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Start reporting memory usage for Window and all nodes in all DOM trees for frame treese in script tasks.

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This commit is contained in:
Josh Matthews 2015-07-31 12:46:36 -04:00
parent c2497fcd49
commit 8620fe5995
33 changed files with 317 additions and 107 deletions
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11
components/script/dom/bindings/js.rs
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@ -31,6 +31,7 @@ use js::jsapi::{JSObject, Heap, JSTracer};
use js::jsval::JSVal;
use layout_interface::TrustedNodeAddress;
use script_task::STACK_ROOTS;
use util::mem::HeapSizeOf;
use core::nonzero::NonZero;
use std::cell::{Cell, UnsafeCell};
@ -44,6 +45,14 @@ pub struct JS<T> {
ptr: NonZero<*const T>
}
// JS<T> is similar to Rc<T>, in that it's not always clear how to avoid double-counting.
// For now, we choose not to follow any such pointers.
impl<T> HeapSizeOf for JS<T> {
fn heap_size_of_children(&self) -> usize {
0
}
}
impl<T> JS<T> {
/// Returns `LayoutJS<T>` containing the same pointer.
pub unsafe fn to_layout(self) -> LayoutJS<T> {
@ -226,7 +235,7 @@ impl<T: HeapGCValue+Copy> MutHeap<T> {
/// place of traditional internal mutability to ensure that the proper GC
/// barriers are enforced.
#[must_root]
#[derive(JSTraceable)]
#[derive(JSTraceable, HeapSizeOf)]
pub struct MutNullableHeap<T: HeapGCValue+Copy> {
ptr: Cell<Option<T>>
}