Jo Shields 3c1f479b9d Imported Upstream version 4.0.0~alpha1
Former-commit-id: 806294f5ded97629b74c85c09952f2a74fe182d9
2015-04-07 09:35:12 +01:00

144 lines
5.6 KiB
C#

//------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//------------------------------------------------------------
namespace System.ServiceModel.Diagnostics
{
using System.Diagnostics;
using System.Globalization;
using System.Runtime;
static class PerformanceCountersFactory
{
static internal ServicePerformanceCountersBase CreateServiceCounters(ServiceHostBase serviceHost)
{
if (!CheckPermissions())
{
return null;
}
if (OSEnvironmentHelper.IsVistaOrGreater)
{
try
{
var counters = new ServicePerformanceCountersV2(serviceHost);
// Workaround Sys.Diag.PerformanceData problem:
// Ensure that all three categories are initialized so other processes can still
// expose endpoint/operation perf counters event if this one doesn't
EndpointPerformanceCountersV2.EnsureCounterSet();
OperationPerformanceCountersV2.EnsureCounterSet();
return counters;
}
#pragma warning suppress 56500 // covered by FxCOP
catch (Exception e)
{
if (Fx.IsFatal(e))
{
throw;
}
PerformanceCounters.Scope = PerformanceCounterScope.Off;
if (DiagnosticUtility.ShouldTraceError)
{
TraceUtility.TraceEvent(TraceEventType.Error,
TraceCode.PerformanceCountersFailedForService,
SR.GetString(SR.TraceCodePerformanceCountersFailedForService),
null, e);
}
return null;
}
}
return new ServicePerformanceCounters(serviceHost);
}
static internal EndpointPerformanceCountersBase CreateEndpointCounters(string service, string contract, string uri)
{
if (!CheckPermissions())
{
return null;
}
if (OSEnvironmentHelper.IsVistaOrGreater)
{
try
{
return new EndpointPerformanceCountersV2(service, contract, uri);
}
#pragma warning suppress 56500 // covered by FxCOP
catch (Exception e)
{
if (Fx.IsFatal(e))
{
throw;
}
PerformanceCounters.Scope = PerformanceCounterScope.Off;
if (DiagnosticUtility.ShouldTraceError)
{
TraceUtility.TraceEvent(TraceEventType.Error,
TraceCode.PerformanceCountersFailedForService,
SR.GetString(SR.TraceCodePerformanceCountersFailedForService),
null, e);
}
return null;
}
}
return new EndpointPerformanceCounters(service, contract, uri);
}
static internal OperationPerformanceCountersBase CreateOperationCounters(string service, string contract, string operationName, string uri)
{
if (!CheckPermissions())
{
return null;
}
if (OSEnvironmentHelper.IsVistaOrGreater)
{
try
{
return new OperationPerformanceCountersV2(service, contract, operationName, uri);
}
#pragma warning suppress 56500 // covered by FxCOP
catch (Exception e)
{
if (Fx.IsFatal(e))
{
throw;
}
PerformanceCounters.Scope = PerformanceCounterScope.Off;
if (DiagnosticUtility.ShouldTraceError)
{
TraceUtility.TraceEvent(TraceEventType.Error,
TraceCode.PerformanceCountersFailedForService,
SR.GetString(SR.TraceCodePerformanceCountersFailedForService),
null, e);
}
return null;
}
}
return new OperationPerformanceCounters(service, contract, operationName, uri);
}
/// <summary>
/// Returns true if we're running in full trust. Otherwise turns off performance counters and returns false.
/// </summary>
private static bool CheckPermissions()
{
// At this time (.net 4.5), performance counters require Unrestricted permissions to be created.
if (PartialTrustHelpers.AppDomainFullyTrusted)
{
return true;
}
PerformanceCounters.Scope = PerformanceCounterScope.Off;
if (DiagnosticUtility.ShouldTraceWarning)
{
TraceUtility.TraceEvent(TraceEventType.Warning,
TraceCode.PerformanceCountersFailedForService,
SR.GetString(SR.PartialTrustPerformanceCountersNotEnabled));
}
return false;
}
}
}