Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / xsp / System / Web / Util / Transactions.cs / 1 / Transactions.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* * Transactions support for ASP.NET pages * * Copyright (c) 2000, Microsoft Corporation */ namespace System.Web.Util { using System.Collections; using System.EnterpriseServices; using System.Security.Permissions; // // Delegate to the transacted managed code // ////// public delegate void TransactedCallback(); // // Delegate for the internal transacted execution // internal enum TransactedExecState { CommitPending = 0, AbortPending = 1, Error = 2 } internal delegate int TransactedExecCallback(); // return value 'int' for interop // // Utility class with to be called to do transactions // ///[To be supplied.] ////// [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)] public class Transactions { ///[To be supplied.] ////// public static void InvokeTransacted(TransactedCallback callback, TransactionOption mode) { bool aborted = false; InvokeTransacted(callback, mode, ref aborted); } ///[To be supplied.] ////// public static void InvokeTransacted(TransactedCallback callback, TransactionOption mode, ref bool transactionAborted) { // check for hosting permission even if no user code on the stack HttpRuntime.CheckAspNetHostingPermission(AspNetHostingPermissionLevel.Medium, SR.Transaction_not_supported_in_low_trust); bool executeWithoutTransaction = false; #if !FEATURE_PAL // FEATURE_PAL does not enable Transactions if (Environment.OSVersion.Platform != PlatformID.Win32NT || Environment.OSVersion.Version.Major <= 4) throw new PlatformNotSupportedException(SR.GetString(SR.RequiresNT)); #else // !FEATURE_PAL throw new NotImplementedException("ROTORTODO"); #endif // !FEATURE_PAL if (mode == TransactionOption.Disabled) executeWithoutTransaction = true; if (executeWithoutTransaction) { // bypass the transaction logic callback(); transactionAborted = false; return; } TransactedInvocation call = new TransactedInvocation(callback); TransactedExecCallback execCallback = new TransactedExecCallback(call.ExecuteTransactedCode); PerfCounters.IncrementCounter(AppPerfCounter.TRANSACTIONS_PENDING); int rc; try { rc = UnsafeNativeMethods.TransactManagedCallback(execCallback, (int)mode); } finally { PerfCounters.DecrementCounter(AppPerfCounter.TRANSACTIONS_PENDING); } // rethrow the expection originally caught in managed code if (call.Error != null) throw new HttpException(null, call.Error); PerfCounters.IncrementCounter(AppPerfCounter.TRANSACTIONS_TOTAL); if (rc == 1) { PerfCounters.IncrementCounter(AppPerfCounter.TRANSACTIONS_COMMITTED); transactionAborted = false; } else if (rc == 0) { PerfCounters.IncrementCounter(AppPerfCounter.TRANSACTIONS_ABORTED); transactionAborted = true; } else { throw new HttpException(SR.GetString(SR.Cannot_execute_transacted_code)); } } // Class with wrappers to ContextUtil that don't throw internal class Utils { private Utils() { } /* internal static String TransactionId { get { String id = null; try { id = ContextUtil.TransactionId.ToString(); } catch { } return id; } } */ internal static bool IsInTransaction { get { bool inTransaction = false; try { inTransaction = ContextUtil.IsInTransaction; } catch { } return inTransaction; } } internal static bool AbortPending { get { bool aborted = false; try { if (ContextUtil.MyTransactionVote == TransactionVote.Abort) aborted = true; } catch { } return aborted; } } } // Managed class encapsulating the transacted call internal class TransactedInvocation { private TransactedCallback _callback; private Exception _error; internal TransactedInvocation(TransactedCallback callback) { _callback = callback; } internal int ExecuteTransactedCode() { TransactedExecState state = TransactedExecState.CommitPending; try { _callback(); if (Transactions.Utils.AbortPending) state = TransactedExecState.AbortPending; } catch (Exception e) { _error = e; // remember exception to be rethrown back in managed code state = TransactedExecState.Error; } return (int)state; } internal Exception Error { get { return _error; } } } } }[To be supplied.] ///
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- TemplateControlCodeDomTreeGenerator.cs
- HorizontalAlignConverter.cs
- ProxyWebPartManager.cs
- RegexGroup.cs
- TaskFileService.cs
- WindowsEditBoxRange.cs
- VirtualizedItemProviderWrapper.cs
- NameValuePair.cs
- SqlConnectionStringBuilder.cs
- EventLogQuery.cs
- DelegatedStream.cs
- DbModificationCommandTree.cs
- TypeForwardedToAttribute.cs
- MarshalByValueComponent.cs
- ButtonColumn.cs
- ConfigsHelper.cs
- WhitespaceRuleReader.cs
- XpsManager.cs
- WCFServiceClientProxyGenerator.cs
- RegistrySecurity.cs
- DtdParser.cs
- WindowsUpDown.cs
- XmlQuerySequence.cs
- IncrementalHitTester.cs
- PointAnimationUsingKeyFrames.cs
- ScaleTransform.cs
- FileLoadException.cs
- TreePrinter.cs
- ListViewSortEventArgs.cs
- InProcStateClientManager.cs
- Publisher.cs
- SqlBulkCopy.cs
- _HTTPDateParse.cs
- FontDriver.cs
- RuleInfoComparer.cs
- DataGridViewRowCancelEventArgs.cs
- TextTreeTextBlock.cs
- PropertyPath.cs
- PropertyIDSet.cs
- HtmlDocument.cs
- FileUpload.cs
- SiteOfOriginContainer.cs
- EndpointDiscoveryMetadataCD1.cs
- ComplusEndpointConfigContainer.cs
- FullTextLine.cs
- panel.cs
- SqlRowUpdatingEvent.cs
- NetworkAddressChange.cs
- SelectionRangeConverter.cs
- SynchronizationHandlesCodeDomSerializer.cs
- XmlQueryCardinality.cs
- Control.cs
- SimpleApplicationHost.cs
- TrackBarRenderer.cs
- GenericPrincipal.cs
- UdpTransportSettingsElement.cs
- WorkflowMessageEventHandler.cs
- AnimationClock.cs
- TextDocumentView.cs
- NativeMethods.cs
- ComboBoxRenderer.cs
- SingleConverter.cs
- Identity.cs
- PhysicalOps.cs
- PageScaling.cs
- HtmlInputControl.cs
- ShimAsPublicXamlType.cs
- SettingsBindableAttribute.cs
- UnionExpr.cs
- ServiceContractAttribute.cs
- ObjectConverter.cs
- List.cs
- TdsValueSetter.cs
- ZoneButton.cs
- CancelEventArgs.cs
- DbProviderFactoriesConfigurationHandler.cs
- _IPv6Address.cs
- Condition.cs
- CodeGeneratorOptions.cs
- ThemeInfoAttribute.cs
- Type.cs
- GridErrorDlg.cs
- AlternationConverter.cs
- SerialReceived.cs
- ImportCatalogPart.cs
- DispatcherBuilder.cs
- CommandTreeTypeHelper.cs
- TypedTableBaseExtensions.cs
- DataGridViewTextBoxColumn.cs
- ListSurrogate.cs
- ServiceProviders.cs
- MeshGeometry3D.cs
- CalendarItem.cs
- ObjectStateEntry.cs
- BamlLocalizer.cs
- ContentPresenter.cs
- PerfCounterSection.cs
- BooleanSwitch.cs
- XmlText.cs
- PrimitiveType.cs