Re: [Webware-discuss] MiddleKit and ObjectCache

[Chuck E. <Chu...@ya...>]

At 12:33 PM 5/30/2001 +0200, J=F6rn Schrader wrote:
>I have got a question concerning the object cache in MiddleKits ObjectStore
>(self._objects). Are there any plans introducing something like a cache
>cleaner for frequently clearing the _objects - Dict. in order to avoid=
 never
>ending growing.

Good question and "yes", I just haven't figured out what the approach is=20
gonna be and there have been some bigger priorities. For example, up until=
=20
a week or two ago, DB API cursors were being improperly used making=20
multi-threading impossible.

Just thinking off the top of my head, perhaps the store could convert=20
strong refs in _objects to weak ones after a certain time period. That way=
=20
if you were really using the object, it would still be known in the object=
=20
cache (which is important for "uniquing") but it could go away otherwise. I=
=20
have to brush up on weak ref details again.

I wonder if there is an interaction with this approach and g.c. and threads.


-Chuck