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opening/reading a rtai fifo
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Date: -- (:)
From: Basile STARYNKEVITCH <basile@s...>
Subject: Re: [Caml-list] opening/reading a rtai fifo
Le Wed, May 24, 2006 at 06:47:33PM +0200, julien.michel@etu.univ-orleans.fr écrivait/wrote:
> Hello,
> I currently work on an embedded system, OS Linux 2.4-19 RTAI .
> 
> I'd like to open and read out an RTAI FIFO (called /dev/rtf/0)
> I used to do it with a "C" code such like:
> fd = open("/dev/rtf/0",O_RDONLY);
> read(fd,&f,sizeof(...)); etc...
> 
> For now, I would like to do that with Ocaml. For instance, to begin, a reading
> of the FIFO's first line:
> 
> let c = open_in "/dev/rtf/0" in
> let s = input_line c in
> print_string s;
> close_in c;
> 
> While executing this code, the application seems to run continuously, without
> printing anything out whereas it works while using a single text file instead of
> the fifo.

Julien probably forgot a 
   flush stdout 
at the end of his code. I sent him a longer email privately in french.

-- 
Basile STARYNKEVITCH         http://starynkevitch.net/Basile/ 
email: basile<at>starynkevitch<dot>net 
aliases: basile<at>tunes<dot>org = bstarynk<at>nerim<dot>net
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