From: Rolando Abarca <funkaster@...>
Date: 2009-05-08T03:13:25+09:00
Subject: Re: storing c pointers in ruby hash


No luck yet with this (still banging my head with the keyboard).
After looking at swig source code and reading this:

<http://sourceforge.net/tracker/index.php?func=detail&aid=2034216&group_id=1645&atid=101645 
 >

I realized that using a ruby hash was a bad idea. Although I had  
tested using a simple pointer, I changed the approach using a  
NSDictionary. I also added some debug output, and the VALUE I get back  
from the hash is the same, but If I call any function on that object,  
I get a crash:

#0  0x000a56c6 in st_lookup (table=0x0, key=760, value=0xbfffe20c) at / 
Users/rolando/Documents/GFF/ShinyCocos/ruby/st.c:286
#1  0x00105702 in search_method (klass=92295000, id=760, klassp=0x0)  
at vm_method.c:229
#2  0x0010574c in rb_get_method_body (klass=92295000, id=760,  
idp=0xbfffe2b4) at vm_method.c:256
#3  0x00107f9d in rb_call0 (klass=92295000, recv=92302820, mid=760,  
argc=0, argv=0x0, scope=1, self=6) at vm_eval.c:205
#4  0x00107e4b in rb_call (klass=92295000, recv=92302820, mid=760,  
argc=0, argv=0x0, scope=1) at vm_eval.c:255
#5  0x00108273 in rb_funcall (recv=92302820, mid=760, n=0) at  
vm_eval.c:427
#6  0x000d1811 in sc_ruby_instance_for (hash=0x10622e0,  
obj1=0x5778810) at SC_common.h:86

... should I fill a bug report? :-S
I'll try to put a simple demo file to simplify the example (although  
the latest code that reflects this is in <http://github.com/funkaster/shinycocos/tree/master 
 >, you might need iPhone SDK to test it though).

Thanks for any tip!
-- 
Rolando Abarca M.