var prefixUsageCache = cachevalue.New[map[string]uint64]()

// loadPrefixUsageFromBackend returns prefix usages found in passed buckets
//
//	e.g.:  /testbucket/prefix => 355601334
func loadPrefixUsageFromBackend(ctx context.Context, objAPI ObjectLayer, bucket string) (map[string]uint64, error) {
	z, ok := objAPI.(*erasureServerPools)
	if !ok {
		// Prefix usage is empty
		return map[string]uint64{}, nil
	}

	cache := dataUsageCache{}

		return nil
	}

	var (
		clusterSize               uint64
		clusterBuckets            uint64
		clusterObjectsCount       uint64
		clusterVersionsCount      uint64
		clusterDeleteMarkersCount uint64
	)

	clusterObjectSizesHistogram := map[string]uint64{}
	clusterVersionsHistogram := map[string]uint64{}
	for _, usage := range dataUsageInfo.BucketsUsage {
		clusterBuckets++

	err = syscall.Statfs(path, &s)
	if err != nil {
		return Info{}, err
	}
	reservedBlocks := uint64(s.F_bfree) - uint64(s.F_bavail)
	info = Info{
		Total:  uint64(s.F_bsize) * (uint64(s.F_blocks) - reservedBlocks),
		Free:   uint64(s.F_bsize) * uint64(s.F_bavail),
		Files:  uint64(s.F_files),
		Ffree:  uint64(s.F_ffree),
		FSType: getFSType(s.F_fstypename[:]),
	}
	if info.Free > info.Total {

	}

	var numHealers uint64

	if numCores := uint64(runtime.GOMAXPROCS(0)); info.NRRequests > numCores {
		numHealers = numCores / 4
	} else {
		numHealers = info.NRRequests / 4
	}
	if numHealers < 4 {
		numHealers = 4
	}
	// allow overriding this value as well..
	if v := globalHealConfig.GetWorkers(); v > 0 {
		numHealers = uint64(v)
	}

	Children dataUsageHashMap
	// These fields do no include any children.
	Size     int64
	Objects  uint64
	ObjSizes sizeHistogram
}

//msgp:tuple dataUsageEntryV5
type dataUsageEntryV5 struct {
	Children dataUsageHashMap
	// These fields do no include any children.
	Size      int64
	Objects   uint64
	Versions  uint64 // Versions that are not delete markers.
	ObjSizes  sizeHistogram
	Compacted bool
}

func GetTotalCapacity(diskInfo []madmin.Disk) (capacity uint64) {
	for _, disk := range diskInfo {
		capacity += disk.TotalSpace
	}
	return capacity
}

// GetTotalUsableCapacity gets the total usable capacity in the cluster.
func GetTotalUsableCapacity(diskInfo []madmin.Disk, s StorageInfo) (capacity uint64) {
	for _, disk := range diskInfo {
		// Ignore invalid.

	for _, f := range fields {
		checkSchemaField(t, user, f, func(f *schema.Field) {})
	}
}

type (
	ID      int64
	INT     int
	INT8    int8
	INT16   int16
	INT32   int32
	INT64   int64
	UINT    uint
	UINT8   uint8
	UINT16  uint16
	UINT32  uint32
	UINT64  uint64
	FLOAT32 float32
	FLOAT64 float64
	BOOL    bool
	STRING  string
	TIME    time.Time
	BYTES   []byte

pkg p1, const StrConst = "foo"
pkg p1, const StrConst ideal-string
pkg p1, func Bar(int8, int16, int64)
pkg p1, func Bar1(int8, int16, int64) uint64
pkg p1, func Bar2(int8, int16, int64) (uint8, uint64)
pkg p1, func BarE() Error
pkg p1, func Now() Time
pkg p1, func PlainFunc(int, int, string) (*B, error)
pkg p1, func TakesFunc(func(int) int)
pkg p1, method (*B) JustOnB()
pkg p1, method (*B) OnBothTandBPtr()
pkg p1, method (*Embedded) OnEmbedded()

	}
	err = rc.Close()
	if err != nil {
		t.Fatal("closing:", err)
	}
	if size+int64(len("END\n")) >= 1<<32-1 {
		if got, want := f0.UncompressedSize, uint32(uint32max); got != want {
			t.Errorf("UncompressedSize %#x, want %#x", got, want)
		}
	}

	if got, want := f0.UncompressedSize64, uint64(size)+uint64(len(end)); got != want {
		t.Errorf("UncompressedSize64 %#x, want %#x", got, want)
	}

	return buf

// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

import "syscall"

func direntNamlen(dirent *syscall.Dirent) (uint64, error) {
	return uint64(dirent.Namlen), nil