public void Send()
{
UpdateWatch();
UdpClient tmpClient = new UdpClient();
NetworkInterface[] nics = NetworkInterface.GetAllNetworkInterfaces();
foreach (NetworkInterface adapter in nics)
{
if (adapter.Name == "wlan0")
{
IPv4InterfaceProperties p = adapter.GetIPProperties().GetIPv4Properties();
tmpClient.Client.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.MulticastInterface, (int)IPAddress.HostToNetworkOrder(p.Index));
//Console.WriteLine ("assigned " + adapter.Name + " as multicast address : " + (int)IPAddress.HostToNetworkOrder(p.Index));
}
}
IPAddress multicastaddress = IPAddress.Parse(MULTICAST_IP);
tmpClient.JoinMulticastGroup(multicastaddress);
IPEndPoint multicastPoint = new IPEndPoint(multicastaddress, PORT_NUMBER); // Can send on broadcast
// Yep, you can serialize a whole list !
string json = new JsonService().Serialize(watches_);
byte[] buffer = Encoding.ASCII.GetBytes(json);
tmpClient.Send(buffer, buffer.Length, multicastPoint);
tmpClient.Close();
}
private void Receive(IAsyncResult asyncResult)
{
IPEndPoint ip = new IPEndPoint(IPAddress.Any, PORT_NUMBER); // Can receive from everyone
byte[] bytes = udpClient_.EndReceive(asyncResult, ref ip);
string json = Encoding.ASCII.GetString(bytes);
// TODO: tests on received data !
var watch = JsonService.Deserialize(json);
// TODO: do stuff with received data
StartListening();
}
public void Send(WatchModel watchModel)
{
UdpClient tmpClient = new UdpClient();
IPEndPoint broadcastIp = new IPEndPoint(IPAddress.Broadcast, PORT_NUMBER); // Can send on broadcast
watchModel.Counter += 1; // Update "TimeStamp" to check for changes on remote watches !
string json = JsonService.Serialize(watchModel);
byte[] buffer = Encoding.ASCII.GetBytes(json);
tmpClient.Send(buffer, buffer.Length, broadcastIp);
tmpClient.Close();
}
public void Receive(IAsyncResult asyncResult)
{
IPEndPoint ip = new IPEndPoint(IPAddress.Any, PORT_NUMBER); // Can receive from everyone
byte[] bytes = udpClient_.EndReceive(asyncResult, ref ip);
if (ip.Address.ToString() != LocalIP)
{
Console.WriteLine("listing from : " + ip.Address.ToString());
string json = Encoding.ASCII.GetString(bytes);
// TODO: tests on received data !
var watches = new JsonService().Deserialize(json);
UpdateWatchList(watches);
}
// (Re)Start listening to Receive data again
PrepareReceive();
}
