using System;
using System.Runtime.InteropServices;

namespace DataService
{
 [StructLayout(LayoutKind.Sequential)]
 public struct DeviceAddress : IComparable<DeviceAddress>
 {
 public int Area;
 public int Start;
 public ushort DBNumber;
 public ushort DataSize;
 public ushort CacheIndex;
 public byte Bit;
 public DataType VarType;
 public ByteOrder ByteOrder;

 public DeviceAddress(int area, ushort dbnumber, ushort cIndex, int start, ushort size, byte bit, DataType type, ByteOrder order = ByteOrder.None)
 {
 Area = area;
 DBNumber = dbnumber;
 CacheIndex = cIndex;
 Start = start;
 DataSize = size;
 Bit = bit;
 VarType = type;
 ByteOrder = order;
 }

 public static readonly DeviceAddress Empty = new DeviceAddress(0, 0, 0, 0, 0, 0, DataType.NONE);

 public int CompareTo(DeviceAddress other)
 {
 return this.Area > other.Area ? 1 :
 this.Area < other.Area ? -1 :
 this.DBNumber > other.DBNumber ? 1 :
 this.DBNumber < other.DBNumber ? -1 :
 this.Start > other.Start ? 1 :
 this.Start < other.Start ? -1 :
 this.Bit > other.Bit ? 1 :
 this.Bit < other.Bit ? -1 : 0;
 }
 }

}