On Mon, Jan 18, 2010 at 09:17:41PM +0100, Szymon Janc wrote:
> Attached patch makes sleep -i 0 "interruptible".
> It allows to have 0 sleep yet selectable multiboot config
> i.e.
>
> if sleep --interruptible 0 ; then
> set timeout=0
> fi
> --- grub_orig/grub2-1.98~experimental.20100111.1/commands/sleep.c
> 2010-01-11 20:01:15.000000000 +0100
> +++ grub/grub2-1.98~experimental.20100111.1/commands/sleep.c 2010-01-18
> 20:37:56.107189595 +0100
> @@ -44,19 +44,26 @@
> grub_printf ("%d ", n);
> }
>
> +static int
> +do_check_key_press (void)
> +{
> + return (grub_checkkey () >= 0
> + && GRUB_TERM_ASCII_CHAR (grub_getkey ()) == GRUB_TERM_ESC);
> +}
On the PC architecture, you can't check for Escape without having some
kind of delay. Only modifier keys can be checked instantaneously.
http://bazaar.launchpad.net/~ubuntu-core-dev/ubuntu/lucid/grub2/lucid/annotate/head%3A/debian/patches/951_sleep_shift.diff
has an alternative patch which may be helpful, and links to previous
discussions.
--
Colin Watson [cjwat...@ubuntu.com]
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