Re: Allowing GC in Allegro CL SMP during foreign function calls

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On Fri, 2 Aug 2013 01:54:20 +0100, Luís Oliveira said:

On Wed, Jul 31, 2013 at 10:15 AM, Stelian Ionescu sionescu@cddr.org wrote:

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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-107027... has 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.

I confirm it for LispWorks -- entering foreign code never prevents the GC from running in another Lisp thread if needed.