static internal void TraceTransfer(Guid newId)
{
Guid oldId = DiagnosticTrace.GetActivityId();
if (DiagnosticTrace.ShouldCorrelate && newId != oldId)
{
if (DiagnosticTrace.HaveListeners)
{
try
{
if (newId != oldId)
{
DiagnosticTrace.TraceSource.TraceTransfer(0, null, newId);
}
}
catch (OutOfMemoryException)
{
throw;
}
catch (StackOverflowException)
{
throw;
}
catch (ThreadAbortException)
{
throw;
}
catch (Exception e)
{
LogTraceFailure(null, e);
}
}
}
}
static internal void GetActivityId(ref Guid guid)
{
//If activity id propagation is disabled for performance, we return nothing avoiding CallContext access.
if (DiagnosticTrace.ShouldCorrelate)
{
guid = DiagnosticTrace.GetActivityId();
}
}
internal static Activity CreateActivity(Guid newGuid, bool emitTransfer)
{
Activity retval = null;
if (DiagnosticTrace.ShouldCorrelate &&
(newGuid != Guid.Empty) &&
(newGuid != DiagnosticTrace.GetActivityId()))
{
retval = new Activity(ref newGuid, emitTransfer);
}
return(retval);
}
private Activity(ref Guid newGuid, bool emitTransfer)
{
this.emitTransfer = emitTransfer;
if (DiagnosticTrace.ShouldCorrelate && (newGuid != Guid.Empty))
{
this.newGuid = newGuid;
this.oldGuid = DiagnosticTrace.GetActivityId();
if (this.oldGuid != newGuid)
{
this.mustDispose = true;
if (this.emitTransfer)
{
DiagnosticTrace.TraceTransfer(newGuid);
}
DiagnosticTrace.SetActivityId(newGuid);
}
}
}
