From 08831eecf77cedd3c4192ebab5a9c485fb15d51e Mon Sep 17 00:00:00 2001
From: gdkchan <gab.dark.100@gmail.com>
Date: Wed, 4 Jan 2023 19:15:45 -0300
Subject: IPC refactor part 3+4: New server HIPC message processor (#4188)

* IPC refactor part 3 + 4: New server HIPC message processor with source generator based serialization

* Make types match on calls to AlignUp/AlignDown

* Formatting

* Address some PR feedback

* Move BitfieldExtensions to Ryujinx.Common.Utilities and consolidate implementations

* Rename Reader/Writer to SpanReader/SpanWriter and move to Ryujinx.Common.Memory

* Implement EventType

* Address more PR feedback

* Log request processing errors since they are not normal

* Rename waitable to multiwait and add missing lock

* PR feedback

* Ac_K PR feedback
---
 Ryujinx.Common/Memory/SpanReader.cs | 51 +++++++++++++++++++++++++++++++++++++
 Ryujinx.Common/Memory/SpanWriter.cs | 45 ++++++++++++++++++++++++++++++++
 2 files changed, 96 insertions(+)
 create mode 100644 Ryujinx.Common/Memory/SpanReader.cs
 create mode 100644 Ryujinx.Common/Memory/SpanWriter.cs

(limited to 'Ryujinx.Common/Memory')

diff --git a/Ryujinx.Common/Memory/SpanReader.cs b/Ryujinx.Common/Memory/SpanReader.cs
new file mode 100644
index 00000000..e46649e1
--- /dev/null
+++ b/Ryujinx.Common/Memory/SpanReader.cs
@@ -0,0 +1,51 @@
+using System;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.Common.Memory
+{
+    public ref struct SpanReader
+    {
+        private ReadOnlySpan<byte> _input;
+
+        public int Length => _input.Length;
+
+        public SpanReader(ReadOnlySpan<byte> input)
+        {
+            _input = input;
+        }
+
+        public T Read<T>() where T : unmanaged
+        {
+            T value = MemoryMarshal.Cast<byte, T>(_input)[0];
+
+            _input = _input.Slice(Unsafe.SizeOf<T>());
+
+            return value;
+        }
+
+        public ReadOnlySpan<byte> GetSpan(int size)
+        {
+            ReadOnlySpan<byte> data = _input.Slice(0, size);
+
+            _input = _input.Slice(size);
+
+            return data;
+        }
+
+        public T ReadAt<T>(int offset) where T : unmanaged
+        {
+            return MemoryMarshal.Cast<byte, T>(_input.Slice(offset))[0];
+        }
+
+        public ReadOnlySpan<byte> GetSpanAt(int offset, int size)
+        {
+            return _input.Slice(offset, size);
+        }
+
+        public void Skip(int size)
+        {
+            _input = _input.Slice(size);
+        }
+    }
+}
\ No newline at end of file
diff --git a/Ryujinx.Common/Memory/SpanWriter.cs b/Ryujinx.Common/Memory/SpanWriter.cs
new file mode 100644
index 00000000..5c35569d
--- /dev/null
+++ b/Ryujinx.Common/Memory/SpanWriter.cs
@@ -0,0 +1,45 @@
+using System;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.Common.Memory
+{
+    public ref struct SpanWriter
+    {
+        private Span<byte> _output;
+
+        public int Length => _output.Length;
+
+        public SpanWriter(Span<byte> output)
+        {
+            _output = output;
+        }
+
+        public void Write<T>(T value) where T : unmanaged
+        {
+            MemoryMarshal.Cast<byte, T>(_output)[0] = value;
+            _output = _output.Slice(Unsafe.SizeOf<T>());
+        }
+
+        public void Write(ReadOnlySpan<byte> data)
+        {
+            data.CopyTo(_output.Slice(0, data.Length));
+            _output = _output.Slice(data.Length);
+        }
+
+        public void WriteAt<T>(int offset, T value) where T : unmanaged
+        {
+            MemoryMarshal.Cast<byte, T>(_output.Slice(offset))[0] = value;
+        }
+
+        public void WriteAt(int offset, ReadOnlySpan<byte> data)
+        {
+            data.CopyTo(_output.Slice(offset, data.Length));
+        }
+
+        public void Skip(int size)
+        {
+            _output = _output.Slice(size);
+        }
+    }
+}
-- 
cgit v1.2.3