Reference count access or better method?
starx at pacbell.net
Sun Jan 13 23:23:08 CET 2002
It's hard to describe this in a subject line, but...
I have a class. When the class is instiantated, it requires a name, and
'registers' itself in a module level name->object dictionary. It is then
used by other objects, which should keep a local reference if they need
continual access. When no one else but the dictionary refernces the
object, i want to have the _option_ to purge it (just giving up on it and
deleting it from the dict is not what i want, it must have a reference
there for as long as it is). To determine this 'purgable' status, the
best option i've come up with is to check the reference count, and if
it's at one and we have a referece, we have the only one, therefore it's
purgable. However, the only thing i've found that acesses refrence counts
is the referer list in the GC module, and using that seems kind of
Is weekref what i want for something like this? Is there a better way to
design it in general? (FWIW, i'm currently planning to do this with
textures and 3d objects (two sets))
Philip Sw "Starweaver" [rasx] :: "Something a little bit like blue"
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