// Helps set up devices for unit tests.
class DeviceSetup {
 public:
  void AddDevicesAndSetUp(
      const std::vector<std::string>& device_names,
      const std::optional<FunctionDef>& fdef = std::nullopt);
  Device* GetDevice(const string& device_name);
  FunctionLibraryRuntime* flr() { return flr_; }

 private:
  FunctionLibraryRuntime* flr_;
  std::unique_ptr<DeviceMgr> device_mgr_;
  std::unique_ptr<FunctionLibraryDefinition> lib_def_;

      TF_GRAPH_DEF_VERSION, lib_def_.get(), opts,
      /*default_thread_pool=*/nullptr, /*cluster_flr=*/nullptr);
  flr_ = pflr_->GetFLR("/job:localhost/replica:0/task:0/cpu:0");
}

Device* DeviceSetup::GetDevice(const string& device_name) {
  if (device_mgr_ == nullptr) {
    return nullptr;
  }

  string full_device_name = absl::StrCat(
      "/job:localhost/replica:0/task:0/device:", device_name, ":0");
  Device* device;

	err := ioctlPtr(fd, _HIDIOCGRAWUNIQ, unsafe.Pointer(&value[0]))
	return ByteSliceToString(value[:]), err
}

// IoctlIfreq performs an ioctl using an Ifreq structure for input and/or
// output. See the netdevice(7) man page for details.
func IoctlIfreq(fd int, req uint, value *Ifreq) error {
	// It is possible we will add more fields to *Ifreq itself later to prevent
	// misuse, so pass the raw *ifreq directly.

    void setBuildInvocationUsage() {
        this.usageType = DeprecatedFeatureUsage.Type.BUILD_INVOCATION;
    }

    void setSummary(String summary) {
        this.summary = summary;
    }

    void setAdvice(String advice) {
        this.advice = advice;
    }

    void setDeprecationTimeline(DeprecationTimeline deprecationTimeline) {
        this.deprecationTimeline = deprecationTimeline;
    }

    rewriter.replaceOp(op_to_replace, ValueRange({fused_op}));
    return success();
  }
};

const char kDeviceAttr[] = "device";
const char kDeviceGpu[] = "GPU";

std::optional<std::string> GetDevice(mlir::Operation *op) {
  mlir::StringAttr device = op->getAttrOfType<mlir::StringAttr>(kDeviceAttr);
  if (!device || device.getValue().empty()) {
    return std::nullopt;
  }

// Name returns the interface name associated with the Ifreq.
func (ifr *Ifreq) Name() string {
	return ByteSliceToString(ifr.raw.Ifrn[:])
}

// According to netdevice(7), only AF_INET addresses are returned for numerous
// sockaddr ioctls. For convenience, we expose these as Inet4Addr since the Port
// field and other data is always empty.

      execute_launch.getLoc(), llvm::ArrayRef<Type>{}, reformat_operands);
  WrapOpInLaunch(&builder, execute_launch.getLoc(), reformat_op,
                 execute_launch.getDevice());

  // Build the replicated unformat op after the loop. First prepare building the
  // replicate op.
  llvm::SmallVector<std::pair<ValueRange, Type>, 8> unformat_replicate_operands;

		}
		// Call SetUpDevice if blockVolumeMapper implements CustomBlockVolumeMapper
		if customBlockVolumeMapper, ok := blockVolumeMapper.(volume.CustomBlockVolumeMapper); ok && actualStateOfWorld.GetDeviceMountState(volumeToMount.VolumeName) != DeviceGloballyMounted {
			var mapErr error
			stagingPath, mapErr = customBlockVolumeMapper.SetUpDevice()
			if mapErr != nil {

  // CHECK: tf_mlrt.await [[result_future]]
  %0 = "tf.Recv"() {__op_key = 0: i32, device = "/device:CPU:0", tensor_name = "tensor", send_device = "/device:CPU:0", send_device_incarnation = 0, recv_device = "/device:CPU:0"} : () -> tensor<f32>

	*localVolume
	readOnly bool
}

var _ volume.BlockVolumeMapper = &localVolumeMapper{}
var _ volume.CustomBlockVolumeMapper = &localVolumeMapper{}

// SetUpDevice prepares the volume to the node by the plugin specific way.
func (m *localVolumeMapper) SetUpDevice() (string, error) {
	return "", nil
}

// MapPodDevice provides physical device path for the local PV.
func (m *localVolumeMapper) MapPodDevice() (string, error) {