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Re: pthreads and sockets - Cannot register window class error

On Wed, 5 May 2004, Brian Ford wrote:

> On Wed, 5 May 2004, Steve Thompson wrote:
> > On Wed, 5 May 2004, Christopher Faylor wrote:
> >
> > > Unless HOST is a numeric IP address, gethostbyname should be properly
> > > reentrant.  The only time gethostbyname is not thread safe is when it is
> > > resolving a numeric IP.
> >
> > I believe that gethostbyname(), since it is returning a pointer to a
> > statically allocated structure, cannot be thread safe under any
> > circumstances. I always wrap it with a mutex until I'm done with the
> > hostent structure.
> That's a good portable practice.  But, if your going to essentially call
> cgf a lyer, please at least check the source.  He uses a thread specific
> buffer to return that data.  It's obvious if you look.

Heaven forbid that I should do that; it certainly wasn't my meaning.
Apologies to cgf if it was taken that way. In any event, relying on a
feature that is particular to one implementation will always bite you in
the end.


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