Elight.Utility/Threads/TaskSchedulerEx.cs

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using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading;
using System.Threading.Tasks;

namespace Elight.Utility.Threads
{
    /// <summary>
    /// TaskScheduler扩展
    /// 每个实例都是独立线程池
    /// </summary>
    public class TaskSchedulerEx : TaskScheduler, IDisposable
    {
        #region 外部方法
        [DllImport("kernel32.dll", EntryPoint = "SetProcessWorkingSetSize")]
        public static extern int SetProcessWorkingSetSize(IntPtr process, int minSize, int maxSize);
        #endregion

        #region 变量属性事件
        private ConcurrentQueue<Task> _tasks = new ConcurrentQueue<Task>();
        private int _coreThreadCount = 0;
        private int _maxThreadCount = 0;
        private int _auxiliaryThreadTimeOut = 20000; //辅助线程释放时间
        private int _activeThreadCount = 0;
        private System.Timers.Timer _timer;
        private object _lockCreateTimer = new object();
        private bool _run = true;
        private Semaphore _sem = null;
        private int _semMaxCount = int.MaxValue; //可以同时授予的信号量的最大请求数
        private int _semCount = 0; //可用信号量请求数
        private int _runCount = 0; //正在执行的和等待执行的任务数量

        /// <summary>
        /// 活跃线程数
        /// </summary>
        public int ActiveThreadCount
        {
            get { return _activeThreadCount; }
        }

        /// <summary>
        /// 核心线程数
        /// </summary>
        public int CoreThreadCount
        {
            get { return _coreThreadCount; }
        }

        /// <summary>
        /// 最大线程数
        /// </summary>
        public int MaxThreadCount
        {
            get { return _maxThreadCount; }
        }
        #endregion