MariaRocks port: Get rocksdb.autoinc_vars_thread test to work

MariaDB doesn't have NO_CLEAR_EVENT support in DEBUG_SYNC facility.
Luckily, the test can be re-written to use two different sync points
instead. (I've checked that the modified test fails with fb/mysql-5.6
without the fix for e004fd9f (PR #394)

Author: spetrunia

storage/rocksdb/mysql-test/rocksdb/r/autoinc_vars_thread.result

@@ -3,19 +3,33 @@
 # Issue #390
 #---------------------------
 CREATE TABLE t1 (a INT AUTO_INCREMENT PRIMARY KEY) ENGINE=rocksdb;
+connect  con1, localhost, root,,;
 SET auto_increment_increment = 2;
 SET auto_increment_offset = 1;
 INSERT INTO t1 VALUES(NULL);
+connect  con2, localhost, root,,;
 SET auto_increment_increment = 2;
 SET auto_increment_offset = 1;
-SET debug_sync='rocksdb.autoinc_vars SIGNAL parked1 WAIT_FOR go NO_CLEAR_EVENT';
+connect  con3, localhost, root,,;
+connection con1;
+SET debug_sync='rocksdb.autoinc_vars SIGNAL parked1 WAIT_FOR go1';
 INSERT INTO t1 VALUES(NULL);
-SET debug_sync='rocksdb.autoinc_vars SIGNAL parked2 WAIT_FOR go NO_CLEAR_EVENT';
+connection con2;
+SET debug_sync='rocksdb.autoinc_vars SIGNAL parked2 WAIT_FOR go2';
 INSERT INTO t1 VALUES(NULL);
+connection default;
 SET debug_sync='now WAIT_FOR parked1';
 SET debug_sync='now WAIT_FOR parked2';
-SET debug_sync='now SIGNAL go';
+SET debug_sync='now SIGNAL go1';
+connection con3;
+SET debug_sync='now SIGNAL go2';
+connection default;
+connection con1;
+connection con2;
+connection default;
 SET debug_sync='RESET';
+disconnect con1;
+disconnect con2;
 SELECT * FROM t1;
 a
 1

storage/rocksdb/mysql-test/rocksdb/t/autoinc_vars_thread.test

@@ -19,13 +19,15 @@ connect (con2, localhost, root,,);
 SET auto_increment_increment = 2;
 SET auto_increment_offset = 1;
 
+connect (con3, localhost, root,,);
+
 # Start each thread on an insert that will block waiting for a signal
 connection con1;
-SET debug_sync='rocksdb.autoinc_vars SIGNAL parked1 WAIT_FOR go NO_CLEAR_EVENT';
+SET debug_sync='rocksdb.autoinc_vars SIGNAL parked1 WAIT_FOR go1';
 send INSERT INTO t1 VALUES(NULL);
 
 connection con2;
-SET debug_sync='rocksdb.autoinc_vars SIGNAL parked2 WAIT_FOR go NO_CLEAR_EVENT';
+SET debug_sync='rocksdb.autoinc_vars SIGNAL parked2 WAIT_FOR go2';
 send INSERT INTO t1 VALUES(NULL);
 
 # Wait for both threads to be at debug_sync point
@@ -34,7 +36,11 @@ SET debug_sync='now WAIT_FOR parked1';
 SET debug_sync='now WAIT_FOR parked2';
 
 # Signal both threads to continue
-SET debug_sync='now SIGNAL go';
+send SET debug_sync='now SIGNAL go1';
+connection con3;
+SET debug_sync='now SIGNAL go2';
+connection default;
+reap;
 
 connection con1;
 reap;