Struct IrqWaitToken 

pub struct IrqWaitToken<'cell> { /* private fields */ }

Published identity for one IRQ waiter registration generation.

A token remains attached while its cell owns the waiter. Once is_attached becomes false, the task may avoid or abort its park. It must then be consumed by detach before the backing registration or wake payload is reused.

Implementations

impl IrqWaitToken<'_>

pub const fn generation(&self) -> u64

Returns this one-shot registration generation.

pub fn is_attached(&self) -> bool

Returns whether the cell still owns this generation.

Once this becomes false, a waiter may safely avoid sleeping. It does not imply that an IRQ notifier has finished reading the wake payload; only the drain returned by Self::detach publishes that guarantee.

pub fn detach(self) -> IrqWaitDrain

Stops publication of this generation and enters its drain lifetime.

This operation never waits. If a notifier already removed the waiter, the returned drain observes that notifier until it publishes its claim release; IrqWaitDrain::finish performs that bounded wait. Hard-IRQ teardown must defer the drain to a task-context worker.

Trait Implementations

impl Debug for IrqWaitToken<'_>

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

Formats the value using the given formatter.