static bool SampleFilter(ref ActivityScope scope)
{
if (scope.TraceId.ToString().EndsWith("00", StringComparison.OrdinalIgnoreCase))
{
return(true);
}
return(false);
}
internal void OnScopeStopped(ref ActivityScope activityScope)
{
// This array is immutable once assigned to _listeners
// TODO: If this is in a final implementation we'd want
// to confirm .NET gives us the memory model guarantees to
// do this without a lock or an explicit read barrier, but
// I this it does.
IActivityListener[] listeners = _listeners;
if (listeners == null)
{
return;
}
for (int i = 0; i < listeners.Length; i++)
{
listeners[i].ActivityScopeStopped(this, ref activityScope);
}
}
static void FourActivityWorkItem()
{
using (var scope = new ActivityScope(_httpIn, ParseActivityTraceId, incomingActivityId))
{
scope.AddTag("route", "/foo/bar");
scope.AddTag("usedid", "1239");
using (var scope2 = new ActivityScope(_fooBar))
{
scope2.AddTag("one", "1");
scope2.AddTag("two", "2");
using (var scope3 = new ActivityScope(_clientRequest1))
{
scope3.AddTag("one", "1");
scope3.AddTag("two", "2");
}
using (var scope4 = new ActivityScope(_clientRequest2))
{
scope4.AddTag("one", "1");
scope4.AddTag("two", "2");
}
}
}
}