From: William Djaja Tjokroaminata <billtj@...>
Date: 2002-08-09T23:24:27+09:00
Subject: Are All C Destructors Guaranteed to Be Called?

Hi,

Are all C destructors, i.e., the "free" function that is specified in
Data_Make_Struct (VALUE, c-type, mark, "free", c-type*), guaranteed to be
called when the Ruby script/process exits?

I put "printf" on all the "free" functions, and one of them did not get
called.  Is it a sign that something is still not clean?  How about
circular reference (I think I have one in my code)?  Will circular
reference cause the free function not called at the end of the
script/process?

I know that in Python circular reference can cause trouble since it gc
uses reference counting.  But Ruby gc uses mark-and-sweep method.

Regards,

Bill