141 lines
4.2 KiB
C#
141 lines
4.2 KiB
C#
//------------------------------------------------------------
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//------------------------------------------------------------
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namespace System.ServiceModel.Diagnostics
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{
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using System.Diagnostics;
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using System.Runtime;
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using System.ServiceModel;
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internal class DefaultPerformanceCounters : PerformanceCountersBase
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{
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string instanceName;
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enum PerfCounters : int
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{
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Instances = 0,
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TotalCounters = Instances + 1
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}
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string[] perfCounterNames =
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{
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PerformanceCounterStrings.SERVICEMODELSERVICE.SInstances,
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};
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const int maxCounterLength = 64;
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const int hashLength = 2;
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[Flags]
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enum truncOptions : uint
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{
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NoBits = 0,
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service32 = 0x01,
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uri31 = 0x04
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}
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internal PerformanceCounter[] Counters { get; set; }
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internal override string InstanceName
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{
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get
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{
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return this.instanceName;
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}
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}
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internal override string[] CounterNames
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{
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get
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{
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return this.perfCounterNames;
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}
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}
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internal override int PerfCounterStart
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{
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get { return (int)PerfCounters.Instances; }
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}
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internal override int PerfCounterEnd
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{
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get { return (int)PerfCounters.TotalCounters; }
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}
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static internal string CreateFriendlyInstanceName(ServiceHostBase serviceHost)
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{
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// It is a shared instance across all services which have the default counter enabled
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return "_WCF_Admin";
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}
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internal DefaultPerformanceCounters(ServiceHostBase serviceHost)
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{
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this.instanceName = DefaultPerformanceCounters.CreateFriendlyInstanceName(serviceHost);
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this.Counters = new PerformanceCounter[(int)PerfCounters.TotalCounters];
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for (int i = 0; i < (int)PerfCounters.TotalCounters; i++)
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{
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try
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{
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PerformanceCounter counter = PerformanceCounters.GetDefaultPerformanceCounter(this.perfCounterNames[i], this.instanceName);
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if (counter != null)
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{
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this.Counters[i] = counter;
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}
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else
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{
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break;
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}
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}
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#pragma warning suppress 56500 // covered by FxCOP
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catch (Exception e)
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{
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if (Fx.IsFatal(e))
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{
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throw;
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}
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if (DiagnosticUtility.ShouldTraceError)
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{
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TraceUtility.TraceEvent(TraceEventType.Error, TraceCode.PerformanceCountersFailedForService,
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SR.GetString(SR.TraceCodePerformanceCountersFailedForService), null, e);
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}
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break;
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}
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}
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}
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internal override bool Initialized
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{
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get { return this.Counters != null; }
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}
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protected override void Dispose(bool disposing)
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{
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try
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{
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if (disposing)
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{
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if (PerformanceCounters.PerformanceCountersEnabled)
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{
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if (null != this.Counters)
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{
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for (int ctr = this.PerfCounterStart; ctr < this.PerfCounterEnd; ++ctr)
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{
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PerformanceCounter counter = this.Counters[ctr];
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if (counter != null)
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{
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PerformanceCounters.ReleasePerformanceCounter(ref counter);
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}
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this.Counters[ctr] = null;
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}
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this.Counters = null;
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}
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}
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}
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}
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finally
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{
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base.Dispose(disposing);
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}
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}
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}
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}
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