Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Base / System / Diagnostics / PresentationTraceSources.cs / 1305600 / PresentationTraceSources.cs
/****************************************************************************\ * * File: PresentationTraceSources.cs * * This class provides a public interface to access TraceSources for * enabling/disabling/filtering of trace messages by area. * * The other portion of this partial class is generated using * genTraceSource.pl and AvTraceMessages.txt * * Copyright (C) by Microsoft Corporation. All rights reserved. * \***************************************************************************/ using System.Collections.Generic; using System.Security; using System.Security.Permissions; using MS.Internal; using System.Windows; namespace System.Diagnostics { ////// PresentationTraceLevel - Enum which describes how much detail to trace about a particular object. /// public enum PresentationTraceLevel { ////// Trace no additional information. /// None, ////// Trace some additional information. /// Low, ////// Trace a medium amount of additional information. /// Medium, ////// Trace all available additional information. /// High, } ////// Helper class for retrieving TraceSources /// public static partial class PresentationTraceSources { //----------------------------------------------------- // // Public Properties // //----------------------------------------------------- ////// DependencyProperty for TraceLevel property. /// public static readonly DependencyProperty TraceLevelProperty = DependencyProperty.RegisterAttached( "TraceLevel", typeof(PresentationTraceLevel), typeof(PresentationTraceSources)); ////// Reads the attached property TraceLevel from the given element. /// public static PresentationTraceLevel GetTraceLevel(object element) { return TraceLevelStore.GetTraceLevel(element); } ////// Writes the attached property TraceLevel to the given element. /// public static void SetTraceLevel(object element, PresentationTraceLevel traceLevel) { TraceLevelStore.SetTraceLevel(element, traceLevel); } //----------------------------------------------------- // // Public Methods // //------------------------------------------------------ ////// Refresh TraceSources (re-read config file), creating if necessary. /// // Note: Better would be to separate enable from the Refresh method. public static void Refresh() { // Let AvTrace know that an explicit Refresh has been called. AvTrace.OnRefresh(); // Re-read the .config files System.Diagnostics.Trace.Refresh(); // Initialize any traces classes if needed if (TraceRefresh != null) { TraceRefresh(); } } internal static event TraceRefreshEventHandler TraceRefresh; ////// Critical: /// 1) Asserts for UMC to set trace level. /// /// TreatAsSafe: /// 1) The code path is only invoked when under a debugger /// if the caller can attach a debugger they already have /// unlimited access to the process. Also the only inputs /// to the assert are simply a label for the name. /// [SecurityCritical, SecurityTreatAsSafe] private static TraceSource CreateTraceSource(string sourceName) { // Create the trace source. Whether or not it will actually // trace anything is a decision of the trace source, e.g. it // depends on the app.config file settings. TraceSource source = new TraceSource(sourceName); // If we're attached to the debugger, ensure that at least // warnings/errors are getting traced. if (source.Switch.Level == SourceLevels.Off && AvTrace.IsDebuggerAttached()) { // we need to assert as PT callers under a debugger can invoke this code path // with out having the needed permission to peform this action new SecurityPermission(SecurityPermissionFlag.UnmanagedCode).Assert(); // BlessedAssert try { source.Switch.Level = SourceLevels.Warning; } finally { SecurityPermission.RevertAssert(); } } // returning source after reverting the assert to avoid // using exposed elements under the assert return source; } } internal delegate void TraceRefreshEventHandler(); } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. /****************************************************************************\ * * File: PresentationTraceSources.cs * * This class provides a public interface to access TraceSources for * enabling/disabling/filtering of trace messages by area. * * The other portion of this partial class is generated using * genTraceSource.pl and AvTraceMessages.txt * * Copyright (C) by Microsoft Corporation. All rights reserved. * \***************************************************************************/ using System.Collections.Generic; using System.Security; using System.Security.Permissions; using MS.Internal; using System.Windows; namespace System.Diagnostics { ////// PresentationTraceLevel - Enum which describes how much detail to trace about a particular object. /// public enum PresentationTraceLevel { ////// Trace no additional information. /// None, ////// Trace some additional information. /// Low, ////// Trace a medium amount of additional information. /// Medium, ////// Trace all available additional information. /// High, } ////// Helper class for retrieving TraceSources /// public static partial class PresentationTraceSources { //----------------------------------------------------- // // Public Properties // //----------------------------------------------------- ////// DependencyProperty for TraceLevel property. /// public static readonly DependencyProperty TraceLevelProperty = DependencyProperty.RegisterAttached( "TraceLevel", typeof(PresentationTraceLevel), typeof(PresentationTraceSources)); ////// Reads the attached property TraceLevel from the given element. /// public static PresentationTraceLevel GetTraceLevel(object element) { return TraceLevelStore.GetTraceLevel(element); } ////// Writes the attached property TraceLevel to the given element. /// public static void SetTraceLevel(object element, PresentationTraceLevel traceLevel) { TraceLevelStore.SetTraceLevel(element, traceLevel); } //----------------------------------------------------- // // Public Methods // //------------------------------------------------------ ////// Refresh TraceSources (re-read config file), creating if necessary. /// // Note: Better would be to separate enable from the Refresh method. public static void Refresh() { // Let AvTrace know that an explicit Refresh has been called. AvTrace.OnRefresh(); // Re-read the .config files System.Diagnostics.Trace.Refresh(); // Initialize any traces classes if needed if (TraceRefresh != null) { TraceRefresh(); } } internal static event TraceRefreshEventHandler TraceRefresh; ////// Critical: /// 1) Asserts for UMC to set trace level. /// /// TreatAsSafe: /// 1) The code path is only invoked when under a debugger /// if the caller can attach a debugger they already have /// unlimited access to the process. Also the only inputs /// to the assert are simply a label for the name. /// [SecurityCritical, SecurityTreatAsSafe] private static TraceSource CreateTraceSource(string sourceName) { // Create the trace source. Whether or not it will actually // trace anything is a decision of the trace source, e.g. it // depends on the app.config file settings. TraceSource source = new TraceSource(sourceName); // If we're attached to the debugger, ensure that at least // warnings/errors are getting traced. if (source.Switch.Level == SourceLevels.Off && AvTrace.IsDebuggerAttached()) { // we need to assert as PT callers under a debugger can invoke this code path // with out having the needed permission to peform this action new SecurityPermission(SecurityPermissionFlag.UnmanagedCode).Assert(); // BlessedAssert try { source.Switch.Level = SourceLevels.Warning; } finally { SecurityPermission.RevertAssert(); } } // returning source after reverting the assert to avoid // using exposed elements under the assert return source; } } internal delegate void TraceRefreshEventHandler(); } // 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
- AssertFilter.cs
- CSharpCodeProvider.cs
- RequestQueue.cs
- basecomparevalidator.cs
- ContextDataSourceView.cs
- Attachment.cs
- EDesignUtil.cs
- SlipBehavior.cs
- OrCondition.cs
- XPathNode.cs
- DataBindingHandlerAttribute.cs
- ToolStripItem.cs
- PermissionListSet.cs
- RequestCacheEntry.cs
- WebPartConnectionsEventArgs.cs
- HwndSourceKeyboardInputSite.cs
- IsolationInterop.cs
- MetadataSource.cs
- StringSource.cs
- ILGenerator.cs
- ForAllOperator.cs
- DrawingGroup.cs
- ContextBase.cs
- RenderingEventArgs.cs
- StringBuilder.cs
- ScriptServiceAttribute.cs
- DropSource.cs
- ASCIIEncoding.cs
- NavigationEventArgs.cs
- TemplateControlCodeDomTreeGenerator.cs
- Ref.cs
- DictionaryContent.cs
- NavigationExpr.cs
- GifBitmapEncoder.cs
- WeakReferenceKey.cs
- ImageDrawing.cs
- DispatchWrapper.cs
- StorageModelBuildProvider.cs
- Certificate.cs
- HMACSHA512.cs
- ReliableOutputSessionChannel.cs
- SQLInt64Storage.cs
- SequenceDesigner.xaml.cs
- EventMappingSettingsCollection.cs
- ListViewItem.cs
- InternalDuplexChannelFactory.cs
- ClientConfigPaths.cs
- TextDecorationCollection.cs
- HotSpotCollection.cs
- WebServiceEnumData.cs
- ToolBar.cs
- CustomCategoryAttribute.cs
- SessionStateItemCollection.cs
- Model3DCollection.cs
- SelectionGlyph.cs
- HwndSourceParameters.cs
- SqlNotificationRequest.cs
- ContentPresenter.cs
- DataGridViewCellValidatingEventArgs.cs
- WebBrowserEvent.cs
- GatewayDefinition.cs
- CodeNamespaceImport.cs
- _TransmitFileOverlappedAsyncResult.cs
- ContentPresenter.cs
- AnnotationResourceCollection.cs
- Effect.cs
- ImageIndexConverter.cs
- TextBoxAutomationPeer.cs
- HtmlInputImage.cs
- FileVersionInfo.cs
- Empty.cs
- HttpValueCollection.cs
- DriveNotFoundException.cs
- ConsoleKeyInfo.cs
- ByteArrayHelperWithString.cs
- SystemKeyConverter.cs
- PageBuildProvider.cs
- TranslateTransform.cs
- DrawingCollection.cs
- WinEventWrap.cs
- ChunkedMemoryStream.cs
- LinqDataSourceContextData.cs
- ResXBuildProvider.cs
- ToolStripMenuItemCodeDomSerializer.cs
- SoapIgnoreAttribute.cs
- HttpProfileBase.cs
- DataGridItem.cs
- _UncName.cs
- AlphabeticalEnumConverter.cs
- EmptyQuery.cs
- CancelEventArgs.cs
- Matrix3DValueSerializer.cs
- DataServiceConfiguration.cs
- SpanIndex.cs
- UrlPath.cs
- XmlChoiceIdentifierAttribute.cs
- LocalizableResourceBuilder.cs
- XPathNode.cs
- KeyToListMap.cs
- NameValuePair.cs