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3594adb165
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()
40 lines
689 B
Text
40 lines
689 B
Text
-- source include/have_innodb.inc
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connect (con1,localhost,root,,);
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connect (con2,localhost,root,,);
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drop table if exists t1;
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#
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# Testing of explicit table locks
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#
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connection con1;
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create table t1 (id integer, x integer) engine=INNODB;
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insert into t1 values(0, 0);
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set autocommit=0;
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SELECT * from t1 where id = 0 FOR UPDATE;
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connection con2;
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set autocommit=0;
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# The following statement should hang because con1 is locking the page
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--send
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lock table t1 write;
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--sleep 2;
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connection con1;
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update t1 set x=1 where id = 0;
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select * from t1;
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commit;
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connection con2;
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reap;
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update t1 set x=2 where id = 0;
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commit;
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unlock tables;
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connection con1;
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select * from t1;
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commit;
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drop table t1;
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