// tiers.
type allTierStats struct {
	Tiers map[string]tierStats `msg:"ts"`
}

func newAllTierStats() *allTierStats {
	return &allTierStats{
		Tiers: make(map[string]tierStats),
	}
}

func (ats *allTierStats) addSizes(tiers map[string]tierStats) {
	for tier, st := range tiers {
		ats.Tiers[tier] = ats.Tiers[tier].add(st)
	}
}

func (ats *allTierStats) merge(other *allTierStats) {
	for tier, st := range other.Tiers {

	// RetCompliance - compliance mode.
	RetCompliance RetMode = "COMPLIANCE"
)

// Valid - returns if retention mode is valid
func (r RetMode) Valid() bool {
	switch r {
	case RetGovernance, RetCompliance:
		return true
	}
	return false
}

func parseRetMode(modeStr string) (mode RetMode) {
	switch strings.ToUpper(modeStr) {
	case "GOVERNANCE":
		mode = RetGovernance
	case "COMPLIANCE":

	// idempotent.
	g.once.Do(func() {
		for i := len(g.cleanUpFns) - 1; i >= 0; i-- {
			g.cleanUpFns[i]()
		}
	})
	return nil
}

// compressionIndexEncrypter returns a function that will read data from input,
// encrypt it using the provided key and return the result.
func compressionIndexEncrypter(key crypto.ObjectKey, input func() []byte) func() []byte {
	var data []byte
	var fetched bool

		DefaultKey: c.defaultKeyID,
		Details:    st,
	}, nil
}

// IsLocal returns true if the KMS is a local implementation
func (c *kesClient) IsLocal() bool {
	return env.IsSet(EnvKMSSecretKey)
}

// List returns an array of local KMS Names
func (c *kesClient) List() []kes.KeyInfo {
	var kmsSecret []kes.KeyInfo
	envKMSSecretKey := env.Get(EnvKMSSecretKey, "")

	setIndex  int
	poolIndex int

	// getDisks returns list of storageAPIs.
	getDisks func() []StorageAPI

	// getLockers returns list of remote and local lockers.
	getLockers func() ([]dsync.NetLocker, string)

	// getEndpoints returns list of endpoint belonging this set.
	// some may be local and some remote.
	getEndpoints func() []Endpoint

	// getEndpoints returns list of endpoint strings belonging this set.

}

func BenchmarkCompareBytesBigUnaligned(b *testing.B) {
	for i := 1; i < 8; i++ {
		b.Run(fmt.Sprintf("offset=%d", i), func(b *testing.B) {
			benchmarkCompareBytesBigUnaligned(b, i)
		})
	}
}

func benchmarkCompareBytesBigBothUnaligned(b *testing.B, offset int) {
	b.StopTimer()
	pattern := []byte("Hello Gophers!")
	b1 := make([]byte, 0, 1<<20+len(pattern))
	for len(b1) < 1<<20 {

	sync.RWMutex
	initialized bool
	metadataMap map[string]BucketMetadata
}

// Count returns number of bucket metadata map entries.
func (sys *BucketMetadataSys) Count() int {
	sys.RLock()
	defer sys.RUnlock()

	return len(sys.metadataMap)
}

// Remove bucket metadata from memory.
func (sys *BucketMetadataSys) Remove(buckets ...string) {
	sys.Lock()
	for _, bucket := range buckets {
		delete(sys.metadataMap, bucket)

//
// /////////////////////////////////////////////////////////////////////
func errExpressionTooLong(err error) *s3Error {
	return &s3Error{
		code:       "ExpressionTooLong",
		message:    "The SQL expression is too long: The maximum byte-length for the SQL expression is 256 KB.",
		statusCode: 400,
		cause:      err,
	}
}

func errColumnTooLong(err error) *s3Error {
	return &s3Error{
		code:       "ColumnTooLong",

func (z *Int) Len() int {
	z.doinit()
	return int(C.mpz_sizeinbase(&z.i[0], 2))
}

// Set sets z = x and returns z.
func (z *Int) Set(x *Int) *Int {
	z.doinit()
	C.mpz_set(&z.i[0], &x.i[0])
	return z
}

// SetBytes interprets b as the bytes of a big-endian integer
// and sets z to that value.
func (z *Int) SetBytes(b []byte) *Int {
	z.doinit()

		}
		err = reader.Close()
		if err != nil {
			log.Infof("file: %s is not closed: %v", path, err)
		}
		warningsByFilename[path] = warning
	}
	processDirectory := func(directory string, processFile func(string)) error {
		err := filepath.Walk(directory, func(path string, info os.FileInfo, err error) error {
			if err != nil {
				return err
			}

			if info.IsDir() {
				return nil
			}