ln.dhcp/IPPool.cs

using System;
using ln.types.net;
using System.Collections.Generic;
using ln.types.odb.attributes;
namespace ln.dhcp
{
    public class IPPool
    {
        [DocumentID]
        public String Name { get; set; }

        public IPv4 FirstIP { get; set; }
        public IPv4 LastIP { get; set; }

        IPv4 nextIP;
        public IPv4 NextIP
        {
            get => nextIP;
            set => nextIP = value;
        }

        public TimeSpan DefaultLeaseTime { get; set; }

        public IPv4 GetNextIP()
        {
            lock (this)
            {
                IPv4 next = nextIP++;
                if (nextIP > LastIP)
                    nextIP = FirstIP;
                return next;
            }
        }
        private IPPool()
        {
            DefaultLeaseTime = TimeSpan.FromHours(1);
        }

        public IPPool(String name, IPv4 first, IPv4 last)
            : this()
        {
            Name = name;
            FirstIP = first;
            LastIP = last;

            NextIP = FirstIP;
        }
    }
}