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为什么这不起作用？有什么办法可以在非WPF线程上使用Dispatcher;新的多线程
我在做什么： 我需要一种方法来运行特定线程中的特定方法，直到程序结束。
我的其他可能的选择： 据我了解可能的方法是执行一个队列。我可以推入我想要在特定线程中运行的方法。在特定的线程中，我将旋转并休眠/ monitor.pulse，以查看是否有委托等待在队列中运行。
我的目标： 是为了避免所有的努力去创建委托队列，保持锁等等。看起来，现成的解决方案存在于称为分派器的WPF世界中。 WPF控件大部分是从DispatcherObject继承的，不知何故，整个事情都起作用。我需要做些什么来完成这项工作？
using System;
using System.Threading;
using System.Windows.Threading;
namespace ThreadingTrials
{
class Program
{
[STAThread]
static void Main(string[] args)
{
Thread.CurrentThread.Name = "mainThread";
Engine engine = new Engine();
Console.WriteLine("initializing SpecialEngine from {0}", Thread.CurrentThread.Name);
engine.initialize();
engine.doWork();
}
}
class Engine:DispatcherObject
{
private EventWaitHandle InitializationComplete;
private EventWaitHandle newWorkComplete;
//private Dispatcher dispatcher;
public Engine()
{
}
public void initialize()
{
InitializationComplete = new EventWaitHandle(false, EventResetMode.ManualReset);
Thread thread = new Thread(new ParameterizedThreadStart((hwnd)=>
{
InitializeSpecialEngineObject();
while (true) ;
}));
thread.Name = "Special Engine Thread";
thread.SetApartmentState(ApartmentState.STA);
thread.Priority = ThreadPriority.Normal;
thread.Start();
Console.WriteLine("waiting for initialize at {0}", Thread.CurrentThread.Name);
InitializationComplete.WaitOne();
}
private void InitializeSpecialEngineObject()
{
Console.WriteLine("doing initialization at {0}", Thread.CurrentThread.Name);
Thread.Sleep(500);
//dispatcher = Dispatcher.CurrentDispatcher;
InitializationComplete.Set();
}
internal void doWork()
{
newWorkComplete = new EventWaitHandle(false, EventResetMode.AutoReset);
//Dispatcher.Thread.Suspend();
Dispatcher.Invoke((SendOrPostCallback)delegate
{
Console.WriteLine("dispatched to {0}", Thread.CurrentThread.Name);
Thread.Sleep(500);
newWorkComplete.Set();
},DispatcherPriority.Background, null);
Dispatcher.Thread.Resume();
Console.WriteLine("waiting for new work to complete at {0}", Thread.CurrentThread.Name);
newWorkComplete.WaitOne();
}
private void doingWork()
{
Console.WriteLine("Doing work in {0}", Thread.CurrentThread.Name);
Thread.Sleep(500);
}
}
}
感谢您的意见。 够公平的。实际上，创建一个简单的工作线程并没有什么工作，它可以在void（）委托的队列中等待一个表示新任务的事件，并在它们变为可用时运行它们。我从网上复制了大部分代码...抱歉失去了参考。那天我已经完成了，应该早点编辑这篇文章。
using System;
using System.Threading;
using System.Collections.Generic;
class ProducerConsumerQueue : IDisposable
{
EventWaitHandle _wh = new AutoResetEvent(false);
Thread _worker;
readonly object _locker = new object();
Queue<Action> _tasks = new Queue<Action>();
public delegate void Action();
public ProducerConsumerQueue()
{
_worker = new Thread(Work);
_worker.Start();
}
public void EnqueueTask(Action work)
{
lock (_locker) _tasks.Enqueue(work);
_wh.Set();
}
public void Dispose()
{
EnqueueTask(null); // Signal the consumer to exit.
_worker.Join(); // Wait for the consumer's thread to finish.
_wh.Close(); // Release any OS resources.
}
void Work()
{
while (true)
{
Action task = null;
lock (_locker)
if (_tasks.Count > 0)
{
task = _tasks.Dequeue();
if (task == null) return;
}
if (task != null)
{
task.Invoke();
}
else
_wh.WaitOne(); // No more tasks - wait for a signal
}
}
}
class Program
{
static void Main()
{
using (ProducerConsumerQueue q = new ProducerConsumerQueue())
{
q.EnqueueTask(delegate
{
Console.WriteLine("Performing task: Hello");
Thread.Sleep(1000); // simulate work...
});
for (int i = 0; i < 10; i++) q.EnqueueTask(delegate
{
Console.WriteLine("Performing task: "+ i);
Thread.Sleep(1000); // simulate work...
});
q.EnqueueTask(delegate
{
Console.WriteLine("Performing task: Goodbye!");
Thread.Sleep(1000); // simulate work...
});
}
// Exiting the using statement calls q's Dispose method, which
// enqueues a null task and waits until the consumer finishes.
}
}