Move solution and projects to src

src/Ryujinx.Horizon/Sdk/ServiceUtil.cs

@@ -0,0 +1,39 @@
+using Ryujinx.Horizon.Common;
+using Ryujinx.Horizon.Sdk.Sf.Cmif;
+using Ryujinx.Horizon.Sdk.Sf.Hipc;
+using System;
+
+namespace Ryujinx.Horizon.Sdk
+{
+    static class ServiceUtil
+    {
+        public static Result SendRequest(out CmifResponse response, int sessionHandle, uint requestId, bool sendPid, scoped ReadOnlySpan<byte> data)
+        {
+            ulong tlsAddress = HorizonStatic.ThreadContext.TlsAddress;
+            int   tlsSize    = Api.TlsMessageBufferSize;
+
+            using (var tlsRegion = HorizonStatic.AddressSpace.GetWritableRegion(tlsAddress, tlsSize))
+            {
+                CmifRequest request = CmifMessage.CreateRequest(tlsRegion.Memory.Span, new CmifRequestFormat()
+                {
+                    DataSize  = data.Length,
+                    RequestId = requestId,
+                    SendPid   = sendPid
+                });
+
+                data.CopyTo(request.Data);
+            }
+
+            Result result = HorizonStatic.Syscall.SendSyncRequest(sessionHandle);
+
+            if (result.IsFailure)
+            {
+                response = default;
+
+                return result;
+            }
+
+            return CmifMessage.ParseResponse(out response, HorizonStatic.AddressSpace.GetWritableRegion(tlsAddress, tlsSize).Memory.Span, false, 0);
+        }
+    }
+}