From 6541ad07264828dca3aa15e33ee5b7046e67386a Mon Sep 17 00:00:00 2001
From: Coxxs <58-coxxs@users.noreply.git.ryujinx.app>
Date: Mon, 20 Oct 2025 19:14:42 -0500
Subject: [PATCH] Implement IUserServiceCreator: 1 (CreateClientProcessMonitor)
 (ryubing/ryujinx!181)

See merge request ryubing/ryujinx!181
---
 .../HOS/Services/Ldn/IUserServiceCreator.cs   |  9 +++++++++
 .../IClientProcessMonitor.cs                  | 20 +++++++++++++++++++
 2 files changed, 29 insertions(+)
 create mode 100644 src/Ryujinx.HLE/HOS/Services/Ldn/UserServiceCreator/IClientProcessMonitor.cs

diff --git a/src/Ryujinx.HLE/HOS/Services/Ldn/IUserServiceCreator.cs b/src/Ryujinx.HLE/HOS/Services/Ldn/IUserServiceCreator.cs
index 633d5f739..3e3a226ae 100644
--- a/src/Ryujinx.HLE/HOS/Services/Ldn/IUserServiceCreator.cs
+++ b/src/Ryujinx.HLE/HOS/Services/Ldn/IUserServiceCreator.cs
@@ -15,5 +15,14 @@ namespace Ryujinx.HLE.HOS.Services.Ldn
 
             return ResultCode.Success;
         }
+
+        [CommandCmif(1)] // 18.0.0+
+        // CreateClientProcessMonitor() -> object<nn::ldn::detail::IClientProcessMonitor>
+        public ResultCode CreateClientProcessMonitor(ServiceCtx context)
+        {
+            MakeObject(context, new IClientProcessMonitor(context));
+
+            return ResultCode.Success;
+        }
     }
 }
diff --git a/src/Ryujinx.HLE/HOS/Services/Ldn/UserServiceCreator/IClientProcessMonitor.cs b/src/Ryujinx.HLE/HOS/Services/Ldn/UserServiceCreator/IClientProcessMonitor.cs
new file mode 100644
index 000000000..349d51a3f
--- /dev/null
+++ b/src/Ryujinx.HLE/HOS/Services/Ldn/UserServiceCreator/IClientProcessMonitor.cs
@@ -0,0 +1,20 @@
+using Ryujinx.Common.Logging;
+
+namespace Ryujinx.HLE.HOS.Services.Ldn.UserServiceCreator
+{
+    class IClientProcessMonitor : DisposableIpcService
+    {
+        public IClientProcessMonitor(ServiceCtx context) { }
+
+        [CommandCmif(0)] // 18.0.0+
+        // RegisterClient(u64 pid_placeholder, pid)
+        public ResultCode RegisterClient(ServiceCtx context)
+        {
+            Logger.Stub?.PrintStub(LogClass.ServiceLdn);
+
+            return ResultCode.Success;
+        }
+
+        protected override void Dispose(bool isDisposing) { }
+    }
+}