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Write animated values into the ComputedValues structures when

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animations complete or are interrupted.

This adds a new pair of reader-writer locks. I measured the performance
of style recalculation on Wikipedia and the overhead of the locks was
not measurable.

Closes #7816.
This commit is contained in:
Patrick Walton 2015-11-24 19:46:09 -06:00
parent 6f35b867c9
commit e881f0feeb
5 changed files with 134 additions and 56 deletions
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7
components/layout/context.rs
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@ -25,7 +25,7 @@ use std::collections::HashMap;
use std::collections::hash_state::DefaultState;
use std::rc::Rc;
use std::sync::mpsc::{Sender, channel};
use std::sync::{Arc, Mutex};
use std::sync::{Arc, Mutex, RwLock};
use style::selector_matching::Stylist;
use url::Url;
use util::mem::HeapSizeOf;
@ -120,7 +120,10 @@ pub struct SharedLayoutContext {
pub visible_rects: Arc<HashMap<LayerId, Rect<Au>, DefaultState<FnvHasher>>>,
/// The animations that are currently running.
pub running_animations: Arc<HashMap<OpaqueNode, Vec<Animation>>>,
pub running_animations: Arc<RwLock<HashMap<OpaqueNode, Vec<Animation>>>>,
/// The list of animations that have expired since the last style recalculation.
pub expired_animations: Arc<RwLock<HashMap<OpaqueNode, Vec<Animation>>>>,
/// Why is this reflow occurring
pub goal: ReflowGoal,