FreeTDS Development Group

[Dossy <dossy AT panoptic.com>]

On 2002.06.13, James K. Lowden <jklowden AT speakeasy.org> wrote:
> On Thu, 13 Jun 2002 16:12:56 -0400 "Dossy" <dossy AT panoptic.com> wrote:
> 
> > While we're at it, in a greedy fit of self-interest, can I ask that
> > thread-safe versions of the convert functions be created, so I can
> > ditch the ones I hacked together for nsfreetds?
> 
> I have a thread-poor system.  Could you be more explicit about what's not
> thread-safe in convert.c?  I'm familiar with threading issues in general,
> but not with the unix system calls or structure names.  

convert.c:

     56 /*
     57 this needs to go...
     58 it won't handle binary or text/image when they are added
     59 it's not thread safe
     60 it works for the moment though til i decide how i really want to
handle it
     61 */
     62 static TDS_CHAR tmp_str[4096];

Global variables are not thread-safe.

I just found this URL about "Writing Reentrant and Thread-Safe Code"
which might be worth a quick read:

    
http://www.unet.univie.ac.at/aix/aixprggd/genprogc/writing_reentrant_thread_safe_code.htm

-- Dossy

-- 
Dossy Shiobara                       mail: dossy AT panoptic.com 
Panoptic Computer Network             web: http://www.panoptic.com/ 
  "He realized the fastest way to change is to laugh at your own
    folly -- then you can let go and quickly move on." (p. 70)