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f189f34ed4
XID_STATE::rm_error is never used by internal 2PC, it is intended to be used by explicit XA only. Also removed redundant xid reset from THD::init_for_queries(). Must've been done already either by THD::transaction constructor or by THD::cleanup(). Part of MDEV-7974 - backport fix for mysql bug#12161 (XA and binlog)
68 lines
2.3 KiB
C++
68 lines
2.3 KiB
C++
/*
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Copyright (c) 2000, 2016, Oracle and/or its affiliates.
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Copyright (c) 2009, 2019, MariaDB Corporation.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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enum xa_states {XA_NOTR=0, XA_ACTIVE, XA_IDLE, XA_PREPARED, XA_ROLLBACK_ONLY};
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extern const char *xa_state_names[];
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class XID_cache_element;
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struct XID_STATE {
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/* For now, this is only used to catch duplicated external xids */
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XID xid; // transaction identifier
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enum xa_states xa_state; // used by external XA only
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XID_cache_element *xid_cache_element;
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/**
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Check that XA transaction has an uncommitted work. Report an error
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to the user in case when there is an uncommitted work for XA transaction.
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@return result of check
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@retval false XA transaction is NOT in state IDLE, PREPARED
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or ROLLBACK_ONLY.
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@retval true XA transaction is in state IDLE or PREPARED
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or ROLLBACK_ONLY.
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*/
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bool check_has_uncommitted_xa() const
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{
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if (xa_state == XA_IDLE ||
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xa_state == XA_PREPARED ||
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xa_state == XA_ROLLBACK_ONLY)
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{
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my_error(ER_XAER_RMFAIL, MYF(0), xa_state_names[xa_state]);
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return true;
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}
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return false;
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}
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bool is_explicit_XA() const { return xid_cache_element != 0; }
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void set_error(uint error);
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};
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void xid_cache_init(void);
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void xid_cache_free(void);
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bool xid_cache_insert(XID *xid, enum xa_states xa_state);
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bool xid_cache_insert(THD *thd, XID_STATE *xid_state);
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void xid_cache_delete(THD *thd, XID_STATE *xid_state);
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bool trans_xa_start(THD *thd);
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bool trans_xa_end(THD *thd);
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bool trans_xa_prepare(THD *thd);
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bool trans_xa_commit(THD *thd);
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bool trans_xa_rollback(THD *thd);
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bool mysql_xa_recover(THD *thd);
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