Re: [Qemu-devel] [PATCH] Add chardev option to disable signal.

[Anthony Liguori]

Kusanagi Kouichi wrote:
> If I am using vga and serial which is stdio and hit C-c on
> serial console, qemu terminates. That is annoying for me.
> So make it configurable whether signal is generated when C-c is hit.
>
> Signed-off-by: Kusanagi Kouichi <address@hidden>
> ---
>  qemu-char.c   |    6 +++---
>  qemu-config.c |    3 +++
>  2 files changed, 6 insertions(+), 3 deletions(-)
>
> diff --git a/qemu-char.c b/qemu-char.c
> index 8084a67..dd23e63 100644
> --- a/qemu-char.c
> +++ b/qemu-char.c
> @@ -727,7 +727,7 @@ static void term_exit(void)
>      fcntl(0, F_SETFL, old_fd0_flags);
>  }
>  
> -static void term_init(void)
> +static void term_init(QemuOpts *opts)
>  {
>      struct termios tty;
>  
> @@ -740,7 +740,7 @@ static void term_init(void)
>      tty.c_oflag |= OPOST;
>      tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
>      /* if graphical mode, we allow Ctrl-C handling */
> -    if (display_type == DT_NOGRAPHIC)
> +    if (!qemu_opt_get_bool(opts, "signal", display_type != DT_NOGRAPHIC))
>          tty.c_lflag &= ~ISIG;
>   

Would be nice to eliminate the DT_NOGRAPHIC check here.  In fact, 
looking at the other nographic check, they look bogus.

So how about eliminating DT_NOGRAPHIC entirely and replacing it with 
DT_NONE + appropriate serial config?

Regards,

Anthony Liguori