Function parseCounterFile

bcachefs/get.go:327–367

(path string)

}

func parseCounterFile(path string) (CounterStats, error) {
	file, err := openIfExists(path)
	if err != nil || file == nil {
		return CounterStats{}, err
	}
	defer file.Close()

	var stats CounterStats
	var seenCreation bool
	var seenMount bool

	scanner := bufio.NewScanner(file)
	for scanner.Scan() {
		line := scanner.Text()
		if valueStr, ok := strings.CutPrefix(line, "since mount:"); ok {
			value, err := parseHumanReadableBytes(valueStr)
			if err != nil {
				return CounterStats{}, err
			}
			stats.SinceMount = value
			seenMount = true
			continue
		}
		if valueStr, ok := strings.CutPrefix(line, "since filesystem creation:"); ok {
			value, err := parseHumanReadableBytes(valueStr)
			if err != nil {
				return CounterStats{}, err
			}
			stats.SinceFilesystemCreation = value
			seenCreation = true
			continue
		}
	}
	if err := scanner.Err(); err != nil {
		return CounterStats{}, err
	}
	if !seenCreation && !seenMount {
		return CounterStats{}, fmt.Errorf("counter file format not recognized")
	}
	return stats, nil
}

func parseBtreeWriteStats(path string) (map[string]BtreeWriteStats, error) {
	file, err := openIfExists(path)