|Title||MPS cannot queue a message when a weak thing goes away|
|Assigned user||Gareth Rees|
|Description||MPS cannot queue a message when a weak thing goes away. There should be option to queue a message. See customer request .|
|Analysis||See  for analysis from RB.|
GDR 2013-03-08: It looks to me as though this is not a problem any more. In the current implementation of weakness, you can detect the splatting of a weak reference by looking in the scan method to see if the reference became NULL when you fixed it. See the example in the documentation . This is likely to be timelier than waiting for a message on the message queue.
If you absolutely insist on using messages, you can pair your weak reference with a strong reference to a finalizable object, and then when you detect that the weak reference has been splatted, then you null out the corresponding strong reference, which will (eventually) cause a finalization message to be sent.
|Created by||Richard Kistruck|
|Created on||2005-03-10 03:11:45|
|Last modified by||Richard Brooksby|
|Last modified on||2013-03-12 12:50:35|
|History||2005-03-10 RHSK Created.|
2005-04-05 RB Added reference to notes from analysis session.
2013-03-08 GDR More analysis.
|180202||closed||2012-10-31 17:45:35||Gareth Rees||Write weak references chapter.|