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script: Make timer events e10s-safe.

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Closes #8235.
This commit is contained in:
Patrick Walton 2015-10-27 19:52:19 -07:00 • committed by Josh Matthews
parent 4848e37e2e
commit 1dc0d61c3c
12 changed files with 64 additions and 97 deletions
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3
components/script/dom/bindings/global.rs
View file

@ -23,7 +23,6 @@ use net_traits::ResourceTask;
use profile_traits::mem;
use script_task::{CommonScriptMsg, ScriptChan, ScriptPort, ScriptTask};
use script_traits::{MsDuration, TimerEventRequest};
use std::sync::mpsc::Sender;
use timers::{ScheduledCallback, TimerHandle};
use url::Url;
use util::mem::HeapSizeOf;
@ -100,7 +99,7 @@ impl<'a> GlobalRef<'a> {
}
/// Get the scheduler channel to request timer events.
pub fn scheduler_chan(&self) -> Sender<TimerEventRequest> {
pub fn scheduler_chan(&self) -> IpcSender<TimerEventRequest> {
match *self {
GlobalRef::Window(window) => window.scheduler_chan(),
GlobalRef::Worker(worker) => worker.scheduler_chan(),

9
components/script/dom/bindings/trace.rs
View file

@ -62,7 +62,7 @@ use net_traits::storage_task::StorageType;
use profile_traits::mem::ProfilerChan as MemProfilerChan;
use profile_traits::time::ProfilerChan as TimeProfilerChan;
use script_task::ScriptChan;
use script_traits::{TimerEventChan, TimerEventId, TimerSource, UntrustedNodeAddress};
use script_traits::{TimerEventId, TimerSource, UntrustedNodeAddress};
use selectors::parser::PseudoElement;
use selectors::states::*;
use serde::{Deserialize, Serialize};
@ -302,13 +302,6 @@ impl JSTraceable for Box<ScriptChan + Send> {
}
}
impl JSTraceable for Box<TimerEventChan + Send> {
#[inline]
fn trace(&self, _trc: *mut JSTracer) {
// Do nothing
}
}
impl JSTraceable for Box<FnBox(f64, )> {
#[inline]
fn trace(&self, _trc: *mut JSTracer) {

43
components/script/dom/dedicatedworkerglobalscope.rs
View file

@ -19,7 +19,7 @@ use dom::messageevent::MessageEvent;
use dom::worker::{SimpleWorkerErrorHandler, TrustedWorkerAddress, WorkerMessageHandler};
use dom::workerglobalscope::WorkerGlobalScope;
use dom::workerglobalscope::WorkerGlobalScopeInit;
use ipc_channel::ipc::IpcReceiver;
use ipc_channel::ipc::{self, IpcReceiver, IpcSender};
use ipc_channel::router::ROUTER;
use js::jsapi::{HandleValue, JSContext, RootedValue};
use js::jsapi::{JSAutoCompartment, JSAutoRequest};
@ -30,7 +30,7 @@ use net_traits::load_whole_resource;
use rand::random;
use script_task::ScriptTaskEventCategory::WorkerEvent;
use script_task::{ScriptTask, ScriptChan, ScriptPort, StackRootTLS, CommonScriptMsg};
use script_traits::{TimerEvent, TimerEventChan, TimerSource};
use script_traits::{TimerEvent, TimerSource};
use std::mem::replace;
use std::rc::Rc;
use std::sync::mpsc::{Receiver, RecvError, Select, Sender, channel};
@ -103,29 +103,6 @@ impl ScriptPort for Receiver<(TrustedWorkerAddress, WorkerScriptMsg)> {
}
}
/// A TimerEventChan that can be cloned freely and will silently send a TrustedWorkerAddress
/// with timer events. While this SendableWorkerScriptChan is alive, the associated Worker
/// object will remain alive.
struct WorkerThreadTimerEventChan {
sender: Sender<(TrustedWorkerAddress, TimerEvent)>,
worker: TrustedWorkerAddress,
}
impl TimerEventChan for WorkerThreadTimerEventChan {
fn send(&self, event: TimerEvent) -> Result<(), ()> {
self.sender
.send((self.worker.clone(), event))
.map_err(|_| ())
}
fn clone(&self) -> Box<TimerEventChan + Send> {
box WorkerThreadTimerEventChan {
sender: self.sender.clone(),
worker: self.worker.clone(),
}
}
}
/// Set the `worker` field of a related DedicatedWorkerGlobalScope object to a particular
/// value for the duration of this object's lifetime. This ensures that the related Worker
/// object only lives as long as necessary (ie. while events are being executed), while
@ -183,7 +160,7 @@ impl DedicatedWorkerGlobalScope {
parent_sender: Box<ScriptChan + Send>,
own_sender: Sender<(TrustedWorkerAddress, WorkerScriptMsg)>,
receiver: Receiver<(TrustedWorkerAddress, WorkerScriptMsg)>,
timer_event_chan: Box<TimerEventChan + Send>,
timer_event_chan: IpcSender<TimerEvent>,
timer_event_port: Receiver<(TrustedWorkerAddress, TimerEvent)>)
-> DedicatedWorkerGlobalScope {
@ -207,7 +184,7 @@ impl DedicatedWorkerGlobalScope {
parent_sender: Box<ScriptChan + Send>,
own_sender: Sender<(TrustedWorkerAddress, WorkerScriptMsg)>,
receiver: Receiver<(TrustedWorkerAddress, WorkerScriptMsg)>,
timer_event_chan: Box<TimerEventChan + Send>,
timer_event_chan: IpcSender<TimerEvent>,
timer_event_port: Receiver<(TrustedWorkerAddress, TimerEvent)>)
-> Root<DedicatedWorkerGlobalScope> {
let scope = box DedicatedWorkerGlobalScope::new_inherited(
@ -249,15 +226,17 @@ impl DedicatedWorkerGlobalScope {
ROUTER.route_ipc_receiver_to_mpsc_sender(from_devtools_receiver, devtools_mpsc_chan);
let (timer_tx, timer_rx) = channel();
let timer_event_chan = box WorkerThreadTimerEventChan {
sender: timer_tx,
worker: worker.clone(),
};
let (timer_ipc_chan, timer_ipc_port) = ipc::channel().unwrap();
let worker_for_route = worker.clone();
ROUTER.add_route(timer_ipc_port.to_opaque(), box move |message| {
let event = message.to().unwrap();
timer_tx.send((worker_for_route.clone(), event)).unwrap();
});
let global = DedicatedWorkerGlobalScope::new(
init, url, id, devtools_mpsc_port, runtime.clone(),
parent_sender.clone(), own_sender, receiver,
timer_event_chan, timer_rx);
timer_ipc_chan, timer_rx);
// FIXME(njn): workers currently don't have a unique ID suitable for using in reporter
// registration (#6631), so we instead use a random number and cross our fingers.
let scope = global.upcast::<WorkerGlobalScope>();

14
components/script/dom/window.rs
View file

@ -53,8 +53,8 @@ use page::Page;
use profile_traits::mem;
use rustc_serialize::base64::{FromBase64, STANDARD, ToBase64};
use script_task::{ScriptChan, ScriptPort, MainThreadScriptMsg, RunnableWrapper};
use script_task::{SendableMainThreadScriptChan, MainThreadScriptChan, MainThreadTimerEventChan};
use script_traits::{MsDuration, TimerEventChan, TimerEventId, TimerEventRequest, TimerSource};
use script_task::{SendableMainThreadScriptChan, MainThreadScriptChan};
use script_traits::{MsDuration, TimerEvent, TimerEventId, TimerEventRequest, TimerSource};
use selectors::parser::PseudoElement;
use std::ascii::AsciiExt;
use std::borrow::ToOwned;
@ -129,7 +129,7 @@ pub struct Window {
session_storage: MutNullableHeap<JS<Storage>>,
local_storage: MutNullableHeap<JS<Storage>>,
#[ignore_heap_size_of = "channels are hard"]
scheduler_chan: Sender<TimerEventRequest>,
scheduler_chan: IpcSender<TimerEventRequest>,
timers: ActiveTimers,
next_worker_id: Cell<WorkerId>,
@ -1077,7 +1077,7 @@ impl Window {
self.constellation_chan.clone()
}
pub fn scheduler_chan(&self) -> Sender<TimerEventRequest> {
pub fn scheduler_chan(&self) -> IpcSender<TimerEventRequest> {
self.scheduler_chan.clone()
}
@ -1227,8 +1227,8 @@ impl Window {
mem_profiler_chan: mem::ProfilerChan,
devtools_chan: Option<IpcSender<ScriptToDevtoolsControlMsg>>,
constellation_chan: ConstellationChan,
scheduler_chan: Sender<TimerEventRequest>,
timer_event_chan: MainThreadTimerEventChan,
scheduler_chan: IpcSender<TimerEventRequest>,
timer_event_chan: IpcSender<TimerEvent>,
layout_chan: LayoutChan,
id: PipelineId,
parent_info: Option<(PipelineId, SubpageId)>,
@ -1261,7 +1261,7 @@ impl Window {
session_storage: Default::default(),
local_storage: Default::default(),
scheduler_chan: scheduler_chan.clone(),
timers: ActiveTimers::new(box timer_event_chan, scheduler_chan),
timers: ActiveTimers::new(timer_event_chan, scheduler_chan),
next_worker_id: Cell::new(WorkerId(0)),
id: id,
parent_info: parent_info,

12
components/script/dom/workerglobalscope.rs
View file

@ -24,11 +24,11 @@ use msg::constellation_msg::{ConstellationChan, PipelineId, WorkerId};
use net_traits::{ResourceTask, load_whole_resource};
use profile_traits::mem;
use script_task::{CommonScriptMsg, ScriptChan, ScriptPort};
use script_traits::{MsDuration, TimerEventChan, TimerEventId, TimerEventRequest, TimerSource};
use script_traits::{MsDuration, TimerEvent, TimerEventId, TimerEventRequest, TimerSource};
use std::cell::Cell;
use std::default::Default;
use std::rc::Rc;
use std::sync::mpsc::{Receiver, Sender};
use std::sync::mpsc::Receiver;
use timers::{ActiveTimers, IsInterval, ScheduledCallback, TimerCallback, TimerHandle};
use url::{Url, UrlParser};
use util::str::DOMString;
@ -44,7 +44,7 @@ pub struct WorkerGlobalScopeInit {
pub to_devtools_sender: Option<IpcSender<ScriptToDevtoolsControlMsg>>,
pub from_devtools_sender: Option<IpcSender<DevtoolScriptControlMsg>>,
pub constellation_chan: ConstellationChan,
pub scheduler_chan: Sender<TimerEventRequest>,
pub scheduler_chan: IpcSender<TimerEventRequest>,
pub worker_id: WorkerId,
}
@ -87,7 +87,7 @@ pub struct WorkerGlobalScope {
constellation_chan: ConstellationChan,
#[ignore_heap_size_of = "Defined in std"]
scheduler_chan: Sender<TimerEventRequest>,
scheduler_chan: IpcSender<TimerEventRequest>,
}
impl WorkerGlobalScope {
@ -95,7 +95,7 @@ impl WorkerGlobalScope {
worker_url: Url,
runtime: Rc<Runtime>,
from_devtools_receiver: Receiver<DevtoolScriptControlMsg>,
timer_event_chan: Box<TimerEventChan + Send>)
timer_event_chan: IpcSender<TimerEvent>)
-> WorkerGlobalScope {
WorkerGlobalScope {
eventtarget: EventTarget::new_inherited(),
@ -139,7 +139,7 @@ impl WorkerGlobalScope {
self.constellation_chan.clone()
}
pub fn scheduler_chan(&self) -> Sender<TimerEventRequest> {
pub fn scheduler_chan(&self) -> IpcSender<TimerEventRequest> {
self.scheduler_chan.clone()
}