ActivityChanging()

void System.Diagnostics.Tracing.ActivityTracker.ActivityChanging ( AsyncLocalValueChangedArgs< ActivityInfo > args )

inlineprivate

Definition at line 373 of file ActivityTracker.cs.

    {
        ActivityInfo activityInfo = args.CurrentValue;
        ActivityInfo previousValue = args.PreviousValue;
        if (previousValue != null && previousValue.m_creator == activityInfo && (activityInfo == null || previousValue.m_activityIdToRestore != activityInfo.ActivityId))
        {
            EventSource.SetCurrentThreadActivityId(previousValue.m_activityIdToRestore);
            return;
        }
        while (activityInfo != null)
        {
            if (activityInfo.m_stopped == 0)
            {
                EventSource.SetCurrentThreadActivityId(activityInfo.ActivityId);
                return;
            }
            activityInfo = activityInfo.m_creator;
        }
        EventSource.SetCurrentThreadActivityId(Guid.Empty);
    }

References System.Diagnostics.Tracing.ActivityTracker.ActivityInfo.ActivityId, System.Threading.AsyncLocalValueChangedArgs< T >.CurrentValue, System.Guid.Empty, System.Diagnostics.Tracing.ActivityTracker.ActivityInfo.m_activityIdToRestore, System.Diagnostics.Tracing.ActivityTracker.ActivityInfo.m_creator, System.Diagnostics.Tracing.ActivityTracker.ActivityInfo.m_stopped, System.Threading.AsyncLocalValueChangedArgs< T >.PreviousValue, and System.Diagnostics.Tracing.EventSource.SetCurrentThreadActivityId().

Referenced by System.Diagnostics.Tracing.ActivityTracker.Enable().