From: Iain Dooley <idoo4002@...>
Date: 2005-08-29T21:36:50+09:00
Subject: Re: catching segmentation faults from Ruby



ts wrote:
>>>>>>"I" == Iain Dooley <idoo4002@mail.usyd.edu.au> writes:
> 
> 
> I> it appears that i can't pass the name of a C function to rb_protect. 
> 
>  use a typecast

okay, so i was able to use:

rb_protect((VALUE (*)(VALUE))executeApplication,(VALUE)0,&status);

thanks very much for your advice.

however, we are back to the original problem, because what is actually 
happening is not a ruby exception, but is in fact a segmentation fault, 
caused by a line such as this:

@parent.child("nonexistentChildWidget").text

because this code is being edited at runtime, if the user mistypes the 
name of a child for example, then tests the code, i want an error to pop 
saying "there was an error in your code" or something. at the moment, it 
dies like this:

matt_test.rb:9: [BUG] Segmentation fault
ruby 1.8.2 (2004-12-25) [i386-freebsd5]

Abort (core dumped)

so i need a way to catch a segmentation fault, not ruby exceptions.

cheers

iain