From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jason Penilla <11360596+jpenilla@users.noreply.github.com>
Date: Sun, 27 Oct 2024 14:18:28 -0700
Subject: [PATCH] Avoid issues with certain tasks not processing during sleep

Execute processQueue tasks during sleep: needed for console tab completions, pre join event, etc.

Upstream has set precedent that the bukkit scheduler will still tick during sleep, which avoids some problems
with plugins not accounting for the new sleep feature, but can still lead to others. Because of this we have disabled
sleep by default, which avoids the problem and makes it more obvious to check if this is the cause of issues when
enabled. We also unload chunks during sleep to prevent memory leaks caused by plugin chunk loads.

diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index 11a0bf52d891d79e3520de91d270b876871510f7..317bb0bd16d8125a40c37b75be1d4d0461bcf9ce 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -1638,6 +1638,16 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
                 }
 
                 this.server.getScheduler().mainThreadHeartbeat(); // CraftBukkit
+                // Paper start - avoid issues with certain tasks not processing during sleep
+                Runnable task;
+                while ((task = this.processQueue.poll()) != null) {
+                    task.run();
+                }
+                for (final ServerLevel level : this.levels.values()) {
+                    // process unloads
+                    level.getChunkSource().tick(() -> true, false);
+                }
+                // Paper end - avoid issues with certain tasks not processing during sleep
                 this.server.spark.executeMainThreadTasks(); // Paper - spark
                 this.tickConnection();
                 this.server.spark.tickEnd(((double)(System.nanoTime() - lastTick) / 1000000D)); // Paper - spark
diff --git a/src/main/java/net/minecraft/server/dedicated/DedicatedServerProperties.java b/src/main/java/net/minecraft/server/dedicated/DedicatedServerProperties.java
index a2633780619d73c29a23cb8b6a208ca9ba549fb0..c3ec370b83b895be0f03662e3884fa4a2442a2a6 100644
--- a/src/main/java/net/minecraft/server/dedicated/DedicatedServerProperties.java
+++ b/src/main/java/net/minecraft/server/dedicated/DedicatedServerProperties.java
@@ -160,7 +160,7 @@ public class DedicatedServerProperties extends Settings<DedicatedServerPropertie
         this.whiteList = this.getMutable("white-list", false);
         this.enforceSecureProfile = this.get("enforce-secure-profile", true);
         this.logIPs = this.get("log-ips", true);
-        this.pauseWhenEmptySeconds = this.get("pause-when-empty-seconds", 60);
+        this.pauseWhenEmptySeconds = this.get("pause-when-empty-seconds", -1); // Paper - disable tick sleeping by default
         this.acceptsTransfers = this.get("accepts-transfers", false);
         String s = this.get("level-seed", "");
         boolean flag = this.get("generate-structures", true);