Struct DLManagedTensor 

#[repr(C)]
pub struct DLManagedTensor {
    pub dl_tensor: DLTensor,
    pub manager_ctx: *mut c_void,
    pub deleter: Option<unsafe extern "C" fn(self_: *mut DLManagedTensor)>,
}

C Tensor object, manage memory of DLTensor. This data structure is intended to facilitate the borrowing of DLTensor by another framework. It is not meant to transfer the tensor. When the borrowing framework doesn’t need the tensor, it should call the deleter to notify the host that the resource is no longer needed.

\note This data structure is used as Legacy DLManagedTensor in DLPack exchange and is deprecated after DLPack v0.8 Use DLManagedTensorVersioned instead. This data structure may get renamed or deleted in future versions.

\sa DLManagedTensorVersioned

Fields

dl_tensor: DLTensor

DLTensor which is being memory managed

manager_ctx: *mut c_void

the context of the original host framework of DLManagedTensor in which DLManagedTensor is used in the framework. It can also be NULL.

deleter: Option<unsafe extern "C" fn(self_: *mut DLManagedTensor)>

Destructor - this should be called to destruct the manager_ctx which backs the DLManagedTensor. It can be NULL if there is no way for the caller to provide a reasonable destructor. The destructor deletes the argument self as well.

Trait Implementations

impl Clone for DLManagedTensor

fn clone(&self) -> DLManagedTensor

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for DLManagedTensor

impl Debug for DLManagedTensor

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl ManagedTensorBase for DLManagedTensor

fn from_parts( tensor: DLTensor, manager_ctx: *mut c_void, deleter: Option<unsafe extern "C" fn(self_: *mut Self)>, ) -> Self

Constructs a managed tensor from its embedded tensor and ownership fields.

fn tensor(&self) -> &DLTensor

Returns the embedded tensor descriptor.

fn tensor_mut(&mut self) -> &mut DLTensor

Returns mutable access used while initializing the descriptor.

fn manager_ctx(&self) -> *mut c_void

Returns the producer-owned opaque context pointer.

fn deleter(&self) -> Option<unsafe extern "C" fn(self_: *mut Self)>

Returns the managed tensor deleter.

fn flags(&self) -> DlpackFlags

Returns versioned flags, or empty flags for the legacy ABI.

unsafe fn set_flags_unchecked(&mut self, _flags: DlpackFlags)

Applies DLPack flags to this managed tensor verbatim, including DlpackFlags::IS_COPIED.

unsafe fn drop_raw(ptr: *mut Self)

Drops a raw managed tensor pointer through its DLPack deleter.