Re: [cffi-devel] shareable-byte-vectors for Allegro

"Luís Oliveira" luismbo@gmail.com writes:

On Tue, Jan 13, 2009 at 8:50 AM, John Fremlin jf@msi.co.jp wrote:

...

After some internal discussion, we have come up with this patch

Pushed it, thanks!

Duane at Franz has helpfully come up with a decent way to get the real foreign address from a Lisp array.

(let ((x (make-array 10 :element-type '(unsigned-byte 8) :allocation :static-reclaimable))) (ff:fslot-address-typed :unsigned-char :lisp x))

We will test a modification of with-shareable-byte-vector to use this mechanism for ,ptr-var, hopefully it will work well.

There is still a question of the exact foreign-type we should use (:unsigned-char or :int or a dummy).