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Re: Emacs.app (from BZR) and GNUstep (from SVN)
From: |
Ivan Vučica |
Subject: |
Re: Emacs.app (from BZR) and GNUstep (from SVN) |
Date: |
Fri, 23 Dec 2011 10:07:24 +0100 |
I'm new to Xlib, but isn't Pixmap an integer? How could have one ever sent an
Objective-C message to an integer?
Shouldn't there be a wrapper around this integer if one wants to retain it?
Why bother retaining an object which is not a part of Objective-C reference
counting system?
I'm confused. :)
Regards,
Ivan Vučica
via phone
On 23. 12. 2011., at 02:47, Germán Arias <address@hidden> wrote:
> Currently Emacs.app crash at launch with GNUstep. It worked fine previously.
> I thought
> it was caused by changes in emacs, but someone has confirmed it works fine
> with the stable
> packages of GNUstep (I will test it tomorrow). So the problem could be in
> gnustep. Below I
> add the backtrace. The app crash because can't retain a pixmap.
>
> Here the backtrace:
>
> (gdb) backtrace
> #0 objc_msg_lookup (receiver=0x1400016, op=0x8482710)
> at /home/german/Instalados/GCC/gcc-4.6.0/libobjc/sendmsg.c:397
> #1 0x082657b0 in ns_retain_object (obj=0x1400016) at nsterm.m:466
> #2 0x08255ac2 in XGetImage (display=0x89af8e8, pixmap=0x1400016, x=0, y=0,
> width=64, height=64, plane_mask=4294967295, format=2) at image.c:160
> #3 0xb50a62ea in ?? () from /usr/lib/libcairo.so.2
> #4 0x089af8e8 in ?? ()
> #5 0x01400016 in ?? ()
> #6 0x00000000 in ?? ()
> (gdb)
>
>
> At frame 2 the function XGetImage is:
>
> XImagePtr
> XGetImage (Display *display, Pixmap pixmap, int x, int y,
> unsigned int width, unsigned int height,
> unsigned long plane_mask, int format)
> {
> /* TODO: not sure what this function is supposed to do.. */
> ns_retain_object (pixmap);
> return pixmap;
> }
>
> And at frame 1 the function ns_retain_object is:
>
> void
> ns_retain_object (void *obj)
> /* --------------------------------------------------------------------------
> Retain an object (callable from C)
> --------------------------------------------------------------------------
> */
> {
> [(id)obj retain];
> }
>
> Can this problem be related with the changes about how the images
> are handled? Any idea? Thanks.
>
>
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