v12.18.2 proposal #34077
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v12.18.2 proposal #34077
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Original commit message:
[objects] Compact and shrink script_list
So far creating scripts always grew the script_list without ever
reusing cleared slots or shrinking. While this is probably not a
problem with script_list in practice, this is still a memory leak.
Fix this leak by using WeakArrayList::Append instead of AddToEnd.
Append adds to the end of the array, but potentially compacts and
shrinks the list as well. Other WeakArrayLists can use this method as
well, as long as they are not using indices into this array.
Bug: v8:10031
Change-Id: If743c4cc3f8d67ab735522f0ded038b2fb43e437
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1967385
Commit-Queue: Dominik Inführ <[email protected]>
Reviewed-by: Ulan Degenbaev <[email protected]>
Cr-Commit-Position: refs/heads/master@{#65640}
Refs: v8/v8@fb26d0b
PR-URL: #33573
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Ruben Bridgewater <[email protected]>
Reviewed-By: Shelley Vohr <[email protected]>
Reviewed-By: Beth Griggs <[email protected]>
Use a symbol on the bindings object to store the public resource object, rather than a `v8::Global` Persistent. This has several advantages: - It’s harder to inadvertently create memory leaks this way. The garbage collector sees the `AsyncWrap` → resource link like a regular JS property, and can collect the objects as a group, even if the resource object should happen to point back to the `AsyncWrap` object. - This will make it easier in the future to use `owner_symbol` for this purpose, which is generally the direction we should be moving the `async_hooks` API into (i.e. using more public objects instead of letting internal wires stick out). PR-URL: #31745 Backport-PR-URL: #33962 Reviewed-By: Stephen Belanger <[email protected]> Reviewed-By: David Carlier <[email protected]> Reviewed-By: Denys Otrishko <[email protected]> Reviewed-By: Chengzhong Wu <[email protected]> Reviewed-By: Benjamin Gruenbaum <[email protected]> Reviewed-By: James M Snell <[email protected]> Reviewed-By: Minwoo Jung <[email protected]> Reviewed-By: Colin Ihrig <[email protected]> Reviewed-By: Franziska Hinkelmann <[email protected]> Reviewed-By: Gerhard Stöbich <[email protected]>
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2020-06-30, Version 12.18.2 'Erbium' (LTS), @BethGriggs
Notable changes
PrototypeUsers::AddAsyncWrapresource (Anna Henningsen) #31745Commits
97a3f7b702] - deps: V8: backport fb26d0bb1835 (Matheus Marchini) #3357330b0339061] - src: use symbol to storeAsyncWrapresource (Anna Henningsen) #31745From nodejs/Release#494 (comment):