WorldRunnable.cpp

/**
 * MaNGOS is a full featured server for World of Warcraft, supporting
 * the following clients: 1.12.x, 2.4.3, 3.3.5a, 4.3.4a and 5.4.8
 *
 * Copyright (C) 2005-2017  MaNGOS project <https://getmangos.eu>
 *
 * 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * World of Warcraft, and all World of Warcraft or Warcraft art, images,
 * and lore are copyrighted by Blizzard Entertainment, Inc.
 */

/** \file
    \ingroup mangosd
*/

#include "WorldSocketMgr.h"
#include "Common.h"
#include "World.h"
#include "WorldRunnable.h"
#include "Timer.h"
#include "ObjectAccessor.h"
#include "MapManager.h"

#include "Database/DatabaseEnv.h"

#ifdef ENABLE_ELUNA 
#include "LuaEngine.h" 
#endif /* ENABLE_ELUNA */ 

#define WORLD_SLEEP_CONST 50

#ifdef WIN32
#include "ServiceWin32.h"
extern int m_ServiceStatus;
#endif

/// Heartbeat for the World
void WorldRunnable::run()
{
#ifdef ENABLE_ELUNA
    sEluna->OnStartup();
#endif /* ENABLE_ELUNA */

#if (!defined(CLASSIC))
    uint32 realCurrTime = 0;
    uint32 realPrevTime = WorldTimer::tick();
#endif

    uint32 prevSleepTime = 0;                               // used for balanced full tick time length near WORLD_SLEEP_CONST

    ///- While we have not World::m_stopEvent, update the world
    while (!World::IsStopped())
    {
        ++World::m_worldLoopCounter;
#if (!defined(CLASSIC))
        realCurrTime = WorldTimer::getMSTime();
#endif

        uint32 diff = WorldTimer::tick();

        sWorld.Update(diff);
#if (!defined(CLASSIC))
        realPrevTime = realCurrTime;
#endif

        // diff (D0) include time of previous sleep (d0) + tick time (t0)
        // we want that next d1 + t1 == WORLD_SLEEP_CONST
        // we can't know next t1 and then can use (t0 + d1) == WORLD_SLEEP_CONST requirement
        // d1 = WORLD_SLEEP_CONST - t0 = WORLD_SLEEP_CONST - (D0 - d0) = WORLD_SLEEP_CONST + d0 - D0
        if (diff <= WORLD_SLEEP_CONST + prevSleepTime)
        {
            prevSleepTime = WORLD_SLEEP_CONST + prevSleepTime - diff;
            ACE_Based::Thread::Sleep(prevSleepTime);
        }
        else
        {
            prevSleepTime = 0;
        }

#ifdef _WIN32
        if (m_ServiceStatus == 0)
        {
            World::StopNow(SHUTDOWN_EXIT_CODE);
        }

        while (m_ServiceStatus == 2)
            Sleep(1000);
#endif
    }

#ifdef ENABLE_ELUNA
    sEluna->OnShutdown();
#endif /* ENABLE_ELUNA */

    sWorld.KickAll();                                       // save and kick all players
    sWorld.UpdateSessions(1);                               // real players unload required UpdateSessions call

    sWorldSocketMgr->StopNetwork();

    sMapMgr.UnloadAll();                                    // unload all grids (including locked in memory)

#ifdef ENABLE_ELUNA
    // Eluna must be unloaded after Maps, since ~Map calls sEluna->OnDestroy,
    //   and must be unloaded before the DB, since it can access the DB.
    Eluna::Uninitialize();
#endif /* ENABLE_ELUNA */
}