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Measure memory usage of Stylo's Rule Tree.

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This commit is contained in:
Nicholas Nethercote 2017-08-30 21:46:15 +10:00
parent 5dee83d54d
commit e08829703a
7 changed files with 126 additions and 10 deletions
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17
components/style/stylist.rs
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@ -12,7 +12,7 @@ use dom::TElement;
use element_state::ElementState;
use font_metrics::FontMetricsProvider;
#[cfg(feature = "gecko")]
use gecko_bindings::structs::{nsIAtom, StyleRuleInclusion};
use gecko_bindings::structs::{nsIAtom, ServoStyleSetSizes, StyleRuleInclusion};
use invalidation::element::invalidation_map::InvalidationMap;
use invalidation::media_queries::{EffectiveMediaQueryResults, ToMediaListKey};
use media_queries::Device;
@ -41,8 +41,11 @@ use style_traits::viewport::ViewportConstraints;
use stylesheet_set::{OriginValidity, SheetRebuildKind, StylesheetSet, StylesheetIterator, StylesheetFlusher};
#[cfg(feature = "gecko")]
use stylesheets::{CounterStyleRule, FontFaceRule, FontFeatureValuesRule};
use stylesheets::{CssRule, StyleRule};
use stylesheets::{StylesheetInDocument, Origin, OriginSet, PerOrigin, PerOriginIter};
use stylesheets::{CssRule, Origin, OriginSet, PerOrigin, PerOriginIter};
#[cfg(feature = "gecko")]
use stylesheets::{MallocSizeOf, MallocSizeOfFn};
use stylesheets::StyleRule;
use stylesheets::StylesheetInDocument;
use stylesheets::UserAgentStylesheets;
use stylesheets::keyframes_rule::KeyframesAnimation;
use stylesheets::viewport_rule::{self, MaybeNew, ViewportRule};
@ -1560,6 +1563,14 @@ impl Stylist {
pub fn rule_tree(&self) -> &RuleTree {
&self.rule_tree
}
/// Measures heap usage.
#[cfg(feature = "gecko")]
pub fn malloc_add_size_of_children(&self, malloc_size_of: MallocSizeOfFn,
sizes: &mut ServoStyleSetSizes) {
// XXX: need to measure other fields
sizes.mStylistRuleTree += self.rule_tree.malloc_size_of_children(malloc_size_of);
}
}
/// This struct holds data which users of Stylist may want to extract