qh_rlink 507 libdb/queue.h struct quehead *qh_rlink; qh_rlink 518 libdb/queue.h element->qh_rlink = head; qh_rlink 520 libdb/queue.h element->qh_link->qh_rlink = element; qh_rlink 528 libdb/queue.h element->qh_link->qh_rlink = element->qh_rlink; qh_rlink 529 libdb/queue.h element->qh_rlink->qh_link = element->qh_link; qh_rlink 530 libdb/queue.h element->qh_rlink = 0;