Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / xsp / System / Web / State / ISessionStateStore.cs / 1305376 / 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 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) { } } 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; } } } } // 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
- Label.cs
- ConsumerConnectionPoint.cs
- ConnectionStringsExpressionBuilder.cs
- VisualBrush.cs
- DecoderFallbackWithFailureFlag.cs
- XmlLanguage.cs
- sitestring.cs
- QuerySetOp.cs
- PngBitmapEncoder.cs
- StorageComplexPropertyMapping.cs
- RefType.cs
- GenericAuthenticationEventArgs.cs
- DaylightTime.cs
- DeviceOverridableAttribute.cs
- DataGridViewColumn.cs
- XmlSerializer.cs
- PositiveTimeSpanValidatorAttribute.cs
- EdmRelationshipNavigationPropertyAttribute.cs
- StylusButtonEventArgs.cs
- PermissionListSet.cs
- PriorityBindingExpression.cs
- DbParameterHelper.cs
- Cursor.cs
- OrthographicCamera.cs
- StorageInfo.cs
- DataGridViewTopLeftHeaderCell.cs
- DetailsViewDeleteEventArgs.cs
- WorkflowOperationBehavior.cs
- EdmComplexTypeAttribute.cs
- EntityCollection.cs
- ConversionContext.cs
- BasicViewGenerator.cs
- Style.cs
- RequestDescription.cs
- ComponentResourceKey.cs
- ConvertersCollection.cs
- SqlParameterCollection.cs
- Header.cs
- ToolStripItemRenderEventArgs.cs
- MouseEvent.cs
- ConfigurationManagerInternalFactory.cs
- SapiAttributeParser.cs
- XPathEmptyIterator.cs
- HtmlButton.cs
- OledbConnectionStringbuilder.cs
- DoubleLink.cs
- ScriptBehaviorDescriptor.cs
- CustomLineCap.cs
- ObjectNotFoundException.cs
- AttachedPropertyMethodSelector.cs
- AdjustableArrowCap.cs
- XmlNamedNodeMap.cs
- ApplicationFileParser.cs
- UnsupportedPolicyOptionsException.cs
- Directory.cs
- MasterPage.cs
- ManipulationStartingEventArgs.cs
- UpdateCommand.cs
- ProfilePropertySettingsCollection.cs
- FrameworkTextComposition.cs
- Underline.cs
- SpellerStatusTable.cs
- wgx_commands.cs
- FrugalMap.cs
- TypeBrowser.xaml.cs
- MostlySingletonList.cs
- WindowsGraphics.cs
- MdiWindowListStrip.cs
- TransformerInfoCollection.cs
- ControlCollection.cs
- DropShadowEffect.cs
- IteratorFilter.cs
- TagMapCollection.cs
- DependencyPropertyDescriptor.cs
- MetadataSource.cs
- Preprocessor.cs
- EdmSchemaError.cs
- FormViewRow.cs
- DataGridViewAutoSizeModeEventArgs.cs
- SqlProcedureAttribute.cs
- CachedBitmap.cs
- OLEDB_Util.cs
- SeekStoryboard.cs
- FileSystemInfo.cs
- BufferedGraphicsContext.cs
- ShapingEngine.cs
- CommandBinding.cs
- TagMapCollection.cs
- SystemResources.cs
- EqualityArray.cs
- SystemSounds.cs
- SQLBoolean.cs
- DesignerAttribute.cs
- HMACSHA384.cs
- _AutoWebProxyScriptHelper.cs
- AmbiguousMatchException.cs
- WebPartMenuStyle.cs
- COM2PropertyDescriptor.cs
- regiisutil.cs
- DBCommandBuilder.cs