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Replace mpsc with crossbeam/servo channel, update ipc-channel
Co-authored-by: Gregory Terzian <gterzian@users.noreply.github.com>
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parent
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commit
2a996fbc8f
89 changed files with 341 additions and 377 deletions
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@ -4,9 +4,9 @@
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use ipc_channel::ipc::{self, IpcSender};
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use script_traits::{TimerEvent, TimerEventRequest, TimerSchedulerMsg};
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use servo_channel::base_channel;
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use std::cmp::{self, Ord};
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use std::collections::BinaryHeap;
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use servo_channel::base_channel;
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use std::thread;
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use std::time::{Duration, Instant};
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@ -69,26 +69,29 @@ impl TimerScheduler {
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scheduled_events.pop();
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}
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// Look to see if there are any incoming events
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match req_receiver.try_recv() {
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// If there is an event, add it to the priority queue
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Ok(TimerSchedulerMsg::Request(req)) => {
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let TimerEventRequest(_, _, _, delay) = req;
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let schedule = Instant::now() + Duration::from_millis(delay.get());
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let event = ScheduledEvent {
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request: req,
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for_time: schedule,
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};
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scheduled_events.push(event);
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select! {
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recv(req_receiver, msg) => match msg {
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// If there is an event, add it to the priority queue
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Some(TimerSchedulerMsg::Request(req)) => {
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let TimerEventRequest(_, _, _, delay) = req;
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let schedule = Instant::now() + Duration::from_millis(delay.get());
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let event = ScheduledEvent {
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request: req,
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for_time: schedule,
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};
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scheduled_events.push(event);
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},
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// If the channel is closed or we are shutting down, we are done.
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Some(TimerSchedulerMsg::Exit) |
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None => break,
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},
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// If there is no incoming event, park the thread,
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// it will either be unparked when a new event arrives,
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// or by a timeout.
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Err(Empty) => match scheduled_events.peek() {
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default => match scheduled_events.peek() {
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None => thread::park(),
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Some(event) => thread::park_timeout(event.for_time - now),
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},
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// If the channel is closed or we are shutting down, we are done.
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Ok(TimerSchedulerMsg::Exit) | Err(Disconnected) => break,
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}
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}
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// This thread can terminate if the req_ipc_sender is dropped.
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