private void ReceiveBroadcast(IAsyncResult data)
{
if (_socketBC == null)
{
return;
}
try
{
State so = (State)data.AsyncState;
int bytes = _socketBC.EndReceiveFrom(data, ref epFromBC);
Console.WriteLine("RECEIVED BC: " + bytes.ToString());
string name = Encoding.UTF8.GetString(so.buffer.ToList().GetRange(0, bytes).ToArray());
//Console.WriteLine(name);
// Console.WriteLine(bytes);
bool hasChanged = false;
var remoteIP = ((IPEndPoint)epFromBC).Address;
if (availableMotes.ContainsKey(remoteIP))
{
if (availableMotes[remoteIP].name != name)
{
hasChanged = true;
availableMotes[remoteIP].name = name;
}
availableMotes[remoteIP].latestBC = DateTime.Now;
availableMotes[remoteIP].latestData = DateTime.MinValue;
}
else
{
hasChanged = true;
availableMotes[remoteIP] = new UdpmoteInfo(remoteIP, name, FreeNumMote(availableMotes, connectedMotes), false, DateTime.Now, DateTime.MinValue);
}
if (hasChanged)
{
AvailaibleUdpmotesChanged?.Invoke(availableMotes);
}
byte[] buffer = Encoding.UTF8.GetBytes("BC#" + System.Environment.MachineName + "#" + availableMotes[remoteIP].num.ToString());
_socketBC.SendTo(buffer, new IPEndPoint(remoteIP, portAnswerBC));
Console.WriteLine("SENDED ANSWER BC: " + buffer.Length.ToString());
_socketBC.BeginReceiveFrom(so.buffer, 0, bufSize, SocketFlags.None, ref epFromBC, ReceiveBroadcast, so);
}
catch (ObjectDisposedException)
{
}
}
private void TimerCleanning_Tick(object sender, EventArgs e)
{
var toDelete = new List <IPAddress>();
foreach (var address in availableMotes.Keys)
{
var ts = DateTime.Now - availableMotes[address].latestBC;
if (ts.TotalSeconds > 1.0)
{
toDelete.Add(address);
}
}
foreach (var address in toDelete)
{
Console.WriteLine("REMOVED FROM BC LIST: " + address.ToString());
availableMotes.Remove(address);
}
if (toDelete.Count > 0)
{
AvailaibleUdpmotesChanged?.Invoke(availableMotes);
}
}
