Re: Necko e10s specs

Benjamin Smedberg wrote:
> On 9/2/09 7:09 PM, Robert O'Callahan wrote:
> 
>> Are you guys aware of the HTML5 spec requirements surrounding the
>> "storage mutex"?
>>
>> Basically we need to ensure that we don't have races where Necko
>> modifying cookies makes them appear to change while content script is
>> running.
> 
> I was vaguely aware, but we got a lot more aware of them today. I've posted
> some questions/proposals to WhatWG: the current global storage mutex is
> really unpleasant and I think we'd like to avoid it if it's not too painful
> to do so.
> 

Also, what we proposed solves the problem Rob posed, in a literal sense, 
without introducing behaviors that wouldn't happen in the 
single-event-loop case.

What it doesn't guarantee is "sequential consistency" of cookie data wrt 
to run-to-completion semantics when scripts from the same domain run 
concurrently, in separate processes.  But I don't know if we want to 
allow that anyway ...

Cheers,
Chris