Date: Sun, 15 Aug 1999 13:47:57 +0300 (IDT)
From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
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To: David Christensen <dchristensen AT california DOT com>
cc: djgpp AT delorie DOT com
Subject: Re: djgpp, Win98, Perl, and serial port
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On Fri, 13 Aug 1999, David Christensen wrote:

> 1. It prints "entering while loop ..." and then hogs the machine
> (typing on Hyperterminal 2 doesn't show up in Bash;  ctrl+C,
> ctrl+D, and ctrl+Z don't work; need 3-finger salute to kill it), or
> 
> 2. It prints "entering while loop ...", prints "leaving while loop
> ...", and then exits (encountered EOF on HANDLE?).

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.

Btw, why did you need O_EXCL?