114 lines
3.2 KiB
C++
114 lines
3.2 KiB
C++
/*
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Copyright (c) 2015, 2017, 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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*/
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#ifndef ITEM_PROCESSING_DATA_INCLUDED
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#define ITEM_PROCESSING_DATA_INCLUDED
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#include <atomic>
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#include <functional>
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#include "client/dump/chain_data.h"
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#include "client/dump/i_chain_element.h"
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#include "client/dump/i_dump_task.h"
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namespace Mysql {
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namespace Tools {
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namespace Dump {
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/**
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Data structure for objects that are processed in any chain.
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*/
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class Item_processing_data {
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public:
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Item_processing_data(
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Chain_data *chain_data, I_dump_task *process_task_object,
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I_chain_element *chain_element,
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const std::function<void(Item_processing_data *)> *completion_callback,
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Item_processing_data *parent_item_data);
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~Item_processing_data();
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/**
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Returns chain data in which this item is being processed.
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*/
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Chain_data *get_chain() const;
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Item_processing_data *get_parent_item_data() const;
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void start_processing();
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bool end_processing();
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I_dump_task *get_process_task_object() const;
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I_chain_element *get_processing_chain_element() const;
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bool have_completion_callback();
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bool had_chain_created() const;
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void set_had_chain_created();
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void set_chain(Chain_data *);
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bool call_completion_callback_at_end();
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private:
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/**
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Chain in which current processing item is processed.
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*/
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Chain_data *m_chain_data;
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/**
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Instance of task object that is being processing.
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*/
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I_dump_task *m_process_task_object;
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/**
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Instance of chain element that is processing specified element.
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*/
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I_chain_element *m_chain_element;
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/**
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Callback to call after element is fully processed to the output. Can be
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NULL.
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*/
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const std::function<void(Item_processing_data *)> *m_completion_callback;
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/**
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Link to item process information of parent module execution, if exists.
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*/
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Item_processing_data *m_parent_item_data;
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/**
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Number of modules that have pending or are executing this task.
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*/
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std::atomic<uint32_t> m_active_executions;
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/**
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Indicates if this item led to creation of at least one new chain.
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*/
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bool m_had_chain_created;
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};
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} // namespace Dump
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} // namespace Tools
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} // namespace Mysql
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#endif
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