[Swan-commit] Changes to ref refs/heads/master

[Andrew Cagney]

New commits:
commit f4c7b41e563f3ae5bc82b62e8d77fab4f25b4cb3
Author: Andrew Cagney <cagney at gnu.org>
Date:   Mon Jun 24 16:05:09 2019 -0400

    host_pair: replace for-for-each-host-pair with a hash table
    
    Eliminate O(#connections) lookup.  In the case of a road-warrior
    responder that is O(#STATES) since there's probably a connection
    instance per state.
    
    Also delete the micro-optimization re-ordering the list of connections
    hanging off a host-pair.   Argh!