mirror of
https://github.com/MariaDB/server.git
synced 2025-10-31 15:50:51 +03:00
ce856126d9
Uninitialized in the constructor member variables were pointing to nirvana and causing a crash when debug information of the Event Scheduler was dumped in result to COM_DEBUG packet sent to the server.
110 lines
2.7 KiB
C++
110 lines
2.7 KiB
C++
#ifndef _EVENT_QUEUE_H_
|
|
#define _EVENT_QUEUE_H_
|
|
/* Copyright (C) 2004-2006 MySQL AB
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; version 2 of the License.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
|
|
|
|
class Event_basic;
|
|
class Event_queue_element;
|
|
class Event_queue_element_for_exec;
|
|
|
|
class THD;
|
|
|
|
class Event_queue
|
|
{
|
|
public:
|
|
Event_queue();
|
|
~Event_queue();
|
|
|
|
bool
|
|
init_queue(THD *thd);
|
|
|
|
/* Methods for queue management follow */
|
|
|
|
bool
|
|
create_event(THD *thd, Event_queue_element *new_element,
|
|
bool *created);
|
|
|
|
void
|
|
update_event(THD *thd, LEX_STRING dbname, LEX_STRING name,
|
|
Event_queue_element *new_element);
|
|
|
|
void
|
|
drop_event(THD *thd, LEX_STRING dbname, LEX_STRING name);
|
|
|
|
void
|
|
drop_schema_events(THD *thd, LEX_STRING schema);
|
|
|
|
void
|
|
recalculate_activation_times(THD *thd);
|
|
|
|
bool
|
|
get_top_for_execution_if_time(THD *thd,
|
|
Event_queue_element_for_exec **event_name);
|
|
|
|
|
|
void
|
|
dump_internal_status();
|
|
|
|
private:
|
|
void
|
|
empty_queue();
|
|
|
|
void
|
|
deinit_queue();
|
|
/* helper functions for working with mutexes & conditionals */
|
|
void
|
|
lock_data(const char *func, uint line);
|
|
|
|
void
|
|
unlock_data(const char *func, uint line);
|
|
|
|
void
|
|
cond_wait(THD *thd, struct timespec *abstime, const char* msg,
|
|
const char *func, uint line);
|
|
|
|
void
|
|
find_n_remove_event(LEX_STRING db, LEX_STRING name);
|
|
|
|
|
|
void
|
|
drop_matching_events(THD *thd, LEX_STRING pattern,
|
|
bool (*)(LEX_STRING, Event_basic *));
|
|
|
|
|
|
void
|
|
dbug_dump_queue(time_t now);
|
|
|
|
/* LOCK_event_queue is the mutex which protects the access to the queue. */
|
|
pthread_mutex_t LOCK_event_queue;
|
|
pthread_cond_t COND_queue_state;
|
|
|
|
/* The sorted queue with the Event_queue_element objects */
|
|
QUEUE queue;
|
|
|
|
my_time_t next_activation_at;
|
|
|
|
uint mutex_last_locked_at_line;
|
|
uint mutex_last_unlocked_at_line;
|
|
uint mutex_last_attempted_lock_at_line;
|
|
const char* mutex_last_locked_in_func;
|
|
const char* mutex_last_unlocked_in_func;
|
|
const char* mutex_last_attempted_lock_in_func;
|
|
bool mutex_queue_data_locked;
|
|
bool mutex_queue_data_attempting_lock;
|
|
bool waiting_on_cond;
|
|
};
|
|
|
|
#endif /* _EVENT_QUEUE_H_ */
|