Calling (
has the effect that when the specified object is being garbage-collected,
EXT:FINALIZE
object
function
)(
will be executed.FUNCALL
function
object
)
Calling (
has a similar effect, but only as long as the EXT:FINALIZE
object
function
guardian
)guardian
has not been garbage-collected:
when object
is being garbage-collected, (
will be executed.
If the FUNCALL
function
object
guardian
)guardian
is garbage-collected before object
is, nothing happens.
The time when “the object
is being garbage-collected” is not
defined deterministically. (Actually, it might possibly never occur.)
It denotes a moment at which no references to object
exist from other
Lisp objects. When the function
is called, object
(and, possibly,
guardian
) enter the “arena of live Lisp objects” again.
No finalization request will be executed more than once.
These notes document CLISP version 2.49 | Last modified: 2010-07-07 |