Function getStatFileContentUint64

cgroup2/utils.go:267–294

Gets uint64 parsed content of single value cgroup stat file

(filePath string)

// Gets uint64 parsed content of single value cgroup stat file
func getStatFileContentUint64(filePath string) uint64 {
	f, err := os.Open(filePath)
	if err != nil {
		return 0
	}
	defer f.Close()

	// We expect an unsigned 64 bit integer, or a "max" string
	// in some cases.
	buf := make([]byte, 32)
	n, err := f.Read(buf)
	if err != nil {
		return 0
	}

	trimmed := strings.TrimSpace(string(buf[:n]))
	if trimmed == "max" {
		return math.MaxUint64
	}

	res, err := parseUint(trimmed, 10, 64)
	if err != nil {
		log.L.Errorf("unable to parse %q as a uint from Cgroup file %q", trimmed, filePath)
		return res
	}

	return res
}

// getKVStatsFileContentUint64 gets uint64 parsed content of key-value cgroup stat file
func getKVStatsFileContentUint64(filePath string, propertyName string) uint64 {