From: "Berger, Daniel" <djberge@...>
Date: 2002-06-12T04:14:00+09:00
Subject: RE: hostent extension problem - returning the ip address



> -----Original Message-----
> From: ts [mailto:decoux@moulon.inra.fr]
> Sent: Tuesday, June 11, 2002 11:03 AM
> To: ruby-talk@ruby-lang.org
> Cc: ruby-talk@ruby-lang.org
> Subject: Re: hostent extension problem - returning the ip address
> 
> 
> >>>>> "B" == Berger, Daniel <djberge@qwest.com> writes:
> 
> B> Also, the eventual plan is to use the thread-safe versions 
> provided by
> B> individual vendors, e.g. gethostbyname_r() on Solaris.  I 
> thought I would
> B> start with a  basic version and work my way up from there. :)
> 
>  Well, even if you use gethostname_r() you must first 
> allocate the struct
>  and the buffer. You call gethostname_r(), create the result
>  (rb_str_new2()), free the struct and buffer and return the 
> result or call
>  rb_yield(). You don't need a Data_Wrap_Struct()
> 
> 
> Guy Decoux
> 

Various attempts at this suggestion (prior to posting) failed.  Now,
however, it seems to work fine.  Looking back, I think I was freeing memory
before I was finished with it. :(

I also need to have my eyes examined again.  I had rb_block_given() instead
of rb_block_given_p().  This caused in ld error when I would run it, which
led me to believe I had a memory issue somewhere - until I looked at the
error message more closely. :)

Thanks for the help.

Dan