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WL #3337 (Event scheduler new architecture)

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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.


mysql-test/r/events.result:
  update result
mysql-test/r/events_bugs.result:
  update result
mysql-test/r/ps_1general.result:
  update result
mysql-test/r/skip_name_resolve.result:
  update result
mysql-test/r/sp-threads.result:
  update result
mysql-test/r/sp_notembedded.result:
  update result
mysql-test/r/status.result:
  update result
mysql-test/t/events_stress.test:
  Make event_stress a bit longer
sql/Makefile.am:
  Add new event_scheduler_ng.h/cc . These are only to be in the experimental
  clone. Later their content will be moved to event_scheduler.h/cc
sql/event_data_objects.cc:
  Allocate strings memory on own memory root, instead
  on the schedulers. Thus don't "leak" memory. This should
  fix bug#18683 memory leak in event scheduler
sql/event_data_objects.h:
  add mem_root
  add THD - this is only temporal, will be moved to class Event_job_data
  once Event_job_data is responsible for the execution.
sql/event_db_repository.cc:
  Remove unused code.
  Cosmetic changes
sql/event_queue.cc:
  Now use the Event_scheduler_ng (NextGen)
sql/event_queue.h:
  Now use the Event_scheduler_ng (NextGen)
sql/event_scheduler.cc:
  This file is no more used, but will be soon.
sql/event_scheduler.h:
  This file is no more used but will be soon
sql/events.cc:
  Now use the Event_scheduler_ng (NextGen)
sql/events.h:
  Now use the Event_scheduler_ng (NextGen)
sql/mysqld.cc:
  Make it again possible to kill the scheduler thread
sql/set_var.cc:
  Now use the Event_scheduler_ng (NextGen)
sql/share/errmsg.txt:
  Shorten the message.
sql/sql_show.cc:
  Loading is on a own root, then don't use thd->mem_root
This commit is contained in:
unknown
2006-07-04 18:44:35 +02:00
parent 377446fa34
commit a5dfeb02e9
24 changed files with 1198 additions and 531 deletions
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33
sql/event_data_objects.h
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@@ -72,8 +72,11 @@ class Event_timed
bool status_changed;
bool last_executed_changed;
MEM_ROOT mem_root;
public:
THD *thd;
enum enum_status
{
ENABLED = 1,
@@ -147,7 +150,7 @@ public:
deinit_mutexes();
int
load_from_row(MEM_ROOT *mem_root, TABLE *table);
load_from_row(TABLE *table);
bool
compute_next_execution_time();
@@ -264,9 +267,33 @@ public:
};
class Event_queue_element : public Event_timed
class Event_job_data
{
public:
LEX_STRING dbname;
LEX_STRING name;
sp_head *sphead;
LEX_STRING definer;
LEX_STRING body;
ulong sql_mode;
THD *thd;
Event_job_data(){}
~Event_job_data(){}
int
execute();
private:
int
load_from_disk();
int
compile();
Event_job_data(const Event_job_data &); /* Prevent use of these */
void operator=(Event_job_data &);
};
#endif /* _EVENT_DATA_OBJECTS_H_ */