晋太元中,武陵人捕鱼为业。缘溪行,忘路之远近。忽逢桃花林,夹岸数百步,中无杂树,芳草鲜美,落英缤纷。渔人甚异之,复前行,欲穷其林。 林尽水源,便得一山,山有小口,仿佛若有光。便舍船,从口入。初极狭,才通人。复行数十步,豁然开朗。土地平旷,屋舍俨然,有良田、美池、桑竹之属。阡陌交通,鸡犬相闻。其中往来种作,男女衣着,悉如外人。黄发垂髫,并怡然自乐。 见渔人,乃大惊,问所从来。具答之。便要还家,设酒杀鸡作食。村中闻有此人,咸来问讯。自云先世避秦时乱,率妻子邑人来此绝境,不复出焉,遂与外人间隔。问今是何世,乃不知有汉,无论魏晋。此人一一为具言所闻,皆叹惋。余人各复延至其家,皆出酒食。停数日,辞去。此中人语云:“不足为外人道也。”(间隔 一作:隔绝) 既出,得其船,便扶向路,处处志之。及郡下,诣太守,说如此。太守即遣人随其往,寻向所志,遂迷,不复得路。 南阳刘子骥,高尚士也,闻之,欣然规往。未果,寻病终。后遂无问津者。
| DIR:/usr/include/mysql/server/mysql/psi/ |
| Current File : //usr/include/mysql/server/mysql/psi/mysql_transaction.h |
/* Copyright (c) 2013, 2023, Oracle and/or its affiliates.
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 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.
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 */
#ifndef MYSQL_TRANSACTION_H
#define MYSQL_TRANSACTION_H
/**
@file mysql/psi/mysql_transaction.h
Instrumentation helpers for transactions.
*/
#include "mysql/psi/psi.h"
#ifndef PSI_TRANSACTION_CALL
#define PSI_TRANSACTION_CALL(M) PSI_DYNAMIC_CALL(M)
#endif
/**
@defgroup Transaction_instrumentation Transaction Instrumentation
@ingroup Instrumentation_interface
@{
*/
#ifdef HAVE_PSI_TRANSACTION_INTERFACE
#define MYSQL_START_TRANSACTION(STATE, XID, TRXID, ISO, RO, AC) \
inline_mysql_start_transaction(STATE, XID, TRXID, ISO, RO, AC, __FILE__, __LINE__)
#else
#define MYSQL_START_TRANSACTION(STATE, XID, TRXID, ISO, RO, AC) \
0
#endif
#ifdef HAVE_PSI_TRANSACTION_INTERFACE
#define MYSQL_SET_TRANSACTION_GTID(LOCKER, P1, P2) \
inline_mysql_set_transaction_gtid(LOCKER, P1, P2)
#else
#define MYSQL_SET_TRANSACTION_GTID(LOCKER, P1, P2) \
do {} while (0)
#endif
#ifdef HAVE_PSI_TRANSACTION_INTERFACE
#define MYSQL_SET_TRANSACTION_XID(LOCKER, P1, P2) \
inline_mysql_set_transaction_xid(LOCKER, P1, P2)
#else
#define MYSQL_SET_TRANSACTION_XID(LOCKER, P1, P2) \
do {} while (0)
#endif
#ifdef HAVE_PSI_TRANSACTION_INTERFACE
#define MYSQL_SET_TRANSACTION_XA_STATE(LOCKER, P1) \
inline_mysql_set_transaction_xa_state(LOCKER, P1)
#else
#define MYSQL_SET_TRANSACTION_XA_STATE(LOCKER, P1) \
do {} while (0)
#endif
#ifdef HAVE_PSI_TRANSACTION_INTERFACE
#define MYSQL_SET_TRANSACTION_TRXID(LOCKER, P1) \
inline_mysql_set_transaction_trxid(LOCKER, P1)
#else
#define MYSQL_SET_TRANSACTION_TRXID(LOCKER, P1) \
do {} while (0)
#endif
#ifdef HAVE_PSI_TRANSACTION_INTERFACE
#define MYSQL_INC_TRANSACTION_SAVEPOINTS(LOCKER, P1) \
inline_mysql_inc_transaction_savepoints(LOCKER, P1)
#else
#define MYSQL_INC_TRANSACTION_SAVEPOINTS(LOCKER, P1) \
do {} while (0)
#endif
#ifdef HAVE_PSI_TRANSACTION_INTERFACE
#define MYSQL_INC_TRANSACTION_ROLLBACK_TO_SAVEPOINT(LOCKER, P1) \
inline_mysql_inc_transaction_rollback_to_savepoint(LOCKER, P1)
#else
#define MYSQL_INC_TRANSACTION_ROLLBACK_TO_SAVEPOINT(LOCKER, P1) \
do {} while (0)
#endif
#ifdef HAVE_PSI_TRANSACTION_INTERFACE
#define MYSQL_INC_TRANSACTION_RELEASE_SAVEPOINT(LOCKER, P1) \
inline_mysql_inc_transaction_release_savepoint(LOCKER, P1)
#else
#define MYSQL_INC_TRANSACTION_RELEASE_SAVEPOINT(LOCKER, P1) \
do {} while (0)
#endif
#ifdef HAVE_PSI_TRANSACTION_INTERFACE
#define MYSQL_ROLLBACK_TRANSACTION(LOCKER) \
inline_mysql_rollback_transaction(LOCKER)
#else
#define MYSQL_ROLLBACK_TRANSACTION(LOCKER) \
do { } while(0)
#endif
#ifdef HAVE_PSI_TRANSACTION_INTERFACE
#define MYSQL_COMMIT_TRANSACTION(LOCKER) \
inline_mysql_commit_transaction(LOCKER)
#else
#define MYSQL_COMMIT_TRANSACTION(LOCKER) \
do { } while(0)
#endif
#ifdef HAVE_PSI_TRANSACTION_INTERFACE
static inline struct PSI_transaction_locker *
inline_mysql_start_transaction(PSI_transaction_locker_state *state,
const void *xid,
ulonglong trxid,
int isolation_level,
my_bool read_only,
my_bool autocommit,
const char *src_file, int src_line)
{
PSI_transaction_locker *locker;
locker= PSI_TRANSACTION_CALL(get_thread_transaction_locker)(state,
xid, trxid,
isolation_level,
read_only,
autocommit);
if (likely(locker != NULL))
PSI_TRANSACTION_CALL(start_transaction)(locker, src_file, src_line);
return locker;
}
static inline void
inline_mysql_set_transaction_gtid(PSI_transaction_locker *locker,
const void *sid,
const void *gtid_spec)
{
if (likely(locker != NULL))
PSI_TRANSACTION_CALL(set_transaction_gtid)(locker, sid, gtid_spec);
}
static inline void
inline_mysql_set_transaction_xid(PSI_transaction_locker *locker,
const void *xid,
int xa_state)
{
if (likely(locker != NULL))
PSI_TRANSACTION_CALL(set_transaction_xid)(locker, xid, xa_state);
}
static inline void
inline_mysql_set_transaction_xa_state(PSI_transaction_locker *locker,
int xa_state)
{
if (likely(locker != NULL))
PSI_TRANSACTION_CALL(set_transaction_xa_state)(locker, xa_state);
}
static inline void
inline_mysql_set_transaction_trxid(PSI_transaction_locker *locker,
const ulonglong *trxid)
{
if (likely(locker != NULL))
PSI_TRANSACTION_CALL(set_transaction_trxid)(locker, trxid);
}
static inline void
inline_mysql_inc_transaction_savepoints(PSI_transaction_locker *locker,
ulong count)
{
if (likely(locker != NULL))
PSI_TRANSACTION_CALL(inc_transaction_savepoints)(locker, count);
}
static inline void
inline_mysql_inc_transaction_rollback_to_savepoint(PSI_transaction_locker *locker,
ulong count)
{
if (likely(locker != NULL))
PSI_TRANSACTION_CALL(inc_transaction_rollback_to_savepoint)(locker, count);
}
static inline void
inline_mysql_inc_transaction_release_savepoint(PSI_transaction_locker *locker,
ulong count)
{
if (likely(locker != NULL))
PSI_TRANSACTION_CALL(inc_transaction_release_savepoint)(locker, count);
}
static inline void
inline_mysql_rollback_transaction(struct PSI_transaction_locker *locker)
{
if (likely(locker != NULL))
PSI_TRANSACTION_CALL(end_transaction)(locker, false);
}
static inline void
inline_mysql_commit_transaction(struct PSI_transaction_locker *locker)
{
if (likely(locker != NULL))
PSI_TRANSACTION_CALL(end_transaction)(locker, true);
}
#endif
/** @} (end of group Transaction_instrumentation) */
#endif
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