Struct kernel_guard::NoPreemptIrqSave

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

A guard that disables/enables both kernel preemption and local IRQs around the critical section.

When entering the critical section, it disables kernel preemption first, followed by local IRQs. When leaving the critical section, it re-enables local IRQs first, followed by kernel preemption.

Implementations

impl NoPreemptIrqSave

pub fn new() -> Self

Creates a new NoPreemptIrqSave guard.

Trait Implementations

impl BaseGuard for NoPreemptIrqSave

type State = usize

The saved state when entering the critical section.

fn acquire() -> Self::State

Something that must be done before entering the critical section.

fn release(state: Self::State)

Something that must be done after leaving the critical section.

impl Default for NoPreemptIrqSave

fn default() -> Self

Returns the “default value” for a type.

impl Drop for NoPreemptIrqSave

fn drop(&mut self)

Executes the destructor for this type.