func (e Error) Unwrap() error { return e.cause }

// Error 'error' compatible method.
func (e Error) Error() string {
	if e.msg == "" {
		return "crypto: cause <nil>"
	}
	return e.msg
}

var (
	// ErrInvalidEncryptionMethod indicates that the specified SSE encryption method
	// is not supported.
	ErrInvalidEncryptionMethod = Errorf("The encryption method is not supported")

	ObjectReplicationAll
	ObjectRestoreAll
	ObjectTransitionAll
	ObjectScannerAll
	Everything
)

// The number of single names should not exceed 64.
// This will break masking. Use bit 63 as extension.
var _ = uint64(1 << objectSingleTypesEnd)

// Expand - returns expanded values of abbreviated event type.
func (name Name) Expand() []Name {
	switch name {

	case ObjectAccessedAll:
		return []Name{

	"encoding/gob"
	"io"
	"testing"
	"time"

	"github.com/tinylib/msgp/msgp"
)

func BenchmarkDecodeVolInfoMsgp(b *testing.B) {
	v := VolInfo{
		Name:    "uuid",
		Created: time.Now(),
	}
	var buf bytes.Buffer
	msgp.Encode(&buf, &v)
	rd := msgp.NewEndlessReader(buf.Bytes(), b)
	dc := msgp.NewReader(rd)
	b.Log("Size:", buf.Len(), "bytes")
	b.SetBytes(1)
	b.ReportAllocs()
	b.ResetTimer()

	// ETag (hex encoded md5sum) of empty string.
	emptyETag = "d41d8cd98f00b204e9800998ecf8427e"
)

// Global object layer mutex, used for safely updating object layer.
var globalObjLayerMutex sync.RWMutex

// Global object layer, only accessed by globalObjectAPI.
var globalObjectAPI ObjectLayer

type storageOpts struct {
	cleanUp     bool
	healthCheck bool
}

// Depending on the disk type network or local, initialize storage API.

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

package rest

import (
	"net/http"
	"net/http/httptrace"
	"sync/atomic"
	"time"
)

var globalStats = struct {
	errs uint64

	tcpDialErrs     uint64
	tcpDialCount    uint64
	tcpDialTotalDur uint64
}{}

// RPCStats holds information about the DHCP/TCP metrics and errors
type RPCStats struct {

		return false
	}

	writer.writer.(http.Flusher).Flush()
	return true
}

func (writer *messageWriter) start() {
	keepAliveTicker := time.NewTicker(1 * time.Second)
	var progressTicker *time.Ticker
	var progressTickerC <-chan time.Time
	if writer.getProgressFunc != nil {
		progressTicker = time.NewTicker(1 * time.Minute)
		progressTickerC = progressTicker.C
	}

	humanize "github.com/dustin/go-humanize"
	"github.com/minio/minio-go/v7/pkg/encrypt"
	"github.com/minio/minio/internal/crypto"
	xhttp "github.com/minio/minio/internal/http"
	"github.com/minio/sio"
)

var encryptRequestTests = []struct {
	header   map[string]string
	metadata map[string]string
}{
	{
		header: map[string]string{
			xhttp.AmzServerSideEncryptionCustomerAlgorithm: "AES256",

	var rquorum InsufficientWriteQuorum
	return errors.As(err, &rquorum)
}

// isErrObjectNotFound - Check if error type is ObjectNotFound.
func isErrObjectNotFound(err error) bool {
	var objNotFound ObjectNotFound
	return errors.As(err, &objNotFound)
}

// isErrVersionNotFound - Check if error type is VersionNotFound.
func isErrVersionNotFound(err error) bool {
	var versionNotFound VersionNotFound

	osMetricLstat
	osMetricRemove
	osMetricStat
	osMetricAccess
	osMetricCreate
	osMetricReadDirent
	osMetricFdatasync
	osMetricSync

	// .... add more

	osMetricLast
)

var globalOSMetrics osMetrics

func init() {
	// Inject metrics.
	ioutilx.OsOpenFile = OpenFile
	ioutilx.OpenFileDirectIO = OpenFileDirectIO
	ioutilx.OsOpen = Open
}

type osMetrics struct {

// to create Client objects configured for SHA-256 hashing.
var KafkaSHA256 scram.HashGeneratorFcn = sha256.New

// KafkaSHA512 is a function that returns a crypto/sha512 hasher and should be used
// to create Client objects configured for SHA-512 hashing.
var KafkaSHA512 scram.HashGeneratorFcn = sha512.New

// XDGSCRAMClient implements the client-side of an authentication