Code:
/ FXUpdate3074 / FXUpdate3074 / 1.1 / untmp / whidbey / QFE / ndp / fx / src / xsp / System / Web / PerfCounters.cs / 2 / 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; } } }; } // 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
- SqlConnectionHelper.cs
- FixedPageAutomationPeer.cs
- XamlPathDataSerializer.cs
- DataGridViewHeaderCell.cs
- bidPrivateBase.cs
- CompilerGeneratedAttribute.cs
- SHA1Managed.cs
- DerivedKeySecurityTokenStub.cs
- XmlWrappingReader.cs
- ItemAutomationPeer.cs
- FontInfo.cs
- PrintDialog.cs
- ErasingStroke.cs
- StringPropertyBuilder.cs
- CheckoutException.cs
- ArraySegment.cs
- TypeSystem.cs
- ReadWriteObjectLock.cs
- MetadataSource.cs
- ContextStack.cs
- Color.cs
- DataFormat.cs
- SelectionEditingBehavior.cs
- MainMenu.cs
- ValidatedControlConverter.cs
- WindowsListViewGroupSubsetLink.cs
- WindowsAuthenticationModule.cs
- Content.cs
- EventMappingSettingsCollection.cs
- SerializationInfoEnumerator.cs
- StaticExtension.cs
- ReadOnlyNameValueCollection.cs
- NCryptSafeHandles.cs
- WebBrowsableAttribute.cs
- VectorValueSerializer.cs
- AttachedPropertyBrowsableForTypeAttribute.cs
- UnsafeNativeMethodsPenimc.cs
- JournalEntryListConverter.cs
- DispatcherOperation.cs
- EmptyImpersonationContext.cs
- SynchronizedReadOnlyCollection.cs
- HTTPNotFoundHandler.cs
- PolicyValidationException.cs
- XmlSchemaInclude.cs
- OdbcConnectionStringbuilder.cs
- Metafile.cs
- QilBinary.cs
- CodeArgumentReferenceExpression.cs
- InkCanvasSelection.cs
- ThemeableAttribute.cs
- CurrentTimeZone.cs
- GeometryDrawing.cs
- HttpModuleCollection.cs
- BuildProviderCollection.cs
- Win32Native.cs
- NetworkCredential.cs
- XsltException.cs
- SmiGettersStream.cs
- MetadataSource.cs
- StructuredType.cs
- AuthenticationModeHelper.cs
- hresults.cs
- LoginDesigner.cs
- CachedFontFace.cs
- EventProperty.cs
- SrgsElement.cs
- SqlClientMetaDataCollectionNames.cs
- ComplexLine.cs
- Track.cs
- ListBoxItemWrapperAutomationPeer.cs
- UITypeEditor.cs
- RawUIStateInputReport.cs
- XmlEntity.cs
- ConstantCheck.cs
- JsonWriterDelegator.cs
- TargetPerspective.cs
- StringFunctions.cs
- Baml2006Reader.cs
- Scheduling.cs
- BidPrivateBase.cs
- UriWriter.cs
- IDataContractSurrogate.cs
- Rule.cs
- webproxy.cs
- StringConverter.cs
- ViewStateModeByIdAttribute.cs
- DataGridViewAccessibleObject.cs
- CodeAttachEventStatement.cs
- MaskedTextProvider.cs
- graph.cs
- XmlDeclaration.cs
- Lease.cs
- IndexingContentUnit.cs
- ModuleBuilderData.cs
- RuntimeHelpers.cs
- ObjectDataSource.cs
- HttpSessionStateBase.cs
- XNodeValidator.cs
- GridViewColumn.cs
- RuntimeDelegateArgument.cs