Struct JoinControl 

pub struct JoinControl { /* private fields */ }

The app’s hold on a running join: cancel it, or ask it to check for approval often while the app shows the wait.

Implementations

impl JoinControl

pub fn new() -> Self

A control no join has used yet.

pub fn cancel(&self)

Cancel the join this control was passed to.

pub fn check_often(&self, interval: Duration) -> SyncOftenGuard

Have the join check for approval at most interval after its last check ended, until the guard drops; a check already that overdue runs at once. With several guards held, the shortest interval wins. Checks that find the request waiting still count toward the backoff, and a provider cooldown still holds every check (§13.2).

pub fn parked_from_now(&self) -> impl Future<Output = ()> + Send + 'static

Wait until the join’s wait parks in a poll begun after this call, having seen all the caller did before.