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 / DynamicPropertyHolder.cs / 1 / DynamicPropertyHolder.cs
// ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== // // DynamicPropertyHolder manages the dynamically registered properties // and the sinks contributed by them. Dynamic properties may be registered // to contribute sinks on a per-object basis (on the proxy or server side) // or on a per-Context basis (in both the client and server contexts). // // See also: RemotingServices.RegisterDynamicSink() API // namespace System.Runtime.Remoting.Contexts { using System.Runtime.Remoting; using System.Runtime.Remoting.Messaging; using System; using System.Collections; using System.Globalization; internal class DynamicPropertyHolder { private const int GROW_BY = 0x8; private IDynamicProperty[] _props; private int _numProps; private IDynamicMessageSink[] _sinks; internal virtual bool AddDynamicProperty(IDynamicProperty prop) { lock(this) { // We have to add a sink specific to the given context CheckPropertyNameClash(prop.Name, _props, _numProps); // check if we need to grow the array. bool bGrow=false; if (_props == null || _numProps == _props.Length) { _props = GrowPropertiesArray(_props); bGrow = true; } // now add the property _props[_numProps++] = prop; // we need to grow the sinks if we grew the props array or we had thrown // away the sinks array due to a recent removal! if (bGrow) { _sinks = GrowDynamicSinksArray(_sinks); } if (_sinks == null) { // Some property got unregistered -- we need to recreate // the list of sinks. _sinks = new IDynamicMessageSink[_props.Length]; for (int i=0; i<_numProps; i++) { _sinks[i] = ((IContributeDynamicSink)_props[i]).GetDynamicSink(); } } else { // append the Sink to the existing array of Sinks _sinks[_numProps-1] = ((IContributeDynamicSink)prop).GetDynamicSink(); } return true; } } internal virtual bool RemoveDynamicProperty(String name) { lock(this) { // We have to remove a property for a specific context for (int i=0; i<_numProps; i++) { if (_props[i].Name.Equals(name)) { _props[i] = _props[_numProps-1]; _numProps--; // throw away the dynamic sink list _sinks = null; return true; } } throw new RemotingException( String.Format( CultureInfo.CurrentCulture, Environment.GetResourceString("Remoting_Contexts_NoProperty"), name)); } } internal virtual IDynamicProperty[] DynamicProperties { get { if (_props == null) { return null; } lock (this) { IDynamicProperty[] retProps = new IDynamicProperty[_numProps]; Array.Copy(_props, retProps, _numProps); return retProps; } } } // We have to do this ArrayWithSize thing instead of // separately providing the Array and a Count ... since they // may not be in synch with multiple threads changing things // We do not want to provide a copy of the array for each // call for perf reasons. Besides this is used internally anyways. internal virtual ArrayWithSize DynamicSinks { get { if (_numProps == 0) { return null; } lock (this) { if (_sinks == null) { // Some property got unregistered -- we need to recreate // the list of sinks. _sinks = new IDynamicMessageSink[_numProps+GROW_BY]; for (int i=0; i<_numProps; i++) { _sinks[i] = ((IContributeDynamicSink)_props[i]).GetDynamicSink(); } } } return new ArrayWithSize(_sinks, _numProps); } } private static IDynamicMessageSink[] GrowDynamicSinksArray(IDynamicMessageSink[] sinks) { // grow the array int newSize = (sinks != null ? sinks.Length : 0) + GROW_BY; IDynamicMessageSink[] newSinks = new IDynamicMessageSink[newSize]; if (sinks != null) { // Copy existing properties over // Initial size should be chosen so that this rarely happens Array.Copy(sinks, newSinks, sinks.Length); } return newSinks; } internal static void NotifyDynamicSinks(IMessage msg, ArrayWithSize dynSinks, bool bCliSide, bool bStart, bool bAsync) { for (int i=0; i
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- ForceCopyBuildProvider.cs
- SqlCommand.cs
- SqlRecordBuffer.cs
- CommandSet.cs
- OleStrCAMarshaler.cs
- ClientRolePrincipal.cs
- WizardPanel.cs
- TemplateComponentConnector.cs
- HandledEventArgs.cs
- WebScriptServiceHostFactory.cs
- TextElement.cs
- BinaryParser.cs
- Visitor.cs
- CompressEmulationStream.cs
- ToolTipAutomationPeer.cs
- XMLSyntaxException.cs
- AddressHeaderCollectionElement.cs
- ProtocolsConfigurationEntry.cs
- ErrorStyle.cs
- ProcessInputEventArgs.cs
- ErrorStyle.cs
- RegexTree.cs
- WebSysDescriptionAttribute.cs
- MouseCaptureWithinProperty.cs
- DataGridRowAutomationPeer.cs
- PropertyEmitterBase.cs
- Storyboard.cs
- Point3DValueSerializer.cs
- XmlSchemaAnnotation.cs
- ExceptionUtility.cs
- IndexedGlyphRun.cs
- ObjectNavigationPropertyMapping.cs
- NumberSubstitution.cs
- ObjectDataSourceMethodEventArgs.cs
- ContentPosition.cs
- DataRowChangeEvent.cs
- MemoryMappedViewAccessor.cs
- Pen.cs
- LambdaSerializationException.cs
- CryptoKeySecurity.cs
- BitmapPalette.cs
- SurrogateEncoder.cs
- PriorityRange.cs
- TextElementAutomationPeer.cs
- LocalServiceSecuritySettingsElement.cs
- MulticastOption.cs
- AutomationElementCollection.cs
- DataGridColumnHeaderAutomationPeer.cs
- OptimalTextSource.cs
- AppendHelper.cs
- Soap12ProtocolReflector.cs
- DelegateBodyWriter.cs
- ISAPIWorkerRequest.cs
- Window.cs
- RemotingService.cs
- EncoderFallback.cs
- MiniConstructorInfo.cs
- FileReservationCollection.cs
- HostedAspNetEnvironment.cs
- SchemaImporterExtensionsSection.cs
- UnsafeNativeMethods.cs
- ZipIORawDataFileBlock.cs
- WindowsIdentity.cs
- GridViewColumn.cs
- DisposableCollectionWrapper.cs
- BitStack.cs
- IndexerHelper.cs
- HitTestWithPointDrawingContextWalker.cs
- InteropTrackingRecord.cs
- IPGlobalProperties.cs
- SequentialOutput.cs
- PageCatalogPart.cs
- SQLDoubleStorage.cs
- SafeRightsManagementSessionHandle.cs
- BrowserCapabilitiesFactoryBase.cs
- StreamWriter.cs
- HttpRequest.cs
- tooltip.cs
- SortDescriptionCollection.cs
- InfoCardRSAOAEPKeyExchangeFormatter.cs
- MemoryMappedFile.cs
- ChildChangedEventArgs.cs
- SystemTcpStatistics.cs
- Pair.cs
- XmlSerializationWriter.cs
- Tokenizer.cs
- HitTestParameters.cs
- TrustManagerMoreInformation.cs
- AsyncCodeActivityContext.cs
- ISFTagAndGuidCache.cs
- SmiEventSink_DeferedProcessing.cs
- InstanceHandle.cs
- XmlSchemaSimpleType.cs
- AvTraceDetails.cs
- IList.cs
- TypeContext.cs
- ImageClickEventArgs.cs
- MediaElementAutomationPeer.cs
- SmiRecordBuffer.cs
- LoginStatusDesigner.cs