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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
*/
#include "client/dump/abstract_crawler.h"
#include <stddef.h>
#include <atomic>
#include <chrono>
#include <functional>
#include <thread>
#include "client/dump/dump_end_dump_task.h"
using namespace Mysql::Tools::Dump;
std::atomic<uint64_t> Abstract_crawler::next_chain_id;
Abstract_crawler::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)
: Abstract_chain_element(message_handler, object_id_generator),
m_program(program) {}
Abstract_crawler::~Abstract_crawler() {
for (std::vector<I_dump_task *>::iterator it = m_dump_tasks_created.begin();
it != m_dump_tasks_created.end(); ++it) {
delete *it;
}
}
void Abstract_crawler::register_chain_maker(I_chain_maker *new_chain_maker) {
m_chain_makers.push_back(new_chain_maker);
}
Mysql::Tools::Base::Abstract_program *Abstract_crawler::get_program() {
return m_program;
}
void Abstract_crawler::process_dump_task(I_dump_task *new_dump_task) {
/*
Add the tasks to this list so that even if we error out,
cleanup is done properly.
*/
m_dump_tasks_created.push_back(new_dump_task);
/* in case of error stop all further processing */
if (get_program()->get_error_code()) return;
Item_processing_data *main_item_processing_data =
this->new_task_created(new_dump_task);
this->object_processing_starts(main_item_processing_data);
for (std::vector<I_chain_maker *>::iterator it = m_chain_makers.begin();
it != m_chain_makers.end(); ++it) {
uint64 new_chain_id = next_chain_id++;
Chain_data *chain_data = new Chain_data(new_chain_id);
I_object_reader *chain = (*it)->create_chain(chain_data, new_dump_task);
if (chain != nullptr) {
main_item_processing_data->set_chain(chain_data);
chain->read_object(this->new_chain_created(
chain_data, main_item_processing_data, chain));
} else {
delete chain_data;
}
}
this->object_processing_ends(main_item_processing_data);
}
void Abstract_crawler::wait_for_tasks_completion() {
for (std::vector<I_dump_task *>::iterator it = m_dump_tasks_created.begin();
it != m_dump_tasks_created.end(); ++it) {
while ((*it)->is_completed() == false) {
/* in case of error stop all running queues */
if (get_program()->get_error_code()) {
for (const auto &chain_maker : m_chain_makers) {
chain_maker->stop_queues();
}
return;
}
std::this_thread::sleep_for(std::chrono::milliseconds(1));
}
}
}
bool Abstract_crawler::need_callbacks_in_child() { return true; }
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