Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Web.Services/System/Web/Services/UnsafeNativeMethods.cs

@@ -0,0 +1,52 @@
+//------------------------------------------------------------------------------
+// <copyright file="UnsafeNativeMethods.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>                                                                
+//------------------------------------------------------------------------------
+
+namespace System.Web.Services {
+    using System;
+    using System.Runtime.InteropServices;
+    using System.Security.Permissions;
+    using System.Web.Services.Interop;
+    using System.Security;    
+
+    [ComVisible(false), SuppressUnmanagedCodeSecurity,
+    SecurityPermission(SecurityAction.LinkDemand, Flags = SecurityPermissionFlag.UnmanagedCode)]
+
+    internal class UnsafeNativeMethods {
+        private UnsafeNativeMethods() { }
+
+        [DllImport(ExternDll.Ole32, ExactSpelling = true)]
+        internal static extern int CoCreateInstance([In] ref Guid clsid,
+                                                    [MarshalAs(UnmanagedType.Interface)] object punkOuter,
+                                                    int context,
+                                                    [In] ref Guid iid,
+                                                    [MarshalAs(UnmanagedType.Interface)] out object punk);
+
+        internal static INotifySink2 RegisterNotifySource(INotifyConnection2 connection, INotifySource2 source) {
+            return connection.RegisterNotifySource(source);
+        }                                                    
+
+        internal static void UnregisterNotifySource(INotifyConnection2 connection, INotifySource2 source) {
+            connection.UnregisterNotifySource(source);
+        }   
+        
+        internal static void OnSyncCallOut(INotifySink2 sink, CallId callId, out IntPtr out_ppBuffer, ref int inout_pBufferSize) {
+            sink.OnSyncCallOut(callId, out out_ppBuffer, ref inout_pBufferSize);
+        }
+
+        internal static void OnSyncCallEnter(INotifySink2 sink, CallId callId, byte[] in_pBuffer, int in_BufferSize) {
+            sink.OnSyncCallEnter(callId, in_pBuffer, in_BufferSize);
+        }
+        
+        internal static void OnSyncCallReturn(INotifySink2 sink, CallId callId, byte[] in_pBuffer, int in_BufferSize) {
+            sink.OnSyncCallReturn(callId, in_pBuffer, in_BufferSize);
+        }
+
+        internal static void OnSyncCallExit(INotifySink2 sink, CallId callId, out IntPtr out_ppBuffer, ref int inout_pBufferSize) {
+            sink.OnSyncCallExit(callId, out out_ppBuffer, ref inout_pBufferSize);
+        }
+    }
+}
+