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Backport of:

Browse Source 
------------------------------------------------------------
revno: 2630.4.17
committer: Dmitry Lenev <dlenev@mysql.com>
branch nick: mysql-6.0-3726-w2
timestamp: Thu 2008-05-29 16:52:56 +0400
message:
  WL#3726 "DDL locking for all metadata objects".

  After review fixes in progress.

  "The great correction of names".

  Renamed MDL_LOCK and MDL_LOCK_DATA classes to make usage of
  these names in metadata locking subsystem consistent with
  other parts of server (i.e. thr_lock.cc). Now we MDL_LOCK_DATA
  corresponds to request for a lock and MDL_LOCK to the lock
  itself. Adjusted code in MDL subsystem and other places
  using these classes accordingly.
  Did similar thing for GLOBAL_MDL_LOCK_DATA class and also
  changed name of its members to correspond to names of
  MDL_LOCK_DATA members.
  Finally got rid of usage of one letter variables in MDL
  code since it makes code harder to search in (according
  to reviewer).
This commit is contained in:
Konstantin Osipov
2009-12-01 01:33:22 +03:00
parent f56cc2a335
commit a9dbad1afd
14 changed files with 484 additions and 460 deletions
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6
sql/sql_parse.cc
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@ -6534,9 +6534,9 @@ TABLE_LIST *st_select_lex::add_table_to_list(THD *thd,
ptr->next_name_resolution_table= NULL;
/* Link table in global list (all used tables) */
lex->add_to_query_tables(ptr);
ptr->mdl_lock= mdl_alloc_lock(0 , ptr->db, ptr->table_name,
thd->mdl_el_root ? thd->mdl_el_root :
thd->mem_root);
ptr->mdl_lock_data= mdl_alloc_lock(0 , ptr->db, ptr->table_name,
thd->mdl_el_root ? thd->mdl_el_root :
thd->mem_root);
DBUG_RETURN(ptr);
}