96 lines
2.7 KiB
C++
96 lines
2.7 KiB
C++
/* Copyright (c) 2018, 2021, Alibaba and/or its affiliates. All rights reserved.
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License, version 2.0,
|
|
as published by the Free Software Foundation.
|
|
This program is also distributed with certain software (including
|
|
but not limited to OpenSSL) that is licensed under separate terms,
|
|
as designated in a particular file or component or in included license
|
|
documentation. The authors of MySQL/PolarDB-X Engine hereby grant you an
|
|
additional permission to link the program and your derivative works with the
|
|
separately licensed software that they have included with
|
|
MySQL/PolarDB-X Engine.
|
|
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, version 2.0, 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 St, Fifth Floor, Boston, MA 02110-1301 USA */
|
|
|
|
|
|
/** @file include/lizard0xa.h
|
|
Lizard XA transaction structure.
|
|
|
|
Created 2021-08-10 by Jianwei.zhao
|
|
*******************************************************/
|
|
|
|
#ifndef lizard0xa_h
|
|
#define lizard0xa_h
|
|
|
|
#include <string>
|
|
#include <unordered_set>
|
|
|
|
#include "trx0types.h"
|
|
#include "trx0xa.h"
|
|
#include "lizard0xa0types.h"
|
|
|
|
namespace lizard {
|
|
class Vision;
|
|
}
|
|
|
|
/**
|
|
The description of XA transaction within trx_t
|
|
*/
|
|
typedef struct xa_desc_t {
|
|
public:
|
|
explicit xa_desc_t() : xid(), group() {}
|
|
virtual ~xa_desc_t() { reset(); }
|
|
|
|
void reset() { xid.null(); }
|
|
|
|
bool is_null() const { return xid.is_null(); }
|
|
|
|
const XID *my_xid() const { return &xid; }
|
|
|
|
void build_group() { return; }
|
|
|
|
private:
|
|
/** Whether valid is determined by xid.is_null() */
|
|
XID xid;
|
|
|
|
/**
|
|
For future:
|
|
Building group in advance can improve the performance of collecting group_ids
|
|
when open new vision;
|
|
*/
|
|
std::string group;
|
|
|
|
} XAD;
|
|
|
|
/**
|
|
Loop all the rw trx to find the same group transaction and
|
|
push trx_id into group container.
|
|
|
|
@param[in] trx current trx handler
|
|
@param[in] vision current query view
|
|
*/
|
|
extern void vision_collect_trx_group_ids(const trx_t *my_trx,
|
|
lizard::Vision *vision);
|
|
|
|
extern bool thd_get_transaction_group(THD *thd);
|
|
|
|
#if defined UNIV_DEBUG || defined LIZARD_DEBUG
|
|
|
|
#define assert_xad_state_initial(trx) \
|
|
do { \
|
|
ut_a(trx->xad.is_null() == true); \
|
|
} while (0)
|
|
|
|
#else
|
|
|
|
#define assert_xad_state_initial(trx)
|
|
|
|
#endif // defined UNIV_DEBUG || defined LIZARD_DEBUG
|
|
|
|
#endif
|