Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Web/Hosting/IQueueHost.cs

@@ -0,0 +1,34 @@
+//------------------------------------------------------------------------------
+// <copyright file="IQueueHost.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>                                                                
+//------------------------------------------------------------------------------
+
+namespace System.Web.Hosting {
+    using System;
+    using System.Collections;
+    using System.Configuration;
+    using System.Runtime.InteropServices;  
+    using System.Runtime.Remoting;
+    using System.Security.Permissions;
+    using System.Web;
+    using System.Web.Configuration;
+    using System.Web.Util;
+    
+
+    [ComImport, Guid("dc3b0a85-9da7-47e4-ba1b-e27da9db8a1e"), InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)]
+    public interface IListenerChannelCallback {
+
+        void ReportStarted();
+
+        void ReportStopped(int hr);
+
+        void ReportMessageReceived();
+
+        int  GetId();
+		
+        int  GetBlobLength();
+
+        void GetBlob([In, Out, MarshalAs(UnmanagedType.LPArray)] byte[] buffer, ref int bufferSize);
+    }
+}