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

namespace KMBIM
{

    /// <summary>
    ///   대화상자에서 가능한 요청
    /// </summary>
    /// 
    public enum KDCSRequestId : int
    {
        /// <summary>
        /// None
        /// </summary>
        None = 0,
        /// <summary>
        /// "Avoidance" request
        /// </summary>
        Avoidance = 1
      
    }
    public class KDCSRequest
    {
        // Storing the value as a plain Int makes using the interlocking mechanism simpler
        private Resolver m_resolver = null;

        /// <summary>
        ///   Take - The Idling handler calls this to obtain the latest request. 
        /// </summary>
        /// <remarks>
        ///   This is not a getter! It takes the request and replaces it
        ///   with 'None' to indicate that the request has been "passed on".
        /// </remarks>
        /// 
        public Resolver Take()
        {
            return (Resolver)Interlocked.Exchange(ref m_resolver, (Resolver)null);
        }


        /// <summary>
        ///   Make - The Dialog calls this when the user presses a command button there. 
        /// </summary>
        /// <remarks>
        ///   It replaces any older request previously made.
        /// </remarks>
        /// 
        public void Make(Resolver resolver)
        {
            Interlocked.Exchange(ref m_resolver, (Resolver)resolver);
        }
    }
}