[Python-Dev] Re: DEBUG_SAVEALL feature for gc not in 2.0b1?
firstname.lastname@example.org (Skip Montanaro)
Fri, 1 Sep 2000 21:03:51 -0500 (CDT)
Neil> On Fri, Sep 01, 2000 at 11:47:59PM +0200, Vladimir Marangozov wrote:
>> By putting them in gc.collected_garbage. The next collect() should be
>> able to empty this list if the DEBUG_SAVEALL flag is not set. Do you
>> see any problems with this?
Neil> I don't really see the point. If someone has set the SAVEALL flag
Neil> then they are obviously debugging a program. I don't see much
Neil> point in the GC cleaning up this garbage. The user can do it if
Neil> they like.
Neil> I have an idea for an alternate interface. What if there was a
Neil> gc.handle_garbage hook which could be set to a function? The
Neil> collector would pass garbage objects to this function one at a
Neil> time. If the function returns true then it means that the garbage
Neil> was handled and the collector should not call tp_clear. These
Neil> handlers could be chained together like import hooks. The default
Neil> handler would simply append to the gc.garbage list. If a
Neil> debugging flag was set then all found garbage would be passed to
Neil> this function rather than just uncollectable garbage.
Neil> Skip, would a hook like this be useful to you?
Sounds too complex for my feeble brain... ;-)
What's the difference between "found garbage" and "uncollectable garbage"?
What sort of garbage are you appending to gc.garbage now? I thought by the
very nature of your garbage collector, anything it could free was otherwise