2010/10/12 Gary Chambers <[email protected]>:
> Hi all, I've encountered a problem with FreeType with respect to the new
> finalization scheme.
> http://code.google.com/p/pharo/issues/detail?id=3096
> Regards, Gary
>
FT2HandleRegistry overrides following method:
add: anObject
"Add anObject to the receiver. Store the object as well as the
associated executor."
| executor dup |
executor := anObject executor.
dup := nil.
self protected:[
dup := valueDictionary detect: [ :v | v handle = executor
handle ]
ifNone: [ ].
valueDictionary at: anObject put: executor.
].
dup ifNotNil: [ self error: 'Duplicate object added!'. self remove:
anObject ].
^anObject
As i see, the intent is to prevent registering a same handle twice,
so in own turn, when time will come, a #finalize won't attempt to
destroy same handle twice.
The proposed fix (as you wrote in issue tracker)
registry
^Registry ifNil: [ Registry := WeakRegistry new]
appears to fix the problem...
But apparently its not the same as in original.
Okay, but since we never seen the error: 'Duplicate object added!',
then i think it may work without it :)
Still, it would be good to know, how handles are created, and what the
chances that they could be duplicated.
--
Best regards,
Igor Stasenko AKA sig.
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