1 files changed, 83 insertions, 0 deletions
diff --git a/Ryujinx.HLE/OsHle/Services/Am/IStorageAccessor.cs b/Ryujinx.HLE/OsHle/Services/Am/IStorageAccessor.cs
new file mode 100644
index 00000000..c2a8c11e
--- /dev/null
+++ b/Ryujinx.HLE/OsHle/Services/Am/IStorageAccessor.cs
@@ -0,0 +1,83 @@
+using Ryujinx.HLE.OsHle.Ipc;
+using System;
+using System.Collections.Generic;
+
+namespace Ryujinx.HLE.OsHle.Services.Am
+{
+    class IStorageAccessor : IpcService
+    {
+        private Dictionary<int, ServiceProcessRequest> m_Commands;
+
+        public override IReadOnlyDictionary<int, ServiceProcessRequest> Commands => m_Commands;
+
+        private IStorage Storage;
+
+        public IStorageAccessor(IStorage Storage)
+        {
+            m_Commands = new Dictionary<int, ServiceProcessRequest>()
+            {
+                { 0,  GetSize },
+                { 10, Write   },
+                { 11, Read    }
+            };
+
+            this.Storage = Storage;
+        }
+
+        public long GetSize(ServiceCtx Context)
+        {
+            Context.ResponseData.Write((long)Storage.Data.Length);
+
+            return 0;
+        }
+
+        public long Write(ServiceCtx Context)
+        {
+            //TODO: Error conditions.
+            long WritePosition = Context.RequestData.ReadInt64();
+
+            (long Position, long Size) = Context.Request.GetBufferType0x21();
+
+            if (Size > 0)
+            {
+                long MaxSize = Storage.Data.Length - WritePosition;
+
+                if (Size > MaxSize)
+                {
+                    Size = MaxSize;
+                }
+
+                byte[] Data = Context.Memory.ReadBytes(Position, Size);
+
+                Buffer.BlockCopy(Data, 0, Storage.Data, (int)WritePosition, (int)Size);
+            }
+
+            return 0;
+        }
+
+        public long Read(ServiceCtx Context)
+        {
+            //TODO: Error conditions.
+            long ReadPosition = Context.RequestData.ReadInt64();
+
+            (long Position, long Size) = Context.Request.GetBufferType0x22();
+
+            byte[] Data;
+
+            if (Storage.Data.Length > Size)
+            {
+                Data = new byte[Size];
+
+                Buffer.BlockCopy(Storage.Data, 0, Data, 0, (int)Size);
+            }
+            else
+            {
+                Data = Storage.Data;
+            }
+
+            Context.Memory.WriteBytes(Position, Data);
+
+            return 0;
+        }
+    }
+}
+\ No newline at end of file