96 lines
3.2 KiB
C++
96 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 ABSTRACT_CRAWLER_INCLUDED
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#define ABSTRACT_CRAWLER_INCLUDED
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#include <atomic>
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#include <functional>
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#include "client/base/abstract_program.h"
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#include "client/dump/abstract_chain_element.h"
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#include "client/dump/i_chain_maker.h"
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#include "client/dump/i_crawler.h"
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#include "client/dump/i_dump_task.h"
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#include "my_inttypes.h"
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namespace Mysql {
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namespace Tools {
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namespace Dump {
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class Abstract_crawler : public Abstract_chain_element,
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public virtual I_crawler {
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public:
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/**
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Adds new Chain Maker to ask for chains for found objects.
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*/
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virtual void register_chain_maker(I_chain_maker *new_chain_maker);
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// Fix "inherits ... via dominance" warnings
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void register_progress_watcher(I_progress_watcher *new_progress_watcher) {
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Abstract_chain_element::register_progress_watcher(new_progress_watcher);
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}
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// Fix "inherits ... via dominance" warnings
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uint64 get_id() const { return Abstract_chain_element::get_id(); }
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~Abstract_crawler();
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protected:
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Abstract_crawler(std::function<bool(const Mysql::Tools::Base::Message_data &)>
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*message_handler,
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Simple_id_generator *object_id_generator,
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Mysql::Tools::Base::Abstract_program *program);
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/**
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Routine for performing common work on each enumerated DB object.
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*/
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void process_dump_task(I_dump_task *new_dump_task);
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void wait_for_tasks_completion();
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bool need_callbacks_in_child();
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// Fix "inherits ... via dominance" warnings
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void item_completion_in_child_callback(Item_processing_data *item_processed) {
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Abstract_chain_element::item_completion_in_child_callback(item_processed);
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}
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Mysql::Tools::Base::Abstract_program *get_program();
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private:
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std::vector<I_chain_maker *> m_chain_makers;
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std::vector<I_dump_task *> m_dump_tasks_created;
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/**
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Stores next chain ID to be used. Used as ID generator.
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*/
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static std::atomic<uint64_t> next_chain_id;
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Mysql::Tools::Base::Abstract_program *m_program;
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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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