private void UpdateNeighborsStatus(object state)
{
Ping();
lock (this)
{
var now = DateTime.Now;
var pairs = _neighbors.ToArray();
foreach (var pair in pairs)
{
if (now - pair.Value.LastOnline > Constants.ShortestOnlineTime)
{
_neighbors.Remove(pair.Key);
}
}
if (_neighbors.Count != pairs.Length)
{
OnNeighborsChanged?.Invoke();
}
}
}
private void ScanNeighbors()
{
while (true)
{
var from = new IPEndPoint(IPAddress.Any, 0);
var buffer = _client.Receive(ref from);
var header = Encoding.UTF8.GetString(buffer, 0, buffer.Length);
Debugger.Log("Received broadcast header: " + header);
var pingInfo = PingInfo.Parse(header);
if (pingInfo == null || pingInfo.Id == _id)
{
continue;
}
var address = from.Address.ToString();
var neighbor = new Neighbor
{
Name = pingInfo.Name,
LastOnline = DateTime.Now,
Address = address
};
lock (this)
{
var oldSize = _neighbors.Count;
_neighbors[address] = neighbor;
if (oldSize != _neighbors.Count)
{
OnNeighborsChanged?.Invoke();
}
}
}
}
