for {
						select {
						case <-ctx.Done():
							return
						case v, ok := <-in:
							if !ok {
								return
							}
							input := h.NewRequest()
							_, err := input.UnmarshalMsg(v)
							if err != nil {
								gridLogOnceIf(ctx, err, err.Error())
							}
							PutByteBuffer(v)
							// Send input
							select {
							case <-ctx.Done():
								return

	switch m.Op {
	case OpMuxServerMsg:
		c.handleMuxServerMsg(ctx, m)
	case OpResponse:
		c.handleResponse(m)
	case OpMuxClientMsg:
		c.handleMuxClientMsg(ctx, m)
	case OpUnblockSrvMux:
		c.handleUnblockSrvMux(m)
	case OpUnblockClMux:
		c.handleUnblockClMux(m)
	case OpDisconnectServerMux:
		c.handleDisconnectServerMux(m)
	case OpDisconnectClientMux:

	return ssc != "" || rrsc != ""
}

// DefaultParityBlocks returns default parity blocks for 'drive' count
func DefaultParityBlocks(drive int) int {
	switch drive {
	case 1:
		return 0
	case 3, 2:
		return 1
	case 4, 5:
		return 2
	case 6, 7:
		return 3
	default:
		return 4
	}
}

// LookupConfig - lookup storage class config and override with valid environment settings if any.

//
// NewReader may try merge the given size, MD5 and SHA256 values
// into src - if src is a Reader - to avoid computing the same
// checksums multiple times.
// NewReader enforces S3 compatibility strictly by ensuring caller
// does not send more content than specified size.
func NewReader(ctx context.Context, src io.Reader, size int64, md5Hex, sha256Hex string, actualSize int64) (*Reader, error) {

	if len(in) == 1 {
		for {
			select {
			case <-ctxDone:
				return ctx.Err()
			case v, ok := <-in[0]:
				if !ok {
					return nil
				}
				select {
				case <-ctxDone:
					return ctx.Err()
				case out <- v:
				}
			}
		}
	}

	selectFrom := func(idx int) error {
		select {
		case <-ctxDone:
			return ctx.Err()
		case entry, ok := <-in[idx]:
			if !ok {

			// unconsumedTimer fires.
			select {
			// Check after a second
			case <-time.After(time.Second):
				h.mutex.Unlock()
				continue

			case <-h.ctx.Done():
				h.mutex.Unlock()
				// discard result and return.
				return errHealStopSignalled

			// Timeout if no results consumed for too long.
			case <-unconsumedTimer.C:
				h.mutex.Unlock()
				return errHealIdleTimeout
			}

		}
		if creds.AzSP.ClientSecret != "" {
			cfg.Azure.SPAuth.ClientSecret = creds.AzSP.ClientSecret
		}
	case madmin.GCS:
		if creds.CredsJSON == nil {
			return errTierMissingCredentials
		}
		cfg.GCS.Creds = base64.URLEncoding.EncodeToString(creds.CredsJSON)
	case madmin.MinIO:
		if creds.AccessKey == "" || creds.SecretKey == "" {
			return errTierMissingCredentials
		}
		cfg.MinIO.AccessKey = creds.AccessKey

	MaxSize      int64    // Return error if size is exceed.
	MetadataOnly bool     // Read as XL meta and truncate data.
	AbortOn404   bool     // Stop reading after first file not found.
	MaxResults   int      // Stop after this many successful results. <= 0 means all.
}

// ReadMultipleResp contains a single response from a ReadMultipleReq.
type ReadMultipleResp struct {

		// We are closing...
		return nil
	}

	select {
	case h.logCh <- entry:
	case <-ctx.Done():
		// return error only for context timedout.
		if errors.Is(ctx.Err(), context.DeadlineExceeded) {
			return ctx.Err()
		}
		return nil
	default:
		// log channel is full, do not wait and return
		// an error immediately to the caller
		atomic.AddInt64(&h.totalMessages, 1)

	TraceOutput io.Writer // Debug trace output

	httpClient   *http.Client
	url          *url.URL
	newAuthToken func(audience string) string

	sync.RWMutex // mutex for lastErr
	lastErr      error
	lastErrTime  time.Time
}

type restError string

func (e restError) Error() string {
	return string(e)
}

func (e restError) Timeout() bool {
	return true
}