Prepare for 1.19 dev

patches/server/Correctly-handle-recursion-for-chunkholder-updates.patch

@@ -1,37 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Spottedleaf <Spottedleaf@users.noreply.github.com>
-Date: Sun, 21 Mar 2021 17:32:47 -0700
-Subject: [PATCH] Correctly handle recursion for chunkholder updates
-
-If a chunk ticket level is brought up while unloading it would
-cause a recursive call which would handle the increase but then
-the caller would think the chunk would be unloaded.
-
-diff --git a/src/main/java/net/minecraft/server/level/ChunkHolder.java b/src/main/java/net/minecraft/server/level/ChunkHolder.java
-index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
---- a/src/main/java/net/minecraft/server/level/ChunkHolder.java
-+++ b/src/main/java/net/minecraft/server/level/ChunkHolder.java
-@@ -0,0 +0,0 @@ public class ChunkHolder {
-         playerchunkmap.onFullChunkStatusChange(this.pos, playerchunk_state);
-     }
- 
-+    protected long updateCount; // Paper - correctly handle recursion
-     protected void updateFutures(ChunkMap chunkStorage, Executor executor) {
-         io.papermc.paper.util.TickThread.ensureTickThread("Async ticket level update"); // Paper
-+        long updateCount = ++this.updateCount; // Paper - correctly handle recursion
-         ChunkStatus chunkstatus = ChunkHolder.getStatus(this.oldTicketLevel);
-         ChunkStatus chunkstatus1 = ChunkHolder.getStatus(this.ticketLevel);
-         boolean flag = this.oldTicketLevel <= ChunkMap.MAX_CHUNK_DISTANCE;
-@@ -0,0 +0,0 @@ public class ChunkHolder {
- 
-             // Run callback right away if the future was already done
-             chunkStorage.callbackExecutor.run();
-+            // Paper start - correctly handle recursion
-+            if (this.updateCount != updateCount) {
-+                // something else updated ticket level for us.
-+                return;
-+            }
-+            // Paper end - correctly handle recursion
-         }
-         // CraftBukkit end
-