From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: NONPLAYT <76615486+NONPLAYT@users.noreply.github.com>
Date: Mon, 24 Feb 2025 19:29:58 +0300
Subject: [PATCH] Virtual Threads


diff --git a/net/minecraft/Util.java b/net/minecraft/Util.java
index 138a58c5e5698b926b01e0170733dc3dbc5589ec..bfe52d5a93a35cafcb8965482b1c1d6c398255e4 100644
--- a/net/minecraft/Util.java
+++ b/net/minecraft/Util.java
@@ -98,7 +98,12 @@ public class Util {
     public static final TracingExecutor DIMENSION_DATA_IO_POOL = makeExtraIoExecutor("Dimension-Data-IO-Worker-"); // Paper - Separate dimension data IO pool
     private static final TracingExecutor DOWNLOAD_POOL = makeIoExecutor("Download-", true);
     // Paper start - don't submit BLOCKING PROFILE LOOKUPS to the world gen thread
-    public static final ExecutorService PROFILE_EXECUTOR = Executors.newFixedThreadPool(2, new java.util.concurrent.ThreadFactory() {
+    // DivineMC start - Virtual Threads
+    public static final ExecutorService PROFILE_EXECUTOR = org.bxteam.divinemc.config.DivineConfig.PerformanceCategory.virtualThreadsEnabled && org.bxteam.divinemc.config.DivineConfig.PerformanceCategory.virtualProfileLookupPool
+        ? Executors.newVirtualThreadPerTaskExecutor()
+        : Executors.newFixedThreadPool(2, new java.util.concurrent.ThreadFactory()
+    {
+    // DivineMC end - Virtual Threads
 
         private final AtomicInteger count = new AtomicInteger();
 
diff --git a/net/minecraft/commands/Commands.java b/net/minecraft/commands/Commands.java
index 758ce439d2e10e6ef42a58d147a77093667e0acd..de622982f864d96a5b76efcd69f1836ef541317b 100644
--- a/net/minecraft/commands/Commands.java
+++ b/net/minecraft/commands/Commands.java
@@ -481,7 +481,7 @@ public class Commands {
     }
 
     // Fixed pool, but with discard policy
-    public static final java.util.concurrent.ExecutorService COMMAND_SENDING_POOL = new java.util.concurrent.ThreadPoolExecutor(
+    public static final java.util.concurrent.ExecutorService COMMAND_SENDING_POOL = org.bxteam.divinemc.config.DivineConfig.PerformanceCategory.virtualThreadsEnabled && org.bxteam.divinemc.config.DivineConfig.PerformanceCategory.virtualCommandBuilderScheduler ? java.util.concurrent.Executors.newVirtualThreadPerTaskExecutor() : new java.util.concurrent.ThreadPoolExecutor( // DivineMC - Virtual Threads
         2, 2, 0, java.util.concurrent.TimeUnit.MILLISECONDS,
         new java.util.concurrent.LinkedBlockingQueue<>(),
         new com.google.common.util.concurrent.ThreadFactoryBuilder()
diff --git a/net/minecraft/server/MinecraftServer.java b/net/minecraft/server/MinecraftServer.java
index 2a03d85b15377f5c5286a6fea5b592b9ff76b791..1877ee1431b0f858b6a5da7347d72fe90374e27a 100644
--- a/net/minecraft/server/MinecraftServer.java
+++ b/net/minecraft/server/MinecraftServer.java
@@ -2644,8 +2644,11 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
         }
     }
 
-    public final java.util.concurrent.ExecutorService chatExecutor = java.util.concurrent.Executors.newCachedThreadPool(
-        new com.google.common.util.concurrent.ThreadFactoryBuilder().setDaemon(true).setNameFormat("Async Chat Thread - #%d").setUncaughtExceptionHandler(new net.minecraft.DefaultUncaughtExceptionHandlerWithName(net.minecraft.server.MinecraftServer.LOGGER)).build()); // Paper
+    // DivineMC start - Virtual Threads
+    public final java.util.concurrent.ExecutorService chatExecutor = org.bxteam.divinemc.config.DivineConfig.PerformanceCategory.virtualThreadsEnabled && org.bxteam.divinemc.config.DivineConfig.PerformanceCategory.virtualChatScheduler
+        ? java.util.concurrent.Executors.newVirtualThreadPerTaskExecutor()
+        : java.util.concurrent.Executors.newCachedThreadPool(new com.google.common.util.concurrent.ThreadFactoryBuilder().setDaemon(true).setNameFormat("Async Chat Thread - #%d").setUncaughtExceptionHandler(new net.minecraft.DefaultUncaughtExceptionHandlerWithName(net.minecraft.server.MinecraftServer.LOGGER)).build()); // Paper
+    // DivineMC end - Virtual Threads
     public final ChatDecorator improvedChatDecorator = new io.papermc.paper.adventure.ImprovedChatDecorator(this); // Paper - adventure
 
     public ChatDecorator getChatDecorator() {
diff --git a/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index b58fc16f9054f36d5ddb2dffabd9274969e56897..2d3200834e46a24156659a32170aa4974caf8060 100644
--- a/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -838,8 +838,11 @@ public class ServerGamePacketListenerImpl
     }
 
     // Paper start - AsyncTabCompleteEvent
-    private static final java.util.concurrent.ExecutorService TAB_COMPLETE_EXECUTOR = java.util.concurrent.Executors.newFixedThreadPool(4,
-        new com.google.common.util.concurrent.ThreadFactoryBuilder().setDaemon(true).setNameFormat("Async Tab Complete Thread - #%d").setUncaughtExceptionHandler(new net.minecraft.DefaultUncaughtExceptionHandlerWithName(MinecraftServer.LOGGER)).build());
+    // DivineMC start - Virtual Threads
+    private static final java.util.concurrent.ExecutorService TAB_COMPLETE_EXECUTOR = org.bxteam.divinemc.config.DivineConfig.PerformanceCategory.virtualThreadsEnabled && org.bxteam.divinemc.config.DivineConfig.PerformanceCategory.virtualTabCompleteScheduler
+        ? java.util.concurrent.Executors.newVirtualThreadPerTaskExecutor()
+        : java.util.concurrent.Executors.newFixedThreadPool(4, new com.google.common.util.concurrent.ThreadFactoryBuilder().setDaemon(true).setNameFormat("Async Tab Complete Thread - #%d").setUncaughtExceptionHandler(new net.minecraft.DefaultUncaughtExceptionHandlerWithName(MinecraftServer.LOGGER)).build());
+    // DivineMC end - Virtual Threads
     // Paper end - AsyncTabCompleteEvent
 
     @Override
diff --git a/net/minecraft/server/network/ServerTextFilter.java b/net/minecraft/server/network/ServerTextFilter.java
index b3d46e7687c572d9847124eb58e4a6011a78066c..9d2e2b1cff68383cd19b42e24559e3009ef1df54 100644
--- a/net/minecraft/server/network/ServerTextFilter.java
+++ b/net/minecraft/server/network/ServerTextFilter.java
@@ -48,7 +48,11 @@ public abstract class ServerTextFilter implements AutoCloseable {
     final ExecutorService workerPool;
 
     protected static ExecutorService createWorkerPool(int size) {
-        return Executors.newFixedThreadPool(size, THREAD_FACTORY);
+        // DivineMC start - Virtual Threads
+        return org.bxteam.divinemc.config.DivineConfig.PerformanceCategory.virtualThreadsEnabled && org.bxteam.divinemc.config.DivineConfig.PerformanceCategory.virtualServerTextFilterPool
+            ? Executors.newVirtualThreadPerTaskExecutor()
+            : Executors.newFixedThreadPool(size, THREAD_FACTORY);
+        // DivineMC end - Virtual Threads
     }
 
     protected ServerTextFilter(