Function getStatPSIFromFile

cgroup2/utils.go:538–574

(path string)

}

func getStatPSIFromFile(path string) *stats.PSIStats {
	f, err := os.Open(path)
	if err != nil {
		return nil
	}
	defer f.Close()

	psistats := &stats.PSIStats{}
	sc := bufio.NewScanner(f)
	for sc.Scan() {
		parts := strings.Fields(sc.Text())
		var pv *stats.PSIData
		switch parts[0] {
		case "some":
			psistats.Some = &stats.PSIData{}
			pv = psistats.Some
		case "full":
			psistats.Full = &stats.PSIData{}
			pv = psistats.Full
		}
		if pv != nil {
			err = parsePSIData(parts[1:], pv)
			if err != nil {
				log.L.WithError(err).Errorf("failed to read file %s", path)
				return nil
			}
		}
	}

	if err := sc.Err(); err != nil {
		if !errors.Is(err, unix.ENOTSUP) && !errors.Is(err, unix.EOPNOTSUPP) {
			log.L.WithError(err).Error("unable to parse PSI data")
		}
		return nil
	}
	return psistats
}

func parsePSIData(psi []string, data *stats.PSIData) error {
	for _, f := range psi {