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use std::task::Waker;
pub(crate) struct Defer {
deferred: Vec<Waker>,
}
impl Defer {
pub(crate) fn new() -> Defer {
Defer {
deferred: Default::default(),
}
}
pub(crate) fn defer(&mut self, waker: Waker) {
self.deferred.push(waker);
}
pub(crate) fn is_empty(&self) -> bool {
self.deferred.is_empty()
}
pub(crate) fn wake(&mut self) {
for waker in self.deferred.drain(..) {
waker.wake();
}
}
}
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