MDEV-4506: Parallel replication of group-committed transactions: Intermediate commit

First very rough sketch. We spawn and retire a pool of slave threads.
Test main.alias works, most likely not much else does.

1 files changed, 2 insertions, 0 deletions

diff --git a/sql/rpl_rli.h b/sql/rpl_rli.h
index 6dd757343fd..452457e9e5a 100644
--- a/sql/rpl_rli.h
+++ b/sql/rpl_rli.h
@@ -22,6 +22,7 @@
 #include "log.h"                         /* LOG_INFO, MYSQL_BIN_LOG */
 #include "sql_class.h"                   /* THD */
 #include "log_event.h"
+#include "rpl_parallel.h"
 
 struct RPL_TABLE_LIST;
 class Master_info;
@@ -318,6 +319,7 @@ public:
   */
   uint64 gtid_sub_id;
   rpl_gtid current_gtid;
+  rpl_parallel parallel;
 
   Relay_log_info(bool is_slave_recovery);
   ~Relay_log_info();