Message-ID: <006a01bee769$8d012f40$0a01a8c0@dchrist.dnai.com>
From: "David Christensen" <dchrist AT dnai DOT com>
To: <djgpp AT delorie DOT com>
Subject: Re: djgpp, Win98, Perl, and serial port
Date: Sun, 15 Aug 1999 14:59:44 -0700
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Reply-To: djgpp AT delorie DOT com

Eli:

Thanks for the reply  :-)


>I don't know anything about how Perl implements the functions you are
>trying to use (e.g., what exactly does `sysopen' do).  It seems like a
>good idea to write a short test C program that does similar things and
>see what happens.  Then we will at least know whether the problems are in
>DJGPP or in Perl.

OK  I'll add it to the list of things to try  :-)


>Btw, why did you need O_EXCL?

I've done C/C++ serial stuff under Win32, and the API docs recommend opening
the serial port in exclusive mode  to avoid the confusion of two processes/
threads trying to use one port at the same time.  I just assumed that the
same principal applied to DOS.  Am I missing something here?


BTW Perl -V indicates "djgpp v2 port (perl5004) by Laszlo Molnar, 1997".  Do
you know which newsgroup(s) he Laszlo hangs out on?

David Christensen
dchrist AT dnai DOT com