diff options
| author | unknown <marko@hundin.mysql.fi> | 2004-04-29 16:42:33 +0300 |
|---|---|---|
| committer | unknown <marko@hundin.mysql.fi> | 2004-04-29 16:42:33 +0300 |
| commit | 57fc5263c4b95650f3c799574341ee7bf9c4c002 (patch) | |
| tree | 5013e7c0279115014b75320a87795fe461ac1285 /sql/ha_innodb.cc | |
| parent | b3e55971ee5e6056a90500543076f089d7c7b84e (diff) | |
| download | mariadb-git-57fc5263c4b95650f3c799574341ee7bf9c4c002.tar.gz | |
InnoDB: implement LOCK TABLE (Bug #3299)
innobase/include/lock0lock.h:
Add lock_table_unlock() and lock_release_tables_off_kernel()
Add LOCK_TABLE_EXP
innobase/include/row0mysql.h:
Add row_unlock_table_for_mysql() and row_lock_table_for_mysql()
innobase/include/trx0trx.h:
Add n_tables_locked
innobase/lock/lock0lock.c:
Add LOCK_TABLE_EXP for explicit LOCK TABLE commands
Add lock_table_unlock()
Add lock_release_tables_off_kernel()
innobase/row/row0mysql.c:
Add row_unlock_table_for_mysql() and row_lock_table_for_mysql()
innobase/trx/trx0trx.c:
Add n_tables_locked
mysql-test/r/innodb.result:
Updated handling of auto_inc columns
sql/ha_innodb.cc:
Call row_lock_table_for_mysql() and row_unlock_table_for_mysql()
Diffstat (limited to 'sql/ha_innodb.cc')
| -rw-r--r-- | sql/ha_innodb.cc | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/sql/ha_innodb.cc b/sql/ha_innodb.cc index 7a651fc12d9..de2a817a6cb 100644 --- a/sql/ha_innodb.cc +++ b/sql/ha_innodb.cc @@ -4494,12 +4494,11 @@ the SQL statement in case of an error. */ int ha_innobase::external_lock( /*=======================*/ - /* out: 0 or error code */ + /* out: 0 */ THD* thd, /* in: handle to the user thread */ int lock_type) /* in: lock type */ { row_prebuilt_t* prebuilt = (row_prebuilt_t*) innobase_prebuilt; - int error = 0; trx_t* trx; DBUG_ENTER("ha_innobase::external_lock"); @@ -4554,11 +4553,21 @@ ha_innobase::external_lock( } if (prebuilt->select_lock_type != LOCK_NONE) { + if (thd->in_lock_tables) { + ulint error; + error = row_lock_table_for_mysql(prebuilt); + + if (error != DB_SUCCESS) { + error = convert_error_code_to_mysql( + error, user_thd); + DBUG_RETURN(error); + } + } trx->mysql_n_tables_locked++; } - DBUG_RETURN(error); + DBUG_RETURN(0); } /* MySQL is releasing a table lock */ @@ -4566,6 +4575,9 @@ ha_innobase::external_lock( trx->n_mysql_tables_in_use--; prebuilt->mysql_has_locked = FALSE; auto_inc_counter_for_this_stat = 0; + if (trx->n_tables_locked) { + row_unlock_table_for_mysql(trx); + } /* If the MySQL lock count drops to zero we know that the current SQL statement has ended */ @@ -4598,7 +4610,7 @@ ha_innobase::external_lock( } } - DBUG_RETURN(error); + DBUG_RETURN(0); } /**************************************************************************** |