blob: 3a0b34501b0b37edd616c441f428af877fd9fa80 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
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
let coop = ready!(crate::coop::poll_proceed(cx));
self.entry.poll_elapsed(cx).map(move |r| {
coop.made_progress();
r
})
}
}
impl Drop for Registration {
fn drop(&mut self) {
Entry::cancel(&self.entry);
}
}
|
