IPC refactor part 2: Use ReplyAndReceive on HLE services and remove special handling from kernel (#1458)

* IPC refactor part 2: Use ReplyAndReceive on HLE services and remove special handling from kernel

* Fix for applet transfer memory + some nits

* Keep handles if possible to avoid server handle table exhaustion

* Fix IPC ZeroFill bug

* am: Correctly implement CreateManagedDisplayLayer and implement CreateManagedDisplaySeparableLayer

CreateManagedDisplaySeparableLayer is requires since 10.x+ when appletResourceUserId != 0

* Make it exit properly

* Make ServiceNotImplementedException show the full message again

* Allow yielding execution to avoid starving other threads

* Only wait if active

* Merge IVirtualMemoryManager and IAddressSpaceManager

* Fix Ro loading data from the wrong process

Co-authored-by: Thog <me@thog.eu>

5 files changed, 74 insertions, 21 deletions

diff --git a/Ryujinx.HLE/HOS/Services/Am/AppletAE/AllSystemAppletProxiesService/SystemAppletProxy/ICommonStateGetter.cs b/Ryujinx.HLE/HOS/Services/Am/AppletAE/AllSystemAppletProxiesService/SystemAppletProxy/ICommonStateGetter.cs
index 62319d47..e3b73c29 100644
--- a/Ryujinx.HLE/HOS/Services/Am/AppletAE/AllSystemAppletProxiesService/SystemAppletProxy/ICommonStateGetter.cs
+++ b/Ryujinx.HLE/HOS/Services/Am/AppletAE/AllSystemAppletProxiesService/SystemAppletProxy/ICommonStateGetter.cs
@@ -12,7 +12,9 @@ namespace Ryujinx.HLE.HOS.Services.Am.AppletAE.AllSystemAppletProxiesService.Sys
         private Apm.SystemManagerServer _apmSystemManagerServer;
         private Lbl.LblControllerServer _lblControllerServer;
 
-        private bool _vrModeEnabled = false;
+        private bool _vrModeEnabled;
+        private int _messageEventHandle;
+        private int _displayResolutionChangedEventHandle;
 
         public ICommonStateGetter(ServiceCtx context)
         {
@@ -25,14 +27,17 @@ namespace Ryujinx.HLE.HOS.Services.Am.AppletAE.AllSystemAppletProxiesService.Sys
         // GetEventHandle() -> handle<copy>
         public ResultCode GetEventHandle(ServiceCtx context)
         {
-            KEvent Event = context.Device.System.AppletState.MessageEvent;
+            KEvent messageEvent = context.Device.System.AppletState.MessageEvent;
 
-            if (context.Process.HandleTable.GenerateHandle(Event.ReadableEvent, out int handle) != KernelResult.Success)
+            if (_messageEventHandle == 0)
             {
-                throw new InvalidOperationException("Out of handles!");
+                if (context.Process.HandleTable.GenerateHandle(messageEvent.ReadableEvent, out _messageEventHandle) != KernelResult.Success)
+                {
+                    throw new InvalidOperationException("Out of handles!");
+                }
             }
 
-            context.Response.HandleDesc = IpcHandleDesc.MakeCopy(handle);
+            context.Response.HandleDesc = IpcHandleDesc.MakeCopy(_messageEventHandle);
 
             return ResultCode.Success;
         }
@@ -147,7 +152,7 @@ namespace Ryujinx.HLE.HOS.Services.Am.AppletAE.AllSystemAppletProxiesService.Sys
                 _lblControllerServer.DisableVrMode();
             }
 
-            // TODO: It signals an internal event of ICommonStateGetter. We have to determine where this event is used. 
+            // TODO: It signals an internal event of ICommonStateGetter. We have to determine where this event is used.
         }
 
         [Command(60)] // 3.0.0+
@@ -164,12 +169,15 @@ namespace Ryujinx.HLE.HOS.Services.Am.AppletAE.AllSystemAppletProxiesService.Sys
         // GetDefaultDisplayResolutionChangeEvent() -> handle<copy>
         public ResultCode GetDefaultDisplayResolutionChangeEvent(ServiceCtx context)
         {
-            if (context.Process.HandleTable.GenerateHandle(context.Device.System.DisplayResolutionChangeEvent.ReadableEvent, out int handle) != KernelResult.Success)
+            if (_displayResolutionChangedEventHandle == 0)
             {
-                throw new InvalidOperationException("Out of handles!");
+                if (context.Process.HandleTable.GenerateHandle(context.Device.System.DisplayResolutionChangeEvent.ReadableEvent, out _displayResolutionChangedEventHandle) != KernelResult.Success)
+                {
+                    throw new InvalidOperationException("Out of handles!");
+                }
             }
 
-            context.Response.HandleDesc = IpcHandleDesc.MakeCopy(handle);
+            context.Response.HandleDesc = IpcHandleDesc.MakeCopy(_displayResolutionChangedEventHandle);
 
             Logger.Stub?.PrintStub(LogClass.ServiceAm);
 
@@ -189,7 +197,7 @@ namespace Ryujinx.HLE.HOS.Services.Am.AppletAE.AllSystemAppletProxiesService.Sys
 
             _apmSystemManagerServer.SetCpuBoostMode((Apm.CpuBoostMode)cpuBoostMode);
 
-            // TODO: It signals an internal event of ICommonStateGetter. We have to determine where this event is used. 
+            // TODO: It signals an internal event of ICommonStateGetter. We have to determine where this event is used.
 
             return ResultCode.Success;
         }
diff --git a/Ryujinx.HLE/HOS/Services/Am/AppletAE/AllSystemAppletProxiesService/SystemAppletProxy/IHomeMenuFunctions.cs b/Ryujinx.HLE/HOS/Services/Am/AppletAE/AllSystemAppletProxiesService/SystemAppletProxy/IHomeMenuFunctions.cs
index 5fafa154..580574a8 100644
--- a/Ryujinx.HLE/HOS/Services/Am/AppletAE/AllSystemAppletProxiesService/SystemAppletProxy/IHomeMenuFunctions.cs
+++ b/Ryujinx.HLE/HOS/Services/Am/AppletAE/AllSystemAppletProxiesService/SystemAppletProxy/IHomeMenuFunctions.cs
@@ -9,6 +9,7 @@ namespace Ryujinx.HLE.HOS.Services.Am.AppletAE.AllSystemAppletProxiesService.Sys
     class IHomeMenuFunctions : IpcService
     {
         private KEvent _channelEvent;
+        private int    _channelEventHandle;
 
         public IHomeMenuFunctions(Horizon system)
         {
@@ -29,12 +30,15 @@ namespace Ryujinx.HLE.HOS.Services.Am.AppletAE.AllSystemAppletProxiesService.Sys
         // GetPopFromGeneralChannelEvent() -> handle<copy>
         public ResultCode GetPopFromGeneralChannelEvent(ServiceCtx context)
         {
-            if (context.Process.HandleTable.GenerateHandle(_channelEvent.ReadableEvent, out int handle) != KernelResult.Success)
+            if (_channelEventHandle == 0)
             {
-                throw new InvalidOperationException("Out of handles!");
+                if (context.Process.HandleTable.GenerateHandle(_channelEvent.ReadableEvent, out _channelEventHandle) != KernelResult.Success)
+                {
+                    throw new InvalidOperationException("Out of handles!");
+                }
             }
 
-            context.Response.HandleDesc = IpcHandleDesc.MakeCopy(handle);
+            context.Response.HandleDesc = IpcHandleDesc.MakeCopy(_channelEventHandle);
 
             Logger.Stub?.PrintStub(LogClass.ServiceAm);
 
diff --git a/Ryujinx.HLE/HOS/Services/Am/AppletAE/AllSystemAppletProxiesService/SystemAppletProxy/ILibraryAppletCreator.cs b/Ryujinx.HLE/HOS/Services/Am/AppletAE/AllSystemAppletProxiesService/SystemAppletProxy/ILibraryAppletCreator.cs
index decf5470..5b91e235 100644
--- a/Ryujinx.HLE/HOS/Services/Am/AppletAE/AllSystemAppletProxiesService/SystemAppletProxy/ILibraryAppletCreator.cs
+++ b/Ryujinx.HLE/HOS/Services/Am/AppletAE/AllSystemAppletProxiesService/SystemAppletProxy/ILibraryAppletCreator.cs
@@ -49,7 +49,9 @@ namespace Ryujinx.HLE.HOS.Services.Am.AppletAE.AllSystemAppletProxiesService.Sys
             }
 
             var data = new byte[transferMem.Size];
-            context.Memory.Read(transferMem.Address, data);
+            transferMem.Creator.CpuMemory.Read(transferMem.Address, data);
+
+            context.Device.System.KernelContext.Syscall.CloseHandle(handle);
 
             MakeObject(context, new IStorage(data));
 
diff --git a/Ryujinx.HLE/HOS/Services/Am/AppletAE/AllSystemAppletProxiesService/SystemAppletProxy/ISelfController.cs b/Ryujinx.HLE/HOS/Services/Am/AppletAE/AllSystemAppletProxiesService/SystemAppletProxy/ISelfController.cs
index 8b1275ac..b2cc7160 100644
--- a/Ryujinx.HLE/HOS/Services/Am/AppletAE/AllSystemAppletProxiesService/SystemAppletProxy/ISelfController.cs
+++ b/Ryujinx.HLE/HOS/Services/Am/AppletAE/AllSystemAppletProxiesService/SystemAppletProxy/ISelfController.cs
@@ -8,10 +8,13 @@ namespace Ryujinx.HLE.HOS.Services.Am.AppletAE.AllSystemAppletProxiesService.Sys
 {
     class ISelfController : IpcService
     {
+        private readonly long _pid;
+
         private KEvent _libraryAppletLaunchableEvent;
+        private int    _libraryAppletLaunchableEventHandle;
 
         private KEvent _accumulatedSuspendedTickChangedEvent;
-        private int    _accumulatedSuspendedTickChangedEventHandle = 0;
+        private int    _accumulatedSuspendedTickChangedEventHandle;
 
         private object _fatalSectionLock = new object();
         private int    _fatalSectionCount;
@@ -32,9 +35,10 @@ namespace Ryujinx.HLE.HOS.Services.Am.AppletAE.AllSystemAppletProxiesService.Sys
         private uint _screenShotImageOrientation = 0;
         private uint _idleTimeDetectionExtension = 0;
 
-        public ISelfController(Horizon system)
+        public ISelfController(Horizon system, long pid)
         {
             _libraryAppletLaunchableEvent = new KEvent(system.KernelContext);
+            _pid = pid;
         }
 
         [Command(0)]
@@ -103,12 +107,15 @@ namespace Ryujinx.HLE.HOS.Services.Am.AppletAE.AllSystemAppletProxiesService.Sys
         {
             _libraryAppletLaunchableEvent.ReadableEvent.Signal();
 
-            if (context.Process.HandleTable.GenerateHandle(_libraryAppletLaunchableEvent.ReadableEvent, out int handle) != KernelResult.Success)
+            if (_libraryAppletLaunchableEventHandle == 0)
             {
-                throw new InvalidOperationException("Out of handles!");
+                if (context.Process.HandleTable.GenerateHandle(_libraryAppletLaunchableEvent.ReadableEvent, out _libraryAppletLaunchableEventHandle) != KernelResult.Success)
+                {
+                    throw new InvalidOperationException("Out of handles!");
+                }
             }
 
-            context.Response.HandleDesc = IpcHandleDesc.MakeCopy(handle);
+            context.Response.HandleDesc = IpcHandleDesc.MakeCopy(_libraryAppletLaunchableEventHandle);
 
             Logger.Stub?.PrintStub(LogClass.ServiceAm);
 
@@ -206,6 +213,31 @@ namespace Ryujinx.HLE.HOS.Services.Am.AppletAE.AllSystemAppletProxiesService.Sys
             return ResultCode.Success;
         }
 
+        [Command(40)]
+        // CreateManagedDisplayLayer() -> u64
+        public ResultCode CreateManagedDisplayLayer(ServiceCtx context)
+        {
+            context.Device.System.SurfaceFlinger.CreateLayer(_pid, out long layerId);
+
+            context.ResponseData.Write(layerId);
+
+            return ResultCode.Success;
+        }
+
+        [Command(44)] // 10.0.0+
+        // CreateManagedDisplaySeparableLayer() -> (u64, u64)
+        public ResultCode CreateManagedDisplaySeparableLayer(ServiceCtx context)
+        {
+            // NOTE: first create the recoding layer and then the display one because right now Surface Flinger only use the last id.
+            context.Device.System.SurfaceFlinger.CreateLayer(_pid, out long recordingLayerId);
+            context.Device.System.SurfaceFlinger.CreateLayer(_pid, out long displayLayerId);
+
+            context.ResponseData.Write(displayLayerId);
+            context.ResponseData.Write(recordingLayerId);
+
+            return ResultCode.Success;
+        }
+
         [Command(50)]
         // SetHandlesRequestToDisplay(b8)
         public ResultCode SetHandlesRequestToDisplay(ServiceCtx context)
diff --git a/Ryujinx.HLE/HOS/Services/Am/AppletAE/AllSystemAppletProxiesService/SystemAppletProxy/IWindowController.cs b/Ryujinx.HLE/HOS/Services/Am/AppletAE/AllSystemAppletProxiesService/SystemAppletProxy/IWindowController.cs
index 5c5c9b88..8c127b98 100644
--- a/Ryujinx.HLE/HOS/Services/Am/AppletAE/AllSystemAppletProxiesService/SystemAppletProxy/IWindowController.cs
+++ b/Ryujinx.HLE/HOS/Services/Am/AppletAE/AllSystemAppletProxiesService/SystemAppletProxy/IWindowController.cs
@@ -4,7 +4,12 @@ namespace Ryujinx.HLE.HOS.Services.Am.AppletAE.AllSystemAppletProxiesService.Sys
 {
     class IWindowController : IpcService
     {
-        public IWindowController() { }
+        private readonly long _pid;
+
+        public IWindowController(long pid)
+        {
+            _pid = pid;
+        }
 
         [Command(1)]
         // GetAppletResourceUserId() -> nn::applet::AppletResourceUserId
@@ -12,7 +17,9 @@ namespace Ryujinx.HLE.HOS.Services.Am.AppletAE.AllSystemAppletProxiesService.Sys
         {
             Logger.Stub?.PrintStub(LogClass.ServiceAm);
 
-            context.ResponseData.Write(0L);
+            long appletResourceUserId = context.Device.System.AppletState.AppletResourceUserIds.Add(_pid);
+
+            context.ResponseData.Write(appletResourceUserId);
 
             return ResultCode.Success;
         }