[whatwg] Combining the DedicatedWorker and SharedWorker interfaces

[Alexey Proskuryakov]

Nov 6, 2008, в 2:18 AM, Jonas Sicking написал(а):

>> Similarly, having separate interfaces for Worker and SharedWorker  
>> implies that there is some fundamental difference in their behavior  
>> - a difference that eludes me so far.
>
> A shared worker is shared between all scripts on a single site[*]  
> that instantiates a worker with the same name. I.e. where the second  
> argument to the constructor is the same. (Don't remember what  
> happens if the second argument is the same as an existing worker,  
> but the first is not, check with the spec).


Sure, that part is clear - but it's only about the behavior of the  
object's constructor, not the object itself! It alone doesn't warrant  
having a separate interface.

As an example from another area, see mmap(2) function - you can pass  
MAP_ANON or MAP_FILE via its flags to achieve similar results. Note  
also that it has a number of other options. If we create a separate  
interface for every Worker isolation level needed (both inside and  
outside), we'll soon end up with PrivateWorker, SharedDataWorker and  
who knows what else.

- WBR, Alexey Proskuryakov