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authorunknown <jan@hundin.mysql.fi>2004-12-09 11:10:45 +0200
committerunknown <jan@hundin.mysql.fi>2004-12-09 11:10:45 +0200
commitb892e1f6039ca70b7a40d99fb3de3b5607431f06 (patch)
tree113b7055d0917544b26a20941cdfeccff09142ba /sql/ha_innodb.h
parent50c6ea7d870c1e2f9941fd005504e965fcee72a7 (diff)
downloadmariadb-git-b892e1f6039ca70b7a40d99fb3de3b5607431f06.tar.gz
Added support for a LOCK TABLES...WHERE ENGINE = InnoDB query which sets
transactional table locks to tables mentioned in the query. These locks are released at the end of the transaction automatically. This is fix for bugs #5655, #5998 and issue #3762. innobase/include/lock0lock.h: Added a new lock type LOCK_TABLE_TRANSACTIONAL. innobase/include/trx0trx.h: Added a varible to store the number of transactional table locks reserved by the transaction and stored in the trx_locks list. innobase/lock/lock0lock.c: Added a lock type LOCK_TABLE_TRANSACTIONAL. innobase/row/row0mysql.c: Added support for a transactional table lock. innobase/trx/trx0roll.c: Make compiler happy and format function. innobase/trx/trx0trx.c: Added information about number of explicit and transactional table locks in the innodb monitor. sql/ha_innodb.cc: Added support for a LOCK_TABLE_TRANSACTIONAL table lock (SQLCOM_LOCK_TABLES_TRANSACTIONAL). Transactional table locks are taken in the function ::transactional_table_lock(). sql/ha_innodb.h: Added prototype for a function trandactional_table_lock(). sql/handler.h: Added prototype for a virtual function transactional_table_lock(). Handler does not need to implement this function. sql/lock.cc: Added a function transactional_lock_tables() to lock all tables in the list with transactional table lock. These locks can cause a deadlock and this error should be reported back to user. sql/mysql_priv.h: Added prototype for a function transactional_lock_tables(). sql/sql_lex.h: Added SQLCOM_LOCK_TABLES_TRANSACTIONAL command. sql/sql_parse.cc: Added SQLCOM_LOCK_TABLES_TRANSACTIONAL command. sql/sql_yacc.yy: Added parsing rules for a LOCK TABLES...WHERE ENGINE = x;
Diffstat (limited to 'sql/ha_innodb.h')
-rw-r--r--sql/ha_innodb.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/sql/ha_innodb.h b/sql/ha_innodb.h
index a64bbc665c1..eb906a744da 100644
--- a/sql/ha_innodb.h
+++ b/sql/ha_innodb.h
@@ -149,6 +149,7 @@ class ha_innobase: public handler
int discard_or_import_tablespace(my_bool discard);
int extra(enum ha_extra_function operation);
int external_lock(THD *thd, int lock_type);
+ int transactional_table_lock(THD *thd, int lock_type);
int start_stmt(THD *thd);
void position(byte *record);