Re: [Rubycocoa-talk] Threads in RubyCocoa

[Godfrey v. d. L. <gv...@ma...>]

On a more general point---now that multiCPUs machines are getting to  
be very common, does apple even ship a single CPU machine anymore---I  
think we will need true multi-threaded runtimes.  Is that work  
happening?  Do you need any help?  Where would I go to help?

Godfrey van der Linden


On 2008-03-13, at 17:25 , Laurent Sansonetti wrote:

> Hi Matias,
>
> On Thu, Mar 13, 2008 at 4:31 PM, Matias Pablo Brutti
> <mat...@gm...> wrote:
>> Hi ,
>>
>> I've read that rubycocoa has some issues with threads , NSThreads,  
>> which
>> will be the best approach to take to actually use threads?, which  
>> type of
>> threads should I use and finally is there an example or doc on  
>> rubycocoa
>> threads that you recommend ?,
>>
>> I'm implementing an application that makes lots of requests which  
>> takes some
>> time. My idea is to thread that process and while I receiving he  
>> info update
>> the TableView, all this while not frezzing my main application but  
>> without
>> threads I do not see how to do that. any ideas ?
>>
>
> The current version of Ruby (1.8) not being thread-safe, it is
> currently impossible to use NSThreads. Well you can, but RubyCocoa
> will route calls into the main thread for you (to avoid crashing), and
> it might cause a deadlock sometimes.
>
> The preferable way is to use Ruby threads instead. In Leopard, both
> the interpreter and RubyCocoa were modified to support calling
> Objective-C from Ruby threads. But this support is not ideal (you can
> see that as a hack), and sometimes it doesn't work.
>
> You can also use NSTimers or any other mechanism driven by the Cocoa  
> runloop.
>
> HTH,
> Laurent
>
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