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style: Report heap size of rule tree heap allocations as well.

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Differential Revision: https://phabricator.services.mozilla.com/D33353
This commit is contained in:
Emilio Cobos Álvarez 2019-06-03 16:37:53 +00:00
parent 9721bd7d0d
commit ef99ab1f08
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1 changed files with 16 additions and 7 deletions
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23
components/style/rule_tree/mod.rs
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@ -14,8 +14,7 @@ use crate::properties::{Importance, LonghandIdSet, PropertyDeclarationBlock};
use crate::shared_lock::{Locked, SharedRwLockReadGuard, StylesheetGuards};
use crate::stylesheets::{Origin, StyleRule};
use crate::thread_state;
#[cfg(feature = "gecko")]
use malloc_size_of::{MallocSizeOf, MallocSizeOfOps};
use malloc_size_of::{MallocShallowSizeOf, MallocSizeOf, MallocSizeOfOps};
use parking_lot::RwLock;
use servo_arc::{Arc, ArcBorrow, ArcUnion, ArcUnionBorrow};
use smallvec::SmallVec;
@ -46,7 +45,6 @@ use std::sync::atomic::{AtomicPtr, AtomicUsize, Ordering};
/// logs from http://logs.glob.uno/?c=mozilla%23servo&s=3+Apr+2017&e=3+Apr+2017#c644094
/// to se a discussion about the different memory orderings used here.
#[derive(Debug)]
#[cfg_attr(feature = "servo", derive(MallocSizeOf))]
pub struct RuleTree {
root: StrongRuleNode,
}
@ -74,7 +72,6 @@ impl Drop for RuleTree {
}
}
#[cfg(feature = "gecko")]
impl MallocSizeOf for RuleTree {
fn size_of(&self, ops: &mut MallocSizeOfOps) -> usize {
let mut n = 0;
@ -83,9 +80,9 @@ impl MallocSizeOf for RuleTree {
while let Some(node) = stack.pop() {
n += unsafe { ops.malloc_size_of(node.ptr()) };
unsafe {
(*node.ptr()).children.read().each(|c| stack.push(c.clone()));
}
let children = unsafe { (*node.ptr()).children.read() };
children.shallow_size_of(ops);
children.each(|c| stack.push(c.clone()));
}
n
@ -769,6 +766,18 @@ enum RuleNodeChildren {
Map(Box<FxHashMap<ChildKey, WeakRuleNode>>),
}
impl MallocShallowSizeOf for RuleNodeChildren {
fn shallow_size_of(&self, ops: &mut MallocSizeOfOps) -> usize {
match *self {
RuleNodeChildren::One(..) | RuleNodeChildren::Empty => 0,
RuleNodeChildren::Map(ref m) => {
// Want to account for both the box and the hashmap.
m.shallow_size_of(ops) + (**m).shallow_size_of(ops)
},
}
}
}
impl Default for RuleNodeChildren {
fn default() -> Self {
RuleNodeChildren::Empty