Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / xsp / System / Web / Hosting / ObjectCacheHost.cs / 1305376 / ObjectCacheHost.cs
//// Copyright (c) 2009 Microsoft Corporation. All rights reserved. // using System; using System.Runtime.Caching; using System.Runtime.Caching.Hosting; using System.Collections.Generic; using System.Web.Util; namespace System.Web.Hosting { internal sealed class ObjectCacheHost: IServiceProvider, IApplicationIdentifier, IFileChangeNotificationSystem, IMemoryCacheManager { private Object _lock = new Object(); private Dictionary_cacheInfos; internal sealed class FileChangeEventTarget { private OnChangedCallback _onChangedCallback; private FileChangeEventHandler _handler; private void OnChanged(Object sender, FileChangeEvent e) { _onChangedCallback(null); } internal FileChangeEventHandler Handler { get { return _handler; } } internal FileChangeEventTarget(OnChangedCallback onChangedCallback) { _onChangedCallback = onChangedCallback; _handler = new FileChangeEventHandler(this.OnChanged); } } internal sealed class MemoryCacheInfo { internal MemoryCache Cache; internal long Size; } Object IServiceProvider.GetService(Type service) { if (service == typeof(IFileChangeNotificationSystem)) { return this as IFileChangeNotificationSystem; } else if (service == typeof(IMemoryCacheManager)) { return this as IMemoryCacheManager; } else if (service == typeof(IApplicationIdentifier)) { return this as IApplicationIdentifier; } else { return null; } } String IApplicationIdentifier.GetApplicationId() { return HttpRuntime.AppDomainAppIdInternal; } void IFileChangeNotificationSystem.StartMonitoring(string filePath, OnChangedCallback onChangedCallback, out Object state, out DateTimeOffset lastWrite, out long fileSize) { if (filePath == null) { throw new ArgumentNullException("filePath"); } if (onChangedCallback == null) { throw new ArgumentNullException("onChangedCallback"); } FileChangeEventTarget target = new FileChangeEventTarget(onChangedCallback); FileAttributesData fad; HttpRuntime.FileChangesMonitor.StartMonitoringPath(filePath, target.Handler, out fad); if (fad == null) { fad = FileAttributesData.NonExistantAttributesData; } state = target; #if DBG Debug.Assert(fad.UtcLastWriteTime.Kind == DateTimeKind.Utc, "fad.UtcLastWriteTime.Kind == DateTimeKind.Utc"); #endif lastWrite = fad.UtcLastWriteTime; fileSize = fad.FileSize; } void IFileChangeNotificationSystem.StopMonitoring(string filePath, Object state) { if (filePath == null) { throw new ArgumentNullException("filePath"); } if (state == null) { throw new ArgumentNullException("state"); } HttpRuntime.FileChangesMonitor.StopMonitoringPath(filePath, state); } void IMemoryCacheManager.ReleaseCache(MemoryCache memoryCache) { if (memoryCache == null) { throw new ArgumentNullException("memoryCache"); } long delta = 0; lock (_lock) { if (_cacheInfos != null) { MemoryCacheInfo info = null; if (_cacheInfos.TryGetValue(memoryCache, out info)) { delta = 0 - info.Size; _cacheInfos.Remove(memoryCache); } } } if (delta != 0) { ApplicationManager appManager = HostingEnvironment.GetApplicationManager(); if (appManager != null) { appManager.GetUpdatedTotalCacheSize(delta); } } } void IMemoryCacheManager.UpdateCacheSize(long size, MemoryCache memoryCache) { if (memoryCache == null) { throw new ArgumentNullException("memoryCache"); } long delta = 0; lock (_lock) { if (_cacheInfos == null) { _cacheInfos = new Dictionary (); } MemoryCacheInfo info = null; if (!_cacheInfos.TryGetValue(memoryCache, out info)) { info = new MemoryCacheInfo(); info.Cache = memoryCache; _cacheInfos[memoryCache] = info; } delta = size - info.Size; info.Size = size; } ApplicationManager appManager = HostingEnvironment.GetApplicationManager(); if (appManager != null) { appManager.GetUpdatedTotalCacheSize(delta); } } internal long TrimCache(int percent) { long trimmedOrExpired = 0; Dictionary .KeyCollection caches = null; lock (_lock) { if (_cacheInfos != null && _cacheInfos.Count > 0) { caches = _cacheInfos.Keys; } } if (caches != null) { foreach (MemoryCache cache in caches) { trimmedOrExpired += cache.Trim(percent); } } return trimmedOrExpired; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. // // Copyright (c) 2009 Microsoft Corporation. All rights reserved. // using System; using System.Runtime.Caching; using System.Runtime.Caching.Hosting; using System.Collections.Generic; using System.Web.Util; namespace System.Web.Hosting { internal sealed class ObjectCacheHost: IServiceProvider, IApplicationIdentifier, IFileChangeNotificationSystem, IMemoryCacheManager { private Object _lock = new Object(); private Dictionary_cacheInfos; internal sealed class FileChangeEventTarget { private OnChangedCallback _onChangedCallback; private FileChangeEventHandler _handler; private void OnChanged(Object sender, FileChangeEvent e) { _onChangedCallback(null); } internal FileChangeEventHandler Handler { get { return _handler; } } internal FileChangeEventTarget(OnChangedCallback onChangedCallback) { _onChangedCallback = onChangedCallback; _handler = new FileChangeEventHandler(this.OnChanged); } } internal sealed class MemoryCacheInfo { internal MemoryCache Cache; internal long Size; } Object IServiceProvider.GetService(Type service) { if (service == typeof(IFileChangeNotificationSystem)) { return this as IFileChangeNotificationSystem; } else if (service == typeof(IMemoryCacheManager)) { return this as IMemoryCacheManager; } else if (service == typeof(IApplicationIdentifier)) { return this as IApplicationIdentifier; } else { return null; } } String IApplicationIdentifier.GetApplicationId() { return HttpRuntime.AppDomainAppIdInternal; } void IFileChangeNotificationSystem.StartMonitoring(string filePath, OnChangedCallback onChangedCallback, out Object state, out DateTimeOffset lastWrite, out long fileSize) { if (filePath == null) { throw new ArgumentNullException("filePath"); } if (onChangedCallback == null) { throw new ArgumentNullException("onChangedCallback"); } FileChangeEventTarget target = new FileChangeEventTarget(onChangedCallback); FileAttributesData fad; HttpRuntime.FileChangesMonitor.StartMonitoringPath(filePath, target.Handler, out fad); if (fad == null) { fad = FileAttributesData.NonExistantAttributesData; } state = target; #if DBG Debug.Assert(fad.UtcLastWriteTime.Kind == DateTimeKind.Utc, "fad.UtcLastWriteTime.Kind == DateTimeKind.Utc"); #endif lastWrite = fad.UtcLastWriteTime; fileSize = fad.FileSize; } void IFileChangeNotificationSystem.StopMonitoring(string filePath, Object state) { if (filePath == null) { throw new ArgumentNullException("filePath"); } if (state == null) { throw new ArgumentNullException("state"); } HttpRuntime.FileChangesMonitor.StopMonitoringPath(filePath, state); } void IMemoryCacheManager.ReleaseCache(MemoryCache memoryCache) { if (memoryCache == null) { throw new ArgumentNullException("memoryCache"); } long delta = 0; lock (_lock) { if (_cacheInfos != null) { MemoryCacheInfo info = null; if (_cacheInfos.TryGetValue(memoryCache, out info)) { delta = 0 - info.Size; _cacheInfos.Remove(memoryCache); } } } if (delta != 0) { ApplicationManager appManager = HostingEnvironment.GetApplicationManager(); if (appManager != null) { appManager.GetUpdatedTotalCacheSize(delta); } } } void IMemoryCacheManager.UpdateCacheSize(long size, MemoryCache memoryCache) { if (memoryCache == null) { throw new ArgumentNullException("memoryCache"); } long delta = 0; lock (_lock) { if (_cacheInfos == null) { _cacheInfos = new Dictionary (); } MemoryCacheInfo info = null; if (!_cacheInfos.TryGetValue(memoryCache, out info)) { info = new MemoryCacheInfo(); info.Cache = memoryCache; _cacheInfos[memoryCache] = info; } delta = size - info.Size; info.Size = size; } ApplicationManager appManager = HostingEnvironment.GetApplicationManager(); if (appManager != null) { appManager.GetUpdatedTotalCacheSize(delta); } } internal long TrimCache(int percent) { long trimmedOrExpired = 0; Dictionary .KeyCollection caches = null; lock (_lock) { if (_cacheInfos != null && _cacheInfos.Count > 0) { caches = _cacheInfos.Keys; } } if (caches != null) { foreach (MemoryCache cache in caches) { trimmedOrExpired += cache.Trim(percent); } } return trimmedOrExpired; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- DataServiceQueryOfT.cs
- CodeObjectCreateExpression.cs
- DateTimeOffsetConverter.cs
- StyleXamlParser.cs
- SecurityListenerSettingsLifetimeManager.cs
- CustomMenuItemCollection.cs
- WmlPanelAdapter.cs
- TcpProcessProtocolHandler.cs
- ZipIOCentralDirectoryBlock.cs
- SettingsContext.cs
- InputMethod.cs
- BehaviorEditorPart.cs
- StyleXamlTreeBuilder.cs
- DataColumnMappingCollection.cs
- MaskedTextBoxTextEditor.cs
- IdnElement.cs
- MailAddress.cs
- ScriptResourceAttribute.cs
- InternalCompensate.cs
- FileLoadException.cs
- VScrollProperties.cs
- COM2IDispatchConverter.cs
- ModifierKeysValueSerializer.cs
- Registry.cs
- LoginAutoFormat.cs
- IgnoreSection.cs
- SrgsItemList.cs
- HostingEnvironment.cs
- FreeFormPanel.cs
- MimeTypePropertyAttribute.cs
- GestureRecognizer.cs
- CategoryGridEntry.cs
- FormViewCommandEventArgs.cs
- Logging.cs
- QilFunction.cs
- SecurityException.cs
- OdbcHandle.cs
- DefaultAuthorizationContext.cs
- ToolBarTray.cs
- MatrixTransform.cs
- ExclusiveHandleList.cs
- WinInetCache.cs
- PropertyMapper.cs
- UIPermission.cs
- TextServicesCompartment.cs
- MetadataUtil.cs
- CmsInterop.cs
- TcpProcessProtocolHandler.cs
- OrderByBuilder.cs
- DataAdapter.cs
- ConnectionPoolRegistry.cs
- TextSearch.cs
- VBIdentifierTrimConverter.cs
- TypedTableBaseExtensions.cs
- CachedRequestParams.cs
- WebPartVerbCollection.cs
- XamlTypeMapper.cs
- DependencyPropertyConverter.cs
- PartitionedStreamMerger.cs
- TraceEventCache.cs
- SqlLiftWhereClauses.cs
- FileDialogPermission.cs
- ChannelRequirements.cs
- SoapSchemaImporter.cs
- HtmlInputFile.cs
- HealthMonitoringSection.cs
- InvalidCastException.cs
- RefExpr.cs
- ColorAnimation.cs
- ExternalCalls.cs
- DispatcherHooks.cs
- VirtualPathUtility.cs
- ElementProxy.cs
- TcpWorkerProcess.cs
- ToolStripPanel.cs
- ProfileBuildProvider.cs
- XamlPointCollectionSerializer.cs
- SerializationHelper.cs
- XPathNode.cs
- ColorConverter.cs
- IntegerValidatorAttribute.cs
- ConnectionProviderAttribute.cs
- XPathDocumentNavigator.cs
- querybuilder.cs
- XmlParser.cs
- BindingMemberInfo.cs
- StructuredType.cs
- CredentialCache.cs
- UInt32Converter.cs
- CodeTypeDelegate.cs
- TracingConnectionInitiator.cs
- ObjectConverter.cs
- DbConnectionPoolCounters.cs
- DataSetFieldSchema.cs
- DataPagerFieldCollection.cs
- _BufferOffsetSize.cs
- TdsRecordBufferSetter.cs
- PageThemeCodeDomTreeGenerator.cs
- grammarelement.cs
- NavigatorOutput.cs