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

98 lines
2.7 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 "abstract_dump_task.h"
using namespace Mysql::Tools::Dump;
Abstract_dump_task::Abstract_dump_task(Abstract_data_object* related_object)
: m_related_object(related_object)
{}
Abstract_dump_task::~Abstract_dump_task()
{}
I_data_object* Abstract_dump_task::get_related_db_object() const
{
return m_related_object;
}
void Abstract_dump_task::check_execution_availability()
{
if (m_availability_callbacks.size() > 0 && this->can_be_executed())
{
my_boost::mutex::scoped_lock lock(m_task_mutex);
for (std::vector<Mysql::I_callable<void, const Abstract_dump_task*>*>
::const_iterator it = m_availability_callbacks.begin();
it != m_availability_callbacks.end(); ++it)
{
(**it)(this);
}
m_availability_callbacks.clear();
}
}
void Abstract_dump_task::register_execution_availability_callback(
Mysql::I_callable<void, const Abstract_dump_task*>* availability_callback)
{
my_boost::mutex::scoped_lock lock(m_task_mutex);
m_availability_callbacks.push_back(availability_callback);
}
void Abstract_dump_task::set_completed()
{
Abstract_simple_dump_task::set_completed();
my_boost::mutex::scoped_lock lock(m_task_mutex);
for (std::vector<Abstract_dump_task*>::iterator
it= m_dependents.begin(); it != m_dependents.end(); ++it)
{
(*it)->check_execution_availability();
}
}
bool Abstract_dump_task::can_be_executed() const
{
for (std::vector<const Abstract_dump_task*>::const_iterator it=
m_dependencies.begin(); it != m_dependencies.end(); ++it)
{
if ((*it)->is_completed() == false)
return false;
}
return true;
}
void Abstract_dump_task::add_dependency(Abstract_dump_task* dependency)
{
m_dependencies.push_back(dependency);
my_boost::mutex::scoped_lock lock(dependency->m_task_mutex);
dependency->m_dependents.push_back(this);
}
std::vector<Abstract_dump_task*> Abstract_dump_task::get_dependents()
const
{
return m_dependents;
}
std::vector<const Abstract_dump_task*> Abstract_dump_task::get_dependencies()
const
{
return m_dependencies;
}