Date: Fri, 17 Nov 1995 10:17:49 +0100 (MET) From: Didier Derny <didier@omnix.fr.org> To: Terry Lambert <terry@lambert.org> Cc: joerg_wunsch@uriah.heep.sax.de, hackers@FreeBSD.ORG Subject: Re: pty Message-ID: <Pine.BSF.3.91.951117101009.3126A-100000@zapata.omnix.fr.org> In-Reply-To: <199511161859.LAA03449@phaeton.artisoft.com>
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On Thu, 16 Nov 1995, Terry Lambert wrote:
> > > > Is there any possibility to have more than 256 ptys ?
> > > > Is there any trick to find the next available pty without having to
> > > > try them all ?
> > >
> > > Implement a cloning pty driver.
> >
> > In fact I have to control 32 pty with the same process. It might be
> > more interesting for me to write a driver to multiplex 32 slaves on only
> > one master.
>
> Er. This makes no sense.
>
> Unless your program is not going to distinguish between slaves?
>
> I'd think the process would care which is which because of implied state.
>
>
> Terry Lambert
> terry@lambert.org
> ---
> Any opinions in this posting are my own and not those of my present
> or previous employers.
>
the data would be send and received on the pty side as small blocks.
each block would be delimited with STX an ETX
example:
STX CODE CHAN DATA ETX
CODE: indicates the nature of the block
start a new connection, data, or disconnect
CHAN: ttyp number
It's a protocol wildely use in france for minitel servers.
(ASM protocol)
either I write a program to control 32 pty and feed them with the data
from the ASM box or I control only one special pty an the driver do the
job...
+---------------------+
| Didier Derny |
| didier@omnix.fr.org |
+---------------------+
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