Code:
/ 4.0 / 4.0 / 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. //------------------------------------------------------------------------------ //// 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
- HierarchicalDataTemplate.cs
- InternalCache.cs
- StylesEditorDialog.cs
- TextRangeBase.cs
- IntSecurity.cs
- AuthenticationException.cs
- HwndProxyElementProvider.cs
- EditorBrowsableAttribute.cs
- ResizingMessageFilter.cs
- VirtualizedCellInfoCollection.cs
- ExcCanonicalXml.cs
- FlowLayout.cs
- UpdatePanelTriggerCollection.cs
- ASCIIEncoding.cs
- MachineKeyConverter.cs
- NameSpaceEvent.cs
- Point3D.cs
- TraceListeners.cs
- UseAttributeSetsAction.cs
- DataGridGeneralPage.cs
- LoginView.cs
- WinInet.cs
- PartBasedPackageProperties.cs
- LinkedResource.cs
- KeyTime.cs
- DesignerExtenders.cs
- DataGridViewCellValueEventArgs.cs
- EntityContainerRelationshipSet.cs
- DataSourceCache.cs
- JpegBitmapEncoder.cs
- CachedPathData.cs
- HtmlTableCellCollection.cs
- Geometry.cs
- NavigationHelper.cs
- sortedlist.cs
- WasAdminWrapper.cs
- IsolationInterop.cs
- PointValueSerializer.cs
- XmlSchemaParticle.cs
- AnimationException.cs
- RuntimeArgumentHandle.cs
- UriWriter.cs
- DispatcherTimer.cs
- FixedSOMFixedBlock.cs
- CookieProtection.cs
- ItemList.cs
- HtmlFormWrapper.cs
- WebPartMinimizeVerb.cs
- FillErrorEventArgs.cs
- AttributeProviderAttribute.cs
- WsdlInspector.cs
- ControlBindingsCollection.cs
- Trace.cs
- SynchronizingStream.cs
- SqlInfoMessageEvent.cs
- MenuItemStyleCollection.cs
- ExpressionList.cs
- FolderLevelBuildProvider.cs
- HwndKeyboardInputProvider.cs
- WeakReadOnlyCollection.cs
- SchemaImporterExtension.cs
- CapabilitiesPattern.cs
- HtmlInputPassword.cs
- DecoderNLS.cs
- EventSinkActivity.cs
- BufferModeSettings.cs
- ConfigurationElementProperty.cs
- SafeWaitHandle.cs
- VectorCollection.cs
- AdapterUtil.cs
- RC2CryptoServiceProvider.cs
- WindowsSpinner.cs
- BaseEntityWrapper.cs
- Header.cs
- ClientOperation.cs
- ChooseAction.cs
- HyperLinkColumn.cs
- _DisconnectOverlappedAsyncResult.cs
- TypedAsyncResult.cs
- CompositeKey.cs
- TdsRecordBufferSetter.cs
- _HeaderInfo.cs
- ObjectDataProvider.cs
- DataGridViewRowCancelEventArgs.cs
- MexNamedPipeBindingCollectionElement.cs
- OperationContractGenerationContext.cs
- DiscoveryClientOutputChannel.cs
- EmptyStringExpandableObjectConverter.cs
- ObservableCollection.cs
- DbTransaction.cs
- DefaultTextStoreTextComposition.cs
- ReliableChannelListener.cs
- CurrentTimeZone.cs
- MembershipUser.cs
- OleCmdHelper.cs
- EventArgs.cs
- FileFormatException.cs
- InteropAutomationProvider.cs
- ClientWindowsAuthenticationMembershipProvider.cs
- CreateUserWizardAutoFormat.cs