Jeremy Hylton wrote at 2003-12-8 15:28 -0500:
>On Mon, 2003-12-08 at 13:17, Dieter Maurer wrote:
>> Jeremy Hylton wrote at 2003-12-7 23:01 -0500:
>> >On Sun, 2003-12-07 at 08:15, Dieter Maurer wrote:
>> >> ATT: replacing the cache without clearing it can lead to huge
>> >> memory leaks (everything in the old cache is leaked!).
>> >Without commenting on the rest of the bug report, I should mention that
>> >caches and persistent objects all participate in cyclic GC. They will
>> >not leak the way pre-2.8 caches did.
>> Has the "do not free when a cycle contains an object with destructor"
>> restriction been removed from the cyclic GC?
>> It is not unlikely that the cache references an object with a "__del__".
>> This may keep the cache and all its content.
>I don't think it makes a lot of sense to put an __del__ method on a
I just read in "cPersistence.c:ghostify":
/* We remove the reference to the just ghosted object that the ring
* holds. Note that the dictionary of oids->objects has an uncounted
* reference, so if the ring's reference was the only one, this frees
* the ghost object. Note further that the object's dealloc knows to
* inform the dictionary that it is going away.
This means: *all* persistent objects have a special "dealloc"
function. Hope, this "dealloc" function plays well with the
cyclic garbage collector.
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