Imported Upstream version 4.0.0~alpha1

Former-commit-id: 806294f5ded97629b74c85c09952f2a74fe182d9

external/referencesource/System.Web/Configuration/MULTI_QI.cs

@@ -0,0 +1,86 @@
+//------------------------------------------------------------------------------
+// <copyright file="MULTI_QI.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//------------------------------------------------------------------------------
+
+namespace System.Web.Configuration {
+    using System.Collections;
+    using System.Configuration;
+    using System.Configuration.Internal;
+    using System.Web;
+    using System.Web.Util;
+    using System.Security;
+    using System.IO;
+    using System.Web.Hosting;
+    using System.Runtime.InteropServices;
+    using System.Reflection;
+    using System.Collections.Specialized;
+    using System.Xml;
+    using System.Security.Principal;
+    using System.Threading;
+    using System.Globalization;
+
+    [StructLayout(LayoutKind.Sequential, Pack = 4)]
+    internal struct MULTI_QI : IDisposable
+    {
+        internal MULTI_QI(IntPtr pid) {
+            piid = pid;
+            pItf = IntPtr.Zero;
+            hr = 0;
+        }
+
+        internal IntPtr piid;        // 'Guid' can't be marshaled to GUID* here? use IntPtr buffer trick instead
+        internal IntPtr pItf;
+        internal int hr;
+
+        void IDisposable.Dispose()
+        {
+            if (pItf != IntPtr.Zero)
+            {
+                Marshal.Release(pItf);
+                pItf = IntPtr.Zero;
+            }
+            if (piid != IntPtr.Zero)
+            {
+                Marshal.FreeCoTaskMem(piid);
+                piid = IntPtr.Zero;
+            }
+            GC.SuppressFinalize(this);
+
+        }
+    }
+
+    [StructLayout(LayoutKind.Sequential, Pack = 4)]
+    internal struct MULTI_QI_X64 : IDisposable
+    {
+        internal MULTI_QI_X64(IntPtr pid)
+        {
+            piid = pid;
+            pItf = IntPtr.Zero;
+            hr = 0;
+            padding = 0;
+        }
+
+        internal IntPtr piid;        // 'Guid' can't be marshaled to GUID* here? use IntPtr buffer trick instead
+        internal IntPtr pItf;
+        internal int hr;
+#pragma warning disable 0649
+        internal int padding;
+#pragma warning restore 0649
+
+        void IDisposable.Dispose()
+        {
+            if (pItf != IntPtr.Zero) {
+                Marshal.Release(pItf);
+                pItf = IntPtr.Zero;
+            }
+            if (piid != IntPtr.Zero) {
+                Marshal.FreeCoTaskMem(piid);
+                piid = IntPtr.Zero;
+            }
+            GC.SuppressFinalize(this);
+
+        }
+    }
+}