Files
CypherCore/Source/Game/Maps/MapUpdater.cs
T
2018-01-02 13:02:21 -05:00

106 lines
2.7 KiB
C#

/*
* Copyright (C) 2012-2018 CypherCore <http://github.com/CypherCore>
*
* 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 3 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/>.
*/
using System;
using System.Collections.Generic;
using System.Threading;
namespace Game.Maps
{
public class MapUpdater : IDisposable
{
public MapUpdater(int numThreads)
{
_queue = new Queue<MapUpdateRequest>();
autoResetEvent = new AutoResetEvent[numThreads];
for (var i = 0; i < numThreads; ++i)
{
autoResetEvent[i] = new AutoResetEvent(false);
ThreadPool.QueueUserWorkItem(new WaitCallback(OnEnqueue), autoResetEvent[i]);
}
}
public void Enqueue(Map map, uint diff)
{
lock (_syncLock)
{
_queue.Enqueue(new MapUpdateRequest(map, diff));
Monitor.PulseAll(_syncLock);
}
}
protected void OnEnqueue(object state)
{
while (true)
{
lock (_syncLock)
{
if (_queue.Count == 0)
{
((AutoResetEvent)state).Set();
Monitor.Wait(_syncLock);
}
if (_queue.Count > 0)
{
_queue.Dequeue().Call();
}
}
}
}
public void Wait()
{
WaitHandle.WaitAll(autoResetEvent);
}
public void Dispose()
{
lock (_syncLock)
{
Monitor.PulseAll(_syncLock);
}
}
private Queue<MapUpdateRequest> _queue;
private object _syncLock = new object();
private AutoResetEvent[] autoResetEvent;
}
public class MapUpdateRequest
{
Map m_map;
uint m_diff;
public MapUpdateRequest(Map m, uint d)
{
m_map = m;
m_diff = d;
}
public void Call()
{
m_map.Update(m_diff);
}
public uint GetId()
{
return m_map.GetId();
}
}
}