Function UptimeFromFile

pkg/uptime/common.go:28–39

UptimeFromFile reads system uptime information from filepath and returns the number of seconds since last system boot.

(filepath string)

// UptimeFromFile reads system uptime information from filepath and returns
// the number of seconds since last system boot.
func UptimeFromFile(filepath string) (int64, error) {
	data, err := os.ReadFile(filepath)
	if err != nil {
		return 0, fmt.Errorf("not able to read %s: %w", filepath, err)
	}

	uptime, err := strconv.ParseFloat(strings.Split(string(data), " ")[0], 64)
	if err != nil {
		return 0, fmt.Errorf("not able to parse %s to int64: %w", filepath, err)
	}
	return int64(uptime), nil
}