DatabaseWorker.cpp

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/*
 * This file is part of the TrinityCore 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/>.
 */
 
#include "DatabaseWorker.h"
#include "SQLOperation.h"
#include "ProducerConsumerQueue.h"
 
DatabaseWorker::DatabaseWorker(ProducerConsumerQueue<SQLOperation*>* newQueue, MySQLConnection* connection)
{
    _connection = connection;
    _queue = newQueue;
    _cancelationToken = false;
    _workerThread = std::thread(&DatabaseWorker::WorkerThread, this);
}
 
DatabaseWorker::~DatabaseWorker()
{
    _cancelationToken = true;
 
    _queue->Cancel();
 
    _workerThread.join();
}
 
void DatabaseWorker::WorkerThread()
{
    if (!_queue)
        return;
 
    for (;;)
    {
        SQLOperation* operation = nullptr;
 
        _queue->WaitAndPop(operation);
 
        if (_cancelationToken || !operation)
            return;
 
        operation->SetConnection(_connection);
        operation->call();
 
        delete operation;
    }
}