/// <summary>
/// Creates the event descriptors array
/// </summary>
static void CreateEventDescriptors()
{
System.Runtime.Diagnostics.EventDescriptor[] descriptors = new System.Runtime.Diagnostics.EventDescriptor[] {
new System.Runtime.Diagnostics.EventDescriptor(62326, 0, (byte)TraceChannel.Debug, (byte)TraceEventLevel.Informational, (byte)TraceEventOpcode.Info, 0x9de, 0x1000000000000080)
};
ushort[] e2eEvents = new ushort[0];
FxTrace.UpdateEventDefinitions(descriptors, e2eEvents);
eventDescriptors = descriptors;
}
/// <summary>
/// Check if ETW tracing is enabled for the particular event
/// </summary>
/// <param name="eventIndex">The index of the event descriptor</param>
static bool IsEtwEventEnabled(int eventIndex)
{
if (FxTrace.Trace.IsEtwProviderEnabled)
{
EnsureEventDescriptors();
return(FxTrace.IsEventEnabled(eventIndex));
}
return(false);
}
private static void EnsureEventDescriptors()
{
if (object.ReferenceEquals(TD.eventDescriptors, null))
{
EventDescriptor[] eventDescriptors = new EventDescriptor[] { new EventDescriptor(0xf376, 0, 0x13, 4, 0, 0, 0x1000000000000000L) };
FxTrace.UpdateEventDefinitions(eventDescriptors);
TD.eventDescriptors = eventDescriptors;
}
}
internal static bool HttpHandlerPickedForUrlIsEnabled()
{
if (!FxTrace.ShouldTraceInformation)
{
return(false);
}
if (!FxTrace.ShouldTraceInformationToTraceSource)
{
return(FxTrace.IsEventEnabled(0));
}
return(true);
}
private static bool IsEtwEventEnabled(int eventIndex)
{
EnsureEventDescriptors();
return(FxTrace.IsEventEnabled(eventIndex));
}