Just move, no code changes otherwise.

Part of MDEV-7974 - backport fix for mysql bug#12161 (XA and binlog)

1 files changed, 67 insertions, 0 deletions

diff --git a/sql/xa.h b/sql/xa.h
new file mode 100644
index 00000000000..e0ae834648e
--- /dev/null
+++ b/sql/xa.h
@@ -0,0 +1,67 @@
+/*
+   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
+*/
+
+
+enum xa_states {XA_NOTR=0, XA_ACTIVE, XA_IDLE, XA_PREPARED, XA_ROLLBACK_ONLY};
+extern const char *xa_state_names[];
+class XID_cache_element;
+
+struct XID_STATE {
+  /* For now, this is only used to catch duplicated external xids */
+  XID  xid;                           // transaction identifier
+  enum xa_states xa_state;            // used by external XA only
+  /* Error reported by the Resource Manager (RM) to the Transaction Manager. */
+  uint rm_error;
+  XID_cache_element *xid_cache_element;
+
+  /**
+    Check that XA transaction has an uncommitted work. Report an error
+    to the user in case when there is an uncommitted work for XA transaction.
+
+    @return  result of check
+      @retval  false  XA transaction is NOT in state IDLE, PREPARED
+                      or ROLLBACK_ONLY.
+      @retval  true   XA transaction is in state IDLE or PREPARED
+                      or ROLLBACK_ONLY.
+  */
+
+  bool check_has_uncommitted_xa() const
+  {
+    if (xa_state == XA_IDLE ||
+        xa_state == XA_PREPARED ||
+        xa_state == XA_ROLLBACK_ONLY)
+    {
+      my_error(ER_XAER_RMFAIL, MYF(0), xa_state_names[xa_state]);
+      return true;
+    }
+    return false;
+  }
+};
+
+void xid_cache_init(void);
+void xid_cache_free(void);
+bool xid_cache_insert(XID *xid, enum xa_states xa_state);
+bool xid_cache_insert(THD *thd, XID_STATE *xid_state);
+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 mysql_xa_recover(THD *thd);