// Enabling this will make cache sharing more likely and cause less IO,
	// but may cause additional latency to some calls.
	metacacheSharePrefix = false
)

//go:generate msgp -file $GOFILE -unexported

// metacache contains a tracked cache entry.
type metacache struct {
	// do not re-arrange the struct this struct has been ordered to use less
	// space - if you do so please run https://github.com/orijtech/structslop

	// 	}
	// }

	check := func(exp, got madmin.LockEntries) (int, bool) {
		if len(exp) != len(got) {
			return 0, false
		}
		sort.Slice(exp, byResourceUID{exp}.Less)
		sort.Slice(got, byResourceUID{got}.Less)
		// printEntries(exp)
		// printEntries(got)
		for i, e := range exp {
			if !e.Timestamp.Equal(got[i].Timestamp) {
				return i, false
			}

## List of Amazon S3 API's not supported on MinIO

We found the following APIs to be redundant or less useful outside of AWS S3. If you have a different view on any of the APIs we missed, please consider opening a [GitHub issue](https://github.com/minio/minio/issues) with relevant details on why MinIO must implement them.

	errMetaCode := checkMetaHeaders(extractedSignedHeaders, r)
	if errMetaCode != ErrNone {
		return errMetaCode
	}

	// If the host which signed the request is slightly ahead in time (by less than globalMaxSkewTime) the
	// request should still be allowed.
	if pSignValues.Date.After(UTCNow().Add(globalMaxSkewTime)) {
		return ErrRequestNotReadyYet
	}

		cacheDuration = defaultCacheDuration
	}
	if cacheDuration < time.Second {
		logger.LogOnceIf(ctx, errors.New("cache duration is less than 1s, using default of 10s"), "refresh-kms-master-key")
		cacheDuration = defaultCacheDuration
	}
	timer := time.NewTimer(cacheDuration)
	defer timer.Stop()

	for {
		select {
		case <-ctx.Done():

				}, w)
			}

			// fallback only when set.
			for {
				fd := fallback(werr)
				if fd == nil {
					break
				}
				// This fallback is only set when
				// askDisks is less than total
				// number of disks per set.
				werr = fd.WalkDir(ctx, WalkDirOptions{
					Limit:          opts.perDiskLimit,
					Bucket:         opts.bucket,
					BaseDir:        opts.path,

		// clients detect malformed certificates during testing instead of e.g.
		// a self-signed certificate that works while a comparable certificate
		// issued by a trusted CA fails due to the MinIO server being less strict
		// w.r.t. key usage verification.
		//
		// Basically, MinIO is more consistent (from a client perspective) when
		// we verify the key usage all the time.
		var validKeyUsage bool

	if !opts.NoAuditLog {
		auditObjectErasureSet(ctx, object, &er)
	}

	data := r.Reader
	// Validate input data size and it can never be less than zero.
	if data.Size() < -1 {
		bugLogIf(ctx, errInvalidArgument, logger.ErrorKind)
		return pi, toObjectErr(errInvalidArgument)
	}

	// Read lock for upload id.

	}
}

func sizeTagToString(tag int) string {
	switch tag {
	case sizeLessThan1KiB:
		return "LESS_THAN_1_KiB"
	case sizeLessThan1MiB:
		return "LESS_THAN_1_MiB"
	case sizeLessThan10MiB:
		return "LESS_THAN_10_MiB"
	case sizeLessThan100MiB:
		return "LESS_THAN_100_MiB"
	case sizeLessThan1GiB:
		return "LESS_THAN_1_GiB"
	case sizeGreaterThan1GiB:
		return "GREATER_THAN_1_GiB"
	default:
		return "unknown"
	}

	                    </Rule>`,
			expectedErr: errInvalidRuleStatus,
		},
		{ // Rule with negative values for ObjectSizeLessThan
			inputXML: `<Rule>
				<ID>negative-obj-size-less-than</ID>
				<Filter><ObjectSizeLessThan>-1</ObjectSizeLessThan></Filter>
				<Expiration>
					<Days>365</Days>
				</Expiration>
                            <Status>Enabled</Status>
	                    </Rule>`,