Struct NotifyWaiters 

pub struct NotifyWaiters { /* private fields */ }

Per-order waiter system.

Fixed arenas use a single Notify-based FIFO (order 0 only). Buddy arenas use per-order mutex queues with CAS-arbitrated oneshot delivery and 4-factor scoring to prevent starvation.

Implementations

impl NotifyWaiters

pub fn new(num_orders: usize) -> Self

Create a waiter set with the given number of buddy orders.

Fixed arenas use num_orders = 1 (only the fixed slot is used). Buddy arenas use num_orders = max_order + 1.

Trait Implementations

impl BuddyWaiter for NotifyWaiters

type Registration = BuddyRegistration

Future returned when a waiter registers interest.

fn register(&self, order: usize) -> BuddyRegistration

Register a waiter at the given allocation order.

fn wake(&self, freed_order: usize)

Wake the best-scoring waiter after a block at freed_order becomes available.

impl Clone for NotifyWaiters

fn clone(&self) -> NotifyWaiters

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Waiter for NotifyWaiters

type Registration = NotifyRegistration

Future returned when a waiter registers interest in allocation progress.

fn register(&self) -> NotifyRegistration

Register a waiter before retrying allocation.

fn wake(&self)

Wake one waiter after a slot becomes available.