/// <summary>
/// 数据接收回调函数
/// </summary>
/// <param name="ar"></param>
private void ReceiveCallback(IAsyncResult ar)
{
UdpState udpState = ar.AsyncState as UdpState;
if (ar.IsCompleted)
{
try
{
var buffer = udpState.UdpClient.EndReceive(ar, ref udpState.IpEndPoint);
udpState.Buffer = buffer;
HandleDataReceived?.Invoke(this, udpState);
}
catch (Exception ex)
{
HandleException?.Invoke(ex);
}
finally
{
_serverDone.Set();
if (IsRunning && _udpServer != null)
{
Receive();
}
}
}
}
/// <summary>
/// 异步UdpClient UDP服务器
/// </summary>
/// <param name="listenPort">监听的端口</param>
public UdpServer(int serverPort, int clientPort)
{
this._serverEP = new IPEndPoint(IPAddress.Any, serverPort);
this._clientEP = new IPEndPoint(Dns.GetHostAddresses(Dns.GetHostName())[0], clientPort);
_udpServer = new UdpClient(this._serverEP);
_udpClient = new UdpClient();
_udpSeverState = new UdpState()
{
UdpClient = _udpServer, IpEndPoint = _serverEP
};
_udpClientState = new UdpState()
{
UdpClient = _udpClient, IpEndPoint = _clientEP
};
}
private void SendCallback(IAsyncResult ar)
{
UdpState udpState = ar.AsyncState as UdpState;
if (ar.IsCompleted)
{
try
{
udpState.UdpClient.EndSend(ar);
}
catch (Exception ex)
{
HandleException?.Invoke(ex);
}
finally
{
}
}
}