[ZODB-Dev] cache gc api

[Jeremy Hylton]

>>>>> "BAW" == Barry A Warsaw <barry@zope.com> writes:
>>>>> "JH" == Jeremy Hylton <jeremy@zope.com> writes:

  JH> - Add documentation that says you can pass a value greater
  JH> than 196608 to achieve the effect of only removing unreachable
  JH> objects.

  JH> (If that seems to weird, we could use -1 to mean this instead of
  JH> 0.)

  BAW> "196608" certainly seems weird to me.  I assume it's not
  BAW> completely arbitrary <wink>, but I've no idea why this number
  BAW> is so special.  Thus +1 on -1. :)

It's relying on some internal implementation details -- specifically
that it divides the times it uses by 3 and then takes % 65356.  So it
you specifiy an age greater than 3 * 65536, then you've effectively
specified an age older than all objects.

Jeremy