From 511f98ec184f066fb44f8053665221e8d6c3bccd Mon Sep 17 00:00:00 2001
From: MapleWheels <njainanan@hotmail.com>
Date: Mon, 9 Feb 2026 15:52:37 -0500
Subject: [PATCH] - Added pre-touch to the ContentPath.FullPath to make them
 thread-safe.

---
 .../ContentManagement/ContentPath.cs          |  7 +++--
 .../_Services/PackageManagementService.cs     | 29 +++++++++++++++++++
 2 files changed, 33 insertions(+), 3 deletions(-)

diff --git a/Barotrauma/BarotraumaShared/SharedSource/ContentManagement/ContentPath.cs b/Barotrauma/BarotraumaShared/SharedSource/ContentManagement/ContentPath.cs
index 0d9a4a112..2661aef1d 100644
--- a/Barotrauma/BarotraumaShared/SharedSource/ContentManagement/ContentPath.cs
+++ b/Barotrauma/BarotraumaShared/SharedSource/ContentManagement/ContentPath.cs
@@ -99,12 +99,13 @@ namespace Barotrauma
         public static ContentPath FromRaw(ContentPackage? contentPackage, string? rawValue)
         {
             var newRaw = new ContentPath(contentPackage, rawValue);
-            if (prevCreatedRaw is not null && prevCreatedRaw.ContentPackage == contentPackage &&
+            // Removed as this almost never happens but makes the constructor not thread-safe.
+            /*if (prevCreatedRaw is not null && prevCreatedRaw.ContentPackage == contentPackage &&
                 prevCreatedRaw.RawValue == rawValue)
             {
                 newRaw.cachedValue = prevCreatedRaw.Value;
             }
-            prevCreatedRaw = newRaw;
+            prevCreatedRaw = newRaw;*/
             return newRaw;
         }
         
@@ -158,4 +159,4 @@ namespace Barotrauma
         
         public override string? ToString() => Value;
     }
-}
\ No newline at end of file
+}
diff --git a/Barotrauma/BarotraumaShared/SharedSource/LuaCs/_Services/PackageManagementService.cs b/Barotrauma/BarotraumaShared/SharedSource/LuaCs/_Services/PackageManagementService.cs
index a51ee79b6..5483fab56 100644
--- a/Barotrauma/BarotraumaShared/SharedSource/LuaCs/_Services/PackageManagementService.cs
+++ b/Barotrauma/BarotraumaShared/SharedSource/LuaCs/_Services/PackageManagementService.cs
@@ -3,6 +3,7 @@ using System.Collections.Concurrent;
 using System.Collections.Generic;
 using System.Collections.Immutable;
 using System.Linq;
+using System.Runtime.CompilerServices;
 using System.Threading.Tasks;
 using Barotrauma.Extensions;
 using Barotrauma.LuaCs.Data;
@@ -138,7 +139,9 @@ public sealed class PackageManagementService : IPackageManagementService
         {
             result.WithReasons(pkgConfig.Config.Reasons);
             if (pkgConfig.Config.IsSuccess)
+            {
                 result.WithReasons(UnsafeAddPackageInternal(pkgConfig.Source, pkgConfig.Config.Value).Reasons);
+            }
         }
 
         return result;
@@ -152,6 +155,32 @@ public sealed class PackageManagementService : IPackageManagementService
             return FluentResults.Result.Ok();
         }
 
+        // We need to touch ContentPath.Fullpath once in a single-threaded context to make it thread-safe.
+        foreach (var info in config.Assemblies)
+        {
+            TouchMeFullPaths(info);
+        }
+        
+        foreach (var info in config.Configs)
+        {
+            TouchMeFullPaths(info);
+        }
+        
+        foreach (var info in config.LuaScripts)
+        {
+            TouchMeFullPaths(info);
+        }
+
+        // We need to touch ContentPath.Fullpath once in a single-threaded context to make it thread-safe.
+        [MethodImpl(MethodImplOptions.NoOptimization | MethodImplOptions.PreserveSig)]
+        void TouchMeFullPaths(IBaseResourceInfo info)
+        {
+            foreach (var contentPath in info.FilePaths)
+            {
+                var s = contentPath.FullPath;
+            }
+        }
+        
         _loadedPackages[package] = config;
         try
         {