From 508a850c54a2dd27e0654c4f50188b3820078f86 Mon Sep 17 00:00:00 2001
From: Jim Horvath <38920027+jhorv@users.noreply.github.com>
Date: Sun, 4 Feb 2024 01:09:19 -0500
Subject: [PATCH] - WritableRegion: enable wrapping IMemoryOwner<byte> -
 IVirtualMemoryManager impls of GetWritableRegion() use pooled memory when
 region is non-contiguous. - IVirtualMemoryManager: add GetReadOnlySequence()
 and impls - ByteMemoryPool: add new method RentCopy() - ByteMemoryPool: make
 class static, remove ctor and singleton field from earlier impl

---
 .../Memory/BytesReadOnlySequenceSegment.cs    | 26 +++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 src/Ryujinx.Common/Memory/BytesReadOnlySequenceSegment.cs

diff --git a/src/Ryujinx.Common/Memory/BytesReadOnlySequenceSegment.cs b/src/Ryujinx.Common/Memory/BytesReadOnlySequenceSegment.cs
new file mode 100644
index 0000000000..9c4cd1ff36
--- /dev/null
+++ b/src/Ryujinx.Common/Memory/BytesReadOnlySequenceSegment.cs
@@ -0,0 +1,26 @@
+using System;
+using System.Buffers;
+
+namespace Ryujinx.Common.Memory
+{
+    /// <summary>
+    /// A concrete implementation of <seealso cref="ReadOnlySequence{T}"/>,
+    /// with methods to help build a full sequence.
+    /// </summary>
+    public sealed class BytesReadOnlySequenceSegment : ReadOnlySequenceSegment<byte>
+    {
+        public BytesReadOnlySequenceSegment(Memory<byte> memory) => Memory = memory;
+
+        public BytesReadOnlySequenceSegment Append(Memory<byte> memory)
+        {
+            var nextSegment = new BytesReadOnlySequenceSegment(memory)
+            {
+                RunningIndex = RunningIndex + Memory.Length
+            };
+
+            Next = nextSegment;
+
+            return nextSegment;
+        }
+    }
+}