//データを受信した時
private void ReceiveCallback(IAsyncResult ar)
{
System.Net.Sockets.UdpClient udp =
(System.Net.Sockets.UdpClient)ar.AsyncState;
//非同期受信を終了する
System.Net.IPEndPoint remoteEP = null;
byte[] rcvBytes;
try
{
rcvBytes = udp.EndReceive(ar, ref remoteEP);
}
catch (System.Net.Sockets.SocketException ex)
{
Console.WriteLine("Error({0}/{1})",
ex.Message, ex.ErrorCode);
return;
}
catch (ObjectDisposedException ex)
{
//すでに閉じている時は終了
Console.WriteLine("Socket closed");
return;
}
//データを文字列に変換する
string rcvMsg = System.Text.Encoding.UTF8.GetString(rcvBytes);
var e = new UDP_ReceiveData(rcvMsg, remoteEP.Address.ToString());
Console.WriteLine("datarecived:{0}", rcvMsg);
packet_receive(this, e);
//再びデータ受信を開始する
udp.BeginReceive(ReceiveCallback, udp);
}
public async Task ListenMessage()
{
//var remote = new IPEndPoint(IPAddress.Any, port);
//client.Connect(remote);
//client.BeginReceive(ReceiveCallback, client);
//return Task.Run(() =>
//{
while (true)
{
Console.WriteLine("start_listen:port:{0}", port);
var remote = new IPEndPoint(IPAddress.Any, port);
var receive = await client.ReceiveAsync();
//var receive = client.Receive(ref remote);
//var str = Encoding.UTF8.GetString(receive);
var str = Encoding.UTF8.GetString(receive.Buffer);
var e = new UDP_ReceiveData(str, receive.RemoteEndPoint.Address.ToString());
//var e = new UDP_ReceiveData(str, remote.Address.ToString());
packet_receive(this, e);
}
// });
}
