func()

in v1storage/storage.go [782:810]

• 26 lines of code
• 6 McCabe index (conditional complexity)

func (s *MemorySeriesStorage) fpsForLabelMatchers(
	from, through model.Time,
	matchers ...*metric.LabelMatcher,
) (map[model.Fingerprint]struct{}, error) {
	candidateFPs, matchersToCheck, err := s.candidateFPsForLabelMatchers(matchers...)
	if err != nil {
		return nil, err
	}

FPLoop:
	for fp := range candidateFPs {
		s.fpLocker.Lock(fp)
		met, _, ok := s.metricForRange(fp, from, through)
		s.fpLocker.Unlock(fp)

		if !ok {
			delete(candidateFPs, fp)
			continue FPLoop
		}

		for _, m := range matchersToCheck {
			if !m.Match(met[m.Name]) {
				delete(candidateFPs, fp)
				continue FPLoop
			}
		}
	}
	return candidateFPs, nil
}