[cells-gtk-devel] 64bit listbox problem

[jimmy brisson]

found this problem, replace stray :int's in the function def with 'gtype's

this fixed the last problem, now (test-gtk:gtk-demo runs.
thanks for your help,
Jimmy

On Thu, Aug 11, 2011 at 8:43 PM, jimmy brisson <theotherjimmy at gmail.com>wrote:

>
>
> On Thu, Aug 11, 2011 at 8:32 PM, Ramarren <ramarren at gmail.com> wrote:
>
>> This probably means that the GType width is wrong for 64 bits, which
>> is not entirely unexpected since it is defined like this:
>>
>> #if     GLIB_SIZEOF_SIZE_T != GLIB_SIZEOF_LONG || !defined __cplusplus
>> typedef gsize                           GType;
>> #else   /* for historic reasons, C++ links against gulong GTypes */
>> typedef gulong                          GType;
>> #endif
>>
>> which means it can be either an uint (at least I hope gsize is
>> consistently uint) or an ulong. On 32 bit machine they are the same,
>> on 64 bit not. I had assumed that the first branch is the usual and
>> defined gtype as gsize/uint. An easy fix would be to change
>> (cffi:defctype gtype gsize) to (cffi:defctype gtype gulong). But that
>> might break this on some other systems.
>>
>> Since I am not sure how to detect this without invoking the C
>> compiler, I have now added the change as a controllable feature with
>> ulong as a default and pushed to the repository. Please test it and
>> report if it fixes the memory fault.
>>
>> Jakub Higersberger
>>
>> On Thu, Aug 11, 2011 at 9:40 PM, jimmy brisson <theotherjimmy at gmail.com>
>> wrote:
>> > I have been prodding the memory fault problem on my 64bit machine ans
>> have
>> > narrowed it down to one function:
>> > gtk-list-store-newv
>> > when called like (gtk-ffi:gtk-list-store-new '(:string :string)) this
>> > function consistently produces unhandled memory fault errors (at
>> > #x4000000056 for '(:string :string)) when passed anything that is length
>> 2
>> > or more or contains strings (the '(:string :string) example is what
>> > (test-gtk:gtk-demo) calls).
>> > the type signature looks like a match to the header files on my system.
>> > for reference I am using sbcl 1.0.50 on Archlinux x86_64 with gtk and
>> sbcl
>> > compiled 64bit and a fresh (as of an hour ago) pull of cells-gtk3
>> > from https://github.com/Ramarren/cells-gtk3.git
>> > I am happy to help in any way I can and can provide more information if
>> > needed.
>> > Thanks for the great library,
>> > Jimmy
>> > --
>> > "Open-source software has fewer bugs because it admits the possibility
>> of
>> > bugs." Paul Graham
>> >
>> > _______________________________________________
>> > cells-gtk-devel site list
>> > cells-gtk-devel at common-lisp.net
>> > http://common-lisp.net/mailman/listinfo/cells-gtk-devel
>> >
>>
>
> that seems to have fixed the listbox error, but the same error (including
> that #x400... value)  appears after "query link :tree-selection-predicate
> cells-store nil" .
> I will pull it apart now to look for the source.
> thanks,
> Jimmy
>
>
> --
> "The closed-source world cannot win an evolutionary arms race with
> open-source communities, who can put orders of magnitude more skilled time
> into a problem." --Eric Raymond
>
> "Open-source software has fewer bugs because it admits the possibility of
> bugs." Paul Graham
>



-- 
"The closed-source world cannot win an evolutionary arms race with
open-source communities, who can put orders of magnitude more skilled time
into a problem." --Eric Raymond
"Open-source software has fewer bugs because it admits the possibility of
bugs." Paul Graham
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