Fix memory issues related to preload eviction.

[Yoav Weiss]

Fix memory issues related to preload eviction.

[Yoav Weiss]

Created attachment 300633 [details]
Patch

[Yoav Weiss]

Created attachment 300634 [details]
Patch

[Andreas Kling]

Comment on attachment 300634 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=300634&action=review

r=me, thanks for the quick turnaround :)

> Source/WebCore/loader/cache/CachedResourceLoader.cpp:1274
> +    if (linkPreloads && linkPreloads->size())
> +        m_preloads = WTFMove(linkPreloads);
> +    else
>          m_preloads = nullptr;

I think linkPreloads->size() is guaranteed to be >= 1 here, since you only allocate it when actually adding something.
I would suggest renaming it to remainingLinkPreloads, and then replacing this block with simply:
m_preloads = WTFMove(remainingLinkPreloads);

[Yoav Weiss]

Created attachment 300637 [details]
Patch

[Yoav Weiss]

(In reply to comment #3)
> Comment on attachment 300634 [details]
> Patch
> 
> View in context:
> https://bugs.webkit.org/attachment.cgi?id=300634&action=review
> 
> r=me, thanks for the quick turnaround :)
> 
> > Source/WebCore/loader/cache/CachedResourceLoader.cpp:1274
> > +    if (linkPreloads && linkPreloads->size())
> > +        m_preloads = WTFMove(linkPreloads);
> > +    else
> >          m_preloads = nullptr;
> 
> I think linkPreloads->size() is guaranteed to be >= 1 here, since you only
> allocate it when actually adding something.
> I would suggest renaming it to remainingLinkPreloads, and then replacing
> this block with simply:
> m_preloads = WTFMove(remainingLinkPreloads);

Good call. Changed as suggested

[WebKit Commit Bot]

Comment on attachment 300637 [details]
Patch

Clearing flags on attachment: 300637

Committed r211673: <http://trac.webkit.org/changeset/211673>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.