Struct TimerWheel 

pub struct TimerWheel<V> { /* private fields */ }

Implementations

impl<V> TimerWheel<V>

pub fn new(num_slots: usize) -> Self

num_slots rounded up to a power of two.

pub fn num_slots(&self) -> usize

pub fn schedule(&mut self, delay_ticks: usize, value: V) -> u64

Schedule value to fire in delay_ticks. Returns an id for cancel.

pub fn cancel(&mut self, id: u64) -> bool

Mark a scheduled timer cancelled. Returns true if it was pending.

pub fn tick(&mut self) -> Vec<V>

Advance the hand one tick. Returns the values of all timers that fired (rounds was 0 and not cancelled). Cancelled timers are dropped silently. Other timers have their rounds decremented.