Function parseLoad

loadavg.go:43–62

Parse /proc loadavg and return 1m, 5m and 15m.

(loadavgBytes []byte)

// Parse /proc loadavg and return 1m, 5m and 15m.
func parseLoad(loadavgBytes []byte) (*LoadAvg, error) {
	loads := make([]float64, 3)
	parts := strings.Fields(string(loadavgBytes))
	if len(parts) < 3 {
		return nil, fmt.Errorf("%w: Malformed line %q", ErrFileParse, string(loadavgBytes))
	}

	var err error
	for i, load := range parts[0:3] {
		loads[i], err = strconv.ParseFloat(load, 64)
		if err != nil {
			return nil, fmt.Errorf("%w: Cannot parse load: %f: %w", ErrFileParse, loads[i], err)
		}
	}
	return &LoadAvg{
		Load1:  loads[0],
		Load5:  loads[1],
		Load15: loads[2],
	}, nil
}