private async void Listener_MessageReceived(DatagramSocket sender, DatagramSocketMessageReceivedEventArgs args)
{
byte[] message = new byte[150];
Device newDevice = new Device();
char c;
using (DataReader reader = args.GetDataReader())
reader.ReadBytes(message);
for (int i = 0; i < 32; i += 2)
{
c = Convert.ToChar(message[i]);
if (c == 0)
break;
newDevice.BoardName += c;
}
for (int i = 66; i < 96; i += 2)
{
c = Convert.ToChar(message[i]);
if (c == 0)
break;
newDevice.IpAddress += c;
}
newDevice.LastPing = DateTime.Now;
for (int i = 100; i < 146; i += 2)
{
c = Convert.ToChar(message[i]);
if (c == 0)
break;
newDevice.MacAddress += c;
}
int index = -1;
for (int i = 0; i < App.Devices.Count; i++)
{
Device knownDevice = App.Devices[i];
if (knownDevice.MacAddress == newDevice.MacAddress)
{
index = i;
break;
}
}
await Windows.ApplicationModel.Core.CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(
CoreDispatcherPriority.Normal, () =>
{
if (index != -1)
{
App.Devices[index].BoardName = newDevice.BoardName;
App.Devices[index].IpAddress = newDevice.IpAddress;
App.Devices[index].LastPing = newDevice.LastPing;
App.Devices[index].Online = new SolidColorBrush(Colors.Green);
}
else
{
newDevice.Index = App.Devices.Count();
newDevice.Online = new SolidColorBrush(Colors.Green);
App.Devices.Add(newDevice);
}
});
}
private void MessageHandler(object sender, DoWorkEventArgs e)
{
byte[] message = e.Argument as byte[];
Device newDevice = new Device();
char c;
for (int i = 0; i < 32; i += 2)
{
c = Convert.ToChar(message[i]);
if (c == 0)
break;
newDevice.BoardName += c;
}
for (int i = 66; i < 96; i += 2)
{
c = Convert.ToChar(message[i]);
if (c == 0)
break;
newDevice.IpAddress += c;
}
newDevice.LastPing = DateTime.Now;
for (int i = 100; i < 146; i += 2)
{
c = Convert.ToChar(message[i]);
if (c == 0)
break;
newDevice.MacAddress += c;
}
int index = -1;
for (int i = 0; i < App.Devices.Count; i++)
{
Device knownDevice = App.Devices[i];
if (knownDevice.MacAddress == newDevice.MacAddress)
{
index = i;
break;
}
}
if (null != App.Current) // avoid exception during closing
{
App.Current.Dispatcher.Invoke(DispatcherPriority.Normal, (System.Windows.Forms.MethodInvoker)delegate ()
{
if (index != -1)
{
App.Devices[index].BoardName = newDevice.BoardName;
App.Devices[index].IpAddress = newDevice.IpAddress;
App.Devices[index].LastPing = newDevice.LastPing;
App.Devices[index].Online = new SolidColorBrush(Colors.Green);
}
else
{
newDevice.Index = App.Devices.Count();
newDevice.Online = new SolidColorBrush(Colors.Green);
App.Devices.Add(newDevice);
}
});
}
}