* ospf_lsa.h: New flag to the LSA structure for the SPF calculation.
* ospf_lsdb.h: Export ospf_lsdb_clean_stat() function.
* ospf_spf.h: Add link to the LSA stat structure into vertex.
* ospf_spf.c: New functions cmp() and update_stat() to manage
candidates. Remove ospf_spf_has_vertex(), ospf_vertex_lookup(),
ospf_install_candidate() and ospf_spf_register() functions not needed
any more. Update ospf_vertex_new(), ospf_spf_next() and
ospf_spf_calculate() functions to use pqueue instead of linked list.
diff --git a/ospfd/ospf_spf.h b/ospfd/ospf_spf.h
index 25b1d79..57f9d28 100644
--- a/ospfd/ospf_spf.h
+++ b/ospfd/ospf_spf.h
@@ -36,6 +36,7 @@
u_char type; /* copied from LSA header */
struct in_addr id; /* copied from LSA header */
struct lsa_header *lsa; /* Router or Network LSA */
+ int * stat; /* Link to LSA status. */
u_int32_t distance; /* from root to this vertex */
int backlink; /* link index of back-link */
struct list *child; /* list of vertex: children in SPF tree*/