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/*
Copyright (c) 2015, 2025, 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 ABSTRACT_CRAWLER_INCLUDED
#define ABSTRACT_CRAWLER_INCLUDED
#include <atomic>
#include <functional>
#include "client/base/abstract_program.h"
#include "client/dump/abstract_chain_element.h"
#include "client/dump/i_chain_maker.h"
#include "client/dump/i_crawler.h"
#include "client/dump/i_dump_task.h"
#include "my_inttypes.h"
namespace Mysql {
namespace Tools {
namespace Dump {
class Abstract_crawler : public Abstract_chain_element,
public virtual I_crawler {
public:
/**
Adds new Chain Maker to ask for chains for found objects.
*/
void register_chain_maker(I_chain_maker *new_chain_maker) override;
// Fix "inherits ... via dominance" warnings
void register_progress_watcher(
I_progress_watcher *new_progress_watcher) override {
Abstract_chain_element::register_progress_watcher(new_progress_watcher);
}
// Fix "inherits ... via dominance" warnings
uint64 get_id() const override { return Abstract_chain_element::get_id(); }
~Abstract_crawler() override;
protected:
Abstract_crawler(std::function<bool(const Mysql::Tools::Base::Message_data &)>
*message_handler,
Simple_id_generator *object_id_generator,
Mysql::Tools::Base::Abstract_program *program);
/**
Routine for performing common work on each enumerated DB object.
*/
void process_dump_task(I_dump_task *new_dump_task);
void wait_for_tasks_completion();
bool need_callbacks_in_child() override;
// Fix "inherits ... via dominance" warnings
void item_completion_in_child_callback(
Item_processing_data *item_processed) override {
Abstract_chain_element::item_completion_in_child_callback(item_processed);
}
Mysql::Tools::Base::Abstract_program *get_program();
private:
std::vector<I_chain_maker *> m_chain_makers;
std::vector<I_dump_task *> m_dump_tasks_created;
/**
Stores next chain ID to be used. Used as ID generator.
*/
static std::atomic<uint64_t> next_chain_id;
Mysql::Tools::Base::Abstract_program *m_program;
};
} // namespace Dump
} // namespace Tools
} // namespace Mysql
#endif
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