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04a5f335d3
Remove SHOW SCHEDULER STATUS command and migrate the information output to `mysqladmin debug` (COM_DEBUG) SHOW SCHEDULER STATUS was introduced in 5.1.11, provided some debug information about event scheduler internals and was enabled only in debug builds. sql/event_queue.cc: Remove SHOW SCHEDULER STATUS. Reporting still will be there but through COM_DEBUG (mysqladmin debug) sql/event_queue.h: dump_internal_status cannot return an error, therefore it should be void. sql/event_scheduler.cc: Remove SHOW SCHEDULER STATUS. Reporting still will be there but through COM_DEBUG (mysqladmin debug) sql/event_scheduler.h: dump_internal_status cannot return an error, therefore it should be void. sql/events.cc: Change from outputting the internal data from the wire to the standard output. SHOW SCHEDULER STATUS was removed. sql/events.h: dump_internal_status() cannot return an error, therefore it should be void sql/lex.h: remove SCHEDULER as recognized word. This is part of removing SHOW SCHEDULER STATUS sql/sp_head.cc: SQLCOM_SHOW_SCHEDULER_STATUS has been removed sql/sql_lex.h: SQLCOM_SHOW_SCHEDULER_STATUS has been removed sql/sql_parse.cc: SQLCOM_SHOW_SCHEDULER_STATUS has been removed sql/sql_test.cc: Dump Events' internal information on COM_DEBUG sql/sql_yacc.yy: SQLCOM_SHOW_SCHEDULER_STATUS has been removed
121 lines
2.9 KiB
C++
121 lines
2.9 KiB
C++
#ifndef _EVENT_QUEUE_H_
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#define _EVENT_QUEUE_H_
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/* Copyright (C) 2004-2006 MySQL AB
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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class Event_basic;
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class Event_db_repository;
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class Event_job_data;
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class Event_queue_element;
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class THD;
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class Event_scheduler;
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class Event_queue
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{
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public:
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Event_queue();
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void
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init_mutexes();
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void
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deinit_mutexes();
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bool
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init_queue(THD *thd, Event_db_repository *db_repo);
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void
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deinit_queue();
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/* Methods for queue management follow */
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int
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create_event(THD *thd, LEX_STRING dbname, LEX_STRING name);
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int
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update_event(THD *thd, LEX_STRING dbname, LEX_STRING name,
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LEX_STRING *new_schema, LEX_STRING *new_name);
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void
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drop_event(THD *thd, LEX_STRING dbname, LEX_STRING name);
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void
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drop_schema_events(THD *thd, LEX_STRING schema);
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void
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recalculate_activation_times(THD *thd);
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bool
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get_top_for_execution_if_time(THD *thd, Event_job_data **job_data);
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void
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dump_internal_status();
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int
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load_events_from_db(THD *thd);
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protected:
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void
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find_n_remove_event(LEX_STRING db, LEX_STRING name);
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void
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drop_matching_events(THD *thd, LEX_STRING pattern,
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bool (*)(LEX_STRING, Event_basic *));
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void
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empty_queue();
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void
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dbug_dump_queue(time_t now);
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/* LOCK_event_queue is the mutex which protects the access to the queue. */
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pthread_mutex_t LOCK_event_queue;
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pthread_cond_t COND_queue_state;
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Event_db_repository *db_repository;
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Event_scheduler *scheduler;
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/* The sorted queue with the Event_job_data objects */
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QUEUE queue;
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TIME next_activation_at;
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uint mutex_last_locked_at_line;
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uint mutex_last_unlocked_at_line;
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uint mutex_last_attempted_lock_at_line;
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const char* mutex_last_locked_in_func;
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const char* mutex_last_unlocked_in_func;
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const char* mutex_last_attempted_lock_in_func;
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bool mutex_queue_data_locked;
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bool mutex_queue_data_attempting_lock;
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bool waiting_on_cond;
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/* helper functions for working with mutexes & conditionals */
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void
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lock_data(const char *func, uint line);
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void
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unlock_data(const char *func, uint line);
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void
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cond_wait(THD *thd, struct timespec *abstime, const char* msg,
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const char *func, uint line);
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};
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#endif /* _EVENT_QUEUE_H_ */
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