diff options
Diffstat (limited to 'sql/sql_base.h')
| -rw-r--r-- | sql/sql_base.h | 26 |
1 files changed, 23 insertions, 3 deletions
diff --git a/sql/sql_base.h b/sql/sql_base.h index 00f335ab209..35fa04b3674 100644 --- a/sql/sql_base.h +++ b/sql/sql_base.h @@ -159,7 +159,7 @@ thr_lock_type read_lock_type_for_table(THD *thd, my_bool mysql_rm_tmp_tables(void); bool rm_temporary_table(handlerton *base, char *path); void close_tables_for_reopen(THD *thd, TABLE_LIST **tables, - MDL_ticket *start_of_statement_svp); + const MDL_savepoint &start_of_statement_svp); TABLE_LIST *find_table_in_list(TABLE_LIST *table, TABLE_LIST *TABLE_LIST::*link, const char *db_name, @@ -507,7 +507,7 @@ public: the statement, so that we can rollback to it before waiting on locks. */ - MDL_ticket *start_of_statement_svp() const + const MDL_savepoint &start_of_statement_svp() const { return m_start_of_statement_svp; } @@ -518,6 +518,21 @@ public: } uint get_flags() const { return m_flags; } + + /** + Set flag indicating that we have already acquired metadata lock + protecting this statement against GRL while opening tables. + */ + void set_has_protection_against_grl() + { + m_has_protection_against_grl= TRUE; + } + + bool has_protection_against_grl() const + { + return m_has_protection_against_grl; + } + private: /** For OT_DISCOVER and OT_REPAIR actions, the table list element for @@ -525,7 +540,7 @@ private: should be repaired. */ TABLE_LIST *m_failed_table; - MDL_ticket *m_start_of_statement_svp; + MDL_savepoint m_start_of_statement_svp; /** Lock timeout in seconds. Initialized to LONG_TIMEOUT when opening system tables or to the "lock_wait_timeout" system variable for regular tables. @@ -541,6 +556,11 @@ private: and we can't safely do back-off (and release them). */ bool m_has_locks; + /** + Indicates that in the process of opening tables we have acquired + protection against global read lock. + */ + bool m_has_protection_against_grl; }; |