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

--echo # Setup connections
SET @old_innodb_thread_concurrency := @@innodb_thread_concurrency;
SET @old_innodb_concurrency_tickets := @@innodb_concurrency_tickets;
SET @old_innodb_thread_sleep_delay := @@innodb_thread_sleep_delay;

connect (con1, localhost, root);
connect (con2, localhost, root);

--echo #
--echo # Bug #19386426	SHUTDOWN HANGS: CLIENT THREAD IN A LOOP
--echo # AROUND SRV_CONC_ENTER_INNODB()
--echo #

SET GLOBAL innodb_thread_concurrency = 1;
create table t1(f1 int) engine=innodb;
connection con1;
SET DEBUG_SYNC= 'ib_after_row_insert
SIGNAL opened WAIT_FOR flushed';
send insert into t1 values(12);
connection default;
--echo connection default;
SET DEBUG_SYNC= 'now WAIT_FOR opened';
# User thread is waiting in FIFO queue.
SET DEBUG_SYNC= 'user_thread_waiting
SIGNAL flushed WAIT_FOR opened1';
send insert into t1 values(13);
connection con1;
reap;
# Set thread_concurrency to zero
set global innodb_thread_concurrency=0;
SET DEBUG_SYNC= 'now SIGNAL opened1';
connection default;
reap;
select * from t1;
drop table t1;

--echo #
--echo # bug#23476050 THREADS STUCK WAITING TO ENTER INNODB
--echo #

--echo # Scenario-1: High Priority Transaction
--echo In connection DEFAULT
SET GLOBAL innodb_thread_concurrency = 1;

CREATE TABLE t1(col1 INT PRIMARY KEY);
INSERT INTO t1 VALUES(10);

START TRANSACTION;
--echo # Lock Row
UPDATE t1 SET col1 = 20 where col1 = 10;

--echo # stop after TrxInInnoDB and before innodb thread concurrency
SET DEBUG_SYNC= 'ha_innobase_index_read_begin SIGNAL kill_me WAIT_FOR proceed';

--send UPDATE t1 SET col1 = 30 where col1 = 20

--echo In connection CON-1
connection con1;
SET DEBUG_SYNC='now WAIT_FOR kill_me';
--source include/start_transaction_high_prio.inc

SET DEBUG_SYNC= 'trx_kill_blocking_enter SIGNAL proceed';
UPDATE t1 SET col1 = 100;
COMMIT;

--echo In connection DEFAULT
--connection default

--echo # Rolled back by high priority transaction
--error ER_LOCK_DEADLOCK
--reap

SELECT * FROM t1;
DROP TABLE t1;

--echo # Scenario-2: Auto Increment in partitioned table
SET GLOBAL innodb_thread_concurrency = 1;

CREATE TABLE t1 (col1 INT AUTO_INCREMENT PRIMARY KEY, col2 int)
PARTITION BY KEY(col1) PARTITIONS 2;

INSERT INTO t1(col2) VALUES(10);

SELECT * FROM t1;

--echo # stop after innodb thread concurrency before auto increment lock
SET DEBUG_SYNC='ib_after_row_insert SIGNAL got_innodb_ticket WAIT_FOR proceed';

--send INSERT INTO t1(col2) VALUES (20)

--echo In connection CON-1
connection con1;
SET LOCAL binlog_format = 'STATEMENT';
SET DEBUG_SYNC='now WAIT_FOR got_innodb_ticket';
--send INSERT INTO t1(col2) SELECT 30

# wait for insert statement to block on innodb thread concurrency
--sleep 1

--echo In connection CON-2
connection con2;
SET DEBUG_SYNC='now SIGNAL proceed';

--echo In connection CON-1
connection con1;
--reap

--echo In connection DEFAULT
--connection default
--reap

SELECT * FROM t1 ORDER BY col1;
DROP TABLE t1;

--echo #
--echo # bug#27661171 INNODB: TRX->DECLARED_TO_BE_INSIDE_INNODB
--echo #
CREATE TABLE t1 (col1 INT AUTO_INCREMENT PRIMARY KEY, col2 int)
PARTITION BY KEY(col1) PARTITIONS 2;

--echo # Insert 2 rows in same statement consuming the tickets
SET GLOBAL innodb_concurrency_tickets = 2;
SHOW VARIABLES LIKE 'innodb_concurrency_tickets';
INSERT INTO t1(col2) VALUES (10), (20);

SELECT * FROM t1 ORDER BY col1;
DROP TABLE t1;

--echo # Cleanup
disconnect con1;
disconnect con2;

SET DEBUG_SYNC='reset';
SET GLOBAL innodb_thread_concurrency = @old_innodb_thread_concurrency;
SET GLOBAL innodb_concurrency_tickets = @old_innodb_concurrency_tickets;
SET GLOBAL innodb_thread_sleep_delay = @old_innodb_thread_sleep_delay;

--source include/wait_until_count_sessions.inc