CVS Repository (was: Re: [PD-dev] ugly segfaults with external...)
=?X-UNKNOWN?Q?g=FCnter_geiger?=
geiger at xdv.org
Thu Jul 25 18:56:03 CEST 2002
There are instructions at pure-data.sf.net,
once you have your external cvs'd it is pretty easy to use cvs,
waiting to hear from you, we have enough space there :)
And if you have problems with the procedure, tell me ...
Guenter
On Thu, 25 Jul 2002, Ben Bogart - FMPM/F1999 wrote:
> Hi Guenter,
>
> Frankly I never thought of releasing these externals, partially because
> I'm not sure if anyone would be interested, partially because I have no
> self-confidence with C, and have the feeling that a lot of the code I
> write is not stable. (just because it bahaves with me, does not mean it
> would be for everyone!)
>
> Also I've never used CVS, but I'm sure its worth figuring out.
>
> So I guess for the good of the community I should just jump in eh?
>
> sooo where do I start? ( I just searched for "CVS" on the mailinglist
> archive and it returned no matches for the past 4 months??)
>
> Thanks for the push Guenter. ;)
>
> Ben
>
>
> On Thu, 25 Jul 2002, =?X-UNKNOWN?Q?g=FCnter_geiger?= wrote:
>
> >
> > Dear Ben,
> >
> > scanning trought the code I couldn't find any strange things. Instead of
> > being useful on this side, I have a suggestion that would make tracking
> > down these things easier. That is ... :)
> >
> > Is it possible to put this in the pure-date CVS ?
> >
> > The advantage in this case would be that
> > 1) you just tell your problem on the list, no need of gdb dumps, cleaned
> > up code examples, etc ...
> > 2) everyone working with the CVS will have your code automatically through
> > the cvs upgrade command and can test it immediately, and if there is a bug
> > it can be fixed directly.
> > 3) We dont have to copy/paste the code and write a makefile to compile and
> > look what it does
> >
> > Well, thats all of the propaganda, if there are things that speak against
> > it, please let me know.
> >
> > Greetings,
> >
> > Guenter
> >
> >
> > On Wed, 24 Jul 2002, Ben Bogart - FMPM/F1999 wrote:
> >
> > > Hi all,
> > >
> > > I seem to be getting some very ugly segfaults from strange interactions
> > > between my chaos math externals (lorenz, henon, rossler).
> > >
> > > Each external works perfectly on thier own, but if I put more than one in
> > > a patch, or changle the name of one to another in an object box I get
> > > strange values output (like + or nan) , or segfaults.
> > >
> > > I'm just sending the henon external, the other two work just the same but
> > > with different equations.
> > >
> > > Here is my Source:
> > > ------------------
> > >
> > > #include "m_pd.h"
> > > #include <math.h>
> > > #include <stdlib.h>
> > >
> > > t_class *myclass;
> > >
> > > typedef struct thisismystruct
> > > {
> > > t_object myobj;
> > > double a,b,lx0,ly0;
> > > t_outlet *y_outlet;
> > > } mystruct;
> > >
> > > void calculate(mystruct *x)
> > > {
> > > double lx0,ly0,lx1,ly1;
> > > double a,b;
> > >
> > > a = x->a;
> > > b = x->b;
> > > lx0 = x->lx0;
> > > ly0 = x->ly0;
> > >
> > > lx1 = (ly0 + 1) - (a * pow(lx0,2));
> > > ly1 = b * lx0;
> > > x->lx0 = lx1;
> > > x->ly0 = ly1;
> > >
> > > outlet_float(x->myobj.ob_outlet, (t_float)lx1);
> > > outlet_float(x->y_outlet, (t_float)ly1);
> > > }
> > >
> > > void reset(mystruct *x, t_floatarg a, t_floatarg b)
> > > {
> > > x->a = (double)a;
> > > x->b = (double)b;
> > > x->lx0 = 1;
> > > x->ly0 = 1;
> > > }
> > >
> > > void *henon_new(void)
> > > {
> > > mystruct *x = (mystruct *)pd_new(myclass);
> > > x->a = 1.4;
> > > x->b = 0.3;
> > > x->lx0 = 1;
> > > x->ly0 = 1;
> > >
> > > outlet_new(&x->myobj, &s_float); /* Default float
> > > outlet */
> > > x->y_outlet = outlet_new(&x->myobj, &s_float);
> > > return (void *)x;
> > > }
> > >
> > >
> > > void henon_setup(void)
> > > {
> > > myclass = class_new(gensym("henon"), /* symname is the
> > > symbolic name */
> > > (t_newmethod)henon_new, /* Constructor Function */
> > > 0, /* Destructor
> > > Function */
> > > sizeof(mystruct), /* Size of the
> > > structure */
> > > CLASS_DEFAULT, /* Graphical
> > > Representation */
> > > 0); /* 0 Terminates
> > > Argument List */
> > >
> > > class_addbang(myclass, (t_method)calculate);
> > > class_addmethod(myclass,B
> > > (t_method)reset,
> > > gensym("reset"),
> > > A_DEFFLOAT,
> > > A_DEFFLOAT,
> > > 0);
> > > }
> > >
> > > Here is my GDB Output:
> > > ----------------------
> > >
> > > Program received signal SIGSEGV, Segmentation fault.
> > > [Switching to Thread 1024 (LWP 5262)]
> > > 0x0808a0d7 in outlet_float (x=0x80e04e0, f=-0) at m_obj.c:343
> > > 343 pd_float(oc->oc_to, f);
> > > (gdb) where
> > > #0 0x0808a0d7 in outlet_float (x=0x80e04e0, f=-0) at m_obj.c:343
> > > #1 0x400175a0 in calculate () from
> > > /usr/local/lib/pd/extra/rossler.pd_linux
> > > #2 0x0808a007 in outlet_bang (x=0x80e0288) at m_obj.c:311
> > > #3 0x08072473 in bng_bout2 (x=0x80e01b8) at g_7_guis.c:1211
> > > #4 0x08072681 in bng_click (x=0x80e01b8, xpos=184, ypos=115, shift=0,
> > > ctrl=0,
> > > alt=0) at g_7_guis.c:1254
> > > #5 0x080726ce in bng_newclick (z=0x80e01b8, glist=0x80dfc00, xpix=184,
> > > ypix=115,
> > > shift=0, alt=0, dbl=0, doit=1) at g_7_guis.c:1260
> > > #6 0x0806a54d in gobj_click (x=0x80e01b8, glist=0x80dfc00, xpix=184,
> > > ypix=115,
> > > shift=0, alt=0, dbl=0, doit=1) at g_editor.c:62
> > > #7 0x0806b5e9 in canvas_doclick (x=0x80dfc00, xpos=184, ypos=115,
> > > which=1, mod=0,
> > > doit=1) at g_editor.c:455
> > > #8 0x0806bd84 in canvas_mousedown (x=0x80dfc00, xpos=184, ypos=115,
> > > which=1, mod=0)
> > > at g_editor.c:606
> > > #9 0x08089012 in pd_typedmess (x=0x80dfc00, s=0x80d41d0, argc=0,
> > > argv=0x80cb308)
> > > at m_class.c:669
> > > #10 0x080681c7 in guiconnect_anything (x=0x80dfad8, s=0x80d41d0, ac=4,
> > > av=0x80cb2e8)
> > > at g_guiconnect.c:70
> > > #11 0x08089218 in pd_typedmess (x=0x80dfad8, s=0x80d41d0, argc=4,
> > > argv=0x80cb2e8)
> > > at m_class.c:690
> > > #12 0x0808c984 in binbuf_eval (x=0x80de808, target=0x80dfad8, argc=0,
> > > argv=0x0)
> > > at m_binbuf.c:570
> > > #13 0x08091ca4 in socketreceiver_read (x=0x80de828, fd=8) at s_inter.c:307
> > > #14 0x0809164a in sys_domicrosleep (microsec=0, pollem=1) at s_inter.c:144
> > > #15 0x08092815 in sys_pollgui () at s_inter.c:732
> > > #16 0x0808fee6 in m_scheduler (nodacs=0) at m_sched.c:441
> > > #17 0x080904f9 in sys_main (argc=1, argv=0xbffff7e4) at s_main.c:258
> > > #18 0x08094356 in main (argc=1, argv=0xbffff7e4) at s_entry.c:9
> > > #19 0x4007a9ed in __libc_start_main () from /lib/libc.so.6
> > >
> > >
> > > Thanks for your help, I would appriciate any help/pointers anyone would
> > > provide.
> > >
> > > Thanks
> > > Ben
> > >
> > >
> > >
> > > B. Bogart
> > > ---------
> > >
> > >
> > >
> > > _______________________________________________
> > > PD-dev mailing list
> > > PD-dev at iem.kug.ac.at
> > > http://iem.kug.ac.at/cgi-bin/mailman/listinfo/pd-dev
> > >
> >
> >
>
>
>
> B. Bogart
> ---------
>
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