PaperMC/patches/server/0273-Async-command-map-building.patch
Nassim Jahnke 64828f3a60
Clean up thread pool usage (#11681)
Using an unbound LinkedBlockingQueue means you *have* to set core and max core thread pool size the same, as they will never go above the minimum pool size by just passing them through. So this fixes the async command executor pool to actually use 2 threads, and also cleans up other usage to be explicitly "fixed" thread pool sizes, and splits off one more in Minecraft's Util class
2024-11-29 17:07:35 +01:00

61 lines
3.4 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Callahan <mr.callahhh@gmail.com>
Date: Wed, 8 Apr 2020 02:42:14 -0500
Subject: [PATCH] Async command map building
This adds a custom pool inorder to make sure that they are closed
without much though, as it doesn't matter if the client is not sent
commands if the server is restarting. Using the default async pool caused issues to arise
due to the shutdown logic generally being much later.
diff --git a/src/main/java/net/minecraft/commands/Commands.java b/src/main/java/net/minecraft/commands/Commands.java
index 2008fd542eaf1c2fac776ae1751c227a3b6dde4b..34564f4118eab9e95176cb4ff4bc93fbe97d9b6b 100644
--- a/src/main/java/net/minecraft/commands/Commands.java
+++ b/src/main/java/net/minecraft/commands/Commands.java
@@ -455,6 +455,19 @@ public class Commands {
if ( org.spigotmc.SpigotConfig.tabComplete < 0 ) return; // Spigot
// CraftBukkit start
// Register Vanilla commands into builtRoot as before
+ // Paper start - Perf: Async command map building
+ COMMAND_SENDING_POOL.execute(() -> this.sendAsync(player));
+ }
+
+ public static final java.util.concurrent.ExecutorService COMMAND_SENDING_POOL = java.util.concurrent.Executors.newFixedThreadPool(2,
+ new com.google.common.util.concurrent.ThreadFactoryBuilder()
+ .setNameFormat("Paper Async Command Builder Thread Pool - %1$d")
+ .setUncaughtExceptionHandler(new net.minecraft.DefaultUncaughtExceptionHandlerWithName(net.minecraft.server.MinecraftServer.LOGGER))
+ .build()
+ );
+
+ private void sendAsync(ServerPlayer player) {
+ // Paper end - Perf: Async command map building
Map<CommandNode<CommandSourceStack>, CommandNode<SharedSuggestionProvider>> map = Maps.newIdentityHashMap(); // Use identity to prevent aliasing issues
RootCommandNode vanillaRoot = new RootCommandNode();
@@ -472,7 +485,14 @@ public class Commands {
for (CommandNode node : rootcommandnode.getChildren()) {
bukkit.add(node.getName());
}
+ // Paper start - Perf: Async command map building
+ net.minecraft.server.MinecraftServer.getServer().execute(() -> {
+ runSync(player, bukkit, rootcommandnode);
+ });
+ }
+ private void runSync(ServerPlayer player, Collection<String> bukkit, RootCommandNode<SharedSuggestionProvider> rootcommandnode) {
+ // Paper end - Perf: Async command map building
PlayerCommandSendEvent event = new PlayerCommandSendEvent(player.getBukkitEntity(), new LinkedHashSet<>(bukkit));
event.getPlayer().getServer().getPluginManager().callEvent(event);
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index 9a9291282f7ec99be9badf8b32fab5f0ea0f1037..feb45369b41b597fd603c12f3da23759923b6a6d 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -944,6 +944,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
}
MinecraftServer.LOGGER.info("Stopping server");
+ Commands.COMMAND_SENDING_POOL.shutdownNow(); // Paper - Perf: Async command map building; Shutdown and don't bother finishing
// CraftBukkit start
if (this.server != null) {
this.server.disablePlugins();