Refs codership/mysql-wsrep#33

  1. factored XID-related functions to a separate wsrep_xid.cc unit.
  2. refactored them to take refrences instead of pointers where appropriate
  3. implemented wsrep_get/set_SE_position to take wsrep_uuid_t and wsrep_seqno_t instead of XID
  4. call wsrep_set_SE_position() in wsrep_sst_received() to reinitialize SE checkpoint after SST was received, avoid assert() in setting code by first checking current position.

1 files changed, 33 insertions, 0 deletions

diff --git a/sql/wsrep_xid.h b/sql/wsrep_xid.h
new file mode 100644
index 00000000000..8a43e49c733
--- /dev/null
+++ b/sql/wsrep_xid.h
@@ -0,0 +1,33 @@
+/* Copyright (C) 2015 Codership Oy <info@codership.com>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; version 2 of the License.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along
+   with this program; if not, write to the Free Software Foundation, Inc.,
+   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */
+
+#ifndef WSREP_XID_H
+#define WSREP_XID_H
+
+#include <my_config.h>
+#include "../wsrep/wsrep_api.h"
+#include "handler.h" // XID typedef
+
+void wsrep_xid_init(xid_t*, const wsrep_uuid_t&, wsrep_seqno_t);
+int wsrep_is_wsrep_xid(const void* xid);
+const wsrep_uuid_t* wsrep_xid_uuid(const XID&);
+wsrep_seqno_t wsrep_xid_seqno(const XID&);
+
+//void wsrep_get_SE_checkpoint(XID&);             /* uncomment if needed */
+void wsrep_get_SE_checkpoint(wsrep_uuid_t&, wsrep_seqno_t&);
+//void wsrep_set_SE_checkpoint(XID&);             /* uncomment if needed */
+void wsrep_set_SE_checkpoint(const wsrep_uuid_t&, wsrep_seqno_t);
+
+#endif /* WSREP_UTILS_H */