From a1d72deba2cb22006af5e286cc3bb23203ec727f Mon Sep 17 00:00:00 2001
From: JPVenson <github@jpb.email>
Date: Wed, 4 Jun 2025 00:15:22 +0300
Subject: Add multiple options for internal locking (#14047)

---
 .../Extensions/ServiceCollectionExtensions.cs           | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'Jellyfin.Server.Implementations/Extensions/ServiceCollectionExtensions.cs')

diff --git a/Jellyfin.Server.Implementations/Extensions/ServiceCollectionExtensions.cs b/Jellyfin.Server.Implementations/Extensions/ServiceCollectionExtensions.cs
index fbbb5bca7..392a8de2c 100644
--- a/Jellyfin.Server.Implementations/Extensions/ServiceCollectionExtensions.cs
+++ b/Jellyfin.Server.Implementations/Extensions/ServiceCollectionExtensions.cs
@@ -3,6 +3,7 @@ using System.Collections.Generic;
 using System.Reflection;
 using Jellyfin.Database.Implementations;
 using Jellyfin.Database.Implementations.DbConfiguration;
+using Jellyfin.Database.Implementations.Locking;
 using Jellyfin.Database.Providers.Sqlite;
 using MediaBrowser.Common.Configuration;
 using MediaBrowser.Controller.Configuration;
@@ -73,6 +74,7 @@ public static class ServiceCollectionExtensions
                 efCoreConfiguration = new DatabaseConfigurationOptions()
                 {
                     DatabaseType = "Jellyfin-SQLite",
+                    LockingBehavior = DatabaseLockingBehaviorTypes.NoLock
                 };
                 configurationManager.SaveConfiguration("database", efCoreConfiguration);
             }
@@ -85,10 +87,25 @@ public static class ServiceCollectionExtensions
 
         serviceCollection.AddSingleton<IJellyfinDatabaseProvider>(providerFactory!);
 
+        switch (efCoreConfiguration.LockingBehavior)
+        {
+            case DatabaseLockingBehaviorTypes.NoLock:
+                serviceCollection.AddSingleton<IEntityFrameworkCoreLockingBehavior, NoLockBehavior>();
+                break;
+            case DatabaseLockingBehaviorTypes.Pessimistic:
+                serviceCollection.AddSingleton<IEntityFrameworkCoreLockingBehavior, PessimisticLockBehavior>();
+                break;
+            case DatabaseLockingBehaviorTypes.Optimistic:
+                serviceCollection.AddSingleton<IEntityFrameworkCoreLockingBehavior, OptimisticLockBehavior>();
+                break;
+        }
+
         serviceCollection.AddPooledDbContextFactory<JellyfinDbContext>((serviceProvider, opt) =>
         {
             var provider = serviceProvider.GetRequiredService<IJellyfinDatabaseProvider>();
             provider.Initialise(opt);
+            var lockingBehavior = serviceProvider.GetRequiredService<IEntityFrameworkCoreLockingBehavior>();
+            lockingBehavior.Initialise(opt);
         });
 
         return serviceCollection;
-- 
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