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+#ifndef XA_INCLUDED
+#define XA_INCLUDED
+/*
+ Copyright (c) 2000, 2016, Oracle and/or its affiliates.
+ Copyright (c) 2009, 2019, MariaDB Corporation.
+
+ 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
+*/
+
+class XID_cache_element;
+enum xa_states
+{
+ XA_ACTIVE= 0,
+ XA_IDLE,
+ XA_PREPARED,
+ XA_ROLLBACK_ONLY,
+ XA_NO_STATE
+};
+
+struct XID_STATE {
+ XID_cache_element *xid_cache_element;
+
+ bool check_has_uncommitted_xa() const;
+ bool is_explicit_XA() const { return xid_cache_element != 0; }
+ void set_error(uint error);
+ void er_xaer_rmfail() const;
+ XID *get_xid() const;
+ enum xa_states get_state_code() const;
+};
+
+void xid_cache_init(void);
+void xid_cache_free(void);
+bool xid_cache_insert(XID *xid);
+bool xid_cache_insert(THD *thd, XID_STATE *xid_state, XID *xid);
+void xid_cache_delete(THD *thd, XID_STATE *xid_state);
+
+bool trans_xa_start(THD *thd);
+bool trans_xa_end(THD *thd);
+bool trans_xa_prepare(THD *thd);
+bool trans_xa_commit(THD *thd);
+bool trans_xa_rollback(THD *thd);
+bool trans_xa_detach(THD *thd);
+bool mysql_xa_recover(THD *thd);
+
+#endif /* XA_INCLUDED */