1 files changed, 95 insertions, 0 deletions
diff --git a/src/Ryujinx.HLE/HOS/Services/Fs/FileSystemProxy/IFile.cs b/src/Ryujinx.HLE/HOS/Services/Fs/FileSystemProxy/IFile.cs
new file mode 100644
index 00000000..4bc58ae5
--- /dev/null
+++ b/src/Ryujinx.HLE/HOS/Services/Fs/FileSystemProxy/IFile.cs
@@ -0,0 +1,95 @@
+using LibHac;
+using LibHac.Common;
+using LibHac.Fs;
+using LibHac.Sf;
+using Ryujinx.Common;
+
+namespace Ryujinx.HLE.HOS.Services.Fs.FileSystemProxy
+{
+    class IFile : DisposableIpcService
+    {
+        private SharedRef<LibHac.FsSrv.Sf.IFile> _baseFile;
+
+        public IFile(ref SharedRef<LibHac.FsSrv.Sf.IFile> baseFile)
+        {
+            _baseFile = SharedRef<LibHac.FsSrv.Sf.IFile>.CreateMove(ref baseFile);
+        }
+
+        [CommandCmif(0)]
+        // Read(u32 readOption, u64 offset, u64 size) -> (u64 out_size, buffer<u8, 0x46, 0> out_buf)
+        public ResultCode Read(ServiceCtx context)
+        {
+            ulong bufferAddress = context.Request.ReceiveBuff[0].Position;
+            ulong bufferLen = context.Request.ReceiveBuff[0].Size;
+
+            ReadOption readOption = context.RequestData.ReadStruct<ReadOption>();
+            context.RequestData.BaseStream.Position += 4;
+
+            long offset = context.RequestData.ReadInt64();
+            long size   = context.RequestData.ReadInt64();
+
+            using (var region = context.Memory.GetWritableRegion(bufferAddress, (int)bufferLen, true))
+            {
+                Result result = _baseFile.Get.Read(out long bytesRead, offset, new OutBuffer(region.Memory.Span), size, readOption);
+
+                context.ResponseData.Write(bytesRead);
+
+                return (ResultCode)result.Value;
+            }
+        }
+
+        [CommandCmif(1)]
+        // Write(u32 writeOption, u64 offset, u64 size, buffer<u8, 0x45, 0>)
+        public ResultCode Write(ServiceCtx context)
+        {
+            ulong position = context.Request.SendBuff[0].Position;
+
+            WriteOption writeOption = context.RequestData.ReadStruct<WriteOption>();
+            context.RequestData.BaseStream.Position += 4;
+
+            long offset = context.RequestData.ReadInt64();
+            long size   = context.RequestData.ReadInt64();
+
+            byte[] data = new byte[context.Request.SendBuff[0].Size];
+
+            context.Memory.Read(position, data);
+
+            return (ResultCode)_baseFile.Get.Write(offset, new InBuffer(data), size, writeOption).Value;
+        }
+
+        [CommandCmif(2)]
+        // Flush()
+        public ResultCode Flush(ServiceCtx context)
+        {
+            return (ResultCode)_baseFile.Get.Flush().Value;
+        }
+
+        [CommandCmif(3)]
+        // SetSize(u64 size)
+        public ResultCode SetSize(ServiceCtx context)
+        {
+            long size = context.RequestData.ReadInt64();
+
+            return (ResultCode)_baseFile.Get.SetSize(size).Value;
+        }
+
+        [CommandCmif(4)]
+        // GetSize() -> u64 fileSize
+        public ResultCode GetSize(ServiceCtx context)
+        {
+            Result result = _baseFile.Get.GetSize(out long size);
+
+            context.ResponseData.Write(size);
+
+            return (ResultCode)result.Value;
+        }
+
+        protected override void Dispose(bool isDisposing)
+        {
+            if (isDisposing)
+            {
+                _baseFile.Destroy();
+            }
+        }
+    }
+}
+\ No newline at end of file