Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.ServiceModel/System/ServiceModel/Activation/IConnectionRegister.cs

@@ -0,0 +1,33 @@
+//----------------------------------------------------------------------------
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//----------------------------------------------------------------------------
+
+namespace System.ServiceModel.Activation
+{
+    using System;
+    using System.Net;
+    using System.ServiceModel;
+    using System.ServiceModel.Channels;
+
+    [ServiceContract(SessionMode = SessionMode.Required, CallbackContract = typeof(IConnectionDuplicator))]
+    interface IConnectionRegister
+    {
+        [OperationContract(IsOneWay = false, IsInitiating = true)]
+        ListenerExceptionStatus Register(Version version, int pid, BaseUriWithWildcard path, int queueId, Guid token, string eventName);
+
+        [OperationContract]
+        bool ValidateUriRoute(Uri uri, IPAddress address, int port);
+
+        [OperationContract]
+        void Unregister();
+    }
+
+    //Used on the client side (e.g. inside WebHost) to add async support to validate the Uri without blocking IO threads to improve scalability.
+    [ServiceContract(SessionMode = SessionMode.Required, CallbackContract = typeof(IConnectionDuplicator))]
+    interface IConnectionRegisterAsync : IConnectionRegister
+    {
+        [OperationContract(AsyncPattern = true, Action = "http://tempuri.org/IConnectionRegister/ValidateUriRoute", ReplyAction = "http://tempuri.org/IConnectionRegister/ValidateUriRouteResponse")]
+        IAsyncResult BeginValidateUriRoute(System.Uri uri, IPAddress address, int port, AsyncCallback callback, object asyncState);
+        bool EndValidateUriRoute(System.IAsyncResult result);
+    }
+}