Code:
/ FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / xsp / System / Web / PerfCounters.cs / 1 / PerfCounters.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* * PerfCounters class */ namespace System.Web { using System.Web.Util; using System.Threading; using System.Runtime.InteropServices; internal sealed class PerfInstanceDataHandle: SafeHandle { internal PerfInstanceDataHandle() : base(IntPtr.Zero, true) { } internal IntPtr UnsafeHandle { get { return handle; } } public override bool IsInvalid { get { return handle == IntPtr.Zero; } } override protected bool ReleaseHandle() { UnsafeNativeMethods.PerfCloseAppCounters(handle); handle = IntPtr.Zero; return true; } } internal sealed class PerfCounters { private static PerfInstanceDataHandle _instance = null; private static IntPtr _global = IntPtr.Zero; private static IntPtr _stateService = IntPtr.Zero; private PerfCounters () {} internal static void Open(string appName) { Debug.Assert(appName != null); OpenCounter(appName); } internal static void OpenStateCounters() { OpenCounter(null); } // The app name should either be a valid app name or be 'null' to get the state service // counters initialized private static void OpenCounter(string appName) { try { // Don't activate perf counters if webengine.dll isn't loaded if (! HttpRuntime.IsEngineLoaded) return; // Open the global counters if (_global == IntPtr.Zero) { _global = UnsafeNativeMethods.PerfOpenGlobalCounters(); } // If appName is null, then we want the state counters if (appName == null) { if (_stateService == IntPtr.Zero) { _stateService = UnsafeNativeMethods.PerfOpenStateCounters(); } } else { if (appName != null) { _instance = UnsafeNativeMethods.PerfOpenAppCounters(appName); } } } catch (Exception e) { Debug.Trace("Perfcounters", "Exception: " + e.StackTrace); } } // Make sure webengine.dll is loaded before attempting to call into it (ASURT 98531) internal static void IncrementCounter(AppPerfCounter counter) { if (_instance != null) UnsafeNativeMethods.PerfIncrementCounter(_instance.UnsafeHandle, (int) counter); } internal static void DecrementCounter(AppPerfCounter counter) { if (_instance != null) UnsafeNativeMethods.PerfDecrementCounter(_instance.UnsafeHandle, (int) counter); } internal static void IncrementCounterEx(AppPerfCounter counter, int delta) { if (_instance != null) UnsafeNativeMethods.PerfIncrementCounterEx(_instance.UnsafeHandle, (int) counter, delta); } internal static void SetCounter(AppPerfCounter counter, int value) { if (_instance != null) UnsafeNativeMethods.PerfSetCounter(_instance.UnsafeHandle, (int) counter, value); } // It's important that this be debug only. We don't want production // code to access shared memory that another process could corrupt. #if DBG internal static int GetCounter(AppPerfCounter counter) { if (_instance != null) return UnsafeNativeMethods.PerfGetCounter(_instance.UnsafeHandle, (int) counter); else return -1; } #endif internal static int GetGlobalCounter(GlobalPerfCounter counter) { if (_global != IntPtr.Zero) return UnsafeNativeMethods.PerfGetCounter(_global, (int) counter); else return -1; } internal static void IncrementGlobalCounter(GlobalPerfCounter counter) { if (_global != IntPtr.Zero) UnsafeNativeMethods.PerfIncrementCounter(_global, (int) counter); } internal static void DecrementGlobalCounter(GlobalPerfCounter counter) { if (_global != IntPtr.Zero) UnsafeNativeMethods.PerfDecrementCounter(_global, (int) counter); } #if UNUSED_CODE internal static void IncrementGlobalCounterEx(GlobalPerfCounter counter, int delta) { if (_global != IntPtr.Zero) UnsafeNativeMethods.PerfIncrementCounterEx(_global, (int) counter, delta); } #endif internal static void SetGlobalCounter(GlobalPerfCounter counter, int value) { if (_global != IntPtr.Zero) UnsafeNativeMethods.PerfSetCounter(_global, (int) counter, value); } internal static void IncrementStateServiceCounter(StateServicePerfCounter counter) { if (_stateService == IntPtr.Zero) return; UnsafeNativeMethods.PerfIncrementCounter(_stateService, (int) counter); switch (counter) { case StateServicePerfCounter.STATE_SERVICE_SESSIONS_TOTAL: IncrementGlobalCounter(GlobalPerfCounter.STATE_SERVER_SESSIONS_TOTAL); break; case StateServicePerfCounter.STATE_SERVICE_SESSIONS_ACTIVE: IncrementGlobalCounter(GlobalPerfCounter.STATE_SERVER_SESSIONS_ACTIVE); break; case StateServicePerfCounter.STATE_SERVICE_SESSIONS_TIMED_OUT: IncrementGlobalCounter(GlobalPerfCounter.STATE_SERVER_SESSIONS_TIMED_OUT); break; case StateServicePerfCounter.STATE_SERVICE_SESSIONS_ABANDONED: IncrementGlobalCounter(GlobalPerfCounter.STATE_SERVER_SESSIONS_ABANDONED); break; default: break; } } internal static void DecrementStateServiceCounter(StateServicePerfCounter counter) { if (_stateService == IntPtr.Zero) return; UnsafeNativeMethods.PerfDecrementCounter(_stateService, (int) counter); switch (counter) { case StateServicePerfCounter.STATE_SERVICE_SESSIONS_TOTAL: DecrementGlobalCounter(GlobalPerfCounter.STATE_SERVER_SESSIONS_TOTAL); break; case StateServicePerfCounter.STATE_SERVICE_SESSIONS_ACTIVE: DecrementGlobalCounter(GlobalPerfCounter.STATE_SERVER_SESSIONS_ACTIVE); break; case StateServicePerfCounter.STATE_SERVICE_SESSIONS_TIMED_OUT: DecrementGlobalCounter(GlobalPerfCounter.STATE_SERVER_SESSIONS_TIMED_OUT); break; case StateServicePerfCounter.STATE_SERVICE_SESSIONS_ABANDONED: DecrementGlobalCounter(GlobalPerfCounter.STATE_SERVER_SESSIONS_ABANDONED); break; default: break; } } #if UNUSED_CODE internal static void IncrementStateServiceCounterEx(StateServicePerfCounter counter, int delta) { if (_stateService == IntPtr.Zero) return; UnsafeNativeMethods.PerfIncrementCounterEx(_stateService, (int) counter, delta); switch (counter) { case StateServicePerfCounter.STATE_SERVICE_SESSIONS_TOTAL: IncrementGlobalCounterEx(GlobalPerfCounter.STATE_SERVER_SESSIONS_TOTAL, delta); break; case StateServicePerfCounter.STATE_SERVICE_SESSIONS_ACTIVE: IncrementGlobalCounterEx(GlobalPerfCounter.STATE_SERVER_SESSIONS_ACTIVE, delta); break; case StateServicePerfCounter.STATE_SERVICE_SESSIONS_TIMED_OUT: IncrementGlobalCounterEx(GlobalPerfCounter.STATE_SERVER_SESSIONS_TIMED_OUT, delta); break; case StateServicePerfCounter.STATE_SERVICE_SESSIONS_ABANDONED: IncrementGlobalCounterEx(GlobalPerfCounter.STATE_SERVER_SESSIONS_ABANDONED, delta); break; default: break; } } #endif internal static void SetStateServiceCounter(StateServicePerfCounter counter, int value) { if (_stateService == IntPtr.Zero) return; UnsafeNativeMethods.PerfSetCounter(_stateService, (int) counter, value); switch (counter) { case StateServicePerfCounter.STATE_SERVICE_SESSIONS_TOTAL: SetGlobalCounter(GlobalPerfCounter.STATE_SERVER_SESSIONS_TOTAL, value); break; case StateServicePerfCounter.STATE_SERVICE_SESSIONS_ACTIVE: SetGlobalCounter(GlobalPerfCounter.STATE_SERVER_SESSIONS_ACTIVE, value); break; case StateServicePerfCounter.STATE_SERVICE_SESSIONS_TIMED_OUT: SetGlobalCounter(GlobalPerfCounter.STATE_SERVER_SESSIONS_TIMED_OUT, value); break; case StateServicePerfCounter.STATE_SERVICE_SESSIONS_ABANDONED: SetGlobalCounter(GlobalPerfCounter.STATE_SERVER_SESSIONS_ABANDONED, value); break; default: break; } } }; }
Link Menu

This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- QuaternionAnimationBase.cs
- BinHexEncoding.cs
- HtmlControl.cs
- PolyLineSegmentFigureLogic.cs
- ContextStaticAttribute.cs
- SuppressIldasmAttribute.cs
- NamespaceCollection.cs
- StoreItemCollection.cs
- DataSpaceManager.cs
- UpDownBase.cs
- WebRequestModuleElementCollection.cs
- HTTPRemotingHandler.cs
- EntityTemplateUserControl.cs
- RtfToXamlReader.cs
- MarginsConverter.cs
- ComponentDispatcherThread.cs
- UnsafeNativeMethods.cs
- CompareValidator.cs
- SafeHandle.cs
- ItemChangedEventArgs.cs
- UserInitiatedRoutedEventPermissionAttribute.cs
- IncrementalCompileAnalyzer.cs
- QueryCacheManager.cs
- EntityViewGenerator.cs
- OutOfProcStateClientManager.cs
- Scene3D.cs
- ObjectListCommand.cs
- StylusPointPropertyInfo.cs
- RijndaelManaged.cs
- RectValueSerializer.cs
- MdbDataFileEditor.cs
- DesignTimeDataBinding.cs
- ErrorRuntimeConfig.cs
- FolderLevelBuildProviderCollection.cs
- DropDownButton.cs
- HttpCachePolicyBase.cs
- XPathNavigatorKeyComparer.cs
- NumberAction.cs
- ExpandoClass.cs
- TextElementEditingBehaviorAttribute.cs
- ProcessManager.cs
- Preprocessor.cs
- VariableAction.cs
- InstanceStore.cs
- XomlCompilerError.cs
- Part.cs
- StringKeyFrameCollection.cs
- IndependentAnimationStorage.cs
- FixUpCollection.cs
- ScriptDescriptor.cs
- __Error.cs
- Event.cs
- OpenTypeCommon.cs
- Label.cs
- TextParaClient.cs
- BooleanConverter.cs
- UIElement.cs
- XmlDataSourceNodeDescriptor.cs
- ExecutionProperties.cs
- TimeSpan.cs
- XmlTextWriter.cs
- MemoryMappedView.cs
- ConsumerConnectionPointCollection.cs
- EngineSiteSapi.cs
- Internal.cs
- LogReserveAndAppendState.cs
- ObjectParameter.cs
- BaseValidator.cs
- ReflectEventDescriptor.cs
- TypeListConverter.cs
- XpsFilter.cs
- XmlReader.cs
- X509CertificateRecipientServiceCredential.cs
- TrackingRecord.cs
- VirtualizingStackPanel.cs
- MSAAEventDispatcher.cs
- SqlTypeConverter.cs
- LoginName.cs
- ActivityPreviewDesigner.cs
- SecurityContext.cs
- UIEndRequest.cs
- ArgumentNullException.cs
- OracleColumn.cs
- StrongNameIdentityPermission.cs
- RadioButtonList.cs
- BamlLocalizerErrorNotifyEventArgs.cs
- DESCryptoServiceProvider.cs
- ThreadLocal.cs
- DesignerActionTextItem.cs
- SafeNativeMethods.cs
- ServerValidateEventArgs.cs
- ApplyImportsAction.cs
- SqlUserDefinedAggregateAttribute.cs
- StreamReader.cs
- ItemTypeToolStripMenuItem.cs
- EditorResources.cs
- XmlAttributeOverrides.cs
- Scripts.cs
- DataPager.cs
- XmlUtil.cs