Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / whidbey / netfxsp / ndp / clr / src / BCL / System / SharedStatics.cs / 1 / SharedStatics.cs
// ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== /*============================================================================== ** ** Class: SharedStatics ** ** ** Purpose: Container for statics that are shared across AppDomains. ** ** =============================================================================*/ namespace System { using System.Threading; using System.Runtime.Remoting; using System.Security; using System.Security.Util; using System.Runtime.CompilerServices; using System.Runtime.ConstrainedExecution; using StringMaker = System.Security.Util.Tokenizer.StringMaker; internal sealed class SharedStatics { // this is declared static but is actually forced to be the same object // for each AppDomain at AppDomain create time. internal static SharedStatics _sharedStatics; // when we create the single object we can construct anything we will need // here. If not too many, then just create them all in the constructor, otherwise // can have the property check & create. Need to be aware of threading issues // when do so though. // Note: This ctor is not called when we setup _sharedStatics via AppDomain::SetupSharedStatics SharedStatics() { _Remoting_Identity_IDGuid = null; _Remoting_Identity_IDSeqNum = 0x40; // Reserve initial numbers for well known objects. _maker = null; } private String _Remoting_Identity_IDGuid; public static String Remoting_Identity_IDGuid { get { if (_sharedStatics._Remoting_Identity_IDGuid == null) { bool tookLock = false; RuntimeHelpers.PrepareConstrainedRegions(); try { Monitor.ReliableEnter(_sharedStatics, ref tookLock); if (_sharedStatics._Remoting_Identity_IDGuid == null) { _sharedStatics._Remoting_Identity_IDGuid = Guid.NewGuid().ToString().Replace('-', '_'); } } finally { if (tookLock) Monitor.Exit(_sharedStatics); } } BCLDebug.Assert(_sharedStatics._Remoting_Identity_IDGuid != null, "_sharedStatics._Remoting_Identity_IDGuid != null"); return _sharedStatics._Remoting_Identity_IDGuid; } } private StringMaker _maker; static public StringMaker GetSharedStringMaker() { StringMaker maker = null; bool tookLock = false; RuntimeHelpers.PrepareConstrainedRegions(); try { Monitor.ReliableEnter(_sharedStatics, ref tookLock); if (_sharedStatics._maker != null) { maker = _sharedStatics._maker; _sharedStatics._maker = null; } } finally { if (tookLock) Monitor.Exit(_sharedStatics); } if (maker == null) { maker = new StringMaker(); } return maker; } static public void ReleaseSharedStringMaker(ref StringMaker maker) { // save this stringmaker so someone else can use it bool tookLock = false; RuntimeHelpers.PrepareConstrainedRegions(); try { Monitor.ReliableEnter(_sharedStatics, ref tookLock); _sharedStatics._maker = maker; maker = null; } finally { if (tookLock) Monitor.Exit(_sharedStatics); } } // Note this may not need to be process-wide. private int _Remoting_Identity_IDSeqNum; internal static int Remoting_Identity_GetNextSeqNum() { return Interlocked.Increment(ref _sharedStatics._Remoting_Identity_IDSeqNum); } // This is the total amount of memory currently "reserved" via // all MemoryFailPoints allocated within the process. // Stored as a long because we need to use Interlocked.Add. private long _memFailPointReservedMemory; [ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success)] internal static long AddMemoryFailPointReservation(long size) { // Size can legitimately be negative - see Dispose. return Interlocked.Add(ref _sharedStatics._memFailPointReservedMemory, (long) size); } internal static ulong MemoryFailPointReservedMemory { get { BCLDebug.Assert(_sharedStatics._memFailPointReservedMemory >= 0, "Process-wide MemoryFailPoint reserved memory was negative!"); return (ulong) _sharedStatics._memFailPointReservedMemory; } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== /*============================================================================== ** ** Class: SharedStatics ** ** ** Purpose: Container for statics that are shared across AppDomains. ** ** =============================================================================*/ namespace System { using System.Threading; using System.Runtime.Remoting; using System.Security; using System.Security.Util; using System.Runtime.CompilerServices; using System.Runtime.ConstrainedExecution; using StringMaker = System.Security.Util.Tokenizer.StringMaker; internal sealed class SharedStatics { // this is declared static but is actually forced to be the same object // for each AppDomain at AppDomain create time. internal static SharedStatics _sharedStatics; // when we create the single object we can construct anything we will need // here. If not too many, then just create them all in the constructor, otherwise // can have the property check & create. Need to be aware of threading issues // when do so though. // Note: This ctor is not called when we setup _sharedStatics via AppDomain::SetupSharedStatics SharedStatics() { _Remoting_Identity_IDGuid = null; _Remoting_Identity_IDSeqNum = 0x40; // Reserve initial numbers for well known objects. _maker = null; } private String _Remoting_Identity_IDGuid; public static String Remoting_Identity_IDGuid { get { if (_sharedStatics._Remoting_Identity_IDGuid == null) { bool tookLock = false; RuntimeHelpers.PrepareConstrainedRegions(); try { Monitor.ReliableEnter(_sharedStatics, ref tookLock); if (_sharedStatics._Remoting_Identity_IDGuid == null) { _sharedStatics._Remoting_Identity_IDGuid = Guid.NewGuid().ToString().Replace('-', '_'); } } finally { if (tookLock) Monitor.Exit(_sharedStatics); } } BCLDebug.Assert(_sharedStatics._Remoting_Identity_IDGuid != null, "_sharedStatics._Remoting_Identity_IDGuid != null"); return _sharedStatics._Remoting_Identity_IDGuid; } } private StringMaker _maker; static public StringMaker GetSharedStringMaker() { StringMaker maker = null; bool tookLock = false; RuntimeHelpers.PrepareConstrainedRegions(); try { Monitor.ReliableEnter(_sharedStatics, ref tookLock); if (_sharedStatics._maker != null) { maker = _sharedStatics._maker; _sharedStatics._maker = null; } } finally { if (tookLock) Monitor.Exit(_sharedStatics); } if (maker == null) { maker = new StringMaker(); } return maker; } static public void ReleaseSharedStringMaker(ref StringMaker maker) { // save this stringmaker so someone else can use it bool tookLock = false; RuntimeHelpers.PrepareConstrainedRegions(); try { Monitor.ReliableEnter(_sharedStatics, ref tookLock); _sharedStatics._maker = maker; maker = null; } finally { if (tookLock) Monitor.Exit(_sharedStatics); } } // Note this may not need to be process-wide. private int _Remoting_Identity_IDSeqNum; internal static int Remoting_Identity_GetNextSeqNum() { return Interlocked.Increment(ref _sharedStatics._Remoting_Identity_IDSeqNum); } // This is the total amount of memory currently "reserved" via // all MemoryFailPoints allocated within the process. // Stored as a long because we need to use Interlocked.Add. private long _memFailPointReservedMemory; [ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success)] internal static long AddMemoryFailPointReservation(long size) { // Size can legitimately be negative - see Dispose. return Interlocked.Add(ref _sharedStatics._memFailPointReservedMemory, (long) size); } internal static ulong MemoryFailPointReservedMemory { get { BCLDebug.Assert(_sharedStatics._memFailPointReservedMemory >= 0, "Process-wide MemoryFailPoint reserved memory was negative!"); return (ulong) _sharedStatics._memFailPointReservedMemory; } } } } // 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
- StringValueSerializer.cs
- ObjectSelectorEditor.cs
- XmlSiteMapProvider.cs
- ColorIndependentAnimationStorage.cs
- HostedHttpRequestAsyncResult.cs
- RepeatBehaviorConverter.cs
- Size3DConverter.cs
- MetadataElement.cs
- CollectionContainer.cs
- OracleException.cs
- SubMenuStyle.cs
- NativeMethodsCLR.cs
- StringDictionaryEditor.cs
- HealthMonitoringSection.cs
- SpellerHighlightLayer.cs
- DateTime.cs
- FileDetails.cs
- UMPAttributes.cs
- PageOutputColor.cs
- DataObjectEventArgs.cs
- Decoder.cs
- ResourceContainer.cs
- BooleanFunctions.cs
- Scripts.cs
- UnsafePeerToPeerMethods.cs
- HtmlInputFile.cs
- CalendarTable.cs
- MetadataArtifactLoaderResource.cs
- Aggregates.cs
- UnsafeNativeMethods.cs
- HandlerWithFactory.cs
- ISFTagAndGuidCache.cs
- DiagnosticsElement.cs
- XamlSerializationHelper.cs
- SchemaNamespaceManager.cs
- CmsInterop.cs
- WorkflowOperationInvoker.cs
- XmlAnyElementAttributes.cs
- StreamResourceInfo.cs
- TagMapInfo.cs
- BufferBuilder.cs
- MethodAccessException.cs
- DrawingState.cs
- Polygon.cs
- ExpressionLink.cs
- DatagridviewDisplayedBandsData.cs
- XmlChildNodes.cs
- EntityViewGenerator.cs
- ErrorTableItemStyle.cs
- InputElement.cs
- RankException.cs
- FilteredSchemaElementLookUpTable.cs
- ExpressionPrefixAttribute.cs
- BitmapMetadataEnumerator.cs
- SplitContainer.cs
- SelfIssuedAuthProofToken.cs
- ComponentDispatcher.cs
- SweepDirectionValidation.cs
- DbConnectionPoolIdentity.cs
- RefreshEventArgs.cs
- HtmlHistory.cs
- FormsAuthenticationTicket.cs
- OutOfMemoryException.cs
- CodeRegionDirective.cs
- autovalidator.cs
- SHA384Managed.cs
- ProxyFragment.cs
- InputMethod.cs
- Rectangle.cs
- SecureUICommand.cs
- XmlNodeChangedEventManager.cs
- PermissionSetEnumerator.cs
- AttributeEmitter.cs
- Terminate.cs
- ParagraphVisual.cs
- CompiledQuery.cs
- Socket.cs
- JulianCalendar.cs
- AssemblyAttributesGoHere.cs
- GridViewColumnHeader.cs
- CacheMode.cs
- EventLog.cs
- UniqueIdentifierService.cs
- WebPartEditorCancelVerb.cs
- BufferedGraphicsContext.cs
- ResourcePermissionBase.cs
- AnimatedTypeHelpers.cs
- DESCryptoServiceProvider.cs
- GPPOINTF.cs
- FormCollection.cs
- wgx_sdk_version.cs
- BuildTopDownAttribute.cs
- MailAddress.cs
- DataGridToolTip.cs
- Context.cs
- IisTraceWebEventProvider.cs
- Soap12ProtocolImporter.cs
- ArrangedElementCollection.cs
- EventLogPermissionAttribute.cs
- TextInfo.cs