//public event EventHandler1 DidResponedChanged;
static public void Send(String host, int port, String msg, long timeoutMS)
{
IPEndPoint remoteIP = new IPEndPoint(IPAddress.Parse("192.168.0.255"), port);
Socket Server = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
Server.EnableBroadcast = true;
Server.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.Broadcast, true);
Server.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 100); //設定的時間內解除阻塞模式
byte[] pushdata = new byte[1024]; //定義要送出的封包大小
Thread t = new Thread(() => {
pushdata = Encoding.ASCII.GetBytes(msg); //把要送出的資料轉成byte型態
Server.SendTo(pushdata, remoteIP); //送出的資料跟目的
IPEndPoint IPEnd = new IPEndPoint(IPAddress.Any, 8888);
EndPoint IP = (EndPoint)IPEnd;
long old = NSTime.CurrentMillisecond();
while (old + timeoutMS > NSTime.CurrentMillisecond())
{
try {
byte[] getdata = new byte[1024]; //要接收的封包大小
int recv = Server.ReceiveFrom(getdata, ref IP);
string input = Encoding.ASCII.GetString(getdata, 0, recv); //把接收的byte資料轉回string型態
Console.WriteLine("received: {0} from: {1}", input, IP.ToString());
if (DidResponedChanged != null)
{
if (form == null)
{
DidResponedChanged(IP.ToString(), input);
}
else
{
form.Invoke(new Action(() => DidResponedChanged(IP.ToString(), input)));
}
}
}
catch (SocketException e)
{
}
Thread.Sleep(200); //每秒發送一次
}
Server.Close();
Console.WriteLine("Send did terminal");
});
t.IsBackground = true;
t.Start();
}
static public void Recv(int port, String msg, long timeoutMS)
{
IPEndPoint IPEnd = new IPEndPoint(IPAddress.Any, port);
Socket Client = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
Client.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 100); //設定的時間內解除阻塞模式
Client.Bind(IPEnd);
EndPoint IP = (EndPoint)IPEnd; //我真的不知道為何一定要這行才能成功= =，誰能解釋一下
Thread t = new Thread(() => {
long old = NSTime.CurrentMillisecond();
while (old + timeoutMS > NSTime.CurrentMillisecond())
{
try
{
byte[] getdata = new byte[1024]; //要接收的封包大小
int recv = Client.ReceiveFrom(getdata, ref IP); //把接收的封包放進getdata且傳回大小存入recv
string input = Encoding.ASCII.GetString(getdata, 0, recv); //把接收的byte資料轉回string型態
Console.WriteLine("received: {0} from: {1}", input, IP.ToString());
Client.SendTo(Encoding.ASCII.GetBytes(msg), recv, SocketFlags.None, IP); //將原資料送回去
if (form == null)
{
DidResponedChanged(IP.ToString(), input);
}
else
{
form.Invoke(new Action(() => DidResponedChanged(IP.ToString(), input)));
}
}
catch (SocketException e)
{
}
}
Client.Close();
Console.WriteLine("Recv did terminal");
});
t.IsBackground = true;
t.Start();
}