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MDEV-10569: Add RELEASE_ALL_LOCKS function. Implementing the SQL

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function to release all named locks
This commit is contained in:
Daniel-Solo
2020-01-15 15:08:42 +03:00
committed by Sergey Vojtovich
parent 98adcffe46
commit 127fee998f
5 changed files with 241 additions and 33 deletions
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59
mysql-test/main/func_misc.test
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@ -1,7 +1,7 @@
#
# Testing of misc functions
#
--source include/have_metadata_lock_info.inc
--source include/default_optimizer_switch.inc
--disable_warnings
DROP TABLE IF EXISTS t1, t2;
@ -1278,3 +1278,60 @@ DROP TABLE t1;
--echo #
--echo # End of 10.4 tests
--echo #
--echo #
--echo # MDEV-10569 Add RELEASE_ALL_LOCKS SQL-function
--echo #
--echo # Test function without any locks
SELECT RELEASE_ALL_LOCKS();
--echo # Test function with one lock only
SELECT GET_LOCK('l1',10);
SELECT RELEASE_ALL_LOCKS();
SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA
FROM information_schema.metadata_lock_info WHERE thread_id>0 ORDER BY TABLE_SCHEMA;
--echo # Test function with multiple locks
SELECT GET_LOCK('l01',10),
GET_LOCK('l02',10),
GET_LOCK('l03',10),
GET_LOCK('l04',10),
GET_LOCK('l05',10),
GET_LOCK('l06',10),
GET_LOCK('l07',10),
GET_LOCK('l08',10),
GET_LOCK('l09',10),
GET_LOCK('l10',10),
GET_LOCK('l11',10),
GET_LOCK('l12',10),
GET_LOCK('l13',10),
GET_LOCK('l14',10),
GET_LOCK('l15',10);
SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA
FROM information_schema.metadata_lock_info WHERE thread_id>0 ORDER BY TABLE_SCHEMA;
SELECT RELEASE_ALL_LOCKS();
SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA
FROM information_schema.metadata_lock_info WHERE thread_id>0 ORDER BY TABLE_SCHEMA;
--echo # Test function with recursive locks
SELECT GET_LOCK('l1',10),
GET_LOCK('l2',10),
GET_LOCK('l2',10),
GET_LOCK('l3',10),
GET_LOCK('l3',10),
GET_LOCK('l3',10),
GET_LOCK('l4',10),
GET_LOCK('l4',10),
GET_LOCK('l4',10),
GET_LOCK('l4',10),
GET_LOCK('l5',10),
GET_LOCK('l5',10),
GET_LOCK('l5',10),
GET_LOCK('l5',10),
GET_LOCK('l5',10);
SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA
FROM information_schema.metadata_lock_info WHERE thread_id>0 ORDER BY TABLE_SCHEMA;
SELECT RELEASE_ALL_LOCKS();
SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA
FROM information_schema.metadata_lock_info WHERE thread_id>0 ORDER BY TABLE_SCHEMA;