Перечисление MissedTickBehavior

Expected ticks: |     1     |     2     |     3     |     4     |     5     |     6     |
Actual ticks:   | work -----|          delay          | work | work | work -| work -----|

use tokio::time::{interval, Duration};

let mut interval = interval(Duration::from_millis(50));

// First tick resolves immediately after creation
interval.tick().await;

task_that_takes_200_millis().await;
// The `Interval` has missed a tick

// Since we have exceeded our timeout, this will resolve immediately
interval.tick().await;

// Since we are more than 100ms after the start of `interval`, this will
// also resolve immediately.
interval.tick().await;

// Also resolves immediately, because it was supposed to resolve at
// 150ms after the start of `interval`
interval.tick().await;

// Resolves immediately
interval.tick().await;

// Since we have gotten to 200ms after the start of `interval`, this
// will resolve after 50ms
interval.tick().await;

Expected ticks: |     1     |     2     |     3     |     4     |     5     |     6     |
Actual ticks:   | work -----|          delay          | work -----| work -----| work -----|

use tokio::time::{interval, Duration, MissedTickBehavior};

let mut interval = interval(Duration::from_millis(50));
interval.set_missed_tick_behavior(MissedTickBehavior::Delay);

task_that_takes_more_than_50_millis().await;
// The `Interval` has missed a tick

// Since we have exceeded our timeout, this will resolve immediately
interval.tick().await;

// But this one, rather than also resolving immediately, as might happen
// with the `Burst` or `Skip` behaviors, will not resolve until
// 50ms after the call to `tick` up above. That is, in `tick`, when we
// recognize that we missed a tick, we schedule the next tick to happen
// 50ms (or whatever the `period` is) from right then, not from when
// were *supposed* to tick
interval.tick().await;

Expected ticks: |     1     |     2     |     3     |     4     |     5     |     6     |
Actual ticks:   | work -----|          delay          | work ---| work -----| work -----|

use tokio::time::{interval, Duration, MissedTickBehavior};

let mut interval = interval(Duration::from_millis(50));
interval.set_missed_tick_behavior(MissedTickBehavior::Skip);

task_that_takes_75_millis().await;
// The `Interval` has missed a tick

// Since we have exceeded our timeout, this will resolve immediately
interval.tick().await;

// This one will resolve after 25ms, 100ms after the start of
// `interval`, which is the closest multiple of `period` from the start
// of `interval` after the call to `tick` up above.
interval.tick().await;