[IronPython] shall #14454 be fixed for 1.X ?

Michael Foord fuzzyman at voidspace.org.uk
Tue Apr 22 17:22:17 CEST 2008


Great! Thanks Dino.

Michael

Dino Viehland wrote:

>It shouldn't cause the lambda's to be lost.  The picture ends up looking like:
>
>+-----------+                   +-----------+
>| Object W/ |                   |           |
>| Event  ---+- strong ref---->  | Lambda    |
>+-----------+                   +-----------+
>
>+------------------------------------+
>| Dictionary                           |
>| KeyValuePair 0:                    |
>|    Key: WeakRef -> Object W/ Event |
>|    Value: WeakRef -> Lambda        |
>+------------------------------------+
>
>So long as your object w/ an event remains rooted it has a strong reference to the lambda.  If the reference to the object w/ the event is lost then both objects can be collected.
>
>It should be fairly straight forward to port this back to 1.1.
>
>-----Original Message-----
>From: users-bounces at lists.ironpython.com [mailto:users-bounces at lists.ironpython.com] On Behalf Of Michael Foord
>Sent: Tuesday, April 22, 2008 3:25 AM
>To: Discussion of IronPython
>Subject: Re: [IronPython] shall #14454 be fixed for 1.X ?
>
>Sakesun Roykiattisak wrote:
>
>  
>
>>Hi,
>>
>>The 2.0beta is not stable enough for me to work with yet.
>>But 1.1 is leaking memory and not applicable for long running server
>>application.
>>
>>http://www.codeplex.com/IronPython/WorkItem/View.aspx?WorkItemId=14454
>>
>>Wonder how hard to fix #14454 in 1.1 ?
>>
>>
>>    
>>
>
>Note that you can 'fix' this yourself by unsubscribing from events when
>you have finished with them.
>
>It would be nice to see this fixed - so long as it doesn't cause
>problems when you use lambda functions (or other functions that you
>aren't directly keeping a reference to) as event handlers.
>
>Michael Foord
>http://www.ironpythoninaction.com/
>
>  
>
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>>
>>    
>>
>
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