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Merge InnoDB-4.0.5b: minor improvements to foreign keys, more logical data dictionary lock
This commit is contained in:
heikki@hundin.mysql.fi
2002-11-06 00:41:27 +02:00
parent a6e5f9217c
commit db1693101b
19 changed files with 490 additions and 196 deletions
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39
innobase/include/row0mysql.h
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@@ -230,18 +230,35 @@ row_update_cascade_for_mysql(
or set null operation */
dict_table_t* table); /* in: table where we do the operation */
/*************************************************************************
Locks the data dictionary exclusively for performing a table create
operation. */
Locks the data dictionary exclusively for performing a table create or other
data dictionary modification operation. */
void
row_mysql_lock_data_dictionary(void);
/*================================*/
row_mysql_lock_data_dictionary(
/*===========================*/
trx_t* trx); /* in: transaction */
/*************************************************************************
Unlocks the data dictionary exclusively lock. */
Unlocks the data dictionary exclusive lock. */
void
row_mysql_unlock_data_dictionary(void);
/*==================================*/
row_mysql_unlock_data_dictionary(
/*=============================*/
trx_t* trx); /* in: transaction */
/*************************************************************************
Locks the data dictionary in shared mode from modifications, for performing
foreign key check, rollback, or other operation invisible to MySQL. */
void
row_mysql_freeze_data_dictionary(
/*=============================*/
trx_t* trx); /* in: transaction */
/*************************************************************************
Unlocks the data dictionary shared lock. */
void
row_mysql_unfreeze_data_dictionary(
/*===============================*/
trx_t* trx); /* in: transaction */
/*************************************************************************
Does a table creation operation for MySQL. If the name of the created
table ends to characters INNODB_MONITOR, then this also starts
@@ -310,11 +327,9 @@ output by the master thread. */
int
row_drop_table_for_mysql(
/*=====================*/
/* out: error code or DB_SUCCESS */
char* name, /* in: table name */
trx_t* trx, /* in: transaction handle */
ibool has_dict_mutex);/* in: TRUE if the caller already owns the
dictionary system mutex */
/* out: error code or DB_SUCCESS */
char* name, /* in: table name */
trx_t* trx); /* in: transaction handle */
/*************************************************************************
Drops a database for MySQL. */