refs #5351 fix a mysql test failure caused by non-shared read locks. turns out...

refs #5351 fix a mysql test failure caused by non-shared read locks. turns out the real error is that we do not consistently return ER_LOCK_WAIT_TIMEOUT on cursor errors, so mysql-tests can be very fragile.


git-svn-id: file:///svn/mysql/tokudb-engine/tokudb-engine@50139 c7de825b-a66e-492c-adef-691d508d4ae1

storage/tokudb/ha_tokudb.cc

@@ -4320,6 +4320,9 @@ int ha_tokudb::prepare_index_key_scan(const uchar * key, uint key_len) {
     error = 0;
 cleanup:
     if (error) {
+        if (error == DB_LOCK_NOTGRANTED) {
+            error = HA_ERR_LOCK_WAIT_TIMEOUT;
+        }
         last_cursor_error = error;
         //
         // cursor should be initialized here, but in case it is not,