# Scenario:
#  T1= ({R(Z), R(B)})
#  T2= ({R(C), R(B), W(B)})
#  T3= ({R(B), W(B), C}, HIGH_PRIORITY)
#
# Outcome: T1 must commit, T3 must commit, T2 must commit
#          after T3 (no data change).

--source include/have_innodb.inc
--source include/have_debug_sync.inc
--source include/count_sessions.inc

CREATE TABLE t1 (c1 INT NOT NULL PRIMARY KEY, c2 INT NOT NULL, c3 INT NOT NULL) ENGINE=InnoDB;
INSERT INTO t1 VALUES (0, 0, 0);

--connect(con1,localhost,root,,test)
--connect(con2,localhost,root,,test)
--connect(con3,localhost,root,,test)

--echo
--echo # On connection 1
--connection con1
START TRANSACTION READ ONLY;
SELECT c1, c2 FROM t1 WHERE c1=0 LOCK IN SHARE MODE;

--echo
--echo # On connection 2
--connection con2
let $con2_id=`SELECT CONNECTION_ID()`;
START TRANSACTION;
--send UPDATE t1 SET c1=2 WHERE c1=0 AND c2=0

--echo
--echo # On connection 3
--connection con3
--source include/start_transaction_high_prio.inc
--replace_result $con2_id <con2_id>
eval SET @con2_id = $con2_id;
let $wait_timeout = 10;
let $wait_condition= SELECT COUNT(*) = 1 FROM information_schema.processlist
WHERE id = @con2_id AND INFO = 'update t1 set c1=2 where c1=0 and c2=0'
AND STATE = 'updating';
--source include/wait_condition.inc
--sleep 1
SET DEBUG_SYNC='rec_lock_add_to_waitq SIGNAL signal1 WAIT_FOR waiting1';
--send UPDATE t1 SET c1=3 WHERE c1=0;

--echo
--echo # On connection 1
--connection con1
SET DEBUG_SYNC='now WAIT_FOR signal1';
SET DEBUG_SYNC='now SIGNAL waiting1';
COMMIT;
--disconnect con1

--echo
--echo # On connection 3
--connection con3
--reap
COMMIT;
--disconnect con3

--echo
--echo # On connection 2
--connection con2
--reap
COMMIT;
--disconnect con2

--connection default
--let $assert_text= 'There is a 3.0.0 in t1'
--let $assert_cond= [SELECT COUNT(*) AS count FROM t1 WHERE t1.c1 = 3 AND t1.c2 = 0 AND t1.c3 = 0, count, 1] = 1
--source include/assert.inc

--let $assert_text= 'There is no 0.0.0 in t1'
--let $assert_cond= [SELECT COUNT(*) AS count FROM t1 WHERE t1.c1 = 0 AND t1.c2 = 0 AND t1.c3 = 0, count, 1] = 0
--source include/assert.inc

--let $assert_text= 'There is no 2 in t1.c1'
--let $assert_cond= [SELECT COUNT(*) AS count FROM t1 WHERE t1.c1 = 2, count, 1] = 0
--source include/assert.inc

DROP TABLE t1;

--source include/wait_until_count_sessions.inc
