From 5204ca0b68cf7d3ae99439c50b82f664c66c18f7 Mon Sep 17 00:00:00 2001
From: Cryptite <cryptite@gmail.com>
Date: Wed, 3 Jan 2024 11:02:43 -0600
Subject: [PATCH] Readd?

---
 patches/server/0042-Shared-Data-Storage.patch | 122 ++++++++++++++++++
 1 file changed, 122 insertions(+)
 create mode 100644 patches/server/0042-Shared-Data-Storage.patch

diff --git a/patches/server/0042-Shared-Data-Storage.patch b/patches/server/0042-Shared-Data-Storage.patch
new file mode 100644
index 000000000..dd38bc0d3
--- /dev/null
+++ b/patches/server/0042-Shared-Data-Storage.patch
@@ -0,0 +1,122 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Cryptite <cryptite@gmail.com>
+Date: Tue, 2 Jan 2024 14:28:00 -0600
+Subject: [PATCH] Shared Data Storage
+
+
+diff --git a/src/main/java/io/papermc/paper/configuration/GlobalConfiguration.java b/src/main/java/io/papermc/paper/configuration/GlobalConfiguration.java
+index a6f58b3457b7477015c5c6d969e7d83017dd3fa1..7f2070bd2d7eb7f0256a96df00103d20c45e65a0 100644
+--- a/src/main/java/io/papermc/paper/configuration/GlobalConfiguration.java
++++ b/src/main/java/io/papermc/paper/configuration/GlobalConfiguration.java
+@@ -331,6 +331,7 @@ public class GlobalConfiguration extends ConfigurationPart {
+         public boolean useDimensionTypeForCustomSpawners = false;
+         public boolean strictAdvancementDimensionCheck = false;
+         public IntOr.Default compressionLevel = IntOr.Default.USE_DEFAULT;
++        public String sharedDataFolder = ""; // Slice
+     }
+ 
+     public BlockUpdates blockUpdates;
+diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
+index 04c6357d24a095bcff40e267cd40920e3b3c3c5d..1c0b55cb77616811270c9b3ee1223184fe189832 100644
+--- a/src/main/java/net/minecraft/server/MinecraftServer.java
++++ b/src/main/java/net/minecraft/server/MinecraftServer.java
+@@ -2,6 +2,7 @@ package net.minecraft.server;
+ 
+ import com.google.common.base.Preconditions;
+ import com.google.common.base.Splitter;
++import com.google.common.base.Strings;
+ import com.google.common.collect.ImmutableList;
+ import co.aikar.timings.Timings;
+ import com.destroystokyo.paper.event.server.PaperServerListPingEvent;
+@@ -315,6 +316,8 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+     public static final long SERVER_INIT = System.nanoTime();
+     // Paper end - lag compensation
+ 
++    @Nullable DimensionDataStorage sharedDataStorage; // Slice
++
+     public static <S extends MinecraftServer> S spin(Function<Thread, S> serverFactory) {
+         AtomicReference<S> atomicreference = new AtomicReference();
+         Thread thread = new io.papermc.paper.util.TickThread(() -> { // Paper - rewrite chunk system
+@@ -416,6 +419,12 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+         this.paperConfigurations = services.paperConfigurations(); // Paper
+     }
+ 
++    // Slice start
++    public DimensionDataStorage getMapDataStorage() {
++        return sharedDataStorage != null ? sharedDataStorage : overworld().getDataStorage();
++    }
++    // Slice end
++
+     private void readScoreboard(DimensionDataStorage persistentStateManager) {
+         persistentStateManager.computeIfAbsent(this.getScoreboard().dataFactory(), "scoreboard");
+     }
+@@ -919,6 +928,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+             this.isSaving = true;
+             this.getPlayerList().saveAll(); // Diff on change
+             flag3 = this.saveAllChunks(suppressLogs, flush, force);
++            if (sharedDataStorage != null) sharedDataStorage.save(); // Slice
+         } finally {
+             this.isSaving = false;
+         }
+@@ -1133,6 +1143,15 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+                 throw new IllegalStateException("Failed to initialize server");
+             }
+ 
++            // Slice start
++            String sharedDataFolder = io.papermc.paper.configuration.GlobalConfiguration.get().misc.sharedDataFolder;
++            if (!Strings.isNullOrEmpty(sharedDataFolder)) {
++                File sharedDir = new File(sharedDataFolder);
++                sharedDir.mkdirs();
++                this.sharedDataStorage = new DimensionDataStorage(sharedDir, fixerUpper);
++            }
++            // Slice end
++
+             this.nextTickTimeNanos = Util.getNanos();
+             this.statusIcon = (ServerStatus.Favicon) this.loadStatusIcon().orElse(null); // CraftBukkit - decompile error
+             this.status = this.buildServerStatus();
+@@ -1539,6 +1558,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+                     level.saveIncrementally(fullSave);
+                 }
+             }
++            if (sharedDataStorage != null) sharedDataStorage.save(); // Slice
+         } finally {
+             this.isSaving = false;
+         }
+diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
+index ef2d88765dbcc36ca3a1f36101e389799241bcde..4493b34e457e47f6923c4febf8ddcf9c4f70d575 100644
+--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
++++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
+@@ -2136,7 +2136,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
+     @Override
+     public MapItemSavedData getMapData(String id) {
+         // Paper start - Call missing map initialize event & set id
+-        final DimensionDataStorage storage = this.getServer().overworld().getDataStorage();
++        final DimensionDataStorage storage = this.getServer().getMapDataStorage(); // Slice
+ 
+         final net.minecraft.world.level.saveddata.SavedData existing = storage.cache.get(id);
+         if (existing == null && !storage.cache.containsKey(id)) {
+@@ -2163,12 +2163,22 @@ public class ServerLevel extends Level implements WorldGenLevel {
+         MapInitializeEvent event = new MapInitializeEvent(state.mapView);
+         Bukkit.getServer().getPluginManager().callEvent(event);
+         // CraftBukkit end
+-        this.getServer().overworld().getDataStorage().set(id, state);
++        this.getServer().getMapDataStorage().set(id, state); // Slice
+     }
+ 
+     @Override
+     public int getFreeMapId() {
+-        return ((MapIndex) this.getServer().overworld().getDataStorage().computeIfAbsent(MapIndex.factory(), "idcounts")).getFreeAuxValueForMap();
++        // Slice start
++        DimensionDataStorage storage = this.getServer().getMapDataStorage();
++        MapIndex mapIndex = storage.readSavedData(MapIndex::load, MapItemSavedData.factory().type(), "idcounts");
++        if (mapIndex == null) {
++            mapIndex = new MapIndex();
++        }
++        int newId = mapIndex.getFreeAuxValueForMap();
++        storage.set("idcounts", mapIndex);
++        storage.save();
++        return newId;
++        // Slice end
+     }
+ 
+     // Paper start - helper function for configurable spawn radius