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From: Pascal Obry
Newsgroups: comp.lang.ada
Subject: Re: ISO/IEC 14519 - Ada POSIX binding
Date: 21 Jun 2003 15:01:06 +0200
Organization: Home - http://perso.wanadoo.fr/pascal.obry
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"Warren W. Gay VE3WWG" writes:
> Note the "uniX". Some things in the POSIX standard are difficult
> to implement on other platforms (Windows quickly comes to mind).
Indeed. I had lot of troubles implementing my Win32POSIX binding.
> > defines only the API and its semantics, not how the API is
> > implemented. If there is an underlying POSIX-compliant operating
> > system, then the implementation is trivial. If there is an OS that is
> > not POSIX-compliant, then the implementation is a thick binding to the
> > OS.
>
> There are a number of situations where this is difficult, yeah
> verily, maybe impossible. Its been a while since I've looked at
> this but can W2k/XP support fork(2), select(2) and or poll(2)
> APIs for example?
No. There is also some problems with file locking if my memory is right,
and some package just can't* be implemented on Win32.
Pascal.
* Of course it is always possible (see Cygwin for example) but the work will
be very big. We need to provides a complete POSIX emulation not just a
binding.
--
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