From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: NONPLAYT <76615486+NONPLAYT@users.noreply.github.com>
Date: Mon, 24 Feb 2025 19:36:33 +0300
Subject: [PATCH] Virtual Threads


diff --git a/src/main/java/io/papermc/paper/util/MCUtil.java b/src/main/java/io/papermc/paper/util/MCUtil.java
index e3138cd673789328514da91bd07484172cd8ae4d..982b9f3b7e546b7e8a0aad883e9a29bb772ddc81 100644
--- a/src/main/java/io/papermc/paper/util/MCUtil.java
+++ b/src/main/java/io/papermc/paper/util/MCUtil.java
@@ -38,7 +38,7 @@ public final class MCUtil {
             run.run();
         }
     };
-    public static final ExecutorService ASYNC_EXECUTOR = Executors.newFixedThreadPool(2, new ThreadFactoryBuilder()
+    public static final ExecutorService ASYNC_EXECUTOR = org.bxteam.divinemc.config.DivineConfig.PerformanceCategory.virtualThreadsEnabled && org.bxteam.divinemc.config.DivineConfig.PerformanceCategory.virtualAsyncExecutor ? Executors.newVirtualThreadPerTaskExecutor() : Executors.newFixedThreadPool(2, new ThreadFactoryBuilder() // DivineMC - Virtual Threads
         .setNameFormat("Paper Async Task Handler Thread - %1$d")
         .setUncaughtExceptionHandler(new net.minecraft.DefaultUncaughtExceptionHandlerWithName(MinecraftServer.LOGGER))
         .build()
diff --git a/src/main/java/org/bukkit/craftbukkit/scheduler/CraftAsyncScheduler.java b/src/main/java/org/bukkit/craftbukkit/scheduler/CraftAsyncScheduler.java
index 27562fd66ae9d091837cab74057706c8a6b6521c..69fad4fcfa7f3692dedeb8e76402b6de39d82560 100644
--- a/src/main/java/org/bukkit/craftbukkit/scheduler/CraftAsyncScheduler.java
+++ b/src/main/java/org/bukkit/craftbukkit/scheduler/CraftAsyncScheduler.java
@@ -31,14 +31,18 @@ import java.util.ArrayList;
 import java.util.Iterator;
 import java.util.List;
 import java.util.concurrent.Executor;
+import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 import java.util.concurrent.SynchronousQueue;
 import java.util.concurrent.ThreadPoolExecutor;
 import java.util.concurrent.TimeUnit;
 
 public class CraftAsyncScheduler extends CraftScheduler {
-
-    private final ThreadPoolExecutor executor = new ThreadPoolExecutor(
+    // DivineMC start - Virtual Threads
+    private final ExecutorService executor = org.bxteam.divinemc.config.DivineConfig.PerformanceCategory.virtualThreadsEnabled && org.bxteam.divinemc.config.DivineConfig.PerformanceCategory.virtualBukkitScheduler
+        ? Executors.newVirtualThreadPerTaskExecutor()
+        : new ThreadPoolExecutor(
+    // DivineMC end - Virtual Threads
             4, Integer.MAX_VALUE, 30L, TimeUnit.SECONDS, new SynchronousQueue<>(),
             new ThreadFactoryBuilder().setNameFormat("Craft Scheduler Thread - %1$d").build());
     private final Executor management = Executors.newSingleThreadExecutor(new ThreadFactoryBuilder()
@@ -47,8 +51,12 @@ public class CraftAsyncScheduler extends CraftScheduler {
 
     CraftAsyncScheduler() {
         super(true);
-        executor.allowCoreThreadTimeOut(true);
-        executor.prestartAllCoreThreads();
+        // DivineMC start - Virtual Threads
+        if (!org.bxteam.divinemc.config.DivineConfig.PerformanceCategory.virtualThreadsEnabled && !org.bxteam.divinemc.config.DivineConfig.PerformanceCategory.virtualBukkitScheduler) {
+            ((ThreadPoolExecutor) executor).allowCoreThreadTimeOut(true);
+            ((ThreadPoolExecutor) executor).prestartAllCoreThreads();
+        }
+        // DivineMC end - Virtual Threads
     }
 
     @Override