Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / whidbey / NetFXspW7 / ndp / clr / src / BCL / System / Runtime / Remoting / TrackingServices.cs / 1 / TrackingServices.cs
// ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== /*============================================================ ** ** File: TrackingServices.cs ** ** ** Purpose: Defines the services for tracking lifetime and other ** operations on objects. ** ** ===========================================================*/ namespace System.Runtime.Remoting.Services { using System.Security.Permissions; using System; using System.Threading; using System.Globalization; [System.Runtime.InteropServices.ComVisible(true)] public interface ITrackingHandler { // Notify a handler that an object has been marshaled [SecurityPermissionAttribute(SecurityAction.LinkDemand, Flags=SecurityPermissionFlag.Infrastructure)] void MarshaledObject(Object obj, ObjRef or); // Notify a handler that an object has been unmarshaled [SecurityPermissionAttribute(SecurityAction.LinkDemand, Flags=SecurityPermissionFlag.Infrastructure)] void UnmarshaledObject(Object obj, ObjRef or); // Notify a handler that an object has been disconnected [SecurityPermissionAttribute(SecurityAction.LinkDemand, Flags=SecurityPermissionFlag.Infrastructure)] void DisconnectedObject(Object obj); } [SecurityPermissionAttribute(SecurityAction.LinkDemand, Flags=SecurityPermissionFlag.Infrastructure)] [System.Runtime.InteropServices.ComVisible(true)] public class TrackingServices { // Private member variables private static ITrackingHandler[] _Handlers = new ITrackingHandler[0]; // Array of registered tracking handlers private static int _Size = 0; // Number of elements in the array private static Object s_TrackingServicesSyncObject = null; private static Object TrackingServicesSyncObject { get { if (s_TrackingServicesSyncObject == null) { Object o = new Object(); Interlocked.CompareExchange(ref s_TrackingServicesSyncObject, o, null); } return s_TrackingServicesSyncObject; } } public static void RegisterTrackingHandler(ITrackingHandler handler) { lock(TrackingServicesSyncObject) { // Validate arguments if(null == handler) { throw new ArgumentNullException("handler"); } // Check to make sure that the handler has not been registered if(-1 == Match(handler)) { // Allocate a new array if necessary if((null == _Handlers) || (_Size == _Handlers.Length)) { ITrackingHandler[] temp = new ITrackingHandler[_Size*2+4]; if(null != _Handlers) { Array.Copy(_Handlers, temp, _Size); } _Handlers = temp; } _Handlers[_Size++] = handler; } else { throw new RemotingException(String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Remoting_TrackingHandlerAlreadyRegistered"), "handler")); } } } public static void UnregisterTrackingHandler(ITrackingHandler handler) { lock(TrackingServicesSyncObject) { // Validate arguments if(null == handler) { throw new ArgumentNullException("handler"); } // Check to make sure that the channel has been registered int matchingIdx = Match(handler); if(-1 == matchingIdx) { throw new RemotingException(String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Remoting_HandlerNotRegistered"), handler)); } // Delete the entry by copying the remaining entries Array.Copy(_Handlers, matchingIdx+1, _Handlers, matchingIdx, _Size-matchingIdx-1); _Size--; } } public static ITrackingHandler[] RegisteredHandlers { get { lock(TrackingServicesSyncObject) { if(0 == _Size) { return new ITrackingHandler[0]; } else { // Copy the array of registered handlers into a new array // and return ITrackingHandler[] temp = new ITrackingHandler[_Size]; for(int i = 0; i < _Size; i++) { temp[i] = _Handlers[i]; } return temp; } } } } // Notify all the handlers that an object has been marshaled internal static void MarshaledObject(Object obj, ObjRef or) { try{ ITrackingHandler[] temp = _Handlers; for(int i = 0; i < _Size; i++) { temp[i].MarshaledObject(obj, or); } } catch {} } // Notify all the handlers that an object has been unmarshaled internal static void UnmarshaledObject(Object obj, ObjRef or) { try{ ITrackingHandler[] temp = _Handlers; for(int i = 0; i < _Size; i++) { temp[i].UnmarshaledObject(obj, or); } } catch {} } // Notify all the handlers that an object has been disconnected internal static void DisconnectedObject(Object obj) { try{ ITrackingHandler[] temp = _Handlers; for(int i = 0; i < _Size; i++) { temp[i].DisconnectedObject(obj); } } catch {} } private static int Match(ITrackingHandler handler) { int idx = -1; for(int i = 0; i < _Size; i++) { if(_Handlers[i] == handler) { idx = i; break; } } return idx; } } } // namespace // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== /*============================================================ ** ** File: TrackingServices.cs ** ** ** Purpose: Defines the services for tracking lifetime and other ** operations on objects. ** ** ===========================================================*/ namespace System.Runtime.Remoting.Services { using System.Security.Permissions; using System; using System.Threading; using System.Globalization; [System.Runtime.InteropServices.ComVisible(true)] public interface ITrackingHandler { // Notify a handler that an object has been marshaled [SecurityPermissionAttribute(SecurityAction.LinkDemand, Flags=SecurityPermissionFlag.Infrastructure)] void MarshaledObject(Object obj, ObjRef or); // Notify a handler that an object has been unmarshaled [SecurityPermissionAttribute(SecurityAction.LinkDemand, Flags=SecurityPermissionFlag.Infrastructure)] void UnmarshaledObject(Object obj, ObjRef or); // Notify a handler that an object has been disconnected [SecurityPermissionAttribute(SecurityAction.LinkDemand, Flags=SecurityPermissionFlag.Infrastructure)] void DisconnectedObject(Object obj); } [SecurityPermissionAttribute(SecurityAction.LinkDemand, Flags=SecurityPermissionFlag.Infrastructure)] [System.Runtime.InteropServices.ComVisible(true)] public class TrackingServices { // Private member variables private static ITrackingHandler[] _Handlers = new ITrackingHandler[0]; // Array of registered tracking handlers private static int _Size = 0; // Number of elements in the array private static Object s_TrackingServicesSyncObject = null; private static Object TrackingServicesSyncObject { get { if (s_TrackingServicesSyncObject == null) { Object o = new Object(); Interlocked.CompareExchange(ref s_TrackingServicesSyncObject, o, null); } return s_TrackingServicesSyncObject; } } public static void RegisterTrackingHandler(ITrackingHandler handler) { lock(TrackingServicesSyncObject) { // Validate arguments if(null == handler) { throw new ArgumentNullException("handler"); } // Check to make sure that the handler has not been registered if(-1 == Match(handler)) { // Allocate a new array if necessary if((null == _Handlers) || (_Size == _Handlers.Length)) { ITrackingHandler[] temp = new ITrackingHandler[_Size*2+4]; if(null != _Handlers) { Array.Copy(_Handlers, temp, _Size); } _Handlers = temp; } _Handlers[_Size++] = handler; } else { throw new RemotingException(String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Remoting_TrackingHandlerAlreadyRegistered"), "handler")); } } } public static void UnregisterTrackingHandler(ITrackingHandler handler) { lock(TrackingServicesSyncObject) { // Validate arguments if(null == handler) { throw new ArgumentNullException("handler"); } // Check to make sure that the channel has been registered int matchingIdx = Match(handler); if(-1 == matchingIdx) { throw new RemotingException(String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Remoting_HandlerNotRegistered"), handler)); } // Delete the entry by copying the remaining entries Array.Copy(_Handlers, matchingIdx+1, _Handlers, matchingIdx, _Size-matchingIdx-1); _Size--; } } public static ITrackingHandler[] RegisteredHandlers { get { lock(TrackingServicesSyncObject) { if(0 == _Size) { return new ITrackingHandler[0]; } else { // Copy the array of registered handlers into a new array // and return ITrackingHandler[] temp = new ITrackingHandler[_Size]; for(int i = 0; i < _Size; i++) { temp[i] = _Handlers[i]; } return temp; } } } } // Notify all the handlers that an object has been marshaled internal static void MarshaledObject(Object obj, ObjRef or) { try{ ITrackingHandler[] temp = _Handlers; for(int i = 0; i < _Size; i++) { temp[i].MarshaledObject(obj, or); } } catch {} } // Notify all the handlers that an object has been unmarshaled internal static void UnmarshaledObject(Object obj, ObjRef or) { try{ ITrackingHandler[] temp = _Handlers; for(int i = 0; i < _Size; i++) { temp[i].UnmarshaledObject(obj, or); } } catch {} } // Notify all the handlers that an object has been disconnected internal static void DisconnectedObject(Object obj) { try{ ITrackingHandler[] temp = _Handlers; for(int i = 0; i < _Size; i++) { temp[i].DisconnectedObject(obj); } } catch {} } private static int Match(ITrackingHandler handler) { int idx = -1; for(int i = 0; i < _Size; i++) { if(_Handlers[i] == handler) { idx = i; break; } } return idx; } } } // namespace // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu

This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- SID.cs
- Scheduler.cs
- EditorBrowsableAttribute.cs
- ReversePositionQuery.cs
- SmtpNegotiateAuthenticationModule.cs
- _BaseOverlappedAsyncResult.cs
- IndicCharClassifier.cs
- PriorityQueue.cs
- EntityCommandCompilationException.cs
- ButtonFlatAdapter.cs
- TypeValidationEventArgs.cs
- RequestCachePolicy.cs
- XmlQueryRuntime.cs
- HttpSessionStateBase.cs
- ScriptingSectionGroup.cs
- WebConfigurationManager.cs
- AnnouncementEventArgs.cs
- HijriCalendar.cs
- ObjectAnimationUsingKeyFrames.cs
- AttachedPropertyBrowsableAttribute.cs
- AnnouncementEndpoint.cs
- SignedInfo.cs
- ObjectTypeMapping.cs
- ServiceContractViewControl.Designer.cs
- BaseTemplateBuildProvider.cs
- login.cs
- RadioButton.cs
- TextUtf8RawTextWriter.cs
- GiveFeedbackEvent.cs
- WizardForm.cs
- AppLevelCompilationSectionCache.cs
- SequenceDesigner.cs
- HttpEncoderUtility.cs
- WMICapabilities.cs
- HttpCachePolicyElement.cs
- ProcessModelInfo.cs
- RealProxy.cs
- X509Extension.cs
- CachedBitmap.cs
- cookiecollection.cs
- LoadItemsEventArgs.cs
- AggregateNode.cs
- _IPv6Address.cs
- TcpSocketManager.cs
- TextRange.cs
- BookmarkUndoUnit.cs
- Geometry3D.cs
- UserControl.cs
- MimeObjectFactory.cs
- TextControl.cs
- _RegBlobWebProxyDataBuilder.cs
- ExpressionContext.cs
- DbMetaDataFactory.cs
- BindToObject.cs
- SmiGettersStream.cs
- DocumentProperties.cs
- RedistVersionInfo.cs
- ColorInterpolationModeValidation.cs
- SelectionList.cs
- FixedSOMTextRun.cs
- BindingMemberInfo.cs
- CustomActivityDesigner.cs
- SiteMapNodeCollection.cs
- XmlEncoding.cs
- AuthenticateEventArgs.cs
- ChannelTokenTypeConverter.cs
- HandledEventArgs.cs
- SchemaImporter.cs
- StickyNoteHelper.cs
- RefreshResponseInfo.cs
- SchemaTypeEmitter.cs
- UInt16.cs
- BackgroundWorker.cs
- UrlMappingCollection.cs
- TreeViewBindingsEditor.cs
- ResourcePermissionBase.cs
- FontStyles.cs
- ResourceDefaultValueAttribute.cs
- EnumerableRowCollectionExtensions.cs
- OdbcConnectionHandle.cs
- OleDbTransaction.cs
- Roles.cs
- HandleTable.cs
- HelpProvider.cs
- OutputWindow.cs
- CompositeActivityTypeDescriptor.cs
- BoolExpressionVisitors.cs
- MouseOverProperty.cs
- AlternateViewCollection.cs
- Input.cs
- CalendarDesigner.cs
- ArrayExtension.cs
- BlockUIContainer.cs
- LayoutManager.cs
- SizeChangedInfo.cs
- SEHException.cs
- ModelFunctionTypeElement.cs
- CustomErrorsSection.cs
- AssociationEndMember.cs
- DictionarySectionHandler.cs