Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / Core / System / Diagnostics / PerformanceData / CounterSet.cs / 1407647 / CounterSet.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 System.Security.Permissions; using System.Security; using Microsoft.Win32; ////// CounterSet is equivalent to "Counter Object" in native performance counter terminology, /// or "Counter Category" in previous framework releases. It defines a abstract grouping of /// counters, where each counter defines measurable matrix. In the new performance counter /// infrastructure, CounterSet is defined by GUID called CounterSetGuid, and is hosted inside /// provider application, which is also defined by another GUID called ProviderGuid. /// [System.Security.Permissions.HostProtection(MayLeakOnAbort = true)] public class CounterSet : IDisposable { private static readonly bool s_platformNotSupported = (Environment.OSVersion.Version.Major < 6); internal PerfProvider m_provider; internal Guid m_providerGuid; internal Guid m_counterSet; internal CounterSetInstanceType m_instType; private readonly Object m_lockObject; private bool m_instanceCreated; internal Dictionarym_stringToId; internal Dictionary m_idToCounter; /// /// CounterSet constructor. /// /// ProviderGuid identifies the provider application. A provider identified by ProviderGuid could publish several CounterSets defined by different CounterSetGuids /// CounterSetGuid identifies the specific CounterSet. CounterSetGuid should be unique. /// One of defined CounterSetInstanceType values //// [System.Security.SecurityCritical] [PermissionSet(SecurityAction.Demand, Unrestricted = true)] [SuppressMessage("Microsoft.Naming", "CA1720:IdentifiersShouldNotContainTypeNames", MessageId = "guid", Justification = "Approved")] public CounterSet(Guid providerGuid, Guid counterSetGuid, CounterSetInstanceType instanceType) { // Check only the mayor version, only support Windows Vista and later. // if (s_platformNotSupported) { throw new System.PlatformNotSupportedException(SR.GetString(SR.Perflib_PlatformNotSupported)); } if (! PerfProviderCollection.ValidateCounterSetInstanceType(instanceType)) { throw new ArgumentException(SR.GetString(SR.Perflib_Argument_InvalidCounterSetInstanceType, instanceType), "instanceType"); } m_providerGuid = providerGuid; m_counterSet = counterSetGuid; m_instType = instanceType; PerfProviderCollection.RegisterCounterSet(m_counterSet); m_provider = PerfProviderCollection.QueryProvider(m_providerGuid); m_lockObject = new Object(); m_stringToId = new Dictionary// (); m_idToCounter = new Dictionary (); } public void Dispose() { Dispose(true); GC.SuppressFinalize(this); } ~CounterSet() { Dispose(false); } // // [System.Security.SecuritySafeCritical] protected virtual void Dispose(bool disposing) { lock(this) { PerfProviderCollection.UnregisterCounterSet(m_counterSet); if (m_instanceCreated) { if (m_provider != null) { lock (m_lockObject) { if (m_provider != null) { Interlocked.Decrement(ref m_provider.m_counterSet); if (m_provider.m_counterSet <= 0) { PerfProviderCollection.RemoveProvider(m_providerGuid); } m_provider = null; } } } } } } ///// /// Add non-displayable new counter to CounterSet; that is, perfmon would not display the counter. /// /// CounterId uniquely identifies the counter within CounterSet /// One of defined CounterType values [SuppressMessage("Microsoft.Usage", "CA2208:InstantiateArgumentExceptionsCorrectly")] public void AddCounter(Int32 counterId, CounterType counterType) { if (m_provider == null) { throw new InvalidOperationException(SR.GetString(SR.Perflib_InvalidOperation_NoActiveProvider, m_providerGuid)); } if (! PerfProviderCollection.ValidateCounterType(counterType)) { throw new ArgumentException(SR.GetString(SR.Perflib_Argument_InvalidCounterType, counterType), "counterType"); } if (m_instanceCreated) { throw new InvalidOperationException(SR.GetString(SR.Perflib_InvalidOperation_AddCounterAfterInstance, m_counterSet)); } lock (m_lockObject) { if (m_instanceCreated) { throw new InvalidOperationException(SR.GetString(SR.Perflib_InvalidOperation_AddCounterAfterInstance, m_counterSet)); } if (m_idToCounter.ContainsKey(counterId)) { throw new ArgumentException(SR.GetString(SR.Perflib_Argument_CounterAlreadyExists, counterId, m_counterSet), "CounterId"); } m_idToCounter.Add(counterId, counterType); } } ////// Add named new counter to CounterSet. /// /// CounterId uniquely identifies the counter within CounterSet /// One of defined CounterType values /// This is friendly name to help provider developers as indexer. and it might not match what is displayed in counter consumption applications lie perfmon. [SuppressMessage("Microsoft.Usage", "CA2208:InstantiateArgumentExceptionsCorrectly")] public void AddCounter(Int32 counterId, CounterType counterType, String counterName) { if (counterName == null) { throw new ArgumentNullException("CounterName"); } if (counterName.Length == 0) { throw new ArgumentException(SR.GetString(SR.Perflib_Argument_EmptyCounterName), "counterName"); } if (! PerfProviderCollection.ValidateCounterType(counterType)) { throw new ArgumentException(SR.GetString(SR.Perflib_Argument_InvalidCounterType, counterType), "counterType"); } if (m_provider == null) { throw new InvalidOperationException(SR.GetString(SR.Perflib_InvalidOperation_NoActiveProvider, m_providerGuid)); } if (m_instanceCreated) { throw new InvalidOperationException(SR.GetString(SR.Perflib_InvalidOperation_AddCounterAfterInstance, m_counterSet)); } lock (m_lockObject) { if (m_instanceCreated) { throw new InvalidOperationException(SR.GetString(SR.Perflib_InvalidOperation_AddCounterAfterInstance, m_counterSet)); } if (m_stringToId.ContainsKey(counterName)) { throw new ArgumentException(SR.GetString(SR.Perflib_Argument_CounterNameAlreadyExists, counterName, m_counterSet), "CounterName"); } if (m_idToCounter.ContainsKey(counterId)) { throw new ArgumentException(SR.GetString(SR.Perflib_Argument_CounterAlreadyExists, counterId, m_counterSet), "CounterId"); } m_stringToId.Add(counterName, counterId); m_idToCounter.Add(counterId, counterType); } } ////// Create instances of the CounterSet. Created CounterSetInstance identifies active identity and tracks raw counter data for that identity. /// /// Friendly name identifies the instance. InstanceName would be shown in counter consumption applications like perfmon. ///CounterSetInstance object //// [System.Security.SecurityCritical] [PermissionSet(SecurityAction.Demand, Unrestricted = true)] [SuppressMessage("Microsoft.Usage", "CA2208:InstantiateArgumentExceptionsCorrectly")] public CounterSetInstance CreateCounterSetInstance(String instanceName) { if (instanceName == null) { throw new ArgumentNullException("instanceName"); } if (instanceName.Length == 0) { throw new ArgumentException(SR.GetString(SR.Perflib_Argument_EmptyInstanceName), "instanceName"); } if (m_provider == null) { throw new InvalidOperationException(SR.GetString(SR.Perflib_InvalidOperation_NoActiveProvider, m_providerGuid)); } if (! m_instanceCreated) { lock (m_lockObject) { if (! m_instanceCreated) { if (m_provider == null) { throw new ArgumentException(SR.GetString(SR.Perflib_Argument_ProviderNotFound, m_providerGuid), "ProviderGuid"); } if (m_provider.m_hProvider.IsInvalid) { throw new InvalidOperationException(SR.GetString(SR.Perflib_InvalidOperation_NoActiveProvider, m_providerGuid)); } if (m_idToCounter.Count == 0) { throw new InvalidOperationException(SR.GetString(SR.Perflib_InvalidOperation_CounterSetContainsNoCounter, m_counterSet)); } uint Status = (uint) UnsafeNativeMethods.ERROR_SUCCESS; unsafe { uint CounterSetInfoSize = (uint) sizeof(UnsafeNativeMethods.PerfCounterSetInfoStruct) + (uint) m_idToCounter.Count * (uint) sizeof(UnsafeNativeMethods.PerfCounterInfoStruct); uint CounterSetInfoUsed = 0; byte * CounterSetBuffer = stackalloc byte[(int)CounterSetInfoSize]; if (CounterSetBuffer == null) { throw new InsufficientMemoryException(SR.GetString(SR.Perflib_InsufficientMemory_CounterSetTemplate, m_counterSet, CounterSetInfoSize)); } UnsafeNativeMethods.PerfCounterSetInfoStruct * CounterSetInfo; UnsafeNativeMethods.PerfCounterInfoStruct * CounterInfo; uint CurrentCounter = 0; uint CurrentOffset = 0; CounterSetInfo = (UnsafeNativeMethods.PerfCounterSetInfoStruct *) CounterSetBuffer; CounterSetInfo->CounterSetGuid = m_counterSet; CounterSetInfo->ProviderGuid = m_providerGuid; CounterSetInfo->NumCounters = (uint) m_idToCounter.Count; CounterSetInfo->InstanceType = (uint) m_instType; foreach (KeyValuePair// // // // // // // // CounterDef in m_idToCounter) { CounterSetInfoUsed = (uint)sizeof(UnsafeNativeMethods.PerfCounterSetInfoStruct) + (uint)CurrentCounter * (uint)sizeof(UnsafeNativeMethods.PerfCounterInfoStruct); if (CounterSetInfoUsed < CounterSetInfoSize) { CounterInfo = (UnsafeNativeMethods.PerfCounterInfoStruct *) (CounterSetBuffer + CounterSetInfoUsed); CounterInfo->CounterId = (uint) CounterDef.Key; CounterInfo->CounterType = (uint) CounterDef.Value; CounterInfo->Attrib = 0x0000000000000001; // PERF_ATTRIB_BY_REFERENCE CounterInfo->Size = (uint) sizeof(void*); // always use pointer size CounterInfo->DetailLevel = 100; // PERF_DETAIL_NOVICE CounterInfo->Scale = 0; // Default scale CounterInfo->Offset = CurrentOffset; CurrentOffset += CounterInfo->Size; } CurrentCounter++; } Status = UnsafeNativeMethods.PerfSetCounterSetInfo(m_provider.m_hProvider, CounterSetInfo, CounterSetInfoSize); // ERROR_INVALID_PARAMETER, ERROR_ALREADY_EXISTS, ERROR_NOT_ENOUGH_MEMORY, ERROR_OUTOFMEMORY if (Status != (uint) UnsafeNativeMethods.ERROR_SUCCESS) { switch (Status) { case (uint) UnsafeNativeMethods.ERROR_ALREADY_EXISTS: throw new ArgumentException(SR.GetString(SR.Perflib_Argument_CounterSetAlreadyRegister, m_counterSet), "CounterSetGuid"); default: throw new Win32Exception((int) Status); } } Interlocked.Increment(ref m_provider.m_counterSet); } m_instanceCreated = true; } } } CounterSetInstance thisInst = new CounterSetInstance(this, instanceName); return thisInst; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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