"sync"
	"time"

	"github.com/minio/pkg/v2/sync/errgroup"
)

func (er erasureObjects) getOnlineDisks() (newDisks []StorageAPI) {
	disks := er.getDisks()
	var wg sync.WaitGroup
	var mu sync.Mutex
	r := rand.New(rand.NewSource(time.Now().UnixNano()))
	for _, i := range r.Perm(len(disks)) {
		i := i
		wg.Add(1)
		go func() {
			defer wg.Done()
			if disks[i] == nil {
				return
			}

func newHCClient() *madmin.AnonymousClient {
	clnt, e := madmin.NewAnonymousClientNoEndpoint()
	if e != nil {
		bugLogIf(GlobalContext, errors.New("Unable to initialize health check client"))
		return nil
	}
	clnt.SetCustomTransport(globalRemoteTargetTransport)
	return clnt
}

// heartBeat performs liveness check on remote endpoints.

		ModTime:     time.Now().Add(-31 * 24 * time.Hour),
		Size:        100 << 20,
		VersionID:   uuid.New().String(),
		IsLatest:    true,
		NumVersions: 4,
	}
	delMarker := ObjectInfo{
		Name:         "foo-deleted",
		ModTime:      time.Now().Add(-61 * 24 * time.Hour),
		Size:         0,
		VersionID:    uuid.New().String(),
		IsLatest:     true,
		DeleteMarker: true,
		NumVersions:  4,
	}

			// Now we swap in a new.
			newAcc := &AccElem{}
			old := e.cached.Swap(newAcc)
			var a AccElem
			a.Size = atomic.LoadInt64(&old.Size)
			a.Total = atomic.LoadInt64(&old.Total)
			a.N = atomic.LoadInt64(&old.N)
			e.mu.Lock()
			e.lastMinuteLatency.addAll(t-1, a)
			e.mu.Unlock()
			acc = newAcc
		} else {
			// We may be able to grab the new accumulator by yielding.
			runtime.Gosched()

	// Active decommission canceler
	decommissionCancelers []context.CancelFunc

	s3Peer *S3PeerSys
}

func (z *erasureServerPools) SinglePool() bool {
	return len(z.serverPools) == 1
}

// Initialize new pool of erasure sets.
func newErasureServerPools(ctx context.Context, endpointServerPools EndpointServerPools) (ObjectLayer, error) {
	var (
		deploymentID       string
		commonParityDrives int
		err                error

			versionID = mustGetUUID()
			fi.IsLatest = true // we are creating a new version so this is latest.
		}
	}

	modTime = UTCNow() // We only preserve modTime if dstOpts.MTime is true.
	// in all other cases mtime is latest.

	fi.VersionID = versionID // set any new versionID we might have created
	fi.ModTime = modTime     // set modTime for the new versionID
	if !dstOpts.MTime.IsZero() {
		modTime = dstOpts.MTime

	ErrInvalidRequest
	ErrTransitionStorageClassNotFoundError
	// MinIO storage class error codes
	ErrInvalidStorageClass
	ErrBackendDown
	// Add new extended error codes here.
	// Please open a https://github.com/minio/minio/issues before adding
	// new error codes here.

	ErrMalformedJSON
	ErrAdminNoSuchUser
	ErrAdminNoSuchUserLDAPWarn
	ErrAdminLDAPExpectedLoginName
	ErrAdminNoSuchGroup

## List of users to be created after minio install
##
users:
  ## Username, password and policy to be assigned to the user
  ## Default policies are [readonly|readwrite|writeonly|consoleAdmin|diagnostics]
  ## Add new policies as explained here https://min.io/docs/minio/kubernetes/upstream/administration/identity-access-management.html#access-management
  ## NOTE: this will fail if LDAP is enabled in your MinIO deployment

		switch {
		case chkSums["CRC32"] != "":
			OA.Checksum = new(objectAttributesChecksum)
			OA.Checksum.ChecksumCRC32 = strings.Split(chkSums["CRC32"], "-")[0]
		case chkSums["CRC32C"] != "":
			OA.Checksum = new(objectAttributesChecksum)
			OA.Checksum.ChecksumCRC32C = strings.Split(chkSums["CRC32C"], "-")[0]
		case chkSums["SHA256"] != "":
			OA.Checksum = new(objectAttributesChecksum)

		}
	}

	path := filepath.Join(w.opts.Directory, w.opts.FileNameFunc())
	f, err := newFile(path)
	if err != nil {
		return fmt.Errorf("unable to create new file at %v: %w", path, err)
	}

	w.f = f

	return nil
}

// NewDir creates a new concurrency safe Writer which performs log rotation.
func NewDir(opts Options) (io.WriteCloser, error) {
	if err := os.MkdirAll(opts.Directory, os.ModePerm); err != nil {