Struct kn_cuda_sys::wrapper::mem::device::DevicePtr

pub struct DevicePtr { /* private fields */ }

A reference-counted pointer into a DeviceBuffer. The buffer cannot be constructed directly, instead it can only be created by allocating a new DevicePtr with DevicePtr::alloc.

The inner DeviceBuffer is automatically freed when there are no DevicePtr any more that refer to it. Since the memory may be shared all accessor methods are marked unsafe.

Cloning this type does not copy the underlying memory, but only increases the reference count.

Implementations

impl DevicePtr

pub fn alloc(device: CudaDevice, len_bytes: usize) -> Self

pub fn device(&self) -> CudaDevice

pub fn offset_bytes(self, offset: isize) -> DevicePtr

pub unsafe fn ptr(&self) -> *mut c_void

pub fn shared_count(&self) -> usize

The number of DevicePtr sharing the underlying buffer that are still alive.

pub unsafe fn copy_linear_from_host(&self, buffer: &[u8])

pub unsafe fn copy_linear_from_host_async( &self, buffer: &PinnedMem, stream: &CudaStream )

pub unsafe fn copy_linear_to_host(&self, buffer: &mut [u8])

pub unsafe fn copy_linear_to_host_async( &self, buffer: &mut PinnedMem, stream: &CudaStream )

pub unsafe fn copy_linear_from_device( &self, other: &DevicePtr, len_bytes: usize )

Trait Implementations

impl Clone for DevicePtr

fn clone(&self) -> DevicePtr

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for DevicePtr

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

Formats the value using the given formatter.

impl Hash for DevicePtr

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for DevicePtr

fn eq(&self, other: &DevicePtr) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for DevicePtr

impl StructuralPartialEq for DevicePtr