The garbage collector begin its mark phase from scaning and marking registered root
references object,then walk and mark other reachable objects.
The file gcRefs.c defines two functions:gc_add_ref and gc_rm_ref,the first one add a
persistent reference to an object (stored in a hashtable ),the next function remove a
persistent reference to an object.
I know many functions invoke gc_add_ref to add a references to an object,but I hardly
find corresponding invoking about gc_rm_ref .
I want to know,how garbage collector (or kaffe ?) maintain it's hashtable of root
references object(not only add,but also delete) ?
thanks
