Function parseDeviceIOErrors

bcachefs/get.go:536–583

(path string)

}

func parseDeviceIOErrors(path string) (map[string]uint64, error) {
	file, err := openIfExists(path)
	if err != nil {
		return nil, err
	}
	if file == nil {
		return map[string]uint64{}, nil
	}
	defer file.Close()

	stats := make(map[string]uint64)
	scanner := bufio.NewScanner(file)
	inCreationSection := false

	for scanner.Scan() {
		line := scanner.Text()
		if strings.HasPrefix(line, "IO errors since filesystem creation") {
			inCreationSection = true
			continue
		}
		if strings.HasPrefix(line, "IO errors since ") {
			break
		}
		if !inCreationSection {
			continue
		}
		trimmed := strings.TrimSpace(line)
		if trimmed == "" {
			continue
		}
		parts := strings.SplitN(trimmed, ":", 2)
		if len(parts) != 2 {
			continue
		}
		errorType := strings.TrimSpace(parts[0])
		valueStr := strings.TrimSpace(parts[1])
		value, err := strconv.ParseUint(valueStr, 10, 64)
		if err != nil {
			return nil, err
		}
		stats[errorType] = value
	}

	if err := scanner.Err(); err != nil {
		return nil, err
	}
	return stats, nil
}

func openIfExists(path string) (*os.File, error) {
	file, err := os.Open(path)