1 files changed, 135 insertions, 0 deletions
diff --git a/src/Ryujinx.Horizon/Arp/Ipc/Reader.cs b/src/Ryujinx.Horizon/Arp/Ipc/Reader.cs
new file mode 100644
index 00000000..de99c2ad
--- /dev/null
+++ b/src/Ryujinx.Horizon/Arp/Ipc/Reader.cs
@@ -0,0 +1,135 @@
+using Ryujinx.Horizon.Common;
+using Ryujinx.Horizon.Sdk.Arp;
+using Ryujinx.Horizon.Sdk.Arp.Detail;
+using Ryujinx.Horizon.Sdk.Ns;
+using Ryujinx.Horizon.Sdk.Sf;
+using Ryujinx.Horizon.Sdk.Sf.Hipc;
+using System;
+
+namespace Ryujinx.Horizon.Arp.Ipc
+{
+    partial class Reader : IReader, IServiceObject
+    {
+        private readonly ApplicationInstanceManager _applicationInstanceManager;
+
+        public Reader(ApplicationInstanceManager applicationInstanceManager)
+        {
+            _applicationInstanceManager = applicationInstanceManager;
+        }
+
+        [CmifCommand(0)]
+        public Result GetApplicationLaunchProperty(out ApplicationLaunchProperty applicationLaunchProperty, ulong applicationInstanceId)
+        {
+            if (_applicationInstanceManager.Entries[applicationInstanceId] == null || !_applicationInstanceManager.Entries[applicationInstanceId].LaunchProperty.HasValue)
+            {
+                applicationLaunchProperty = default;
+
+                return ArpResult.InvalidInstanceId;
+            }
+
+            applicationLaunchProperty = _applicationInstanceManager.Entries[applicationInstanceId].LaunchProperty.Value;
+
+            return Result.Success;
+        }
+
+        [CmifCommand(1)]
+        public Result GetApplicationControlProperty([Buffer(HipcBufferFlags.Out | HipcBufferFlags.MapAlias, 0x4000)] out ApplicationControlProperty applicationControlProperty, ulong applicationInstanceId)
+        {
+            if (_applicationInstanceManager.Entries[applicationInstanceId] == null || !_applicationInstanceManager.Entries[applicationInstanceId].ControlProperty.HasValue)
+            {
+                applicationControlProperty = default;
+
+                return ArpResult.InvalidInstanceId;
+            }
+
+            applicationControlProperty = _applicationInstanceManager.Entries[applicationInstanceId].ControlProperty.Value;
+
+            return Result.Success;
+        }
+
+        [CmifCommand(2)]
+        public Result GetApplicationProcessProperty(out ApplicationProcessProperty applicationProcessProperty, ulong applicationInstanceId)
+        {
+            if (_applicationInstanceManager.Entries[applicationInstanceId] == null || !_applicationInstanceManager.Entries[applicationInstanceId].ProcessProperty.HasValue)
+            {
+                applicationProcessProperty = default;
+
+                return ArpResult.InvalidInstanceId;
+            }
+
+            applicationProcessProperty = _applicationInstanceManager.Entries[applicationInstanceId].ProcessProperty.Value;
+
+            return Result.Success;
+        }
+
+        [CmifCommand(3)]
+        public Result GetApplicationInstanceId(out ulong applicationInstanceId, ulong pid)
+        {
+            applicationInstanceId = 0;
+
+            if (pid == 0)
+            {
+                return ArpResult.InvalidPid;
+            }
+
+            for (int i = 0; i < _applicationInstanceManager.Entries.Length; i++)
+            {
+                if (_applicationInstanceManager.Entries[i] != null && _applicationInstanceManager.Entries[i].Pid == pid)
+                {
+                    applicationInstanceId = (ulong)i;
+
+                    return Result.Success;
+                }
+            }
+
+            return ArpResult.InvalidPid;
+        }
+
+        [CmifCommand(4)]
+        public Result GetApplicationInstanceUnregistrationNotifier(out IUnregistrationNotifier unregistrationNotifier)
+        {
+            unregistrationNotifier = new UnregistrationNotifier(_applicationInstanceManager);
+
+            return Result.Success;
+        }
+
+        [CmifCommand(5)]
+        public Result ListApplicationInstanceId(out int count, [Buffer(HipcBufferFlags.Out | HipcBufferFlags.MapAlias)] Span<ulong> applicationInstanceIdList)
+        {
+            count = 0;
+
+            if (_applicationInstanceManager.Entries[0] != null)
+            {
+                applicationInstanceIdList[count++] = 0;
+            }
+
+            if (_applicationInstanceManager.Entries[1] != null)
+            {
+                applicationInstanceIdList[count++] = 1;
+            }
+
+            return Result.Success;
+        }
+
+        [CmifCommand(6)]
+        public Result GetMicroApplicationInstanceId(out ulong microApplicationInstanceId, [ClientProcessId] ulong pid)
+        {
+            return GetApplicationInstanceId(out microApplicationInstanceId, pid);
+        }
+
+        [CmifCommand(7)]
+        public Result GetApplicationCertificate([Buffer(HipcBufferFlags.Out | HipcBufferFlags.MapAlias | HipcBufferFlags.FixedSize, 0x528)] out ApplicationCertificate applicationCertificate, ulong applicationInstanceId)
+        {
+            if (_applicationInstanceManager.Entries[applicationInstanceId] == null)
+            {
+                applicationCertificate = default;
+
+                return ArpResult.InvalidInstanceId;
+            }
+
+            applicationCertificate = _applicationInstanceManager.Entries[applicationInstanceId].Certificate.Value;
+
+            return Result.Success;
+        }
+    }
+}