WPCOM_VIP_Cache_Manager::init PHP Method

    public function init()
    {
        if ($this->can_purge_cache() && isset($_GET['cm_purge_all']) && check_admin_referer('manual_purge')) {
            $this->purge_site_cache();
            add_action('admin_notices', array($this, 'manual_purge_message'));
        }
        add_action('clean_post_cache', array($this, 'queue_post_purge'));
        add_action('clean_term_cache', array($this, 'queue_terms_purges'), 10, 2);
        add_action('switch_theme', array($this, 'purge_site_cache'));
        add_action('post_updated', array($this, 'queue_old_permalink_purge'), 10, 3);
        add_action('activity_box_end', array($this, 'get_manual_purge_link'), 100);
        add_action('shutdown', array($this, 'execute_purges'));
    }