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compositing: Split Servo up into multiple sandboxed processes.
Multiprocess mode is enabled with the `-M` switch, and sandboxing is enabled with the `-S` switch.
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ff4171170d
commit
1c130819ca
33 changed files with 688 additions and 265 deletions
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@ -104,7 +104,7 @@ use time::{Tm, now};
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use url::{Url, UrlParser};
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use util::opts;
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use util::str::DOMString;
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use util::task::spawn_named_with_send_on_failure;
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use util::task;
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use util::task_state;
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use webdriver_handlers;
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@ -232,8 +232,9 @@ pub enum ScriptTaskEventCategory {
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Resize,
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ScriptEvent,
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TimerEvent,
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UpdateReplacedElement,
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SetViewport,
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StylesheetLoad,
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UpdateReplacedElement,
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WebSocketEvent,
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WorkerEvent,
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}
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@ -396,7 +397,7 @@ pub struct ScriptTask {
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chan: MainThreadScriptChan,
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/// A channel to hand out to tasks that need to respond to a message from the script task.
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control_chan: Sender<ConstellationControlMsg>,
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control_chan: IpcSender<ConstellationControlMsg>,
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/// The port on which the constellation and layout tasks can communicate with the
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/// script task.
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@ -438,6 +439,8 @@ pub struct ScriptTask {
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scheduler_chan: IpcSender<TimerEventRequest>,
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timer_event_chan: Sender<TimerEvent>,
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timer_event_port: Receiver<TimerEvent>,
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content_process_shutdown_chan: IpcSender<()>,
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}
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/// In the event of task failure, all data on the stack runs its destructor. However, there
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@ -484,7 +487,8 @@ impl ScriptTaskFactory for ScriptTask {
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ScriptLayoutChan::new(chan, port)
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}
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fn clone_layout_channel(_phantom: Option<&mut ScriptTask>, pair: &OpaqueScriptLayoutChannel) -> Box<Any + Send> {
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fn clone_layout_channel(_phantom: Option<&mut ScriptTask>, pair: &OpaqueScriptLayoutChannel)
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-> Box<Any + Send> {
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box pair.sender() as Box<Any + Send>
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}
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@ -496,9 +500,10 @@ impl ScriptTaskFactory for ScriptTask {
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let (script_chan, script_port) = channel();
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let layout_chan = LayoutChan(layout_chan.sender());
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let failure_info = state.failure_info;
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spawn_named_with_send_on_failure(format!("ScriptTask {:?}", state.id), task_state::SCRIPT, move || {
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task::spawn_named_with_send_on_failure(format!("ScriptTask {:?}", state.id),
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task_state::SCRIPT,
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move || {
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PipelineNamespace::install(state.pipeline_namespace_id);
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let roots = RootCollection::new();
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let _stack_roots_tls = StackRootTLS::new(&roots);
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let chan = MainThreadScriptChan(script_chan);
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@ -524,6 +529,7 @@ impl ScriptTaskFactory for ScriptTask {
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let reporter_name = format!("script-reporter-{}", id);
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mem_profiler_chan.run_with_memory_reporting(|| {
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script_task.start();
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let _ = script_task.content_process_shutdown_chan.send(());
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}, reporter_name, channel_for_reporter, CommonScriptMsg::CollectReports);
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// This must always be the very last operation performed before the task completes
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@ -636,6 +642,9 @@ impl ScriptTask {
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let (timer_event_chan, timer_event_port) = channel();
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// Ask the router to proxy IPC messages from the control port to us.
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let control_port = ROUTER.route_ipc_receiver_to_new_mpsc_receiver(state.control_port);
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ScriptTask {
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page: DOMRefCell::new(None),
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incomplete_loads: DOMRefCell::new(vec!()),
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@ -650,7 +659,7 @@ impl ScriptTask {
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port: port,
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chan: chan,
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control_chan: state.control_chan,
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control_port: state.control_port,
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control_port: control_port,
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constellation_chan: state.constellation_chan,
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compositor: DOMRefCell::new(state.compositor),
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time_profiler_chan: state.time_profiler_chan,
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@ -667,6 +676,8 @@ impl ScriptTask {
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scheduler_chan: state.scheduler_chan,
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timer_event_chan: timer_event_chan,
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timer_event_port: timer_event_port,
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content_process_shutdown_chan: state.content_process_shutdown_chan,
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}
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}
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@ -940,7 +951,10 @@ impl ScriptTask {
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ScriptTaskEventCategory::NetworkEvent => ProfilerCategory::ScriptNetworkEvent,
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ScriptTaskEventCategory::Resize => ProfilerCategory::ScriptResize,
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ScriptTaskEventCategory::ScriptEvent => ProfilerCategory::ScriptEvent,
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ScriptTaskEventCategory::UpdateReplacedElement => ProfilerCategory::ScriptUpdateReplacedElement,
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ScriptTaskEventCategory::UpdateReplacedElement => {
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ProfilerCategory::ScriptUpdateReplacedElement
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}
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ScriptTaskEventCategory::StylesheetLoad => ProfilerCategory::ScriptStylesheetLoad,
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ScriptTaskEventCategory::SetViewport => ProfilerCategory::ScriptSetViewport,
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ScriptTaskEventCategory::TimerEvent => ProfilerCategory::ScriptTimerEvent,
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ScriptTaskEventCategory::WebSocketEvent => ProfilerCategory::ScriptWebSocketEvent,
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@ -1185,6 +1199,7 @@ impl ScriptTask {
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failure,
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pipeline_port,
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layout_shutdown_chan,
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content_process_shutdown_chan,
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} = new_layout_info;
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let layout_pair = ScriptTask::create_layout_channel(None::<&mut ScriptTask>);
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@ -1204,6 +1219,7 @@ impl ScriptTask {
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script_chan: self.control_chan.clone(),
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image_cache_task: self.image_cache_task.clone(),
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layout_shutdown_chan: layout_shutdown_chan,
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content_process_shutdown_chan: content_process_shutdown_chan,
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};
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let page = self.root_page();
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