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/*
* Copyright (C) 2008-2014 TrinityCore <http://www.trinitycore.org/>
* Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/>
*
* 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; either version 2 of the License, or (at your
* option) any later version.
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#include <mutex>
#include <condition_variable>
#include <ace/Method_Request.h>
#include "MapUpdater.h"
#include "DelayExecutor.h"
#include "Map.h"
#include "DatabaseEnv.h"
class MapUpdateRequest : public ACE_Method_Request
{
private:
Map& m_map;
MapUpdater& m_updater;
ACE_UINT32 m_diff;
public:
MapUpdateRequest(Map& m, MapUpdater& u, ACE_UINT32 d)
: m_map(m), m_updater(u), m_diff(d)
{
}
virtual int call()
{
m_map.Update (m_diff);
m_updater.update_finished();
return 0;
}
};
MapUpdater::MapUpdater(): m_executor(), pending_requests(0) { }
MapUpdater::~MapUpdater()
{
deactivate();
}
int MapUpdater::activate(size_t num_threads)
{
return m_executor.start((int)num_threads);
}
int MapUpdater::deactivate()
{
wait();
return m_executor.deactivate();
}
int MapUpdater::wait()
{
std::unique_lock<std::mutex> lock(_lock);
while (pending_requests > 0)
_condition.wait(lock);
lock.unlock();
return 0;
}
int MapUpdater::schedule_update(Map& map, ACE_UINT32 diff)
{
std::lock_guard<std::mutex> lock(_lock);
++pending_requests;
if (m_executor.execute(new MapUpdateRequest(map, *this, diff)) == -1)
{
ACE_DEBUG((LM_ERROR, ACE_TEXT("(%t) \n"), ACE_TEXT("Failed to schedule Map Update")));
--pending_requests;
return -1;
}
return 0;
}
bool MapUpdater::activated()
{
return m_executor.activated();
}
void MapUpdater::update_finished()
{
std::lock_guard<std::mutex> lock(_lock);
if (pending_requests == 0)
{
ACE_ERROR((LM_ERROR, ACE_TEXT("(%t)\n"), ACE_TEXT("MapUpdater::update_finished BUG, report to devs")));
return;
}
--pending_requests;
_condition.notify_all();
}
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