)

var errConfigNotFound = errors.New("config file not found")

func readConfigWithMetadata(ctx context.Context, store objectIO, configFile string, opts ObjectOptions) ([]byte, ObjectInfo, error) {
	r, err := store.GetObjectNInfo(ctx, minioMetaBucket, configFile, nil, http.Header{}, opts)
	if err != nil {
		if isErrObjectNotFound(err) {
			return nil, ObjectInfo{}, errConfigNotFound
		}

		return nil, ObjectInfo{}, err
	}

	loadNodesUpDown := func(ctx context.Context) (v nodesOnline, err error) {
		v.Online, v.Offline = globalNotificationSys.GetPeerOnlineCount()
		return
	}
	return cachevalue.NewFromFunc(1*time.Minute,
		cachevalue.Opts{ReturnLastGood: true},
		loadNodesUpDown)
}

type driveIOStatMetrics struct {
	readsPerSec    float64
	readsKBPerSec  float64
	readsAwait     float64
	writesPerSec   float64
	writesKBPerSec float64

func newStorageAPI(endpoint Endpoint, opts storageOpts) (storage StorageAPI, err error) {
	if endpoint.IsLocal {
		storage, err := newXLStorage(endpoint, opts.cleanUp)
		if err != nil {
			return nil, err
		}
		return newXLStorageDiskIDCheck(storage, opts.healthCheck), nil
	}

	return newStorageRESTClient(endpoint, opts.healthCheck, globalGrid.Load())

			info.Buckets[bucket] = bms
		}
	}

	if opts.Users && opts.Groups && opts.Policies && !opts.Buckets {
		// serialize SiteReplicationMetaInfo calls - if data in cache is within
		// healing interval, avoid fetching IAM data again from disk.
		if metaInfo, ok := c.getSRCachedIAMInfo(); ok {
			return metaInfo, nil
		}
	}
	if opts.Policies || opts.Entity == madmin.SRPolicyEntity {

func (client *peerRESTClient) SpeedTest(ctx context.Context, opts speedTestOpts) (SpeedTestResult, error) {
	values := make(url.Values)
	values.Set(peerRESTSize, strconv.Itoa(opts.objectSize))
	values.Set(peerRESTConcurrent, strconv.Itoa(opts.concurrency))
	values.Set(peerRESTDuration, opts.duration.String())
	values.Set(peerRESTStorageClass, opts.storageClass)
	values.Set(peerRESTBucket, opts.bucketName)

	for i, test := range getDefaultOptsTests {
		opts, err := getDefaultOpts(test.headers, test.copySource, test.metadata)
		if test.err != err {
			t.Errorf("Case %d: expected err: %v , actual err: %v", i, test.err, err)
		}
		if err == nil {
			if opts.ServerSideEncryption == nil && test.encryptionType != "" {
				t.Errorf("Case %d: expected opts to be of %v encryption type", i, test.encryptionType)
			}

	}
	gopts := WarmBackendGetOpts{}

	// get correct offsets for object
	if off >= 0 && length >= 0 {
		gopts.startOffset = off
		gopts.length = length
	}

	timeTierAction := auditTierActions(ctx, oi.TransitionedObject.Tier, length)
	reader, err := tgtClient.Get(ctx, oi.TransitionedObject.Name, remoteVersionID(oi.TransitionedObject.VersionID), gopts)
	if err != nil {
		return nil, err
	}
	closer := func() {

		return
	}

	ctx, cancel := context.WithTimeout(ctx, globalAPIConfig.getClusterDeadline())
	defer cancel()

	opts := HealthOptions{
		Maintenance:    r.Form.Get("maintenance") == "true",
		DeploymentType: r.Form.Get("deployment-type"),
	}
	result := objLayer.Health(ctx, opts)
	w.Header().Set(xhttp.MinIOWriteQuorum, strconv.Itoa(result.WriteQuorum))

}

func veeamSOSAPIHeadObject(ctx context.Context, bucket, object string, opts ObjectOptions) (ObjectInfo, error) {
	gr, err := veeamSOSAPIGetObject(ctx, bucket, object, nil, opts)
	if gr != nil {
		gr.Close()
		return gr.ObjInfo, nil
	}
	return ObjectInfo{}, err
}

func veeamSOSAPIGetObject(ctx context.Context, bucket, object string, rs *HTTPRangeSpec, opts ObjectOptions) (gr *GetObjectReader, err error) {
	var buf []byte

// not all run!).
func NewGetObjectReader(rs *HTTPRangeSpec, oi ObjectInfo, opts ObjectOptions, h http.Header) (
	fn ObjReaderFn, off, length int64, err error,
) {
	if opts.CheckPrecondFn != nil && opts.CheckPrecondFn(oi) {
		return nil, 0, 0, PreConditionFailed{}
	}

	if rs == nil && opts.PartNumber > 0 {
		rs = partNumberToRangeSpec(oi, opts.PartNumber)
	}

	_, isEncrypted := crypto.IsEncrypted(oi.UserDefined)