mysql5/mysql-5.7.27/client/dump/item_processing_data.cc

110 lines
2.6 KiB
C++

/*
Copyright (c) 2015, 2016 Oracle and/or its affiliates. All rights reserved.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
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 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 "item_processing_data.h"
using namespace Mysql::Tools::Dump;
Item_processing_data::Item_processing_data(
Chain_data* chain_data, I_dump_task* process_task_object,
I_chain_element* chain_element,
const Mysql::I_callable<void, Item_processing_data*>* completion_callback,
Item_processing_data* parent_item_data)
: m_chain_data(chain_data),
m_process_task_object(process_task_object),
m_chain_element(chain_element),
m_completion_callback(completion_callback),
m_parent_item_data(parent_item_data),
m_active_executions(0),
m_had_chain_created(false)
{}
Item_processing_data::~Item_processing_data()
{
// Check if it is last item in the chain.
if (get_parent_item_data() == NULL)
delete m_chain_data;
}
Chain_data* Item_processing_data::get_chain() const
{
return m_chain_data;
}
Item_processing_data* Item_processing_data::get_parent_item_data() const
{
return m_parent_item_data;
}
void Item_processing_data::start_processing()
{
m_active_executions++;
}
bool Item_processing_data::end_processing()
{
if (--m_active_executions == 0)
{
return true;
}
return false;
}
I_dump_task* Item_processing_data::get_process_task_object() const
{
return m_process_task_object;
}
I_chain_element* Item_processing_data::get_processing_chain_element() const
{
return m_chain_element;
}
bool Item_processing_data::have_completion_callback()
{
return m_completion_callback != NULL;
}
bool Item_processing_data::had_chain_created() const
{
return m_had_chain_created;
}
void Item_processing_data::set_had_chain_created()
{
m_had_chain_created= true;
}
void Item_processing_data::set_chain(Chain_data* chain_data)
{
m_chain_data= chain_data;
}
bool Item_processing_data::call_completion_callback_at_end()
{
if (m_active_executions == 0)
{
if (m_completion_callback != NULL)
{
(*m_completion_callback)(this);
m_completion_callback= NULL;
}
return true;
}
return false;
}