Re: screen, try #1

[Joe Allen <jhallen at datapower dot com>]

Joe Allen wrote:

> > * Detached sessions are still tied to their parent consoles.  If I 
> > detach a session and then exit the parent shell, the shell doesn't 
> > exit and the zombie console window stays around.  If I force the 
> > console window to close, screen terminates.
> >  
> There's something broken with process groups in cygwin.  I had this 
> same problem in JOE, but I don't clearly remember
> what I had to do to fix it: make sure both setsid() and setpgrp() are 
> being called.  I think it had more to do with the order
> of opening the pty or tty vs. fork().  Fork first, then open the tty: 
> look at mpxmk() in tty.c in JOE for something that works.
>
> There were other weird problems: like try to suspend a sub-process and 
> the parent would get suspended.
Actually I think I remember: use login_tty() instead of setsid(), setpgrp().