Hello Sven,
I'm trying to implement Asynchronous Module Definition
( http://requirejs.org/ ) in my JavaScript IDE based on v8.
require( "../dir/myScript", function(myScriptResult){
//Callback function doing something with myScriptResult
});
//Long running JavaScript code
//...
require("scriptPath",callback) is here a bound cpp function that will
create a thread whose job is to load the specified script, evaluate it, and
return his result as a parameter of the specified callback.
Asynchronously... My problem is in the "evaluation" part of this script. I
use only one isolate, which is already locked. So I need a way to unlock it
and give a chance to my other thread to do some work. The preemption
allowed me to that, using a context switcher thread.
I know JavaScript is not supposed to be multithreaded, but I don't see any
other way supporting this feature. Is there other reasons than "Chromium
and Node don't use preemption" that led to remove it ?
On Friday, June 13, 2014 2:26:19 PM UTC+2, Sven Panne wrote:
>
> On Fri, Jun 13, 2014 at 2:15 PM, juu <[email protected] <javascript:>>
> wrote:
>
>> But if I use multiples isolates, I won't be able to share objects across
>> Isolates' contexts ? No ?
>>
>
> Nope, hence the term "Isolate"... ;-)
>
>
>> In my case, (AMD Require implementation) the result of my second thread
>> execution is supposed to be used in my main thread.
>>
>
> I don't fully understand what you're trying to do in detail, but
> preempting/interrupting the execution of an Isolate, trying to do something
> else with that Isolate, and later resuming the previous execution
> definitely won't work (and never did IIRC). You can e.g. interleave the
> execution of different Isolates in a single thread, or migrate one Isolate
> to another thread, or have multiple Isolates running at the same time in
> separate threads, though.
>
>
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