On May 25, 2013, at 2:43 PM, Igor Stasenko <siguc...@gmail.com> wrote:

> On 25 May 2013 14:01, stephane ducasse <stephane.duca...@free.fr> wrote:
>> Igor I will use weak (may be weak should be default and we should propose 
>> strong as an option)
>> but I do not understand since
>> 
>>>> LoggerUI allInstances do: [ :each |
>>>>       SystemAnnouncer uniqueInstance unsubscribe: each ]
>> 
>> should unregister everything.
>> 
> is it held only by announcer or something else?

no nothing else.

Stef

> 
>> Stef
>> 
>> 
>> On May 25, 2013, at 1:55 PM, Igor Stasenko <siguc...@gmail.com> wrote:
>> 
>>> On 25 May 2013 13:49, Stéphane Ducasse <stephane.duca...@inria.fr> wrote:
>>>> Hi guys
>>>> 
>>>> this is strange I cannot get rid of Spec based ui instances.
>>>> I tried many
>>>> 
>>>> LoggerUI allInstances do: [ :each |
>>>>       SystemAnnouncer uniqueInstance unsubscribe: each ]
>>>> 
>>>> LoggerUI allInstances do: #delete.
>>>> 
>>>> Smalltalk garbageCollect
>>>> 
>>>> Nothing changes. Each time I create and close it does not get garbage 
>>>> collected.
>>>> I remove all the announcement registration from my code but nothing 
>>>> changes.
>>>> 
>>> 
>>> That's why it is preferable to always use weak subscriptions:
>>> 
>>> announcer weak on: Foo send: #bar to: theGuyWhoWillBeHeldWeakly
>>> 
>>> then:
>>> 1. you don't have to unsubscribe
>>> 2. even if you still have memory leaks, you can exclude announcer from 
>>> equation
>>> 
>>>> Stef
>>>> 
>>>> 
>>> 
>>> 
>>> 
>>> --
>>> Best regards,
>>> Igor Stasenko.
>>> 
>> 
>> 
> 
> 
> 
> -- 
> Best regards,
> Igor Stasenko.
> 


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