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List:       kde-devel
Subject:    Re: BUG: KStaticDeleters cleaned up too soon
From:       Szombathelyi_György <gyurco () freemail ! hu>
Date:       2004-09-15 5:43:29
Message-ID: 4147D681.8060108 () freemail ! hu
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richedw@vodafone.es wrote:
> I originally reported this as BUG 89333 =>KStaticDeleter crashes Kate on quit.
> This bug is crashing applications all over and it is being fixed at the wrong 
> places.
> I have traced it to the ~KApplication destructor when quitting .
> KGlobal::deleteStaticDeleters() deletes the all the Static Deleters and next
> KLibLoader::cleanUp() cleans up left-overs objects, which may in their 
> destructor
> try to access a static deleter that is no longer there.
> KLibLoader::cleanUp shold be called first unless there is a good reason not 
> to,
> otherwise best avoid KStaticDeleter for factory singletons.
> The coding of the KStaticDeleter itself is much to blame as once created it 
> sets
> a global variable and doesn't check for deletion.
> 

I also encountered some KStaticDeleter related crashes in the past, so I 
added the following addition to api docs:

http://webcvs.kde.org/cgi-bin/cvsweb.cgi/kdelibs/kdecore/kstaticdeleter.h.diff?r1=1.17&r2=1.18

I think it's worth to read it once.

Bye,
György
 
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