/* Copyright (c) 2022, 2024, 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 designed to work 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 either included with the program or referenced in the documentation. 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_DELEGATE_CONTROL_H #define MYSQL_TRANSACTION_DELEGATE_CONTROL_H #include /** A service to manage transactions execution. The service will stop new incoming transactions to execute. @note Some management related queries are allowed. @sa @ref mysql_new_transaction_control_imp */ BEGIN_SERVICE_DEFINITION(mysql_new_transaction_control) /** Method to stop new incoming transactions allowing some management queries to run. New incoming transactions are rolled back. @sa mysql_new_transaction_control_imp */ DECLARE_METHOD(void, stop, ()); /** Method that allows the transactions which were earlier stopped by stop method. @sa mysql_new_transaction_control_imp */ DECLARE_METHOD(void, allow, ()); END_SERVICE_DEFINITION(mysql_new_transaction_control) /** A service to manage transactions execution. This service rollbacks the transactions that reach the before_commit state. This service does not impact transactions that are already in the commit stage. @sa @ref mysql_before_commit_transaction_control_imp */ BEGIN_SERVICE_DEFINITION(mysql_before_commit_transaction_control) /** This method rollback any transaction that reaches the commit stage. @sa mysql_before_commit_transaction_control_imp */ DECLARE_METHOD(void, stop, ()); /** Method re-allows the commit, earlier stopped in stop function. @note Flag set in stop function to rollback the transactions in commit is unset. @sa mysql_before_commit_transaction_control_imp */ DECLARE_METHOD(void, allow, ()); END_SERVICE_DEFINITION(mysql_before_commit_transaction_control) /** This service will gracefully close all the client connections which are running a binloggable transaction that did not reach the commit stage. The term `bingloggable transactions` is used to identify transactions that will be written to the binary log once they do commit. At present when binlog cache is initialized by a transaction, the transaction is marked as `bingloggable`. @sa @ref mysql_close_connection_of_binloggable_transaction_not_reached_commit_imp */ BEGIN_SERVICE_DEFINITION( mysql_close_connection_of_binloggable_transaction_not_reached_commit) /** Method that gracefully closes all the client connections which are running a binloggable transaction that did not reach the commit stage. @note method sets the killed flag with value THD::KILL_CONNECTION in the THD to gracefully KILL the transaction and client connection. @sa mysql_close_connection_of_binloggable_transaction_not_reached_commit_imp */ DECLARE_METHOD(void, close, ()); END_SERVICE_DEFINITION( mysql_close_connection_of_binloggable_transaction_not_reached_commit) #endif /* MYSQL_TRANSACTION_DELEGATE_CONTROL_H */