107 lines
2.7 KiB
C++
107 lines
2.7 KiB
C++
/*
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Copyright (c) 2015, 2016 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 as published by
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the Free Software Foundation; version 2 of the License.
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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 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 "chain_data.h"
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#include "i_dump_task.h"
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#include "i_chain_element.h"
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#include "i_callable.h"
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#include "base/atomic.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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{
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public:
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Item_processing_data(Chain_data* chain_data,
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I_dump_task* process_task_object,
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I_chain_element* chain_element,
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const Mysql::I_callable<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 Mysql::I_callable<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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my_boost::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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}
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}
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}
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#endif
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