if r == nil || r.closer == nil {
		return nil
	}
	r.closer()
	r.closer = nil
	r.creator = nil
	return nil
}

// metacacheBlockWriter collects blocks and provides a callback to store them.
type metacacheBlockWriter struct {
	wg           sync.WaitGroup
	streamErr    error
	blockEntries int
}

// newMetacacheBlockWriter provides a streaming block writer.

}

func (m *muxClient) addErrorNonBlockingClose(respHandler chan<- Response, err error) {
	m.respMu.Lock()
	defer m.respMu.Unlock()
	if !m.closed {
		m.respErr.Store(&err)
		// Do not block.
		select {
		case respHandler <- Response{Err: err}:
			xioutil.SafeClose(respHandler)
		default:
			go func() {
				respHandler <- Response{Err: err}

			gc = gm.Connection(gridHost)
			if gc == nil {
				bugLogIf(context.Background(), fmt.Errorf("gridHost %q not found for peer %s", gridHost, peer.String()), peer.String()+":gridHost")
				return nil
			}
			gridConn.Store(gc)
			return gc
		},
	}
}

// Wrapper to restClient.Call to handle network errors, in case of network error the connection is marked disconnected

	ANDW	$0x6006000060060, R27, R5                        // ERROR "cannot use REGTMP as source"
	STP	(R3, R4), 0x1234567(R27)                         // ERROR "REGTMP used in large offset store"
	LDP	0x1234567(R27), (R3, R4)                         // ERROR "REGTMP used in large offset load"
	STP	(R26, R27), 700(R2)                              // ERROR "cannot use REGTMP as source"

	consoleapi.Hostname = globalMinioConsoleHost

	if globalIsTLS {
		// If TLS certificates are provided enforce the HTTPS.
		server.EnabledListeners = []string{"https"}
		server.TLSPort = consolePort
		// Need to store tls-port, tls-host un config variables so secure.middleware can read from there
		consoleapi.TLSPort = globalMinioConsolePort
		consoleapi.Hostname = globalMinioConsoleHost
	}

	return server, nil
}

	// from a different networked call to validate the GetDiskID()
	return *client.diskID.Load(), nil
}

func (client *storageRESTClient) SetDiskID(id string) {
	client.diskID.Store(&id)
}

func (client *storageRESTClient) DiskInfo(ctx context.Context, opts DiskInfoOptions) (info DiskInfo, err error) {
	if !client.IsOnlineWS() {
		// make sure to check if the disk is offline, since the underlying

* * T1 = Z1*Z1 * T2 = Z2*Z2 * U1 = X1*T2 * H = X2*T1 * H = H-U1 * Z3 = Z1*Z2 * Z3 = Z3*H << store-out Z3 result reg.. could override Z1, if slices have same backing array * * S1 = Z2*T2 * S1 = Y1*S1 * R = Z1*T1 * R = Y2*R * R = R-S1 * * T1 = H*H * T2 = H*T1 * U1 = U1*T1 * * X3 = R*R * X3 = X3-T2 * T1 = 2*U1 * X3 = X3-T1 << store-out X3 result reg * * T2 = S1*T2 * Y3 = U1-X3 * Y3 = R*Y3 * Y3 = Y3-T2 << store-out Y3 result reg // X=Z1; Y=Z1; MUL; T- // T1 = Z1*Z1 // X- ; Y=T ; MUL; R=T // R = Z1*T1...

// getRemoteInstanceTransport contains a roundtripper for external (not peers) servers
var remoteInstanceTransport atomic.Value

func setRemoteInstanceTransport(tr http.RoundTripper) {
	remoteInstanceTransport.Store(tr)
}

func getRemoteInstanceTransport() http.RoundTripper {
	rt, ok := remoteInstanceTransport.Load().(http.RoundTripper)
	if ok {
		return rt
	}
	return nil
}

//
// Questions left to address:
// * Might at some point need a way for callers to provide their own Env.
// * Maybe add TF_TensorShape that encapsulates dimension info.
//
// Design decisions made:
// * Backing store for tensor memory has an associated deallocation
//   function.  This deallocation function will point to client code
//   for tensors populated by the client.  So the client can do things
//   like shadowing a numpy array.

	if meta.Format != formatBackendErasure && meta.Format != formatBackendErasureSingle {
		return "", fmt.Errorf(`found backend type %s, expected %s or %s - to migrate to a supported backend visit https://docs.min.io/community/minio-object-store/operations/deployments/baremetal-migrate-fs-gateway.html`, meta.Format, formatBackendErasure, formatBackendErasureSingle)
	}
	// Erasure backend found, proceed to detect version.
	format := &formatErasureVersionDetect{}