From c43ebf4062aea70a42259d05b13ea76dcab7df6d Mon Sep 17 00:00:00 2001
From: electricessence <5899455+electricessence@users.noreply.github.com>
Date: Sun, 4 Jul 2021 11:39:28 -0700
Subject: [PATCH] Implemented proper read lock for CopyTo span.

---
 source/Open.Collections.csproj                             | 2 +-
 source/Synchronized/LockSynchronizedCollectionWrapper.cs   | 2 +-
 .../Synchronized/ReadWriteSynchronizedCollectionWrapper.cs | 7 +++++++
 3 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/source/Open.Collections.csproj b/source/Open.Collections.csproj
index 972d1e0..c6782ca 100644
--- a/source/Open.Collections.csproj
+++ b/source/Open.Collections.csproj
@@ -17,7 +17,7 @@
 		<PackageProjectUrl>https://github.com/Open-NET-Libraries/Open.Collections/</PackageProjectUrl>
 		<RepositoryUrl>https://github.com/Open-NET-Libraries/Open.Collections/</RepositoryUrl>
 		<RepositoryType>git</RepositoryType>
-		<Version>2.10.3</Version>
+		<Version>2.11.1</Version>
 		<PackageReleaseNotes></PackageReleaseNotes>
 		<PackageLicenseExpression>MIT</PackageLicenseExpression>
 		<PublishRepositoryUrl>true</PublishRepositoryUrl>
diff --git a/source/Synchronized/LockSynchronizedCollectionWrapper.cs b/source/Synchronized/LockSynchronizedCollectionWrapper.cs
index 4191002..2f16a90 100644
--- a/source/Synchronized/LockSynchronizedCollectionWrapper.cs
+++ b/source/Synchronized/LockSynchronizedCollectionWrapper.cs
@@ -119,7 +119,7 @@ public override void CopyTo(T[] array, int arrayIndex)
 		/// If the count was less than the target length, a new span representing the results.
 		/// Otherwise the target is returned.
 		/// </returns>
-		public Span<T> CopyTo(Span<T> span)
+		public override Span<T> CopyTo(Span<T> span)
 		{
 			lock (Sync) return InternalSource.CopyToSpan(span);
 		}
diff --git a/source/Synchronized/ReadWriteSynchronizedCollectionWrapper.cs b/source/Synchronized/ReadWriteSynchronizedCollectionWrapper.cs
index bd6c8a3..d573cad 100644
--- a/source/Synchronized/ReadWriteSynchronizedCollectionWrapper.cs
+++ b/source/Synchronized/ReadWriteSynchronizedCollectionWrapper.cs
@@ -78,6 +78,13 @@ public override void Export(ICollection<T> to)
 		public override void CopyTo(T[] array, int arrayIndex)
 			=> Sync.Read(() => InternalSource.CopyTo(array, arrayIndex));
 
+		/// <inheritdoc cref="ReadOnlyCollectionWrapper{T, TCollection}.CopyTo(Span{T})"/>
+		public override Span<T> CopyTo(Span<T> span)
+		{
+			using var read = Sync.ReadLock();
+			return InternalSource.CopyToSpan(span);
+		}
+			
 		#endregion
 
 		#region Dispose