[slime-devel] Shutting down Swank within an Image.
asm198 at gmail.com
Fri Nov 4 17:24:27 UTC 2011
Is this a problem in Lisp? I know in C that's an issue since you're
just calling close on an integer but I had thought lisp would handle
that more gracefully. Although I guess the behavior isn't specified
since saving an image is outside the spec?
The problem with cleaning up _before_ saving the image is that you
can't use the image any more. I was hoping to have a solution that
didn't require an exit and restart every time an image was dumped.
On Fri, Nov 4, 2011 at 12:03 PM, Nikodemus Siivola
<nikodemus at random-state.net> wrote:
> On 4 November 2011 17:54, Andrew Myers <asm198 at gmail.com> wrote:
>> I've got an updated version that seems to work quite well:
>> (defun aux-save-image (image-name)
>> (let ((old-restart excl:*restart-init-function*))
>> (setf excl:*restart-init-function*
>> (lambda ()
>> (dolist (connection swank::*connections*)
>> (format t "closing ~a~%" connection)
>> (swank::close-connection connection nil nil))
>> (when old-restart
>> (funcall old-restart))))
>> (excl:dumplisp :name image-name)
>> (setf excl:*restart-init-function* old-restart)))
>> Is there anything wrong with doing things this way? I get the same
> Closing a connection on initialization is risky. Consider: what if the
> underlying FD has is already in use in the new image?
> You should clean up before you save, not when you initialize.
> -- Nikodemus
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