Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / xsp / System / Web / State / ISessionStateStore.cs / 1 / ISessionStateStore.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* * SessionStateStoreProviderBase * */ namespace System.Web.SessionState { using System.Xml; using System.Security.Permissions; using System.Configuration.Provider; using System.Collections.Specialized; [FlagsAttribute()] internal enum SessionStateItemFlags : int { None = 0x00000000, Uninitialized = 0x00000001, IgnoreCacheItemRemoved = 0x00000002 } [FlagsAttribute()] public enum SessionStateActions : int { None = 0x00000000, InitializeItem = 0x00000001 } // This interface is used by SessionStateModule to read/write the session state data [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)] public abstract class SessionStateStoreProviderBase : ProviderBase { public abstract void Dispose(); // Called by SessionStateModule to notify the provider that Session_End is defined // in global.asax, and so when an item expires, it should call the expireCallback // If the provider does not support session expiry, it should return false. public abstract bool SetItemExpireCallback(SessionStateItemExpireCallback expireCallback); // Called at the beginning of the AcquireRequestState event public abstract void InitializeRequest(HttpContext context); // Get and return a SessionStateStoreData. // Please note that we are implementing a reader/writer lock mechanism. // // If successful: // - returns the item // // If not found: // - set 'locked' to false // - returns null // // If the item is already locked by another request: // - set 'locked' to true // - set 'lockAge' to how long has the item been locked // - set 'lockId' to the context of the lock // - returns null public abstract SessionStateStoreData GetItem(HttpContext context, String id, out bool locked, out TimeSpan lockAge, out object lockId, out SessionStateActions actions); // Get and lock a SessionStateStoreData. // Please note that we are implementing a reader/writer lock mechanism. // // If successful: // - set 'lockId' to the context of the lock // - returns the item // // If not found: // - set 'locked' to false // - returns null // // If the item is already locked by another request: // - set 'locked' to true // - set 'lockAge' to how long has the item been locked // - set 'lockId' to the context of the lock // - returns null public abstract SessionStateStoreData GetItemExclusive(HttpContext context, String id, out bool locked, out TimeSpan lockAge, out object lockId, out SessionStateActions actions); // Unlock an item locked by GetExclusive // 'lockId' is the lock context returned by previous call to GetExclusive public abstract void ReleaseItemExclusive(HttpContext context, String id, object lockId); // Write an item. // Note: The item is originally obtained by GetExclusive // Because SessionStateModule will release (by ReleaseExclusive) am item if // it has been locked for too long, so it is possible that the request calling // Set() may have lost the lock to someone else already. This can be // discovered by comparing the supplied lockId with the lockId value // stored with the state item. public abstract void SetAndReleaseItemExclusive(HttpContext context, String id, SessionStateStoreData item, object lockId, bool newItem); // Remove an item. See the note in Set. public abstract void RemoveItem(HttpContext context, String id, object lockId, SessionStateStoreData item); // Reset the expire time of an item based on its timeout value public abstract void ResetItemTimeout(HttpContext context, String id); // Create a brand new SessionStateStoreData. The created SessionStateStoreData must have // a non-null ISessionStateItemCollection. public abstract SessionStateStoreData CreateNewStoreData(HttpContext context, int timeout); public abstract void CreateUninitializedItem(HttpContext context, String id, int timeout); // Called during EndRequest event public abstract void EndRequest(HttpContext context); internal virtual void Initialize(string name, NameValueCollection config, IPartitionResolver partitionResolver) { } } [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)] public class SessionStateStoreData { ISessionStateItemCollection _sessionItems; HttpStaticObjectsCollection _staticObjects; int _timeout; public SessionStateStoreData(ISessionStateItemCollection sessionItems, HttpStaticObjectsCollection staticObjects, int timeout) { _sessionItems = sessionItems; _staticObjects = staticObjects; _timeout = timeout; } virtual public ISessionStateItemCollection Items { get { return _sessionItems; } } virtual public HttpStaticObjectsCollection StaticObjects { get { return _staticObjects; } } virtual public int Timeout { get { return _timeout; } set { _timeout = value; } } } }
Link Menu

This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- EnumerableRowCollection.cs
- updatecommandorderer.cs
- DataGridToolTip.cs
- SimpleFileLog.cs
- SelectionHighlightInfo.cs
- SolidColorBrush.cs
- HttpCookie.cs
- DefaultProxySection.cs
- EnumDataContract.cs
- _RequestCacheProtocol.cs
- TimeStampChecker.cs
- Wow64ConfigurationLoader.cs
- SystemIcons.cs
- XPathChildIterator.cs
- AdobeCFFWrapper.cs
- ContentDisposition.cs
- _Win32.cs
- TransformCollection.cs
- LinkLabel.cs
- ReadOnlyNameValueCollection.cs
- BaseParagraph.cs
- FormsAuthenticationModule.cs
- FixedSOMSemanticBox.cs
- DesignTimeParseData.cs
- ValidatorCompatibilityHelper.cs
- WebEventCodes.cs
- TemplateKey.cs
- DirectoryInfo.cs
- HebrewCalendar.cs
- PropertyEmitter.cs
- ServiceDocumentFormatter.cs
- Input.cs
- OdbcReferenceCollection.cs
- UnsignedPublishLicense.cs
- SupportsEventValidationAttribute.cs
- DataServiceRequestArgs.cs
- MD5CryptoServiceProvider.cs
- CompletionBookmark.cs
- DynamicILGenerator.cs
- CompilerState.cs
- TableLayoutCellPaintEventArgs.cs
- CFStream.cs
- WebZone.cs
- EntityContainerRelationshipSetEnd.cs
- ListView.cs
- DayRenderEvent.cs
- ApplicationContext.cs
- PageAsyncTask.cs
- FixedSOMContainer.cs
- TypeExtension.cs
- SqlConnection.cs
- HMACSHA384.cs
- ComplexPropertyEntry.cs
- AsyncStreamReader.cs
- SqlInternalConnectionSmi.cs
- FileFormatException.cs
- EntitySqlQueryCacheEntry.cs
- Latin1Encoding.cs
- BitmapEffectInput.cs
- EventSinkHelperWriter.cs
- ListItemsPage.cs
- DocumentScope.cs
- ItemContainerGenerator.cs
- UInt32.cs
- DBSqlParser.cs
- RadioButtonBaseAdapter.cs
- Trace.cs
- GradientStopCollection.cs
- ValidatedMobileControlConverter.cs
- FlowDocumentView.cs
- NumericUpDownAccelerationCollection.cs
- EditorResources.cs
- HttpHeaderCollection.cs
- ObjectToken.cs
- CodeRegionDirective.cs
- PolicyStatement.cs
- Point.cs
- AssociationTypeEmitter.cs
- ThicknessAnimationBase.cs
- MimeObjectFactory.cs
- log.cs
- SecurityTokenResolver.cs
- SchemaMerger.cs
- CollectionDataContract.cs
- SystemWebExtensionsSectionGroup.cs
- PlatformNotSupportedException.cs
- ResourceContainer.cs
- BamlTreeNode.cs
- ReflectPropertyDescriptor.cs
- CallSiteOps.cs
- DataGridViewIntLinkedList.cs
- Base64Stream.cs
- XsltException.cs
- Region.cs
- PinnedBufferMemoryStream.cs
- ComplexPropertyEntry.cs
- RegistryHandle.cs
- ExecutionContext.cs
- BitArray.cs
- DynamicDiscoveryDocument.cs