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threadshare: Handle context-wait==0 by waiting on IO

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This commit is contained in:
Sebastian Dröge 2019-09-09 12:16:09 +03:00
parent b05fb902f9
commit 5f9d649021
1 changed files with 32 additions and 12 deletions
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44
gst-plugin-threadshare/src/iocontext.rs
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@ -170,20 +170,37 @@ impl IOContextRunner {
let elapsed = now.elapsed();
gst_trace!(CONTEXT_CAT, "Elapsed {:?} after handling futures", elapsed);
if elapsed < wait {
gst_trace!(
CONTEXT_CAT,
"Waiting for {:?} before polling again",
wait - elapsed
);
thread::sleep(wait - elapsed);
gst_trace!(CONTEXT_CAT, "Slept for {:?}", now.elapsed());
}
if wait == time::Duration::from_millis(0) {
let timers = timers.lock().unwrap();
let wait = match timers.peek().map(|entry| entry.time) {
None => None,
Some(time) => Some({
let tmp = time::Instant::now();
if wait > time::Duration::from_millis(0) {
now += wait;
} else {
if time < tmp {
time::Duration::from_millis(0)
} else {
time.duration_since(tmp)
}
}),
};
gst_trace!(CONTEXT_CAT, "Sleeping for up to {:?}", wait);
current_thread.enter(enter).turn(wait).unwrap();
gst_trace!(CONTEXT_CAT, "Slept for {:?}", now.elapsed());
now = time::Instant::now();
} else {
if elapsed < wait {
gst_trace!(
CONTEXT_CAT,
"Waiting for {:?} before polling again",
wait - elapsed
);
thread::sleep(wait - elapsed);
gst_trace!(CONTEXT_CAT, "Slept for {:?}", now.elapsed());
}
now += wait;
}
})
});
@ -409,6 +426,8 @@ pub struct Interval {
impl Interval {
#[allow(unused)]
pub fn new(context: &IOContext, interval: time::Duration) -> Self {
use tokio_executor::park::Unpark;
let (sender, receiver) = futures_mpsc::unbounded();
let mut timers = context.0.timers.lock().unwrap();
@ -419,6 +438,7 @@ impl Interval {
sender,
};
timers.push(entry);
context.reactor_handle().unpark();
Self { receiver }
}