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X-Authentication-Warning: slinky.cs.nyu.edu: pechtcha owned process doing -bs
Date: Mon, 19 Jan 2004 20:22:49 -0500 (EST)
From: Igor Pechtchanski <pechtcha AT cs DOT nyu DOT edu>
Reply-To: cygwin AT cygwin DOT com
To: cygwin AT cygwin DOT com
Subject: Re: [ANNOUNCEMENT] Updated: cygwin-1.5.6-1
In-Reply-To: <400C7C99.570C1402@dessent.net>
Message-ID: <Pine.GSO.4.56.0401192020370.14918@slinky.cs.nyu.edu>
References: <20040119155641 DOT 814B9400172 AT redhat DOT com> <400C7C99 DOT 570C1402 AT dessent DOT net>
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On Mon, 19 Jan 2004, Brian Dessent wrote:

> Christopher Faylor wrote:
> >
> > I've made a new version of the Cygwin DLL and associated utilities
> > available for download.  As usual, a list of what has changed is below.
>
> Again, thanks for all your work.

Ditto!

> > - Fix problems programs which need a console available when running on a
> > pty.  (Christopher Faylor)
>
> After upgrading, I noticed a difference with the tty usage compared to
> 1.5.5.  Now, don't get me wrong, nothing's broke that I can tell, but
> I'm just a little bit curious about the following:
>
> When I open an rxvt shell prompt, it appears that each one has allocated
> two ttys.  For example, with 3 rxvts running:
>
> $ w
>  16:51:19 up 15 days, 23:19,  6 users,  load average: 0.00, 0.00, 0.00
> USER     TTY      FROM              LOGIN@   IDLE   JCPU   PCPU  WHAT
> brian    tty0     BOOCH            15:57    0.00s  0.00s   ?     -
> brian    tty1     :0               15:57    0.00s  0.00s   ?     -
> brian    tty2     BOOCH            15:58    0.00s  0.00s   ?     -
> brian    tty3     :0               15:58    0.00s  0.00s   ?     -
> brian    tty4     BOOCH            16:51    0.00s  0.00s   ?     -
> brian    tty5     :0               16:51    0.00s  0.00s   ?     -
>
> I don't have an X server running at all.  My DISPLAY variable is set to
> "localhost:0.0" but it doesn't seem to matter if I remove that from
> .profile.  My $CYGWIN is set to "ntsec tty" and this is under w2k:
>
> CYGWIN_NT-5.0 booch 1.5.6(0.108/3/2) 2004-01-19 00:43 i686 unknown
> unknown Cygwin
>
> So, just out of curiosity, why two ttys for each rxvt?
> Brian

I don't know about the 2 tty issue, but ":0" is rxvt's internal name for
"no display".  In fact, IIUC, if you actually do have an X server running
on display ":0", rxvt will pop up a Windows window if the DISPLAY is set
to that value.  Fortunately, most X servers use the screen number as well
(i.e., at least ":0.0"), so that problem shouldn't come up in real life.
	Igor
-- 
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     |,4-  ) )-,_. ,\ (  `'-'		Igor Pechtchanski, Ph.D.
    '---''(_/--'  `-'\_) fL	a.k.a JaguaR-R-R-r-r-r-.-.-.  Meow!

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