G_GNUC_INTERNAL int systemd_unit_exec(svc_action_t *op)
G_GNUC_INTERNAL void systemd_cleanup(void)
G_GNUC_INTERNAL gboolean systemd_unit_running(const gchar *name)
G_GNUC_INTERNAL GList * systemd_unit_listall(void)
G_GNUC_INTERNAL gboolean systemd_unit_exists(const gchar *name)