86 lines
2.5 KiB
Objective-C
86 lines
2.5 KiB
Objective-C
/* Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
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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, version 2.0,
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as published by the Free Software Foundation.
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This program is also distributed with certain software (including
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but not limited to OpenSSL) that is licensed under separate terms,
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as designated in a particular file or component or in included license
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documentation. The authors of MySQL hereby grant you an additional
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permission to link the program and your derivative works with the
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separately licensed software that they have included with MySQL.
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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, version 2.0, 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 St, Fifth Floor, Boston, MA 02110-1301 USA */
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#ifndef HOLD_TRANSACTIONS_INCLUDE
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#define HOLD_TRANSACTIONS_INCLUDE
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#include "my_inttypes.h"
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#include "sql/sql_class.h"
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/**
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@class Hold_transactions
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Class that contains the logic to hold transactions when
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group_replication_consistency is set to BEFORE_ON_PRIMARY_FAILOVER
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*/
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class Hold_transactions {
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public:
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/**
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Class constructor for hold transaction logic
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*/
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Hold_transactions();
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/**
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Class destructor for hold transaction logic
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*/
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~Hold_transactions();
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/**
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Method to enable the hold of transactions when a primary election is
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occurring
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*/
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void enable();
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/**
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Method to resume transactions on hold, primary election ended
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*/
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void disable();
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/**
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Method to wait for a primary failover to be complete
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@param hold_timeout seconds to abort wait
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@return the operation status
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@retval 0 if success
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@retval !=0 mysqld error code
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*/
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int wait_until_primary_failover_complete(ulong hold_timeout);
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private:
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/**
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Method to verify if thread is killed
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*/
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bool is_thread_killed() {
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return current_thd != NULL && current_thd->is_killed();
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}
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/** is plugin currently applying backlog */
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bool applying_backlog = false;
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/** protect and notify changes on applying_backlog */
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mysql_mutex_t primary_promotion_policy_mutex;
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mysql_cond_t primary_promotion_policy_condition;
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};
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#endif /* HOLD_TRANSACTIONS_INCLUDE */
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