Refactor some exit-policy-related functions that showed up in oprofile.

Specifically, split compare_tor_addr_to_addr_policy() from a loop with a bunch
of complicated ifs inside into some ifs, each with a simple loop.  Rearrange
router_find_exact_exit_enclave() to run a little faster.  Bizarrely,
router_policy_rejects_all() shows up on oprofile, so precalculate it per
routerinfo.

svn:r17802

1 files changed, 4 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index be485d2074..3eef25c4f1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -5,6 +5,10 @@ Changes in version 0.2.1.10-alpha - 2009-01-??
       like Vidalia can show bridge operators that they're actually making
       a difference.
 
+  o Minor bugfixes (performance):
+    - Squeeze 2-5% out of client performance (according to oprofile) by
+      improving the implementation of some policy-manipulation functions.
+
   o Minor bugfixes:
     - Make get_interface_address() function work properly again; stop
       guessing the wrong parts of our address as our address.