Paper/patches/server/0305-Async-command-map-building.patch

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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
diff --git a/src/main/java/net/minecraft/commands/Commands.java b/src/main/java/net/minecraft/commands/Commands.java
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index cc2337ee8a00fab8919a61324899113370bc5018..b28dc3f176221a6d6efb35af11b54777299b9242 100644
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--- a/src/main/java/net/minecraft/commands/Commands.java
+++ b/src/main/java/net/minecraft/commands/Commands.java
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@@ -30,6 +30,7 @@ import net.minecraft.network.chat.MutableComponent;
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import net.minecraft.network.chat.TextComponent;
import net.minecraft.network.chat.TranslatableComponent;
import net.minecraft.network.protocol.game.ClientboundCommandsPacket;
+import net.minecraft.server.MinecraftServer;
import net.minecraft.server.commands.AdvancementCommands;
import net.minecraft.server.commands.AttributeCommand;
import net.minecraft.server.commands.BanIpCommands;
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@@ -344,6 +345,14 @@ public class Commands {
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if ( org.spigotmc.SpigotConfig.tabComplete < 0 ) return; // Spigot
// CraftBukkit start
// Register Vanilla commands into builtRoot as before
+ // Paper start - Async command map building
+ java.util.concurrent.ForkJoinPool.commonPool().execute(() -> {
+ sendAsync(player);
+ });
+ }
+
+ private void sendAsync(ServerPlayer player) {
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+ // Paper end - Async command map building
Map<CommandNode<CommandSourceStack>, CommandNode<SharedSuggestionProvider>> map = Maps.newIdentityHashMap(); // Use identity to prevent aliasing issues
RootCommandNode vanillaRoot = new RootCommandNode();
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@@ -361,7 +370,14 @@ public class Commands {
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for (CommandNode node : rootcommandnode.getChildren()) {
bukkit.add(node.getName());
}
+ // Paper start - Async command map building
+ MinecraftServer.getServer().execute(() -> {
+ runSync(player, bukkit, rootcommandnode);
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+ });
+ }
+ private void runSync(ServerPlayer player, Collection<String> bukkit, RootCommandNode<SharedSuggestionProvider> rootcommandnode) {
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+ // Paper end - Async command map building
PlayerCommandSendEvent event = new PlayerCommandSendEvent(player.getBukkitEntity(), new LinkedHashSet<>(bukkit));
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event.getPlayer().getServer().getPluginManager().callEvent(event);