public FingerTable(IOptions <DhtSettings> options, ISchedule scheduler)
{
_numDHT = options.Value.MaxNumberOfNodes;
_numberOfFingerTableEntries = (uint)Math.Ceiling(Math.Log(_numDHT - 1) / Math.Log(2));
FingerTableEntries = new FingerTableEntry[_numberOfFingerTableEntries];
scheduler.Enqueue(new Timer(TimeSpan.FromSeconds(options.Value.FixFingersCallInSeconds).TotalMilliseconds),
FixFingers);
}
/// <summary>
/// Create fingertable for specific node (id).
/// <param name="node"></param>
/// <param name="id"></param>
/// <returns>"void"</returns>
public void CreateFingerTable(uint id)
{
if (id > _numDHT - 1)
{
throw new ArgumentOutOfRangeException(nameof(id), $"ID index out of range: {id}, max is {_numDHT-1}.");
}
for (uint i = 0; i < _numberOfFingerTableEntries; i++)
{
FingerTableEntries[i] = new FingerTableEntry {
Start = (uint)((id + (uint)Math.Pow(2, i)) % _numDHT)
};
}
for (uint i = 0; i < _numberOfFingerTableEntries - 1; i++)
{
FingerTableEntries[i].SetInterval(FingerTableEntries[i].Start, FingerTableEntries[i + 1].Start);
}
FingerTableEntries[_numberOfFingerTableEntries - 1].SetInterval(
FingerTableEntries[_numberOfFingerTableEntries - 1].Start, FingerTableEntries[0].Start - 1);
}