barely
anyone knows what chunk-gc is in bukkit.yml as its less relevant now, and
since this wasn't spigot behavior, this is safe to mostly ignore (unless someone
wants it to collect even faster, they can restore that setting back to 1 instead of 20+)
Not adding it to .getType() though to keep behavior consistent with vanilla for performance reasons.
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
index 9319dccbe6a33001cfb27866fd1d078e73fcc1e7..f27d734a1d94ff749f1d28f2509f4a0dc0fdd181 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
@@ -347,7 +347,7 @@ public final class CraftServer implements Server {
ambientSpawn = configuration.getInt("spawn-limits.ambient");
console.autosavePeriod = configuration.getInt("ticks-per.autosave");
warningState = WarningState.value(configuration.getString("settings.deprecated-verbose"));
- TicketType.PLUGIN.loadPeriod = configuration.getInt("chunk-gc.period-in-ticks");
+ TicketType.PLUGIN.loadPeriod = Math.min(20, configuration.getInt("chunk-gc.period-in-ticks")); // Paper - cap plugin loads to 1 second
minimumAPI = configuration.getString("settings.minimum-api");
loadIcon();
}
@@ -830,7 +830,7 @@ public final class CraftServer implements Server {
waterAmbientSpawn = configuration.getInt("spawn-limits.water-ambient");
ambientSpawn = configuration.getInt("spawn-limits.ambient");
warningState = WarningState.value(configuration.getString("settings.deprecated-verbose"));
- TicketType.PLUGIN.loadPeriod = configuration.getInt("chunk-gc.period-in-ticks");
+ TicketType.PLUGIN.loadPeriod = Math.min(20, configuration.getInt("chunk-gc.period-in-ticks")); // Paper - cap plugin loads to 1 second
minimumAPI = configuration.getString("settings.minimum-api");
printSaveWarning = false;
console.autosavePeriod = configuration.getInt("ticks-per.autosave");
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
index 9cdef96fe912b14be02f10c9b16464d987085f76..24546615dcd9b4f5fa140137ff59d8efe9e3b52f 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
@@ -407,9 +407,22 @@ public class CraftWorld implements World {
@Override
public Chunk getChunkAt(int x, int z) {
- return this.world.getChunkProvider().getChunkAt(x, z, true).bukkitChunk;
+ // Paper start - add ticket to hold chunk for a little while longer if plugin accesses it
+ net.minecraft.server.Chunk chunk = world.getChunkProvider().getChunkAtIfLoadedImmediately(x, z);
+ if (chunk == null) {
+ addTicket(x, z);
+ chunk = this.world.getChunkProvider().getChunkAt(x, z, true);
+ }
+ return chunk.bukkitChunk;
+ // Paper end
}
+ // Paper start
+ private void addTicket(int x, int z) {
+ MCUtil.MAIN_EXECUTOR.execute(() -> world.getChunkProvider().addTicket(TicketType.PLUGIN, new ChunkCoordIntPair(x, z), 0, Unit.INSTANCE)); // Paper
+ }
+ // Paper end
+
@Override
public Chunk getChunkAt(Block block) {
Preconditions.checkArgument(block != null, "null block");
@@ -483,7 +496,7 @@ public class CraftWorld implements World {
public boolean unloadChunkRequest(int x, int z) {
org.spigotmc.AsyncCatcher.catchOp("chunk unload"); // Spigot
if (isChunkLoaded(x, z)) {
- world.getChunkProvider().removeTicket(TicketType.PLUGIN, new ChunkCoordIntPair(x, z), 1, Unit.INSTANCE);
+ world.getChunkProvider().removeTicket(TicketType.PLUGIN, new ChunkCoordIntPair(x, z), 0, Unit.INSTANCE); // Paper
}
return true;
@@ -560,10 +573,12 @@ public class CraftWorld implements World {
org.spigotmc.AsyncCatcher.catchOp("chunk load"); // Spigot
// Paper start - Optimize this method
ChunkCoordIntPair chunkPos = new ChunkCoordIntPair(x, z);
+ IChunkAccess immediate = world.getChunkProvider().getChunkAtIfLoadedImmediately(x, z); // Paper
+ if (immediate != null) return true; // Paper
if (!generate) {
- IChunkAccess immediate = world.getChunkProvider().getChunkAtImmediately(x, z);
+ //IChunkAccess immediate = world.getChunkProvider().getChunkAtImmediately(x, z); // Paper
if (immediate == null) {
immediate = world.getChunkProvider().playerChunkMap.getUnloadingChunk(x, z);
}
@@ -571,7 +586,7 @@ public class CraftWorld implements World {
if (!(immediate instanceof ProtoChunkExtension) && !(immediate instanceof net.minecraft.server.Chunk)) {
return false; // not full status
}
- world.getChunkProvider().addTicket(TicketType.PLUGIN, chunkPos, 1, Unit.INSTANCE);
+ world.getChunkProvider().addTicket(TicketType.PLUGIN, chunkPos, 0, Unit.INSTANCE); // Paper
world.getChunkAt(x, z); // make sure we're at ticket level 32 or lower
return true;
}
@@ -598,7 +613,7 @@ public class CraftWorld implements World {
// we do this so we do not re-read the chunk data on disk
}
- world.getChunkProvider().addTicket(TicketType.PLUGIN, chunkPos, 1, Unit.INSTANCE);
+ world.getChunkProvider().addTicket(TicketType.PLUGIN, chunkPos, 0, Unit.INSTANCE); // Paper
world.getChunkProvider().getChunkAt(x, z, ChunkStatus.FULL, true);
return true;
// Paper end
@@ -2531,6 +2546,7 @@ public class CraftWorld implements World {
}
return this.world.getChunkProvider().getChunkAtAsynchronously(x, z, gen, urgent).thenComposeAsync((either) -> {
net.minecraft.server.Chunk chunk = (net.minecraft.server.Chunk) either.left().orElse(null);
+ if (chunk != null) addTicket(x, z); // Paper
return CompletableFuture.completedFuture(chunk == null ? null : chunk.getBukkitChunk());
}, MinecraftServer.getServer());
}