Re: Debug Interface for the mozjs, how to start/stop/pause/continue the js engine

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Thanks, I think that I have now some ideas about how to proceed; probably t=
his week-end.


PS: When I send a message to the list I receive a message (spam ?!) from "S=
upport TheFork <[email protected]> (TheFork, a TripAdvisor Company)"; I jo=
ined the mail as attachment, and give below the content:

=2D----
Hello ,
Thanks for your email. We have received your request 04464655 and it is bei=
ng processed by our Support team.
To leave additional comments, please reply to this email.
Best,
TheFork team
=2D----


Le mardi 7 avril 2020, 11:48:12 CEST Nicolas B. Pierron a =C3=A9crit :
> On Monday, April 6, 2020 at 9:20:21 PM UTC+2, lemmel wrote:
> > - C) while executing, the user press pause
>=20
> The problem you will have is that the user pressing pause will run concur=
rently with the JavaScript execution. Also, you do not want to execute `onS=
tep` for each instruction as this would be terribly slow.
>=20
> Instead, what you can do from C++ is to trigger an Interruption callback,=
 this breaks the semantic of JavaScript in many ways =E2=80=A6 but this giv=
es you the opportunity to "pause" the execution by setting up the `onStep` =
callback on `Debugger.getNewestFrame()`.  Once resuming from the interrupti=
on callback, the `onStep` callback should be called.
>=20
> For information about interruption callback, I will forward you to the co=
de, because I do not know if we have any good documentation on the subject.=
 The JS Shell has some builtins to register a callback[1], and it can be tr=
iggered asynchronously using `JS_RequestInterruptCallback` [2].
>=20
> [1] https://searchfox.org/mozilla-central/source/js/src/shell/js.cpp#4588
> [2] https://searchfox.org/mozilla-central/source/js/src/jsapi.cpp#4093,40=
97
> _______________________________________________
> dev-tech-js-engine mailing list
> [email protected]
> https://lists.mozilla.org/listinfo/dev-tech-js-engine
>=20


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Date: Mon, 06 Apr 2020 19:20:34 +0000
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Subject: Request received: Re: Debug Interface for the mozjs, how to start/stop/pause/continue the js engine  ref:_00DU0Lfqj._5001v1K2NFt:ref
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Hello ,

Thanks for your email. We have received your request 04464655 and it is being processed by our Support team.

To leave additional comments, please reply to this email.

Best,

TheFork team


TheFork, a TripAdvisor Company
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