//Idle Time 60S 是參考以下網址
//https://doc.zeroc.com/pages/viewpage.action?pageId=16716652#Ice.ThreadPool.*-Ice.ThreadPool.name.ThreadIdleTime
/// <summary>
/// 初始化物件
/// </summary>
/// <param name="MaxThread">最大Thread數量</param>
/// <param name="MinThread">最小Thread數量</param>
/// <param name="IdleTime">閒置時間，設置為0將不會自動減少Thread數量</param>
public EasyThreadPool(int MaxThread, int MinThread = 5, int IdleTime = 60)
{
if (MaxThread < MinThread)
{
throw new ArgumentException("Parameter Can not be less than MinThread", "MaxThread");
}
if (MinThread < 1)
{
throw new ArgumentException("Parameter Can not be less than 1", "MinThread");
}
if (IdleTime < 0)
{
throw new ArgumentException("Parameter Can not be negative", "IdleTime");
}
Controller = new ThreadpoolController(MaxThread, MinThread, IdleTime);
IdleThreadQueue = Controller.GetIdleThreadQueue;
LeaderThread = Controller.CreateThread(new ParameterizedThreadStart(ThreadWork));
Debug.WriteLine("Thread[{0}] is Leader Create Done", LeaderThread._Thread.ManagedThreadId);
for (int i = 1; i < MinThread; i++)
{
ThreadItem threadItem = Controller.CreateThread(new ParameterizedThreadStart(ThreadWork));
IdleThreadQueue.Enqueue(threadItem);
Debug.WriteLine("Thread[{0}] Create Done", threadItem._Thread.ManagedThreadId);
}
}
//產生Thread和一些設定
private ThreadItem NewThreadItem(ParameterizedThreadStart DoWork)
{
ThreadItem NewThreadItem = new ThreadItem()
{
_AutoResetEvent = new AutoResetEvent(false),
IsRunning = true,
_Thread = new Thread(DoWork)
{
IsBackground = true
}
};
AllThreadAutoWaitList.Add(NewThreadItem._AutoResetEvent);
CurrentThreadQuantity++;
return(NewThreadItem);
}
protected virtual void Dispose(bool disposing)
{
if (disposed)
{
return;
}
Controller.Dispose();
if (disposing)
{
LeaderThread = null;
IdleThreadQueue = null;
WorkQueue = null;
WorkQueueLock = null;
}
disposed = true;
}
//LeaderThread取工作->指派新的Leader->開始工作->回到idleQueue
private int LeaderWork(object ThisThreadItem)
{
if (Controller.IsRunning && ((ThreadItem)ThisThreadItem).IsRunning)
{
//從WorkQueue取工作
WorkItem Work;
if (WorkQueue.Count != 0)
{
lock (WorkQueueLock)
Work = WorkQueue.Dequeue();
}
else
{
return(0);
}
//從IdleThread Queue指派Thread成為新領導，沒有Thread就新增Thread或設為null
lock (Controller.ThreadVariableChangeLock)
if (IdleThreadQueue.Count != 0)
{
LeaderThread = IdleThreadQueue.Dequeue();
Debug.WriteLine("指派Thread[{0}]為新領導", LeaderThread._Thread.ManagedThreadId);
LeaderThread._AutoResetEvent.Set();
}
else
{
LeaderThread = Controller.CreateThread(new ParameterizedThreadStart(ThreadWork));
#if (LeaderThread != null)
Debug.WriteLine("Thread[{0}] is Leader Create Done", LeaderThread._Thread.ManagedThreadId);
#else
Debug.WriteLine("沒有閒置的Thread");
#endif
}
//做從WorkQueue取出的工作
//如果工作的程式碼有Thread.CurrentThread.Abort，會把被Abort的Thread重置
try
{
switch (Work.GroupName)
{
case FunctionGroupName.TestFunctionGroup:
TestWork.TestFunctionGroup(Work);
break;
case FunctionGroupName.FeaturesFunctionGroup:
TestWork.FeaturesFunctionGroup(Work);
break;
}
}
catch
{
if (Thread.CurrentThread.ThreadState == ThreadState.AbortRequested || Thread.CurrentThread.ThreadState.ToString() == "Background, AbortRequested")
{
Debug.WriteLine("Thread[{0}] 被Abort，重置Thread[{0}]", Thread.CurrentThread.ManagedThreadId);
Thread.ResetAbort();
}
}
//工作做完如果沒有LeaderThread會自動成為Leader，不然加入IdleThread Queue，
lock (Controller.ThreadVariableChangeLock)
if (LeaderThread == null)
{
Debug.WriteLine("Thread[{0}] 成為新領導", Thread.CurrentThread.ManagedThreadId);
LeaderThread = ((ThreadItem)ThisThreadItem);
}
else
{
Debug.WriteLine("Thread[{0}] 進入閒置佇列", Thread.CurrentThread.ManagedThreadId);
IdleThreadQueue.Enqueue((ThreadItem)ThisThreadItem);
}
}
return(0);
}
