Struct CompletionSlot 

pub struct CompletionSlot { /* private fields */ }

One-shot completion flag with optional async waker notification.

Reset before starting DMA, signal from the transfer-complete ISR.

Implementations

impl CompletionSlot

pub const fn new() -> Self

Create a cleared completion slot.

pub fn reset(&self)

Clear the slot before kicking off a new DMA transfer.

pub fn signal(&self)

Mark complete and wake any registered async task.

Safe to call from interrupt context.

impl CompletionSlot

pub fn is_signaled(&self) -> bool

Returns true after signal until the next reset.

pub fn poll_wait(&self, cx: &mut Context<'_>) -> Poll<()>

Poll for completion, registering cx’s waker when still pending.

Trait Implementations

impl Default for CompletionSlot

fn default() -> Self

Returns the “default value” for a type.