On Fri, Feb 26, 2010 at 03:19:19PM -0700, David S. Ahern wrote:
> Date: Fri, 26 Feb 2010 15:19:19 -0700
> From: "David S. Ahern" <daah...@cisco.com>
> To: Shahar Havivi <shah...@redhat.com>
> CC: qemu-devel@nongnu.org, Dor Laor <dl...@redhat.com>
> Subject: Re: [Qemu-devel] [PATCH] Restore terminal attributes for tty based
> monitor
>
>
>
>
>
> On 02/26/2010 01:04 PM, Shahar Havivi wrote:
> > Fix codding style
> > ---
> > qemu-char.c | 9 +++++++++
> > 1 files changed, 9 insertions(+), 0 deletions(-)
> >
> > diff --git a/qemu-char.c b/qemu-char.c
> > index 4169492..4533887 100644
> > --- a/qemu-char.c
> > +++ b/qemu-char.c
> > @@ -1002,6 +1002,7 @@ static void tty_serial_init(int fd, int speed,
> > speed, parity, data_bits, stop_bits);
> > #endif
> > tcgetattr (fd, &tty);
> > + oldtty = tty;
> >
> > #define check_speed(val) if (speed <= val) { spd = B##val; break; }
> > speed = speed * 10 / 11;
> > @@ -1173,6 +1174,11 @@ static int tty_serial_ioctl(CharDriverState *chr,
> > int cmd, void *arg)
> > return 0;
> > }
> >
> > +static void tty_exit(void)
> > +{
> > + tcsetattr(0, TCSANOW, &oldtty);
> > +}
> > +
> > static void qemu_chr_close_tty(CharDriverState *chr)
> > {
> > FDCharDriver *s = chr->opaque;
> > @@ -1207,6 +1213,9 @@ static CharDriverState *qemu_chr_open_tty(QemuOpts
> > *opts)
> > }
> > chr->chr_ioctl = tty_serial_ioctl;
> > chr->chr_close = qemu_chr_close_tty;
> > + if (!term_atexit_done++) {
> > + atexit(tty_exit);
> > + }
> > return chr;
> > }
> > #else /* ! __linux__ && ! __sun__ */
> > --
> > 1.6.3.3
> >
>
> If qemu is invoked with both stdio and one or more host tty's only the
> last one referenced is reset one exit. Also, shouldn't the attributes be
> reset when the device is closed as opposed to exit? ie., a device
> connected to a tty chardev is removed via the monitor.
>
> David
stdio have the same handling code:
http://git.savannah.gnu.org/cgit/qemu.git/tree/qemu-char.c#n738
Shahar
