IAsyncResult BeginGetContext(bool startListening)
{
EventTraceActivity eventTraceActivity = null;
if (FxTrace.Trace.IsEnd2EndActivityTracingEnabled)
{
eventTraceActivity = EventTraceActivity.GetFromThreadOrCreate(true);
if (TD.HttpGetContextStartIsEnabled())
{
TD.HttpGetContextStart(eventTraceActivity);
}
}
while (true)
{
Exception unexpectedException = null;
try
{
try
{
if (ExecutionContext.IsFlowSuppressed())
{
return(this.BeginGetContextCore(eventTraceActivity));
}
else
{
using (ExecutionContext.SuppressFlow())
{
return(this.BeginGetContextCore(eventTraceActivity));
}
}
}
catch (HttpListenerException e)
{
if (!this.HandleHttpException(e))
{
throw;
}
}
}
catch (Exception e)
{
if (Fx.IsFatal(e))
{
throw;
}
if (startListening)
{
// Since we're under a call to StartListening(), just throw the exception up the stack.
throw;
}
unexpectedException = e;
}
if (unexpectedException != null)
{
this.Fault(unexpectedException);
return(null);
}
}
}