Struct PreemptGuardToken 

pub struct PreemptGuardToken(/* private fields */);

Token returned by the nested task-preemption guard service.

Implementations

impl PreemptGuardToken

pub const NONE: Self

Sentinel returned before the corresponding runtime object exists.

pub const unsafe fn from_raw(raw: usize) -> Self

Creates a handle from the runtime-owned opaque value.

Safety

A non-zero raw value must identify a live runtime-owned object or resource of this exact handle type. The caller must uphold all provenance, lifetime, pinning, aliasing, and ownership invariants required by operations that consume or dereference the handle. Use Self::NONE for the absent-handle sentinel.

use ax_task::runtime::cpu::PreemptGuardToken;
let _handle = PreemptGuardToken::from_raw(1);

pub const fn into_raw(self) -> usize

Returns the runtime-owned opaque value.

pub const fn is_none(self) -> bool

Returns whether this is the absent-handle sentinel.

Trait Implementations

impl Clone for PreemptGuardToken

fn clone(&self) -> PreemptGuardToken

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for PreemptGuardToken

impl Debug for PreemptGuardToken

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

Formats the value using the given formatter.

impl Eq for PreemptGuardToken

impl Hash for PreemptGuardToken

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 PreemptGuardToken

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for PreemptGuardToken