Struct Constellation 

pub struct Constellation<STF, SWF> {
    pub script_to_devtools_callback: OnceCell<Option<GenericCallback<ScriptToDevtoolsControlMsg>>>,
    /* private fields */
}

The Constellation itself. In the servo browser, there is one constellation, which maintains all of the browser global data. In embedded applications, there may be more than one constellation, which are independent of each other.

The constellation may be in a different process from the pipelines, and communicates using IPC.

It is parameterized over a LayoutThreadFactory and a ScriptThreadFactory (which in practice are implemented by LayoutThread in the layout crate, and ScriptThread in the script crate). Script and layout communicate using a Message type.

Fields

script_to_devtools_callback: OnceCell<Option<GenericCallback<ScriptToDevtoolsControlMsg>>>

A (potentially) IPC-based channel to the developer tools, if enabled. This allows EventLoops to send messages to then. Shared with all EventLoops.

Implementations

impl<STF, SWF> Constellation<STF, SWF>

where STF: ScriptThreadFactory, SWF: ServiceWorkerManagerFactory,

pub fn start( embedder_to_constellation_receiver: Receiver<EmbedderToConstellationMessage>, state: InitialConstellationState, layout_factory: Arc<dyn LayoutFactory>, random_pipeline_closure_probability: Option<f32>, random_pipeline_closure_seed: Option<usize>, hard_fail: bool, )

Create a new constellation thread.