Struct PlacementAcceptance 

#[non_exhaustive]
pub struct PlacementAcceptance { /* private fields */ }

A bitfield describing which memory classes a port can accept zero-copy.

Implementations

impl PlacementAcceptance

pub const fn empty() -> Self

Create an empty acceptance set.

pub const fn from_bits(bits: u32) -> Self

Construct from raw bits (advanced).

pub const fn bits(&self) -> &u32

Return the raw bits.

pub const fn is_empty(&self) -> bool

Return true if there are no accepted classes.

pub const fn union(self, other: Self) -> Self

Union (set OR).

pub const fn intersect(self, other: Self) -> Self

Intersection (set AND).

pub const fn contains(self, other: Self) -> bool

Superset test: does self include every class in other?

pub const fn host_all() -> Self

Create an acceptance set that includes all host classes.

pub const fn with_host(self) -> Self

Accept regular host memory.

pub const fn with_pinned_host(self) -> Self

Accept pinned host memory.

pub const fn with_device(self, ordinal: u8) -> Self

Accept a specific device ordinal (0..=15).

pub const fn try_with_device(self, ordinal: u8) -> Option<Self>

Like with_device but returns None if the ordinal is out of range.

pub const fn with_all_devices(self) -> Self

Accept all supported device ordinals (0..=15).

pub const fn with_shared(self) -> Self

Accept shared memory regions.

pub const fn accepts(&self, class: MemoryClass) -> bool

Test whether the given memory class is accepted without copy.

pub const fn exactly(class: MemoryClass) -> Self

Convenience: build an acceptance set that accepts exactly one class.

Trait Implementations

impl Clone for PlacementAcceptance

fn clone(&self) -> PlacementAcceptance

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PlacementAcceptance

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

Formats the value using the given formatter.

impl Default for PlacementAcceptance

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for PlacementAcceptance

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl Copy for PlacementAcceptance

impl Eq for PlacementAcceptance

impl StructuralPartialEq for PlacementAcceptance