Re: [Vala] problem using sleep

[Frederik <scumm_fredo gmx net>]

a a wrote:
> Hello.
> I'd like to sleep for X minutes and then run a command as root.
> I've tried this with no success:
> Process.spawn_command_line_async("sleep "+time_min+"m ; gksudo
> '/etc/acpi/hibernate.sh'");
> (in the terminal it works)
>
> How should I do it?
>
> Thanks :)

Hi,

you can't concatenate commands as you would do it in a shell.

If your program is running a GLib main loop (e.g. a GTK+ program or if
you're using GLib.MainLoop directly) then you can set a timeout:

-----------------------------------------------------------------
int time_min = 5;

Timeout.add (time_min * 1000 * 60, () => {
        try {
                Process.spawn_command_line_async ("gksudo '/etc/acpi/hibernate.sh'");
        } catch (Error e) {
                stderr.printf ("%s\n", e.message);
        }
        return false;
});
-----------------------------------------------------------------

If you're returning 'true' instead of 'false' the process will be
spawned repeatedly every x minutes.


Best regards,

Frederik