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ensure clean shutdown of all threads running JS

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This commit is contained in:
Gregory Terzian 2020-06-24 15:07:48 +08:00
parent 0b61cfc3ae
commit 44ebca72da
25 changed files with 565 additions and 232 deletions
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25
components/layout_thread/lib.rs
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@ -153,7 +153,7 @@ pub struct LayoutThread {
font_cache_sender: IpcSender<()>,
/// A means of communication with the background hang monitor.
background_hang_monitor: Option<Box<dyn BackgroundHangMonitor>>,
background_hang_monitor: Box<dyn BackgroundHangMonitor>,
/// The channel on which messages can be sent to the constellation.
constellation_chan: IpcSender<ConstellationMsg>,
@ -266,7 +266,7 @@ impl LayoutThreadFactory for LayoutThread {
is_iframe: bool,
chan: (Sender<Msg>, Receiver<Msg>),
pipeline_port: IpcReceiver<LayoutControlMsg>,
background_hang_monitor_register: Option<Box<dyn BackgroundHangMonitorRegister>>,
background_hang_monitor_register: Box<dyn BackgroundHangMonitorRegister>,
constellation_chan: IpcSender<ConstellationMsg>,
script_chan: IpcSender<ConstellationControlMsg>,
image_cache: Arc<dyn ImageCache>,
@ -299,13 +299,13 @@ impl LayoutThreadFactory for LayoutThread {
// Ensures layout thread is destroyed before we send shutdown message
let sender = chan.0;
let background_hang_monitor = background_hang_monitor_register.map(|bhm| {
bhm.register_component(
let background_hang_monitor = background_hang_monitor_register
.register_component(
MonitoredComponentId(id, MonitoredComponentType::Layout),
Duration::from_millis(1000),
Duration::from_millis(5000),
)
});
None,
);
let layout = LayoutThread::new(
id,
@ -483,7 +483,7 @@ impl LayoutThread {
is_iframe: bool,
port: Receiver<Msg>,
pipeline_port: IpcReceiver<LayoutControlMsg>,
background_hang_monitor: Option<Box<dyn BackgroundHangMonitor>>,
background_hang_monitor: Box<dyn BackgroundHangMonitor>,
constellation_chan: IpcSender<ConstellationMsg>,
script_chan: IpcSender<ConstellationControlMsg>,
image_cache: Arc<dyn ImageCache>,
@ -656,8 +656,7 @@ impl LayoutThread {
Msg::SetNavigationStart(..) => LayoutHangAnnotation::SetNavigationStart,
};
self.background_hang_monitor
.as_ref()
.map(|bhm| bhm.notify_activity(HangAnnotation::Layout(hang_annotation)));
.notify_activity(HangAnnotation::Layout(hang_annotation));
}
/// Receives and dispatches messages from the script and constellation threads
@ -669,9 +668,7 @@ impl LayoutThread {
}
// Notify the background-hang-monitor we are waiting for an event.
self.background_hang_monitor
.as_ref()
.map(|bhm| bhm.notify_wait());
self.background_hang_monitor.notify_wait();
let request = select! {
recv(self.pipeline_port) -> msg => Request::FromPipeline(msg.unwrap()),
@ -926,9 +923,7 @@ impl LayoutThread {
);
self.root_flow.borrow_mut().take();
self.background_hang_monitor
.as_ref()
.map(|bhm| bhm.unregister());
self.background_hang_monitor.unregister();
}
fn handle_add_stylesheet(&self, stylesheet: &Stylesheet, guard: &SharedRwLockReadGuard) {