ThreadRestrictionVerifier needs a mode where an object is tied to a particular dispatch queue

• Component: Web Template Framework
• Status: RESOLVED FIXED

[Mark Rowe (bdash)]

It’s not an uncommon practice to serialize access to an object by routing all access through a serial dispatch queue.  We have some code built on top of WTF::RefCounted that uses this model and currently fails the ThreadRestrictionVerifier asserts all over the place since it doesn’t know about this model.

[Mark Rowe (bdash)]

I’ve typed up a patch and am waiting on a build to confirm that it makes the asserts go away.  It should be ready for review in an hour or so.

[Mark Rowe (bdash)]

Created attachment 103112 [details]
Patch

[Adam Roben (:aroben)]

Comment on attachment 103112 [details]
Patch

I wonder if we could add a test to TestWebKitAPI for this?

[Anders Carlsson]

Comment on attachment 103112 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=103112&action=review

> Source/JavaScriptCore/wtf/ThreadRestrictionVerifier.h:57
> +        , m_owningQueue(0)

This should be inside an #if HAVE(DISPATCH_H)

[Mark Rowe (bdash)]

(In reply to comment #3)
> (From update of attachment 103112 [details])
> I wonder if we could add a test to TestWebKitAPI for this?

I have no idea.  The original patch also didn’t have tests.

[Mark Rowe (bdash)]

Landed in r92523.

[David Levin]

Thanks for the fix (and for getting someone to review it quickly).

I'm out and without much internet access right now.

I'll add a bug to add tests for the original patch and this one.