Revert

Author: murphymcquet-msft

src/Microsoft.ServiceHub.Framework/AsyncNamedPipeClientStream.cs

@@ -1,6 +1,6 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
-#if WINDOWS
+
 using System.IO.Pipes;
 using System.Runtime.InteropServices;
 using System.Runtime.Versioning;
@@ -198,22 +198,3 @@ private Windows.Win32.Security.SECURITY_ATTRIBUTES GetSecurityAttributes(bool in
 		return secAttr;
 	}
 }
-#else
-using System.IO.Pipes;
-
-#pragma warning disable SA1600 // Elements should be documented
-internal class AsyncNamedPipeClientStream : PipeStream
-{
-	internal AsyncNamedPipeClientStream(PipeDirection direction, int bufferSize)
-		: base(direction, bufferSize)
-	{
-	}
-
-	internal AsyncNamedPipeClientStream(PipeDirection direction, PipeTransmissionMode transmissionMode, int outBufferSize)
-		: base(direction, transmissionMode, outBufferSize)
-	{
-	}
-}
-#pragma warning restore SA1600 // Elements should be documented
-
-#endif

src/Microsoft.ServiceHub.Framework/ServerFactory.cs

@@ -5,11 +5,10 @@
 using System.Diagnostics;
 using System.IO.Pipes;
 using System.Runtime.InteropServices;
+using System.Runtime.Versioning;
 using System.Security.Principal;
 using Windows.Win32.Foundation;
-#if WINDOWS
 using static Windows.Win32.PInvoke;
-#endif
 
 namespace Microsoft.ServiceHub.Framework;
 
@@ -103,7 +102,6 @@ public static async Task<Stream> ConnectAsync(string pipeName, ClientOptions opt
 		PipeStream? pipeStream = null;
 		try
 		{
-#if WINDOWS
 			if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
 			{
 				pipeStream = new AsyncNamedPipeClientStream(".", name, PipeDirection.InOut, pipeOptions);
@@ -114,10 +112,6 @@ public static async Task<Stream> ConnectAsync(string pipeName, ClientOptions opt
 				pipeStream = new NamedPipeClientStream(".", name, PipeDirection.InOut, pipeOptions);
 				await ConnectWithRetryAsync((NamedPipeClientStream)pipeStream, fullPipeOptions, cancellationToken, maxRetries, withSpinningWait: options.CpuSpinOverFirstChanceExceptions).ConfigureAwait(false);
 			}
-#else
-			pipeStream = new NamedPipeClientStream(".", name, PipeDirection.InOut, pipeOptions);
-			await ConnectWithRetryAsync((NamedPipeClientStream)pipeStream, fullPipeOptions, cancellationToken, maxRetries, withSpinningWait: options.CpuSpinOverFirstChanceExceptions).ConfigureAwait(false);
-#endif
 
 			return pipeStream;
 		}