Do you mean an Allegro CL test? I don't think that's necessary since the manual is clear on the behavior, and I've witnessed GC block in my own code.
>From reading other posts in the thread, it does seem that Allegro CL is the outlier. I could add a note in the manual that mentions that whether GC blocks during a foreign function call is implementation dependent. On Fri, Aug 2, 2013 at 2:54 AM, Luís Oliveira <lolive...@common-lisp.net>wrote: > On Wed, Jul 31, 2013 at 10:15 AM, Stelian Ionescu <sione...@cddr.org> > wrote: > > SBCL never disables GC globally, and I don't think that CCL, ECL or ABCL > > do that either. > > > http://www.lispworks.com/documentation/lw61/FLI/html/fli-94.htm#pgfId-1070272has > no mention of GC, so it would seem that among SMP Lisps Allegro is the > only one to do sophisticated stuff. CMUCL and Clisp are currently > single-threaded so GC is implicitly disabled during foreign calls. > > Precise confirmation would be nice -- a test perhaps -- would be nice. > Felix, do you feel like writing a test that checks whether GC can > happen while a foreign function call is ongoing? > > If we can confirm that ACL is the outlier, then (a) I'm all for > changing cffi-allegro's implementation to match the semantics of the > other Lisps and (b) documenting these semantics in the manual. > > Cheers, > > -- > Luís Oliveira > http://kerno.org/~luis/ >