ensure clean shutdown of all threads running JS

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

View file

@ -134,7 +134,7 @@ 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 script thread.
script_chan: IpcSender<ConstellationControlMsg>,
@ -234,7 +234,7 @@ 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>,
@ -267,13 +267,13 @@ 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,
@ -450,7 +450,7 @@ 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>,
@ -619,8 +619,7 @@ 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
@ -632,9 +631,7 @@ 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()),
@ -851,9 +848,7 @@ impl LayoutThread {
}
fn exit_now(&mut self) {
self.background_hang_monitor
.as_ref()
.map(|bhm| bhm.unregister());
self.background_hang_monitor.unregister();
}
fn handle_add_stylesheet(&self, stylesheet: &Stylesheet, guard: &SharedRwLockReadGuard) {