sub check_app {
    my ($self, $app) = @_;

    # Ignore if this application was never started
    # or was intentionally stopped
    if(!defined($app->{handle})) {
        return $self->start_app($app);
    }

    # First, check if the process exited
    if($app->{handle}->Wait(1)) {
        # Process exited, so, restart
        print "Process exit detected: " . $app->{description} . "!n";
        return $self->start_app($app);
    }

    # All ok, just return true
    return 1;
}