10 May
2011
10 May
'11
9:04 a.m.
On 05/09/2011 06:44 PM, Martin Simmons wrote:
Your examples will be safe, but
(get-row (getf (call-a-foreign-function ...) :tab) 0)
might crash.
I got it now!! I thought that an object in a nested call like
(get-row (getf (call-a-foreign-function ...) :tab) 0)
must be considered as live/reachable until the outer most call is complete. Otherwise, you will have the same problem even with pure Lisp object as well. I'm not very familiar with the delicate technical aspects of runtime systems of Lisp implementations and maybe I make a fundamental mistake at that point!!
Regards Nik