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/*
* This file is part of the AzerothCore Project. See AUTHORS file for Copyright information
*
* 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/>.
*/
#ifndef _MAP_UPDATER_H_INCLUDED
#define _MAP_UPDATER_H_INCLUDED
#include "Define.h"
#include "PCQueue.h"
#include <condition_variable>
#include <thread>
#include <atomic>
class Map;
class UpdateRequest;
class MapUpdater
{
public:
MapUpdater();
~MapUpdater() = default;
void schedule_task(UpdateRequest* request);
void schedule_update(Map& map, uint32 diff, uint32 s_diff);
void schedule_map_preload(uint32 mapid);
void schedule_lfg_update(uint32 diff);
void wait();
void activate(std::size_t num_threads);
void deactivate();
bool activated();
void update_finished();
private:
void WorkerThread();
ProducerConsumerQueue<UpdateRequest*> _queue;
std::atomic<int> pending_requests; // Use std::atomic for pending_requests to avoid lock contention
std::atomic<bool> _cancelationToken; // Atomic flag for cancellation to avoid race conditions
std::vector<std::thread> _workerThreads;
std::mutex _lock; // Mutex and condition variable for synchronization
std::condition_variable _condition;
};
#endif //_MAP_UPDATER_H_INCLUDED
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