Re: Workaround for Suspended (tty output) in python?

[Valery Ushakov <uwe%stderr.spb.ru@localhost>]

On Wed, Jan 03, 2024 at 18:25:44 +0300, Valery Ushakov wrote:

> I've just got bitten by this when updating packages:
> 
>   http://mail-index.netbsd.org/pkgsrc-users/2024/01/03/msg038706.html
> 
> On Sun, Dec 31, 2023 at 03:48:00 +0000, Taylor R Campbell wrote:
> 
> > > Date: Sun, 31 Dec 2023 02:25:06 +0000 (UTC)
> > > From: John Klos <john%klos.com@localhost>
> > > 
> > > #0  0x000070df4cd7f0da in ioctl () from /usr/lib/libc.so.12
> > 
> > Do you know which ioctl it is?  Can you ktrace it?
> 
> TIOCGETP, I would presume.  readline-8.1.2/rltty.c:

Ah, I was not paying attention (this is like n-th level diversion from
what I actually wanted to do, sorry).


static int
get_tty_settings (int tty, TIOTYPE *tiop)
{
  set_winsize (tty);
...
}

/* Dummy call to force a backgrounded readline to stop before it tries
   to get the tty settings. */
static void
set_winsize (tty)
     int tty;
{
#if defined (TIOCGWINSZ)
  struct winsize w;

  if (ioctl (tty, TIOCGWINSZ, &w) == 0)
      (void) ioctl (tty, TIOCSWINSZ, &w);
#endif /* TIOCGWINSZ */
}


-uwe