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This patch introduces specialized Event data objects Event_basic as parent. Event_queue_element used for queue storage Event_timed used for SHOW EVENTS/ I_S.EVENTS / SHOW CREATE EVENT Event_job_data using during execution. Methods were moved out of Event_timed to other classes. This patch also introduces Events::LOCK_event_metadata. This patch gives new implementation of Events::dump_internal_status(). Now both the Event_scheduler and Event_queue return information during their ::dump_internal_status(). Shortened a bit the runtime for executing events test cases. mysql-test/r/events.result: update results mysql-test/r/events_bugs.result: update results mysql-test/r/events_logs_tests.result: update results mysql-test/r/events_scheduling.result: update results mysql-test/t/events.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_bugs.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_logs_tests.test: make the test shorter by time mysql-test/t/events_scheduling.test: when selecting always use ORDER BY mysql-test/t/events_stress.test: sleep 2.5secs for shorter stress test sql/event_data_objects.cc: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_data_objects.h: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_db_repository.cc: Cosmetics. load_named_event now uses Event_basic, for polymorphism find_event uses Event_basic, to be polymorphic. use Field **fields= table->field and then index fields[...] Add documentation. Fix documentation. sql/event_db_repository.h: Event_db_repository depends only on Event_basic's interface sql/event_queue.cc: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_queue.h: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_scheduler_ng.cc: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. Make the scheduler thread unkillable (thd->command= COM_DAEMON). Add a lot of documentation. sql/event_scheduler_ng.h: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. sql/events.cc: Documentation Add LOCK_event_metadata sql/events.h: Change the signature of Events::drop_event() not to use sp_name but LEX_STRING sql/share/errmsg.txt: Fix error message sql/sql_parse.cc: Events::drop_event() has new signature
131 lines
2.9 KiB
C++
131 lines
2.9 KiB
C++
#ifndef _EVENT_H_
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#define _EVENT_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 sp_name;
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class Event_parse_data;
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class Event_db_repository;
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class Event_queue;
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class Event_queue_element;
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class Event_scheduler_ng;
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/* Return codes */
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enum enum_events_error_code
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{
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OP_OK= 0,
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OP_NOT_RUNNING,
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OP_CANT_KILL,
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OP_CANT_INIT,
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OP_DISABLED_EVENT,
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OP_LOAD_ERROR,
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OP_ALREADY_EXISTS
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};
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int
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sortcmp_lex_string(LEX_STRING s, LEX_STRING t, CHARSET_INFO *cs);
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class Events
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{
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public:
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friend class Event_queue_element;
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/*
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Quite NOT the best practice and will be removed once
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Event_timed::drop() and Event_timed is fixed not do drop directly
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or other scheme will be found.
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*/
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static ulong opt_event_scheduler;
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static TYPELIB opt_typelib;
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int
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init();
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void
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deinit();
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void
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init_mutexes();
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void
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destroy_mutexes();
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bool
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start_execution_of_events();
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bool
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stop_execution_of_events();
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bool
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is_started();
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static Events*
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get_instance();
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int
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create_event(THD *thd, Event_parse_data *parse_data, bool if_exists,
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uint *rows_affected);
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int
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update_event(THD *thd, Event_parse_data *parse_data, sp_name *new_name,
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uint *rows_affected);
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int
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drop_event(THD *thd, LEX_STRING dbname, LEX_STRING name, bool if_exists,
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uint *rows_affected, bool only_from_disk);
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int
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drop_schema_events(THD *thd, char *db);
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int
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open_event_table(THD *thd, enum thr_lock_type lock_type, TABLE **table);
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int
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show_create_event(THD *thd, sp_name *spn);
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/* Needed for both SHOW CREATE EVENT and INFORMATION_SCHEMA */
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static int
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reconstruct_interval_expression(String *buf, interval_type interval,
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longlong expression);
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static int
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fill_schema_events(THD *thd, TABLE_LIST *tables, COND * /* cond */);
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bool
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dump_internal_status(THD *thd);
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private:
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/* Singleton DP is used */
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Events(){}
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~Events(){}
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/* Singleton instance */
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static Events singleton;
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Event_queue *event_queue;
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Event_scheduler_ng *scheduler_ng;
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Event_db_repository *db_repository;
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pthread_mutex_t LOCK_event_metadata;
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/* Prevent use of these */
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Events(const Events &);
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void operator=(Events &);
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};
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#endif /* _EVENT_H_ */
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