Multiple instances of Kaffe

[Edward Llewellyn]

I think y'all are probably right - it's a problem specific to NT/cygwin.  We
are running into other problems 
(crashes, assertion failures) with the Kaffe version on NT/cygwin.  It looks
like I'll be able to get the
custom version of kaffe for win32, which is compiled with the Visual C++
compiler, which hopefully will
work better.  In any case, I won't have to learn a new debugger to debug the
code.

Thanks for the help.

> -----Original Message-----
> From:	Godmar Back [SMTP:gback at cs.utah.edu]
> Sent:	Thursday, January 20, 2000 9:34 PM
> To:	kaffe at rufus.w3.org
> Subject:	Re: Multiple instances of Kaffe
> 
> 
> > 
> > 
> > Edward Llewellyn writes:
> > > Is it possible we could run multiple instances of Kaffe on the same
> Java
> > > program?  The reason I ask is because
> > > we have an embedded app with two screens (for two users).  We may need
> to
> > > run multiple copies of
> > > a browser, one for each user, or possibly multiple copies of other
> programs.
> > > 
> > > I tried running Kaffe twice on the same .class file, and while this
> > > sometimes works, it also sometimes
> > > crashes with a NullPointerException on one of the instances.   What's
> the
> > > problem here?  Is Kaffe
> > > not reenterent?  I would think at least some of it would be in order
> to
> > > support multiple threads
> > > in a single app.
> > > 
> > > I attempted this on Windows NT, with Kaffe compiled with Cygnus
> Solutions'
> > > cygwin32.  I tried running
> > > Kaffe both in one bash shell (with one in the background) and two bash
> > > shells.
> > 
> > This sounds like an NT/cygwin problem.. on UNIX of course you can
> > always run the same code in two different processes.
> > 
> 
> I believe that's not quite what was asked.
> 
> If kaffe, for instance, opened .class files in exclusive mode (and kept
> them open), you couldn't run two instances of kaffe on the same .class
> files.
> This is possible in Unix also.  I don't think we do that, though.
> 
> I also suspect it's a problem that's specific to kaffe on NT/cygwin.
> Make sure you're not searching in the wrong direction; maybe it's an 
> intermittent problem that's not restricted to the second instance at all.
> 
> 	- Godmar