Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / WF / RunTime / DebugEngine / ProgramPublisher.cs / 1305376 / ProgramPublisher.cs
// Copyright (c) Microsoft Corp., 2004. All rights reserved. #region Using directives using System; using System.Threading; using System.Reflection; using System.Runtime.InteropServices; using System.Diagnostics; #endregion namespace System.Workflow.Runtime.DebugEngine { [ComImport, Guid(Guids.CLSID_WDEProgramPublisher)] internal class WDEProgramPublisher { } internal sealed class ProgramPublisher { #region Data members private bool isPublished = false; IWDEProgramPublisher publisher; private DebugController controller; GCHandle gchWdeProgramNode; // This is used to pin the wdeProgramNodeSingleton (VS Debugger is using address to calculate cookies) private IWDEProgramNode wdeProgramNodeSingleton; #endregion #region Methods public ProgramPublisher() { this.publisher = null; } public bool Publish(DebugController controller) { Debug.WriteLine("WDE: ProgramPublisher.Publish()"); // In order to guarantee that the Program Nodes are always in the MTA, publish on a separate thread. if (isPublished) return false; try { this.controller = controller; Thread publisherThread = new Thread(PublisherThreadFunc); publisherThread.SetApartmentState(ApartmentState.MTA); publisherThread.IsBackground = true; publisherThread.Start(); publisherThread.Join(); } catch(Exception e) { // Eat up exceptions if the debugger is not installed. Debug.WriteLine("WDE: ProgramPublisher.Publish() exception: " + e.ToString()); } return this.isPublished; } private void PublisherThreadFunc() { try { this.publisher = new WDEProgramPublisher() as IWDEProgramPublisher; this.wdeProgramNodeSingleton = new ProgramNode(this.controller); this.gchWdeProgramNode = GCHandle.Alloc(this.wdeProgramNodeSingleton); this.publisher.Publish(this.wdeProgramNodeSingleton); this.isPublished = true; } catch(Exception e) { // Ignore any exceptions that are caused by WDE.dll not being present or registered. Debug.WriteLine("WDE: ProgramPublisher.PublisherThreadFunc() exception: " + e.ToString()); } } public void Unpublish() { if (!isPublished) return; Debug.WriteLine("WDE: ProgramPublisher.Unpublish()"); // In order to guarantee that the Program Nodes are always in the MTA, unpublish on a separate thread. try { Thread unpublisherThread = new Thread(UnpublishThreadFunc); unpublisherThread.SetApartmentState(ApartmentState.MTA); unpublisherThread.IsBackground = true; unpublisherThread.Start(); unpublisherThread.Join(); } catch (Exception e) { // Eat up exceptions if the debugger is not installed, etc. Debug.WriteLine("WDE: ProgramPublisher.Unpublish() exception: " + e.ToString()); } Debug.WriteLine("WDE: ProgramPublisher.Unpublish() Done"); } private void UnpublishThreadFunc() { try { this.publisher.Unpublish(this.wdeProgramNodeSingleton); } catch (Exception e) { Debug.WriteLine("WDE: ProgramPublisher.UnpublishThreadFunc(): catch exception " + e.ToString()); // We eat up any exceptions that can occur because the host process is abnormally terminated. } finally { this.gchWdeProgramNode.Free();// Rrelease pin on the this.wdeProgramNodeSingleton Marshal.ReleaseComObject(this.publisher); this.publisher = null; } this.isPublished = false; } #endregion } [ComImport(), Guid(Guids.IID_IWDEProgramPublisher), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)] internal interface IWDEProgramPublisher { void Publish([MarshalAs(UnmanagedType.IUnknown)] object ProgramNode); void Unpublish([MarshalAs(UnmanagedType.IUnknown)] object ProgramNode); } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. // Copyright (c) Microsoft Corp., 2004. All rights reserved. #region Using directives using System; using System.Threading; using System.Reflection; using System.Runtime.InteropServices; using System.Diagnostics; #endregion namespace System.Workflow.Runtime.DebugEngine { [ComImport, Guid(Guids.CLSID_WDEProgramPublisher)] internal class WDEProgramPublisher { } internal sealed class ProgramPublisher { #region Data members private bool isPublished = false; IWDEProgramPublisher publisher; private DebugController controller; GCHandle gchWdeProgramNode; // This is used to pin the wdeProgramNodeSingleton (VS Debugger is using address to calculate cookies) private IWDEProgramNode wdeProgramNodeSingleton; #endregion #region Methods public ProgramPublisher() { this.publisher = null; } public bool Publish(DebugController controller) { Debug.WriteLine("WDE: ProgramPublisher.Publish()"); // In order to guarantee that the Program Nodes are always in the MTA, publish on a separate thread. if (isPublished) return false; try { this.controller = controller; Thread publisherThread = new Thread(PublisherThreadFunc); publisherThread.SetApartmentState(ApartmentState.MTA); publisherThread.IsBackground = true; publisherThread.Start(); publisherThread.Join(); } catch(Exception e) { // Eat up exceptions if the debugger is not installed. Debug.WriteLine("WDE: ProgramPublisher.Publish() exception: " + e.ToString()); } return this.isPublished; } private void PublisherThreadFunc() { try { this.publisher = new WDEProgramPublisher() as IWDEProgramPublisher; this.wdeProgramNodeSingleton = new ProgramNode(this.controller); this.gchWdeProgramNode = GCHandle.Alloc(this.wdeProgramNodeSingleton); this.publisher.Publish(this.wdeProgramNodeSingleton); this.isPublished = true; } catch(Exception e) { // Ignore any exceptions that are caused by WDE.dll not being present or registered. Debug.WriteLine("WDE: ProgramPublisher.PublisherThreadFunc() exception: " + e.ToString()); } } public void Unpublish() { if (!isPublished) return; Debug.WriteLine("WDE: ProgramPublisher.Unpublish()"); // In order to guarantee that the Program Nodes are always in the MTA, unpublish on a separate thread. try { Thread unpublisherThread = new Thread(UnpublishThreadFunc); unpublisherThread.SetApartmentState(ApartmentState.MTA); unpublisherThread.IsBackground = true; unpublisherThread.Start(); unpublisherThread.Join(); } catch (Exception e) { // Eat up exceptions if the debugger is not installed, etc. Debug.WriteLine("WDE: ProgramPublisher.Unpublish() exception: " + e.ToString()); } Debug.WriteLine("WDE: ProgramPublisher.Unpublish() Done"); } private void UnpublishThreadFunc() { try { this.publisher.Unpublish(this.wdeProgramNodeSingleton); } catch (Exception e) { Debug.WriteLine("WDE: ProgramPublisher.UnpublishThreadFunc(): catch exception " + e.ToString()); // We eat up any exceptions that can occur because the host process is abnormally terminated. } finally { this.gchWdeProgramNode.Free();// Rrelease pin on the this.wdeProgramNodeSingleton Marshal.ReleaseComObject(this.publisher); this.publisher = null; } this.isPublished = false; } #endregion } [ComImport(), Guid(Guids.IID_IWDEProgramPublisher), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)] internal interface IWDEProgramPublisher { void Publish([MarshalAs(UnmanagedType.IUnknown)] object ProgramNode); void Unpublish([MarshalAs(UnmanagedType.IUnknown)] object ProgramNode); } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- MemberListBinding.cs
- XDRSchema.cs
- TreeNodeMouseHoverEvent.cs
- TypefaceMetricsCache.cs
- DescriptionAttribute.cs
- SQlBooleanStorage.cs
- PropertyInfoSet.cs
- SpeakCompletedEventArgs.cs
- ConfigurationLockCollection.cs
- HostProtectionPermission.cs
- Directory.cs
- PolyQuadraticBezierSegmentFigureLogic.cs
- SafeEventLogWriteHandle.cs
- PostBackOptions.cs
- mda.cs
- MergablePropertyAttribute.cs
- IISMapPath.cs
- XmlArrayAttribute.cs
- invalidudtexception.cs
- DbConnectionPoolGroupProviderInfo.cs
- UInt16Storage.cs
- ZoneLinkButton.cs
- _NegoState.cs
- DataGridViewEditingControlShowingEventArgs.cs
- Encoding.cs
- SqlReferenceCollection.cs
- Pkcs9Attribute.cs
- ConnectionProviderAttribute.cs
- XmlTypeAttribute.cs
- Pkcs7Signer.cs
- DataGridAddNewRow.cs
- LocalizableAttribute.cs
- PenContext.cs
- RSACryptoServiceProvider.cs
- ListParagraph.cs
- CompositeActivityTypeDescriptor.cs
- CorrelationHandle.cs
- MappingModelBuildProvider.cs
- ReadOnlyDataSource.cs
- GroupBoxAutomationPeer.cs
- HtmlTernaryTree.cs
- LinearGradientBrush.cs
- BitmapEffect.cs
- RectangleConverter.cs
- DomainUpDown.cs
- OrderingInfo.cs
- RenderContext.cs
- EventProvider.cs
- FixedHighlight.cs
- Subordinate.cs
- QueryConverter.cs
- NotifyParentPropertyAttribute.cs
- SqlUtils.cs
- Operand.cs
- ManagedCodeMarkers.cs
- RadioButtonRenderer.cs
- GlyphTypeface.cs
- EntityStoreSchemaGenerator.cs
- BufferedGraphicsContext.cs
- Compilation.cs
- CharStorage.cs
- FormsAuthenticationUser.cs
- ButtonAutomationPeer.cs
- ObjectViewListener.cs
- MessageDecoder.cs
- ChtmlSelectionListAdapter.cs
- ZipFileInfoCollection.cs
- ImportRequest.cs
- AlphabeticalEnumConverter.cs
- EntityClassGenerator.cs
- ProfileSection.cs
- StateDesigner.CommentLayoutGlyph.cs
- XNodeValidator.cs
- Process.cs
- MgmtConfigurationRecord.cs
- VisualTreeHelper.cs
- XPathQilFactory.cs
- Color.cs
- HostingPreferredMapPath.cs
- WebException.cs
- ValidatingReaderNodeData.cs
- SpellerHighlightLayer.cs
- QueryCursorEventArgs.cs
- Common.cs
- TextViewSelectionProcessor.cs
- DispatchChannelSink.cs
- ObjectStateEntry.cs
- ConfigurationSettings.cs
- ValidationSummary.cs
- WeakReferenceEnumerator.cs
- SqlParameterizer.cs
- CodeCastExpression.cs
- AssemblyBuilder.cs
- StoragePropertyMapping.cs
- GlyphCache.cs
- Console.cs
- Authorization.cs
- RegexWriter.cs
- EffectiveValueEntry.cs
- StaticFileHandler.cs