ThreadPool用法

来源：互联网发布：wow客户端优化怎样用编辑：程序博客网时间：2024/05/03 14:58

使用ThreadPool实现多线程执行

class Program
    {
        static void Main(string[] args)
        {
            List<BaseWorker> list = new List<BaseWorker>();
            BaseWorker worker = null;
            for (int i = 0; i < 100; i++)
            {
                worker = new BaseWorker(i.ToString());
                list.Add(worker);
            }
            ParallelProcessor.ExecuteParallel(list.ToArray());
            Console.WriteLine("---end");
            Console.Read();
        }
    }

    interface IParallelWorker
    {
        void Run();
    }

    internal class BaseWorker : IParallelWorker
    {
        private string _flag;

        public BaseWorker(string flag)
        {
            _flag = flag;
        }
        public void Run()
        {
            Console.WriteLine(_flag+" Start");
            Console.WriteLine(_flag + " End" );
        }
    }

    internal class ParallelProcessor
    {
        public static void ExecuteParallel(IParallelWorker[] methods)
        {
            int account = methods.Length;
            if (methods.Length > 0)
            {
                // Initialize the reset events to keep track of completed threads

                ManualResetEvent reset=new ManualResetEvent(false);
                // Launch each method in it's own thread
                for (int i = 0; i < methods.Length; i++)
                {
                    //resetEvents[i] = new ManualResetEvent(false);
                    ThreadPool.QueueUserWorkItem(new WaitCallback(delegate(object index)
                    {
                        try
                        {
                            int methodIndex = (int)index;

                            // Execute the method
                            methods[methodIndex].Run();
                        }
                        catch (Exception)
                        {
                        }
                        finally
                        {
                            if (Interlocked.Decrement(ref account) == 0)
                            {

                               // Tell the calling thread that we're done
                                reset.Set();
                            }
                        }

}), i);
}

                // Wait for all threads to execute
                reset.WaitOne();
            }
        }
    }