C++ (Cpp) area_find Examples

Example #1

File: stack.c Project: kaffepanna/wmii

bool
find(Area **ap, Frame **fp, int dir, bool wrap, bool stack) {
    Rectangle r;
    Frame *f;
    Area *a;

    f = *fp;
    a = *ap;
    r = f ? f->r : a->r;

    if(dir == North || dir == South) {
        *fp = stack_find(a, f, dir, stack);
        if(*fp)
            return true;
        if(!a->floating)
            *ap = area_find(a->view, r, dir, wrap);
        if(!*ap)
            return false;
        *fp = stack_find(*ap, *fp, dir, stack);
        return true;
    }
    if(dir != East && dir != West)
        die("not reached");
    *ap = area_find(a->view, r, dir, wrap);
    if(!*ap)
        return false;
    *fp = ap[0]->sel;
    return true;
}

Example #2

File: database.c Project: ajinkya93/OpenBSD

/* database description packet handling */
int
send_db_description(struct nbr *nbr)
{
	struct in6_addr		 dst;
	struct db_dscrp_hdr	 dd_hdr;
	struct lsa_entry	*le, *nle;
	struct ibuf		*buf;
	int			 ret = 0;
	u_int8_t		 bits = 0;

	if ((buf = ibuf_open(nbr->iface->mtu - sizeof(struct ip))) == NULL)
		fatal("send_db_description");

	/* OSPF header */
	if (gen_ospf_hdr(buf, nbr->iface, PACKET_TYPE_DD))
		goto fail;

	/* reserve space for database description header */
	if (ibuf_reserve(buf, sizeof(dd_hdr)) == NULL)
		goto fail;

	switch (nbr->state) {
	case NBR_STA_DOWN:
	case NBR_STA_ATTEMPT:
	case NBR_STA_INIT:
	case NBR_STA_2_WAY:
	case NBR_STA_SNAP:
		log_debug("send_db_description: cannot send packet in state %s,"
		    " neighbor ID %s", nbr_state_name(nbr->state),
		    inet_ntoa(nbr->id));
		ret = -1;
		goto done;
	case NBR_STA_XSTRT:
		bits |= OSPF_DBD_MS | OSPF_DBD_M | OSPF_DBD_I;
		nbr->dd_more = 1;
		break;
	case NBR_STA_XCHNG:
		if (nbr->dd_master)
			bits |= OSPF_DBD_MS;
		else
			bits &= ~OSPF_DBD_MS;

		if (TAILQ_EMPTY(&nbr->db_sum_list)) {
			bits &= ~OSPF_DBD_M;
			nbr->dd_more = 0;
		} else {
			bits |= OSPF_DBD_M;
			nbr->dd_more = 1;
		}

		bits &= ~OSPF_DBD_I;

		/* build LSA list */
		for (le = TAILQ_FIRST(&nbr->db_sum_list); le != NULL &&
		    buf->wpos + sizeof(struct lsa_hdr) < buf->max; le = nle) {
			nbr->dd_end = nle = TAILQ_NEXT(le, entry);
			if (ibuf_add(buf, le->le_lsa, sizeof(struct lsa_hdr)))
				goto fail;
		}
		break;
	case NBR_STA_LOAD:
	case NBR_STA_FULL:
		if (nbr->dd_master)
			bits |= OSPF_DBD_MS;
		else
			bits &= ~OSPF_DBD_MS;
		bits &= ~OSPF_DBD_M;
		bits &= ~OSPF_DBD_I;

		nbr->dd_more = 0;
		break;
	default:
		fatalx("send_db_description: unknown neighbor state");
	}

	bzero(&dd_hdr, sizeof(dd_hdr));

	switch (nbr->iface->type) {
	case IF_TYPE_POINTOPOINT:
		inet_pton(AF_INET6, AllSPFRouters, &dst);
		dd_hdr.iface_mtu = htons(nbr->iface->mtu);
		break;
	case IF_TYPE_BROADCAST:
		dst = nbr->addr;
		dd_hdr.iface_mtu = htons(nbr->iface->mtu);
		break;
	case IF_TYPE_NBMA:
	case IF_TYPE_POINTOMULTIPOINT:
		/* XXX not supported */
		break;
	case IF_TYPE_VIRTUALLINK:
		dst = nbr->iface->dst;
		dd_hdr.iface_mtu = 0;
		break;
	default:
		fatalx("send_db_description: unknown interface type");
	}

	dd_hdr.opts = htonl(area_ospf_options(area_find(oeconf,
	    nbr->iface->area_id)));
	dd_hdr.bits = bits;
	dd_hdr.dd_seq_num = htonl(nbr->dd_seq_num);

	memcpy(ibuf_seek(buf, sizeof(struct ospf_hdr), sizeof(dd_hdr)),
	    &dd_hdr, sizeof(dd_hdr));

	/* calculate checksum */
	if (upd_ospf_hdr(buf, nbr->iface))
		goto fail;

	/* transmit packet */
	ret = send_packet(nbr->iface, buf->buf, buf->wpos, &dst);
done:
	ibuf_free(buf);
	return (ret);
fail:
	log_warn("send_db_description");
	ibuf_free(buf);
	return (-1);
}