def continued(self, snapshot: 'Snapshot'):
if snapshot is None:
return None
if not snapshot.is_from_current(self) and snapshot.is_valid():
ref = SegmentRef.build_ref(snapshot)
span = self.active_span()
span.refs.append(ref)
self.segment.relate(ID(ref.trace_id))
self._correlation.update(snapshot.correlation)
def extract(self, carrier: 'Carrier') -> 'Span':
Span.extract(self, carrier)
if carrier is None or not carrier.is_valid:
return self
ref = SegmentRef(carrier=carrier)
if ref not in self.refs:
self.refs.append(ref)
return self