WL #3337 (Event scheduler new architecture)

Cut Nr. 8.

All tests pass.

Separated Event_scheduler into Event_queue and Event_scheduler.
Added new Event_scheduler_ng which is the new scheduler and is used
system-wide. Will be moved to the event_scheduler.cc in the future.
Using Event_timed in Event_queue as well as cloned during execution.
Next step is to have Event_worker_data which will be used during execution
and will take ::compile()/::execute() out of Event_timed.

1 files changed, 13 insertions, 0 deletions

diff --git a/sql/events.h b/sql/events.h
index 1239cf58c7d..357312b44d1 100644
--- a/sql/events.h
+++ b/sql/events.h
@@ -19,6 +19,8 @@
 class sp_name;
 class Event_parse_data;
 class Event_db_repository;
+class Event_queue;
+class Event_scheduler_ng;
 
 /* Return codes */
 enum enum_events_error_code
@@ -60,6 +62,15 @@ public:
   void
   destroy_mutexes();
 
+  bool
+  start_execution_of_events();
+  
+  bool
+  stop_execution_of_events();
+  
+  bool
+  is_started();
+
   static Events*
   get_instance();
 
@@ -95,6 +106,8 @@ public:
   dump_internal_status(THD *thd);
 
   Event_db_repository *db_repository;
+  Event_queue *event_queue;
+  Event_scheduler_ng *scheduler_ng;
 
 private:
   /* Singleton DP is used */