/*-------------------------------------------------------------------------
 * 功能描述：IdlingCommands
 * 作者：xulisong
 * 创建时间： 2019/1/3 17:22:01
 * 版本号：v1.0
 *  -------------------------------------------------------------------------*/

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Autodesk.Revit.UI;

namespace FWindSoft.Revit
{
    /// <summary>
    /// 空闲命令消费者队列
    /// </summary>
    public class IdlingCommands
    {
        internal IdlingCommands()
        {
            Commands = new Queue<IdlingCommand>();
        }
        #region 生产消费队列维护
        /// <summary>
        /// 命令队列
        /// </summary>
        private readonly Queue<IdlingCommand> Commands;

        /// <summary>
        /// 在队列中加入command
        /// </summary>
        /// <param name="command"></param>
        public void Enqueue(IdlingCommand command)
        {
            lock (Commands)
            {
                Commands.Enqueue(command);
            }
        }
        /// <summary>
        /// 获取队列中的command
        /// </summary>
        /// <returns></returns>
        public IdlingCommand Dequeue()
        {
            IdlingCommand command = null;
            lock (Commands)
            {
                if (HasCommand)
                {
                    command = Commands.Dequeue(); ;
                }
            }

            return command;
        }
        public bool HasCommand
        {
            get
            {
                return Commands.Count > 0;
            }
        }
        #endregion
    }
   
}