private void SendHostInfoWork()
{
try
{
ulong sequence = 0;
DateTime nextSendDateTime = DateTime.Now;
MndpMessageEx msg = new MndpMessageEx
{
BoardName = this._hostInfo.BoardName,
Identity = this._hostInfo.Identity,
Platform = this._hostInfo.Platform,
SoftwareId = this._hostInfo.SoftwareId,
Version = this._hostInfo.Version,
Ttl = 0,
Type = 0,
Unpack = 0,
};
while (this._sendHostInfoIsRunning)
{
Thread.Sleep(100);
if ((nextSendDateTime < DateTime.Now) || this._sendHostInfoNow)
{
nextSendDateTime = DateTime.Now.AddSeconds(HOST_INFO_SEND_INTERVAL);
this._sendHostInfoNow = false;
var interfaces = this._hostInfo.InterfaceInfos;
msg.Sequence = (ushort)(sequence++);
msg.Uptime = this._hostInfo.UpTime;
foreach (var i in interfaces)
{
msg.BroadcastAddress = i.BroadcastAddress;
msg.InterfaceName = i.InterfaceName;
msg.MacAddress = i.MacAddress;
msg.UnicastAddress = i.UnicastAddress;
msg.UnicastIPv6Address = i.UnicastIPv6Address;
this.Send((MndpMessageEx)msg.Clone());
}
}
}
}
catch (Exception ex)
{
Log.Exception(nameof(MndpSender), nameof(this.SendHostInfoWork), ex);
}
}
private void _receive(IAsyncResult ar)
{
try
{
if ((ar != null) && (this._udpClient != null))
{
IPEndPoint ip = new IPEndPoint(IP_ADDRESS, UDP_PORT);
byte[] bytes = this._udpClient.EndReceive(ar, ref ip);
var msg = new MndpMessageEx
{
UnicastAddress = ip.Address.ToString(),
ReceiveDateTime = DateTime.Now
};
if (msg.Read(bytes))
{
this._dictMessages[msg.MacAddress] = msg;
}
}
}
catch (Exception ex)
{
Log.Exception(nameof(MndpListener), nameof(this._receive), ex);
}
try
{
if (this._udpClient != null)
{
this._udpClient.BeginReceive(this._receive, new object());
}
}
catch (Exception ex)
{
Log.Exception(nameof(MndpListener), nameof(this._receive), ex);
}
}
/// <summary>
/// Send message.
/// </summary>
/// <param name="msg">Mndp message.</param>
/// <returns>Is success?.</returns>
public bool Send(MndpMessageEx msg)
{
try
{
EndPoint ep;
Socket s;
var broadcastAddress = IP_ADDRESS;
if (msg.BroadcastAddress != null)
{
broadcastAddress = IPAddress.Parse(msg.BroadcastAddress);
}
using (s = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp))
{
s.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
s.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.NoDelay, 1);
s.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.Broadcast, 1);
s.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.DontRoute, true);
ep = new IPEndPoint(broadcastAddress, UDP_PORT);
var data = msg.Write();
s.SendTo(data, ep);
return(true);
}
}
catch (Exception ex)
{
Log.Exception(nameof(MndpSender), nameof(this.Send), ex);
}
return(false);
}
