public void WriteTraceSource(ref EventDescriptor eventDescriptor, string description, TracePayload payload)
{
string str = null;
int num = 0;
string empty;
if (base.TracingEnabled)
{
XPathNavigator xPathNavigator = null;
try
{
EtwDiagnosticTrace.GenerateLegacyTraceCode(ref eventDescriptor, out str, out num);
string str1 = EtwDiagnosticTrace.BuildTrace(ref eventDescriptor, description, payload, str);
XmlDocument xmlDocument = new XmlDocument();
xmlDocument.LoadXml(str1);
xPathNavigator = xmlDocument.CreateNavigator();
base.TraceSource.TraceData(TraceLevelHelper.GetTraceEventType(eventDescriptor.Level, eventDescriptor.Opcode), num, xPathNavigator);
if (base.CalledShutdown)
{
base.TraceSource.Flush();
}
}
catch (Exception exception1)
{
Exception exception = exception1;
if (!Fx.IsFatal(exception))
{
EtwDiagnosticTrace etwDiagnosticTrace = this;
if (xPathNavigator == null)
{
empty = string.Empty;
}
else
{
empty = xPathNavigator.ToString();
}
etwDiagnosticTrace.LogTraceFailure(empty, exception);
}
else
{
throw;
}
}
}
}