Function single_executor::polling_future

pub async fn polling_future<Q, CS>(
    function: impl FnMut() -> bool, 
    sleep_duration: Duration, 
    sleep_future_runner: SleepFutureRunner<Q, CS>
) where
    CS: TryThreadSpawner<()> + TimeFunctions,
    Q: 'static + TimeoutQueue<Item = SleepMessage<CS>> + Send + Sync, 

Polls a function (function) until it returns true. Sleeps between polls for sleep_duration.