[cl-store-devel] "Cannot store objects of type SYSTEM-AREA-POINTER with backend cl-store

[Sean Ross]

Yes, this is caused by GSLL holding pointers to data in memory which  
cl-store is unable to serialise. To serialise them you would have to  
either extend the cl-store backend to handle these marrays in a  
special way or convert them to matrices.

Sean



On 9 May 2009, at 18:41, Malcolm Reynolds <malcolm.reynolds at gmail.com>  
wrote:

> Hi
>
> I've been receiving this error when trying to save out a matrix of the
> format used inside GSLL (GNU Scientific Library for Lisp) using
> cl-store - this can be reproduced by doing the following:
>
> (cl-store:store (gsll:make-marray 'double-float :initial-contents '((1
> 2 3) (4 5 6) (7 8 9))) "blahblah")
> =>
> "Cannot store objects of type SYSTEM-AREA-POINTER with backend cl- 
> store"
>
> I googled the error message but all that turned up was various copies
> of the source code.
>
> I guess the error is due to GSLL doing something funky with it's data
> structures in order to call C functions on them.. is there any way
> around this problem (perhaps by using a different backend in the
> optional argument to store)? If not I can just convert matrices to and
> from gsll format as I load them, but it would be handy to avoid having
> to do this.
>
> Thanks in advance,
>
> Malcolm
>
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