Struct ExternalMemory 

pub struct ExternalMemory { /* private fields */ }

Implementations

impl ExternalMemory

pub unsafe fn import_opaque_file_descriptor( fd: RawFd, size: usize, flags: ExternalMemoryFlags, ) -> Result<Self>

Imports an opaque file descriptor as CUDA external memory.

Safety

fd must reference a valid external memory object of size bytes. CUDA takes ownership of the descriptor on a successful import.

pub unsafe fn import_opaque_win32_handle( handle: *mut c_void, size: usize, flags: ExternalMemoryFlags, ) -> Result<Self>

Imports an opaque Win32 shared handle as CUDA external memory.

Safety

handle must be a valid shared handle for a memory object of size bytes and must remain valid according to CUDA’s external-memory import rules.

pub unsafe fn import_opaque_win32_name( name: *const c_void, size: usize, flags: ExternalMemoryFlags, ) -> Result<Self>

Imports an opaque named Win32 shared object as CUDA external memory.

Safety

name must point to a valid null-terminated Win32 object name for a memory object of size bytes and remain valid for the import call.

pub fn map_buffer<T: DeviceRepr>( &self, offset_bytes: usize, length: usize, ) -> Result<MappedBuffer<'_, T>>

pub const fn byte_len(&self) -> usize

pub const fn as_raw(&self) -> CUexternalMemory

pub unsafe fn from_raw(handle: CUexternalMemory, size: usize) -> Result<Self>

Takes ownership of a raw CUDA external-memory handle.

Safety

handle must be a valid CUexternalMemory that is not owned by any other wrapper, and size must match the imported memory object’s byte size so mapped ranges can be bounds-checked correctly.

pub fn into_raw(self) -> CUexternalMemory

Transfers ownership of the raw CUDA external-memory handle to the caller without destroying it.

The caller becomes responsible for eventually destroying the returned handle with cuDestroyExternalMemory.

Trait Implementations

impl Debug for ExternalMemory

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

Formats the value using the given formatter.

impl Drop for ExternalMemory

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.

impl Send for ExternalMemory

impl Sync for ExternalMemory