Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / Core / System / Diagnostics / PerformanceData / CounterSetInstanceCounterDataSet.cs / 1305376 / CounterSetInstanceCounterDataSet.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Diagnostics.PerformanceData { using System; using System.Threading; using System.Runtime.InteropServices; using System.ComponentModel; using System.Collections.Generic; using System.Diagnostics; using System.Diagnostics.CodeAnalysis; using Microsoft.Win32; ////// CounterData class is used to store actual raw counter data. It is the value element within /// CounterSetInstanceCounterDataSet, which is part of CounterSetInstance. /// [System.Security.Permissions.HostProtection(MayLeakOnAbort = true)] public sealed class CounterData { unsafe private Int64 * m_offset; ////// CounterData constructor /// /// counterId would come from CounterSet::AddCounter() parameter /// The memory location to store raw counter data //// [System.Security.SecurityCritical] unsafe internal CounterData(Int64 * pCounterData) { m_offset = pCounterData; * m_offset = 0; } ///// // /// Value property it used to query/update actual raw counter data. /// public Int64 Value { //// [System.Security.SecurityCritical] get { unsafe { return Interlocked.Read(ref (* m_offset)); } } //// // [System.Security.SecurityCritical] set { unsafe { Interlocked.Exchange(ref (* m_offset), value); } } } [System.Security.SecurityCritical] public void Increment() { unsafe { Interlocked.Increment (ref (*m_offset)); } } [System.Security.SecurityCritical] public void Decrement() { unsafe { Interlocked.Decrement (ref (*m_offset)); } } [System.Security.SecurityCritical] public void IncrementBy(Int64 value) { unsafe { Interlocked.Add (ref (*m_offset), value); } } ///// /// RawValue property it used to query/update actual raw counter data. /// This property is not thread-safe and should only be used /// for performance-critical single-threaded access. /// public Int64 RawValue { //// [System.Security.SecurityCritical] get { unsafe { return (* m_offset); } } //// // [System.Security.SecurityCritical] set { unsafe { * m_offset = value; } } } } ///// /// CounterSetInstanceCounterDataSet is part of CounterSetInstance class, and is used to store raw counter data /// for all counters added in CounterSet. /// [System.Security.Permissions.HostProtection(MayLeakOnAbort = true)] public sealed class CounterSetInstanceCounterDataSet : IDisposable { internal CounterSetInstance m_instance; private Dictionarym_counters; private Int32 m_disposed; unsafe internal byte * m_dataBlock; // // [System.Security.SecurityCritical] [SuppressMessage("Microsoft.Usage", "CA2208:InstantiateArgumentExceptionsCorrectly")] internal CounterSetInstanceCounterDataSet(CounterSetInstance thisInst) { m_instance = thisInst; m_counters = new Dictionary// // // // // // // // // (); unsafe { if (m_instance.m_counterSet.m_provider == null) { throw new ArgumentException(SR.GetString(SR.Perflib_Argument_ProviderNotFound, m_instance.m_counterSet.m_providerGuid), "ProviderGuid"); } if (m_instance.m_counterSet.m_provider.m_hProvider.IsInvalid) { throw new InvalidOperationException(SR.GetString(SR.Perflib_InvalidOperation_NoActiveProvider, m_instance.m_counterSet.m_providerGuid)); } m_dataBlock = (byte *) Marshal.AllocHGlobal(m_instance.m_counterSet.m_idToCounter.Count * sizeof(Int64)); if (m_dataBlock == null) { throw new InsufficientMemoryException(SR.GetString(SR.Perflib_InsufficientMemory_InstanceCounterBlock, m_instance.m_counterSet.m_counterSet, m_instance.m_instName)); } Int32 CounterOffset = 0; foreach (KeyValuePair CounterDef in m_instance.m_counterSet.m_idToCounter) { CounterData thisCounterData = new CounterData((Int64 *) (m_dataBlock + CounterOffset * sizeof(Int64))); m_counters.Add(CounterDef.Key, thisCounterData); // ArgumentNullException - CounterName is NULL // ArgumentException - CounterName already exists. uint Status = UnsafeNativeMethods.PerfSetCounterRefValue( m_instance.m_counterSet.m_provider.m_hProvider, m_instance.m_nativeInst, (uint) CounterDef.Key, (void *) (m_dataBlock + CounterOffset * sizeof(Int64))); if (Status != (uint) UnsafeNativeMethods.ERROR_SUCCESS) { Dispose(true); // ERROR_INVALID_PARAMETER or ERROR_NOT_FOUND switch (Status) { case (uint) UnsafeNativeMethods.ERROR_NOT_FOUND: throw new InvalidOperationException(SR.GetString(SR.Perflib_InvalidOperation_CounterRefValue, m_instance.m_counterSet.m_counterSet, CounterDef.Key, m_instance.m_instName)); default: throw new Win32Exception((int) Status); } } CounterOffset ++; } } } // // [System.Security.SecurityCritical] public void Dispose() { Dispose(true); GC.SuppressFinalize(this); } //// // [System.Security.SecurityCritical] ~CounterSetInstanceCounterDataSet() { Dispose(false); } //// // [System.Security.SecurityCritical] private void Dispose(bool disposing) { if (Interlocked.Exchange(ref m_disposed, 1) == 0) { unsafe { if (m_dataBlock != null) { // Need to free allocated heap memory that is used to store all raw counter data. Marshal.FreeHGlobal((System.IntPtr)m_dataBlock); m_dataBlock = null; } } } } ///// // /// CounterId indexer to access specific CounterData object. /// /// CounterId that matches one CounterSet::AddCounter()call ///CounterData object with matched counterId public CounterData this[Int32 counterId] { get { if (m_disposed != 0) { return null; } try { return m_counters[counterId]; } catch (KeyNotFoundException) { return null; } catch { throw; } } } ////// CounterName indexer to access specific CounterData object. /// /// CounterName that matches one CounterSet::AddCounter() call ///CounterData object with matched counterName [SuppressMessage("Microsoft.Usage", "CA2208:InstantiateArgumentExceptionsCorrectly")] public CounterData this[String counterName] { get { if (counterName == null) { throw new ArgumentNullException("CounterName"); } if (counterName.Length == 0) { throw new ArgumentNullException("CounterName"); } if (m_disposed != 0) { return null; } try { Int32 CounterId = m_instance.m_counterSet.m_stringToId[counterName]; try { return m_counters[CounterId]; } catch (KeyNotFoundException) { return null; } catch { throw; } } catch (KeyNotFoundException) { return null; } catch { throw; } } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Diagnostics.PerformanceData { using System; using System.Threading; using System.Runtime.InteropServices; using System.ComponentModel; using System.Collections.Generic; using System.Diagnostics; using System.Diagnostics.CodeAnalysis; using Microsoft.Win32; ////// CounterData class is used to store actual raw counter data. It is the value element within /// CounterSetInstanceCounterDataSet, which is part of CounterSetInstance. /// [System.Security.Permissions.HostProtection(MayLeakOnAbort = true)] public sealed class CounterData { unsafe private Int64 * m_offset; ////// CounterData constructor /// /// counterId would come from CounterSet::AddCounter() parameter /// The memory location to store raw counter data //// [System.Security.SecurityCritical] unsafe internal CounterData(Int64 * pCounterData) { m_offset = pCounterData; * m_offset = 0; } ///// // /// Value property it used to query/update actual raw counter data. /// public Int64 Value { //// [System.Security.SecurityCritical] get { unsafe { return Interlocked.Read(ref (* m_offset)); } } //// // [System.Security.SecurityCritical] set { unsafe { Interlocked.Exchange(ref (* m_offset), value); } } } [System.Security.SecurityCritical] public void Increment() { unsafe { Interlocked.Increment (ref (*m_offset)); } } [System.Security.SecurityCritical] public void Decrement() { unsafe { Interlocked.Decrement (ref (*m_offset)); } } [System.Security.SecurityCritical] public void IncrementBy(Int64 value) { unsafe { Interlocked.Add (ref (*m_offset), value); } } ///// /// RawValue property it used to query/update actual raw counter data. /// This property is not thread-safe and should only be used /// for performance-critical single-threaded access. /// public Int64 RawValue { //// [System.Security.SecurityCritical] get { unsafe { return (* m_offset); } } //// // [System.Security.SecurityCritical] set { unsafe { * m_offset = value; } } } } ///// /// CounterSetInstanceCounterDataSet is part of CounterSetInstance class, and is used to store raw counter data /// for all counters added in CounterSet. /// [System.Security.Permissions.HostProtection(MayLeakOnAbort = true)] public sealed class CounterSetInstanceCounterDataSet : IDisposable { internal CounterSetInstance m_instance; private Dictionarym_counters; private Int32 m_disposed; unsafe internal byte * m_dataBlock; // // [System.Security.SecurityCritical] [SuppressMessage("Microsoft.Usage", "CA2208:InstantiateArgumentExceptionsCorrectly")] internal CounterSetInstanceCounterDataSet(CounterSetInstance thisInst) { m_instance = thisInst; m_counters = new Dictionary// // // // // // // // // (); unsafe { if (m_instance.m_counterSet.m_provider == null) { throw new ArgumentException(SR.GetString(SR.Perflib_Argument_ProviderNotFound, m_instance.m_counterSet.m_providerGuid), "ProviderGuid"); } if (m_instance.m_counterSet.m_provider.m_hProvider.IsInvalid) { throw new InvalidOperationException(SR.GetString(SR.Perflib_InvalidOperation_NoActiveProvider, m_instance.m_counterSet.m_providerGuid)); } m_dataBlock = (byte *) Marshal.AllocHGlobal(m_instance.m_counterSet.m_idToCounter.Count * sizeof(Int64)); if (m_dataBlock == null) { throw new InsufficientMemoryException(SR.GetString(SR.Perflib_InsufficientMemory_InstanceCounterBlock, m_instance.m_counterSet.m_counterSet, m_instance.m_instName)); } Int32 CounterOffset = 0; foreach (KeyValuePair CounterDef in m_instance.m_counterSet.m_idToCounter) { CounterData thisCounterData = new CounterData((Int64 *) (m_dataBlock + CounterOffset * sizeof(Int64))); m_counters.Add(CounterDef.Key, thisCounterData); // ArgumentNullException - CounterName is NULL // ArgumentException - CounterName already exists. uint Status = UnsafeNativeMethods.PerfSetCounterRefValue( m_instance.m_counterSet.m_provider.m_hProvider, m_instance.m_nativeInst, (uint) CounterDef.Key, (void *) (m_dataBlock + CounterOffset * sizeof(Int64))); if (Status != (uint) UnsafeNativeMethods.ERROR_SUCCESS) { Dispose(true); // ERROR_INVALID_PARAMETER or ERROR_NOT_FOUND switch (Status) { case (uint) UnsafeNativeMethods.ERROR_NOT_FOUND: throw new InvalidOperationException(SR.GetString(SR.Perflib_InvalidOperation_CounterRefValue, m_instance.m_counterSet.m_counterSet, CounterDef.Key, m_instance.m_instName)); default: throw new Win32Exception((int) Status); } } CounterOffset ++; } } } // // [System.Security.SecurityCritical] public void Dispose() { Dispose(true); GC.SuppressFinalize(this); } //// // [System.Security.SecurityCritical] ~CounterSetInstanceCounterDataSet() { Dispose(false); } //// // [System.Security.SecurityCritical] private void Dispose(bool disposing) { if (Interlocked.Exchange(ref m_disposed, 1) == 0) { unsafe { if (m_dataBlock != null) { // Need to free allocated heap memory that is used to store all raw counter data. Marshal.FreeHGlobal((System.IntPtr)m_dataBlock); m_dataBlock = null; } } } } ///// // /// CounterId indexer to access specific CounterData object. /// /// CounterId that matches one CounterSet::AddCounter()call ///CounterData object with matched counterId public CounterData this[Int32 counterId] { get { if (m_disposed != 0) { return null; } try { return m_counters[counterId]; } catch (KeyNotFoundException) { return null; } catch { throw; } } } ////// CounterName indexer to access specific CounterData object. /// /// CounterName that matches one CounterSet::AddCounter() call ///CounterData object with matched counterName [SuppressMessage("Microsoft.Usage", "CA2208:InstantiateArgumentExceptionsCorrectly")] public CounterData this[String counterName] { get { if (counterName == null) { throw new ArgumentNullException("CounterName"); } if (counterName.Length == 0) { throw new ArgumentNullException("CounterName"); } if (m_disposed != 0) { return null; } try { Int32 CounterId = m_instance.m_counterSet.m_stringToId[counterName]; try { return m_counters[CounterId]; } catch (KeyNotFoundException) { return null; } catch { throw; } } catch (KeyNotFoundException) { return null; } catch { throw; } } } } } // 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
- DataColumn.cs
- XmlDocument.cs
- ExpressionBuilderContext.cs
- UseAttributeSetsAction.cs
- AnnotationStore.cs
- StylusEventArgs.cs
- Label.cs
- FlowLayoutPanel.cs
- GenericsInstances.cs
- ExpressionEditor.cs
- BindingMAnagerBase.cs
- Page.cs
- SamlNameIdentifierClaimResource.cs
- DesignerCommandAdapter.cs
- HtmlButton.cs
- Control.cs
- Style.cs
- XmlReader.cs
- Constraint.cs
- GB18030Encoding.cs
- OptimizedTemplateContent.cs
- WebResourceAttribute.cs
- SHA512CryptoServiceProvider.cs
- SqlCacheDependencyDatabaseCollection.cs
- DataControlField.cs
- ConfigsHelper.cs
- login.cs
- FigureHelper.cs
- Button.cs
- _AutoWebProxyScriptHelper.cs
- EventProvider.cs
- ItemType.cs
- CodeConditionStatement.cs
- FixedDocumentSequencePaginator.cs
- GenericsInstances.cs
- Wizard.cs
- SimpleColumnProvider.cs
- followingsibling.cs
- RevocationPoint.cs
- XPathDocument.cs
- ResourceSet.cs
- ServiceHostingEnvironmentSection.cs
- OleServicesContext.cs
- MailWebEventProvider.cs
- Slider.cs
- FlowLayout.cs
- XmlWriterSettings.cs
- UriSection.cs
- ToolboxSnapDragDropEventArgs.cs
- RadioButtonStandardAdapter.cs
- ErrorInfoXmlDocument.cs
- EditorPartChrome.cs
- InfoCardBaseException.cs
- BitArray.cs
- FormsAuthentication.cs
- WmlLiteralTextAdapter.cs
- PackagePartCollection.cs
- SqlCacheDependencySection.cs
- SQLBinaryStorage.cs
- SamlAction.cs
- TypedTableGenerator.cs
- BinaryObjectInfo.cs
- XmlSchemaAnnotation.cs
- HtmlInputReset.cs
- Grid.cs
- CompiledRegexRunnerFactory.cs
- GlyphInfoList.cs
- LayoutEvent.cs
- SR.Designer.cs
- SparseMemoryStream.cs
- BindUriHelper.cs
- UserNameSecurityTokenParameters.cs
- BindStream.cs
- _NtlmClient.cs
- ExtentCqlBlock.cs
- BevelBitmapEffect.cs
- UnSafeCharBuffer.cs
- KeyConstraint.cs
- BinaryFormatterWriter.cs
- InputEventArgs.cs
- BamlLocalizationDictionary.cs
- OleDbCommand.cs
- EntryPointNotFoundException.cs
- Renderer.cs
- MSAAWinEventWrap.cs
- RuntimeVariablesExpression.cs
- WebDisplayNameAttribute.cs
- SparseMemoryStream.cs
- DiscoveryDocumentLinksPattern.cs
- DesignerWebPartChrome.cs
- XmlUnspecifiedAttribute.cs
- SpellerHighlightLayer.cs
- DesignerMetadata.cs
- AuthenticationManager.cs
- PolyBezierSegment.cs
- Section.cs
- ThrowOnMultipleAssignment.cs
- CommandManager.cs
- DataBindingExpressionBuilder.cs
- GraphicsContext.cs