Add AddPeriodic() to EventManager. Switch some lock syntax.
Add AddPeriodic() to EventManager. Switch some lock syntax.


git-svn-id: 55198a34599dbf839a02c2a2ff0bd06dff76438e@322 960bbd1a-3921-0410-93bb-a35bc832efea

google/mysql-tools,google/mysql-tools