Struct HostAllocator 

pub struct HostAllocator;

Host memory from the global allocator.

This is intentionally eager-only: it implements no optional capability.

Trait Implementations

impl Clone for HostAllocator

fn clone(&self) -> HostAllocator

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for HostAllocator

impl Debug for HostAllocator

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

Formats the value using the given formatter.

impl Default for HostAllocator

fn default() -> HostAllocator

Returns the “default value” for a type.

impl DeviceAllocator for HostAllocator

fn allocate( &self, bytes: usize, align: usize, ) -> Result<NonNull<u8>, MemoryError>

Take bytes aligned to align.

unsafe fn deallocate(&self, ptr: NonNull<u8>, bytes: usize, align: usize)

Give back a whole allocation returned by this allocator or by the VirtualBacking capability discovered from this allocator.

fn device(&self) -> DeviceKey

unsafe fn deallocate_with_unmapped( &self, ptr: NonNull<u8>, bytes: usize, align: usize, ) -> u64

Give back a whole allocation and report bytes whose global mapping reference transitioned to unmapped.

unsafe fn release( &self, ptr: NonNull<u8>, bytes: usize, align: usize, ) -> AllocationReleaseOutcome

Give back a whole allocation and report a structured outcome.

fn commits_on_demand(&self) -> bool

Whether this allocator maps physical memory lazily and charges a governor as each physical commitment is made.

fn as_virtual_backing(&self) -> Option<&dyn VirtualBacking>

Discover lazy reserve/commit/decommit support from this selected allocator reference.

fn as_shared_mapping(&self) -> Option<&dyn SharedMapping>

Discover shared physical mapping support independently from virtual backing support.