field.NewValuePool.Put(values[idx])
	}
}

// ScanMode scan data mode
type ScanMode uint8

// scan modes
const (
	ScanInitialized         ScanMode = 1 << 0 // 1
	ScanUpdate              ScanMode = 1 << 1 // 2
	ScanOnConflictDoNothing ScanMode = 1 << 2 // 4
)

// Scan scan rows into db statement
func Scan(rows Rows, db *DB, mode ScanMode) {
	var (
		columns, _          = rows.Columns()

			globalScannerMetrics.setCycle(&cycleInfo)

			bgHealInfo := readBackgroundHealInfo(ctx, objAPI)
			scanMode := getCycleScanMode(cycleInfo.current, bgHealInfo.BitrotStartCycle, bgHealInfo.BitrotStartTime)
			if bgHealInfo.CurrentScanMode != scanMode {
				newHealInfo := bgHealInfo
				newHealInfo.CurrentScanMode = scanMode
				if scanMode == madmin.HealDeepScan {
					newHealInfo.BitrotStartTime = time.Now().UTC()

			var result healEntryResult
			fivs, err := entry.fileInfoVersions(bucket)
			if err != nil {
				res, err := er.HealObject(ctx, bucket, encodedEntryName, "",
					madmin.HealOpts{
						ScanMode: scanMode,
						Remove:   healDeleteDangling,
					})
				if err != nil {
					if isErrObjectNotFound(err) || isErrVersionNotFound(err) {
						// queueing happens across namespace, ignore

			if err := healEntry(bucket, entry, scanMode); err != nil {
				cancel()
			}
		},
		partial: func(entries metaCacheEntries, _ []error) {
			entry, ok := entries.resolve(&resolver)
			if !ok {
				// check if we can get one entry at least
				// proceed to heal nonetheless.
				entry, _ = entries.firstFound()
			}

			if err := healEntry(bucket, *entry, scanMode); err != nil {
				cancel()
				return
			}

}

func (d *naughtyDisk) NSScanner(ctx context.Context, cache dataUsageCache, updates chan<- dataUsageEntry, scanMode madmin.HealScanMode, weSleep func() bool) (info dataUsageCache, err error) {
	if err := d.calcError(); err != nil {
		return info, err
	}
	return d.disk.NSScanner(ctx, cache, updates, scanMode, weSleep)
}

func (d *naughtyDisk) DiskInfo(ctx context.Context, opts DiskInfoOptions) (info DiskInfo, err error) {

		bucket:    source.bucket,
		object:    source.object,
		versionID: source.versionID,
		opts:      h.settings,
	}
	if source.opts != nil {
		task.opts = *source.opts
	} else {
		task.opts.ScanMode = madmin.HealNormalScan
	}

	h.countScanned(healType)

	if source.noWait {
		select {
		case globalBackgroundHealRoutine.tasks <- task:
			if serverDebugLog {

//     a not-found error or a hash-mismatch error.
func disksWithAllParts(ctx context.Context, onlineDisks []StorageAPI, partsMetadata []FileInfo,
	errs []error, latestMeta FileInfo, filterByETag bool, bucket, object string,
	scanMode madmin.HealScanMode,
) (availableDisks []StorageAPI, dataErrsByDisk map[int][]int, dataErrsByPart map[int][]int) {
	availableDisks = make([]StorageAPI, len(onlineDisks))

func (client *storageRESTClient) NSScanner(ctx context.Context, cache dataUsageCache, updates chan<- dataUsageEntry, scanMode madmin.HealScanMode, _ func() bool) (dataUsageCache, error) {
	defer xioutil.SafeClose(updates)

	st, err := storageNSScannerRPC.Call(ctx, client.gridConn, &nsScannerOptions{
		DiskID:   *client.diskID.Load(),
		ScanMode: int(scanMode),
		Cache:    &cache,
	})
	if err != nil {
		return cache, toStorageErr(err)
	}

		{},
		{mgmtBucket: "bucket"},
		{mgmtBucket: "bucket", mgmtPrefix: "objprefix"},
	}

	// Body is always valid - we do not test JSON decoding.
	body := `{"recursive": false, "dryRun": true, "remove": false, "scanMode": 0}`

	// Test all combinations!
	for pIdx, params := range qParamsArr {
		for vIdx, vars := range varsArr {
			_, err := extractHealInitParams(vars, params, bytes.NewReader([]byte(body)))
			isErrCase := false

	NewNSLock(bucket string, objects ...string) RWLocker

	// Storage operations.
	Shutdown(context.Context) error
	NSScanner(ctx context.Context, updates chan<- DataUsageInfo, wantCycle uint32, scanMode madmin.HealScanMode) error
	BackendInfo() madmin.BackendInfo
	Legacy() bool // Only returns true for deployments which use CRCMOD as its object distribution algorithm.
	StorageInfo(ctx context.Context, metrics bool) StorageInfo