func parseBlkioValue()

in cgroup/blkio.go [256:293]

33 lines of code
8 McCabe index (conditional complexity)


func parseBlkioValue(line string) (blkioValue, error) {
	fields := strings.FieldsFunc(line, isColonOrSpace)
	if len(fields) != 3 && len(fields) != 4 {
		return blkioValue{}, ErrInvalidFormat
	}

	major, err := strconv.ParseUint(fields[0], 10, 64)
	if err != nil {
		return blkioValue{}, err
	}

	minor, err := strconv.ParseUint(fields[1], 10, 64)
	if err != nil {
		return blkioValue{}, err
	}

	var value uint64
	var operation string
	if len(fields) == 3 {
		value, err = parseUint([]byte(fields[2]))
		if err != nil {
			return blkioValue{}, err
		}
	} else {
		operation = strings.ToLower(fields[2])

		value, err = parseUint([]byte(fields[3]))
		if err != nil {
			return blkioValue{}, err
		}
	}

	return blkioValue{
		DeviceID:  DeviceID{major, minor},
		Operation: operation,
		Value:     value,
	}, nil
}