Move code for launching tests out of router_add_to_routerlist()

router_add_to_routerlist() is supposed to be a nice minimal function
that only touches the routerlist structures, but it included a call to
dirserv_single_reachability_test().

We have a function that gets called _after_ adding descriptors
successfully: routerlist_descriptors_added.  This patch moves the
responsibility for testing there.

Because the decision of whether to test or not depends on whether
there was an old routerinfo for this router or not, we have to first
detect whether we _will_ want to run the tests if the router is added.
We make this the job of
routers_update_status_from_consensus_networkstatus().

Finally, this patch makes the code notice if a router is going from
hibernating to non-hibernating, and if so causes a reachability test
to get launched.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/or/routerlist.h b/src/or/routerlist.h
index e31b07aef..d71a737b8 100644
--- a/src/or/routerlist.h
+++ b/src/or/routerlist.h
@@ -115,6 +115,7 @@ was_router_added_t router_add_to_routerlist(routerinfo_t *router,
 was_router_added_t router_add_extrainfo_to_routerlist(
                                         extrainfo_t *ei, const char **msg,
                                         int from_cache, int from_fetch);
+void routerlist_descriptors_added(smartlist_t *sl, int from_cache);
 void routerlist_remove_old_routers(void);
 int router_load_single_router(const char *s, uint8_t purpose, int cache,
                               const char **msg);