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>
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use crate::time::driver::{Entry, Handle}; use crate::time::{Duration, Error, Instant}; use std::sync::Arc; use std::task::{self, Poll}; /// Registration with a timer. /// /// The association between a `Delay` instance and a timer is done lazily in /// `poll` #[derive(Debug)] pub(crate) struct Registration { entry: Arc<Entry>, } impl Registration { pub(crate) fn new(deadline: Instant, duration: Duration) -> Registration { let handle = Handle::current(); Registration { entry: Entry::new(&handle, deadline, duration), } } pub(crate) fn deadline(&self) -> Instant { self.entry.time_ref().deadline } pub(crate) fn reset(&mut self, deadline: Instant) { unsafe { self.entry.time_mut().deadline = deadline; } Entry::reset(&mut self.entry); } pub(crate) fn is_elapsed(&self) -> bool { self.entry.is_elapsed() } pub(crate) fn poll_elapsed(&self, cx: &mut task::Context<'_>) -> Poll<Result<(), Error>> { // Keep track of task budget ready!(crate::coop::poll_proceed(cx)); self.entry.poll_elapsed(cx) } } impl Drop for Registration { fn drop(&mut self) { Entry::cancel(&self.entry); } }