Code:
/ WCF / WCF / 3.5.30729.1 / untmp / Orcas / SP / ndp / cdf / src / WCF / ServiceModel / System / ServiceModel / ComIntegration / OuterProxyWrapper.cs / 1 / OuterProxyWrapper.cs
//------------------------------------------------------------------------------ // Copyright (c) Microsoft Corporation. All rights reserved. //----------------------------------------------------------------------------- namespace System.ServiceModel.ComIntegration { using System; using System.Runtime.InteropServices; using Microsoft.Win32; using System.Reflection; using System.Collections.Generic; using System.Threading; using System.ServiceModel.Channels; internal class ProxySupportWrapper { internal delegate int DelegateDllGetClassObject([In, MarshalAs(UnmanagedType.LPStruct)] Guid clsid, [In, MarshalAs(UnmanagedType.LPStruct)] Guid iid, ref IClassFactory ppv); const string fileName = @"ServiceMonikerSupport.dll"; const string functionName = @"DllGetClassObject"; static readonly Guid ClsidProxyInstanceProvider = new Guid("(BF0514FB-6912-4659-AD69-B727E5B7ADD4)"); SafeLibraryHandle monikerSupportLibrary; DelegateDllGetClassObject getCODelegate; internal ProxySupportWrapper() { monikerSupportLibrary = null; getCODelegate = null; } ~ProxySupportWrapper() { if (null != monikerSupportLibrary) { monikerSupportLibrary.Close(); monikerSupportLibrary = null; } } internal IProxyProvider GetProxyProvider() { if (null == monikerSupportLibrary) { lock (this) { if (null == monikerSupportLibrary) { getCODelegate = null; using (RegistryHandle regKey = RegistryHandle.GetCorrectBitnessHKLMSubkey((IntPtr.Size == 8), ServiceModelInstallStrings.WcfRegistryKey)) { string file = regKey.GetStringValue(ServiceModelInstallStrings.RuntimeInstallPathName).TrimEnd('\0') + "\\" + fileName; #pragma warning suppress 56523 // monikerSupportLibrary = UnsafeNativeMethods.LoadLibrary(file); if (monikerSupportLibrary.IsInvalid) { monikerSupportLibrary.SetHandleAsInvalid(); throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(Error.ServiceMonikerSupportLoadFailed(file)); } } } } } if (null == getCODelegate) { lock (this) { if (null == getCODelegate) { try { IntPtr procaddr = UnsafeNativeMethods.GetProcAddress(monikerSupportLibrary, functionName); getCODelegate = (DelegateDllGetClassObject)Marshal.GetDelegateForFunctionPointer(procaddr, typeof(DelegateDllGetClassObject)); } catch (Exception e) { if (DiagnosticUtility.IsFatal(e)) throw; throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ComPlusProxyProviderException(SR.GetString(SR.FailedProxyProviderCreation), e)); } } } } IClassFactory cf = null; IProxyProvider proxyProvider = null; try { getCODelegate(ClsidProxyInstanceProvider, typeof(IClassFactory).GUID, ref cf); proxyProvider = cf.CreateInstance(null, typeof(IProxyProvider).GUID) as IProxyProvider; Thread.MemoryBarrier(); } catch (Exception e) { if (DiagnosticUtility.IsFatal(e)) throw; throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ComPlusProxyProviderException(SR.GetString(SR.FailedProxyProviderCreation), e)); } finally { if (null != cf) { Marshal.ReleaseComObject(cf); cf = null; } } return proxyProvider; } } internal static class OuterProxyWrapper { static ProxySupportWrapper proxySupport = new ProxySupportWrapper(); public static IntPtr CreateOuterProxyInstance (IProxyManager proxyManager, ref Guid riid) { IntPtr pOuter = IntPtr.Zero; IProxyProvider proxyProvider = proxySupport.GetProxyProvider(); if (proxyProvider == null) { DiagnosticUtility.DebugAssert("Proxy Provider cannot be NULL"); throw DiagnosticUtility.ExceptionUtility.ThrowHelperInternal(true); } Guid riid2 = riid; int hr = proxyProvider.CreateOuterProxyInstance ( proxyManager, ref riid2, out pOuter); Marshal.ReleaseComObject(proxyProvider); if (hr != HR.S_OK) throw DiagnosticUtility.ExceptionUtility.ThrowHelperError (new COMException (SR.GetString (SR.FailedProxyProviderCreation), hr)); return pOuter; } public static IntPtr CreateDispatchProxy (IntPtr pOuter, IPseudoDispatch proxy) { IntPtr pInner = IntPtr.Zero; IProxyProvider proxyProvider = proxySupport.GetProxyProvider(); if (proxyProvider == null) { DiagnosticUtility.DebugAssert("Proxy Provider cannot be NULL"); throw DiagnosticUtility.ExceptionUtility.ThrowHelperInternal(true); } int hr = proxyProvider.CreateDispatchProxyInstance ( pOuter, proxy, out pInner); Marshal.ReleaseComObject(proxyProvider); if (hr != HR.S_OK) throw DiagnosticUtility.ExceptionUtility.ThrowHelperError (new COMException (SR.GetString (SR.FailedProxyProviderCreation), hr)); return pInner; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
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