[Python-Dev] A little GC confusion (original) (raw)

Greg Ewing greg@cosc.canterbury.ac.nz
Fri, 22 Feb 2002 15:41:29 +1300 (NZDT)

Kevin Jacobs <jacobs@penguin.theopalgroup.com>:

I doesn't have any time to really look at your code, but I thought I'd point out a trick that several extension modules use to protect statically allocated type objects.

0, /* set below / / tpalloc */ PySocketSocknew, /* tpnew */ 0, /* set below / / tpfree */

I don't think that has anything to do with protecting the type object.

As I understand it, static type objects are protected by having their refcount statically initialised to 1, so that it will never drop to zero.

Greg Ewing, Computer Science Dept, +--------------------------------------+ University of Canterbury, | A citizen of NewZealandCorp, a | Christchurch, New Zealand | wholly-owned subsidiary of USA Inc. | greg@cosc.canterbury.ac.nz +--------------------------------------+