diff options
Diffstat (limited to 'storage/innobase/include/dict0dict.h')
| -rw-r--r-- | storage/innobase/include/dict0dict.h | 34 |
1 files changed, 23 insertions, 11 deletions
diff --git a/storage/innobase/include/dict0dict.h b/storage/innobase/include/dict0dict.h index 029cf408141..f5a3e8dafc0 100644 --- a/storage/innobase/include/dict0dict.h +++ b/storage/innobase/include/dict0dict.h @@ -1083,6 +1083,10 @@ void dict_update_statistics_low( /*=======================*/ dict_table_t* table, /*!< in/out: table */ + ibool only_calc_if_missing_stats,/*!< in: only + update/recalc the stats if they have + not been initialized yet, otherwise + do nothing */ ibool has_dict_mutex);/*!< in: TRUE if the caller has the dictionary mutex */ /*********************************************************************//** @@ -1092,7 +1096,11 @@ UNIV_INTERN void dict_update_statistics( /*===================*/ - dict_table_t* table); /*!< in/out: table */ + dict_table_t* table, /*!< in/out: table */ + ibool only_calc_if_missing_stats);/*!< in: only + update/recalc the stats if they have + not been initialized yet, otherwise + do nothing */ /********************************************************************//** Reserves the dictionary system mutex for MySQL. */ UNIV_INTERN @@ -1106,21 +1114,25 @@ void dict_mutex_exit_for_mysql(void); /*===========================*/ /**********************************************************************//** -Lock the appropriate mutex to protect index->stat_n_diff_key_vals[]. -index->id is used to pick the right mutex and it should not change -before dict_index_stat_mutex_exit() is called on this index. */ +Lock the appropriate latch to protect a given table's statistics. +table->id is used to pick the corresponding latch from a global array of +latches. */ UNIV_INTERN void -dict_index_stat_mutex_enter( -/*========================*/ - const dict_index_t* index); /*!< in: index */ +dict_table_stats_lock( +/*==================*/ + const dict_table_t* table, /*!< in: table */ + ulint latch_mode); /*!< in: RW_S_LATCH or + RW_X_LATCH */ /**********************************************************************//** -Unlock the appropriate mutex that protects index->stat_n_diff_key_vals[]. */ +Unlock the latch that has been locked by dict_table_stats_lock() */ UNIV_INTERN void -dict_index_stat_mutex_exit( -/*=======================*/ - const dict_index_t* index); /*!< in: index */ +dict_table_stats_unlock( +/*====================*/ + const dict_table_t* table, /*!< in: table */ + ulint latch_mode); /*!< in: RW_S_LATCH or + RW_X_LATCH */ /********************************************************************//** Checks if the database name in two table names is the same. @return TRUE if same db name */ |