protected function initSignalHandling(Injectables $injectables)
{
// we need to remember the injectables, for when we handle CTRL+C
$this->injectables = $injectables;
// setup signal handling
pcntl_signal(SIGTERM, array($this, 'sigtermHandler'));
pcntl_signal(SIGINT, array($this, 'sigtermHandler'));
}