Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / xsp / System / Web / Util / SafeBitVector32.cs / 1305376 / SafeBitVector32.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- using System; using System.Threading; namespace System.Web.Util { // // This is a multithreadsafe version of System.Collections.Specialized.BitVector32. // [Serializable] internal struct SafeBitVector32 { private volatile int _data; internal SafeBitVector32(int data) { this._data = data; } internal bool this[int bit] { get { int data = _data; return (data & bit) == bit; } set { for (;;) { int oldData = _data; int newData; if (value) { newData = oldData | bit; } else { newData = oldData & ~bit; } #pragma warning disable 0420 int result = Interlocked.CompareExchange(ref _data, newData, oldData); #pragma warning restore 0420 if (result == oldData) { break; } } } } internal bool ChangeValue(int bit, bool value) { for (;;) { int oldData = _data; int newData; if (value) { newData = oldData | bit; } else { newData = oldData & ~bit; } if (oldData == newData) { return false; } #pragma warning disable 0420 int result = Interlocked.CompareExchange(ref _data, newData, oldData); #pragma warning restore 0420 if (result == oldData) { return true; } } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- using System; using System.Threading; namespace System.Web.Util { // // This is a multithreadsafe version of System.Collections.Specialized.BitVector32. // [Serializable] internal struct SafeBitVector32 { private volatile int _data; internal SafeBitVector32(int data) { this._data = data; } internal bool this[int bit] { get { int data = _data; return (data & bit) == bit; } set { for (;;) { int oldData = _data; int newData; if (value) { newData = oldData | bit; } else { newData = oldData & ~bit; } #pragma warning disable 0420 int result = Interlocked.CompareExchange(ref _data, newData, oldData); #pragma warning restore 0420 if (result == oldData) { break; } } } } internal bool ChangeValue(int bit, bool value) { for (;;) { int oldData = _data; int newData; if (value) { newData = oldData | bit; } else { newData = oldData & ~bit; } if (oldData == newData) { return false; } #pragma warning disable 0420 int result = Interlocked.CompareExchange(ref _data, newData, oldData); #pragma warning restore 0420 if (result == oldData) { return true; } } } } } // 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
- SelectionChangedEventArgs.cs
- FileDialogPermission.cs
- CatalogZone.cs
- XmlSchemaAttribute.cs
- CompilerScopeManager.cs
- SpecularMaterial.cs
- AnimatedTypeHelpers.cs
- EntryWrittenEventArgs.cs
- Comparer.cs
- XmlDataSourceView.cs
- DayRenderEvent.cs
- TypeUtils.cs
- ScrollContentPresenter.cs
- WsdlServiceChannelBuilder.cs
- ObjectRef.cs
- DocumentScope.cs
- PipelineModuleStepContainer.cs
- Rfc2898DeriveBytes.cs
- BooleanAnimationBase.cs
- PeerInputChannel.cs
- CommonProperties.cs
- Command.cs
- EdmSchemaError.cs
- XsdDataContractImporter.cs
- CngKeyBlobFormat.cs
- EdmItemError.cs
- shaperfactory.cs
- FilterElement.cs
- StatusBarPanel.cs
- ButtonBaseAdapter.cs
- ArgumentValidation.cs
- ColumnResizeUndoUnit.cs
- ProfileSettings.cs
- DataMemberFieldConverter.cs
- mediapermission.cs
- Parsers.cs
- WebBrowserDocumentCompletedEventHandler.cs
- InputLangChangeRequestEvent.cs
- TextTreeObjectNode.cs
- BindingWorker.cs
- ToolStripSeparator.cs
- EventSetter.cs
- MsmqBindingBase.cs
- WindowsPrincipal.cs
- GroupedContextMenuStrip.cs
- WorkflowInstanceProxy.cs
- TemplatedMailWebEventProvider.cs
- SoapBinding.cs
- wmiprovider.cs
- EndPoint.cs
- UniqueEventHelper.cs
- UnicodeEncoding.cs
- CompiledELinqQueryState.cs
- PopupControlService.cs
- MsmqBindingFilter.cs
- LeaseManager.cs
- SoapDocumentServiceAttribute.cs
- RefreshEventArgs.cs
- Context.cs
- EntityCollectionChangedParams.cs
- EnumValidator.cs
- ThrowHelper.cs
- Pkcs7Recipient.cs
- ChannelBinding.cs
- ImageCodecInfoPrivate.cs
- DataBindingsDialog.cs
- ServicePoint.cs
- ExpressionLexer.cs
- ResourceReferenceExpression.cs
- CapabilitiesPattern.cs
- panel.cs
- WebServiceParameterData.cs
- Button.cs
- ToolStripProgressBar.cs
- Claim.cs
- LicenseProviderAttribute.cs
- AppSettingsReader.cs
- PermissionListSet.cs
- ReadContentAsBinaryHelper.cs
- FileSystemEnumerable.cs
- InternalSafeNativeMethods.cs
- OperationInfoBase.cs
- XmlCharCheckingWriter.cs
- RetrieveVirtualItemEventArgs.cs
- TemplateNodeContextMenu.cs
- BinaryUtilClasses.cs
- HashCodeCombiner.cs
- oledbconnectionstring.cs
- DbTransaction.cs
- TimerElapsedEvenArgs.cs
- CalendarData.cs
- Rect3DConverter.cs
- EntityContainer.cs
- StorageConditionPropertyMapping.cs
- JoinTreeNode.cs
- Int64Animation.cs
- PersonalizationAdministration.cs
- InvalidateEvent.cs
- Image.cs
- PropertyRecord.cs