From: Mark Aufflick <mark-ruby@...>
Date: 2006-05-22T09:42:30+09:00
Subject: Re: segfault when calling rb_eval_string_protect with a non-null state pointer

Hi Matz,

Thanks for the reply. It turns out that at 10am I am thinking more
clearly than I was at 1am!

On your prompting I went back to look at my initialisation code I
realised that I had in fact missed initialising a naviserver string -
so nothing to do with ruby at all.

It's now working fine - I can't believe it's so easy! Where should I
be looking for information on embedding ruby with respect to things
like thread safety etc.?

Another quick question - to log ruby evaluation errors I'm doing:

rb_eval_string_protect(rb_code_string, &rb_state);
if (rb_state) {
   Ns_Log(Debug, "ruby eval failed : %d", rb_state);
   Ns_Log(Debug, "ruby $! : %s", STR2CSTR(rb_inspect(rb_gv_get("$!"))));
}

Do you think that's the best way? I've seen code that extracts the
message directy, but I figure that this is the most future proof way.

Cheers,

Mark.

On 5/22/06, Yukihiro Matsumoto <matz@ruby-lang.org> wrote:
> Hi,
>
> In message "Re: segfault when calling rb_eval_string_protect with a non-null state pointer"
>     on Sun, 21 May 2006 23:49:43 +0900, "Mark Aufflick" <mark-ruby@aufflick.com> writes:
>
> |I'm beginning to work on a ruby module for aolserver, and I have the
> |following basic issue.
>
> Without the source code to reproduce the problem, we cannot help
> much.  Did you initialize the interpreter properly before calling
> rb_eval_string_protect()?
>
>                                                         matz.
>
>
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Mark Aufflick
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