From ripley@stats.ox.ac.uk  Sat Nov  9 22:01:52 2002
From: ripley@stats.ox.ac.uk (ripley@stats.ox.ac.uk)
Date: Sat, 9 Nov 2002 22:01:52 +0000 (GMT)
Subject: (PR#2275) Re: Bug#168259: r-base-core: help.start() assumes
 netscape is installed
In-Reply-To: <20021109214333.GA7627@sonny.eddelbuettel.com>
Message-ID: <Pine.LNX.4.31.0211092147250.14000-100000@gannet.stats>

On Sat, 9 Nov 2002, Dirk Eddelbuettel wrote:

> On Sat, Nov 09, 2002 at 09:17:47PM +0000, ripley@stats.ox.ac.uk wrote:
> > > > and netscape no longer allows multiple executables to run.
> > >
> > > I just confirmed that mozilla does. E.g.
> > >   mozilla http://bbc.com & sleep 3; mozilla -remote "openurl(http://cnn.com)"
> > > happily switches the running session from the BBC to CNN.
> >
> > That's not running multiple executables: that is remote-controlling an
> > existing one.  Not only that, the second command takes over any existing
> > mozilla on the display, even one running on a completely different machine
> > (e.g. a session on a remote Solaris box).  It's the last part that is
> > fatal to the earlier help.start/help scheme.
> >
> > For me, on Linux, both Mozilla 1.1 and Netscape 7.0 refuse to allow me to
> > run a new copy if one is already running.  This is an issue as the
> > help.start/help interface tries to run a new copy if running R remotely.
> >
> > They do allow multiple invocations under Windows and seem only to run one
> > copy.
> >
> > Try mozilla http://bbc.com & sleep 20; mozilla http://cnn.com.
> > I get a dialog box telling me a copy is already running under my profile
> > and refusing to allow me to run another one.
>
> This works for me! I get two distinct ;frames'. And "pstree -p" shows only
> one main process with one child which has four other child processes.  So it
> looks as if they are sharing.
>
> [ some more snooping ]
>
> Indeed. Once I start the 2nd one, ps show mozilla-remote as a parallel
> process. This then seems to migrate into the earlier mozilla even when that
> one was started in a different shell.  File->Quit also brings both frames to
> an end.  mozilla-1.0.0 as in Debian testing.

That's what happened a year or so ago, and in Netscape 6.2.  But that is
not the current mozilla release, if Debian use Mozilla's numbering scheme.

-- 
Brian D. Ripley,                  ripley@stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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(PR#2275) Re: Bug#168259: r-base-core: help.start() assumes netscape is installed
ripley@stats.ox.ac.uk