Add implementation for AudioWorkletGlobalScope.registerProcessor()

[Chris Dumez]

Add implementation for AudioWorkletGlobalScope.registerProcessor():
- https://www.w3.org/TR/webaudio/#dom-audioworkletglobalscope-registerprocessor

[Chris Dumez]

Created attachment 410693 [details]
Patch

[Geoffrey Garen]

Comment on attachment 410693 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=410693&action=review

r=me

> Source/WebCore/Modules/webaudio/AudioWorkletGlobalScope.cpp:70
> +    JSC::JSObject* jsConstructor = processorContructor->callbackData()->callback();
> +    auto* globalObject = jsConstructor->globalObject();
> +    auto& vm = globalObject->vm();
> +    auto scope = DECLARE_THROW_SCOPE(vm);

Does an audio worklet always execute on the same non-main thread?

[Chris Dumez]

(In reply to Geoffrey Garen from comment #2)
> Comment on attachment 410693 [details]
> Patch
> 
> View in context:
> https://bugs.webkit.org/attachment.cgi?id=410693&action=review
> 
> r=me
> 
> > Source/WebCore/Modules/webaudio/AudioWorkletGlobalScope.cpp:70
> > +    JSC::JSObject* jsConstructor = processorContructor->callbackData()->callback();
> > +    auto* globalObject = jsConstructor->globalObject();
> > +    auto& vm = globalObject->vm();
> > +    auto scope = DECLARE_THROW_SCOPE(vm);
> 
> Does an audio worklet always execute on the same non-main thread?

Yes it does.

[Chris Dumez]

(In reply to Chris Dumez from comment #3)
> (In reply to Geoffrey Garen from comment #2)
> > Comment on attachment 410693 [details]
> > Patch
> > 
> > View in context:
> > https://bugs.webkit.org/attachment.cgi?id=410693&action=review
> > 
> > r=me
> > 
> > > Source/WebCore/Modules/webaudio/AudioWorkletGlobalScope.cpp:70
> > > +    JSC::JSObject* jsConstructor = processorContructor->callbackData()->callback();
> > > +    auto* globalObject = jsConstructor->globalObject();
> > > +    auto& vm = globalObject->vm();
> > > +    auto scope = DECLARE_THROW_SCOPE(vm);
> > 
> > Does an audio worklet always execute on the same non-main thread?
> 
> Yes it does.

Why the question? Would you like me to tighten the assertion to make sure we're always running on the Worklet thread instead of simply checking we're not on the main thread?

[Chris Dumez]

Created attachment 410707 [details]
Patch

[Chris Dumez]

Created attachment 410708 [details]
Patch

[Chris Dumez]

Created attachment 410710 [details]
Patch

[EWS]

ChangeLog entry in LayoutTests/imported/w3c/ChangeLog contains OOPS!.

[Chris Dumez]

Created attachment 410713 [details]
Patch

[EWS]

Committed r268103: <https://trac.webkit.org/changeset/268103>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 410713 [details].

[Radar WebKit Bug Importer]

<rdar://problem/70025532>