Convert the links between art data structures used during lookups into srps.

art_lookup and art_match now return an active srp_ref, which the caller must
leave when it's done with the returned route (if any).  This allows lookups
to be done without holding any locks.

The art_table and art_node garbage collectors are still responsible for
freeing items removed from the routing table, so they now use srp_finalize
to wait out any active references, and updates are done using srp_swap
operations.

ok dlg@ mpi@

0 files changed, 0 insertions, 0 deletions