Python GC does not work as it should be

Jean-Paul Calderone exarkun at divmod.com
Mon Jun 16 12:59:34 CEST 2008


On Mon, 16 Jun 2008 17:51:00 +0700, Jaimy Azle <jazle at nospam.log.web.id> wrote:
>See this piece of code:
>
>/* API to invoke gc.collect() from C */
>Py_ssize_t
>PyGC_Collect(void)
>{
> Py_ssize_t n;
>
> if (collecting)
>  n = 0; /* already collecting, don't do anything */
> else {
>  collecting = 1;
>  n = collect(NUM_GENERATIONS - 1);
>  collecting = 0;
> }
> return n;
>}
>
>If a system exception raised when executing collect(xxx), collecting state
>variable would never be reset and python GC will not works forever until the
>application restarted.

A system exception?  What's that?  C doesn't have exceptions.

Jean-Paul



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