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Backport of:

Browse Source 
----------------------------------------------------------
revno: 2630.4.26
committer: Konstantin Osipov <konstantin@mysql.com>
branch nick: mysql-6.0-prelocked_mode-to-push
timestamp: Fri 2008-06-06 23:19:04 +0400
message:
  WL#3726: work on review comments.
  Remove thd->locked_tables. Always store MYSQL_LOCK instances in
  thd->lock.
  Rename thd->prelocked_mode to thd->locked_tables_mode.
  Use thd->locked_tables_mode to determine if we
  are under LOCK TABLES. Update the code to not assume that
  if thd->lock is set, LOCK TABLES mode is off.
  Review comments.


sql/ha_ndbcluster_binlog.cc:
  Don't unlock the lock under LOCK TABLES (safety).
sql/handler.cc:
  There is no thd->locked_tables any more.
  Update comments.
sql/lock.cc:
  There is no thd->locked_tables any more.
sql/log.cc:
  Rename thd->prelocked_mode to thd->locked_tables_mode.
sql/set_var.cc:
  Use thd->locked_tables_mode to determine if we are under LOCK TABLES.
sql/sp_head.cc:
  Rename thd->prelocked_mode to thd->locked_tables_mode.
sql/sql_base.cc:
  Use thd->locked_tables_mode to determine if we are under LOCK TABLES.
  Remove thd->locked_tables.
sql/sql_cache.cc:
  Use thd->locked_tables_mode to determine if we are under LOCK TABLES.
sql/sql_class.cc:
  Avoid code duplication.
  Do not release the table locks prematurely if we're under LOCK TABLES.
  Use thd->locked_tables_mode instead of thd->locked_tables.
sql/sql_class.h:
  Remove thd->locked_tables.
  Make prelocked mode a kind of LOCK TABLES mode.
  Update comments.
sql/sql_cursor.cc:
  Update comments.
sql/sql_insert.cc:
  Use thd->locked_tables_mode to determine if we are under LOCK TABLES.
  Rename thd->prelocked_mode to thd->locked_tables_mode.
sql/sql_load.cc:
  Rename thd->prelocked_mode to thd->locked_tables_mode.
sql/sql_parse.cc:
  Use thd->locked_tables_mode to determine if we are under LOCK TABLES.
  Remove thd->locked_tables.
sql/sql_partition.cc:
  Use thd->locked_tables_mode to determine if we are under LOCK TABLES.
sql/sql_rename.cc:
  Use thd->locked_tables_mode to determine if we are under LOCK TABLES.
sql/sql_select.cc:
  Use thd->locked_tables_mode to determine if we are under LOCK TABLES.
sql/sql_table.cc:
  Use thd->locked_tables_mode to determine if we are under LOCK TABLES.
sql/sql_trigger.cc:
  Use thd->locked_tables_mode to determine if we are under LOCK TABLES.
sql/sql_update.cc:
  Use thd->locked_tables_mode to determine if we are under LOCK TABLES.
sql/sql_view.cc:
  Use thd->locked_tables_mode to determine if we are under LOCK TABLES.
storage/myisam/ha_myisam.cc:
  Use thd->locked_tables_mode to determine if we are under LOCK TABLES.
This commit is contained in:
Konstantin Osipov
2009-12-01 17:39:03 +03:00
parent 1b078b3f2d
commit 5969dcda21
22 changed files with 208 additions and 213 deletions
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4
sql/sql_cache.cc
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@ -1136,7 +1136,7 @@ void Query_cache::store_query(THD *thd, TABLE_LIST *tables_used)
See also a note on double-check locking usage above.
*/
if (thd->locked_tables || query_cache_size == 0)
if (thd->locked_tables_mode || query_cache_size == 0)
DBUG_VOID_RETURN;
uint8 tables_type= 0;
@ -1364,7 +1364,7 @@ Query_cache::send_result_to_client(THD *thd, char *sql, uint query_length)
See also a note on double-check locking usage above.
*/
if (is_disabled() || thd->locked_tables ||
if (is_disabled() || thd->locked_tables_mode ||
thd->variables.query_cache_type == 0 || query_cache_size == 0)
goto err;