private byte[] ToJson(NetBatteryState state)
{
byte[] buffer = null;
try
{
JsonSerializer serializer = new JsonSerializer();
serializer.NullValueHandling = NullValueHandling.Ignore;
var stream = new MemoryStream();
using (StreamWriter sw = new StreamWriter(stream))
using (JsonWriter writer = new JsonTextWriter(sw))
{
serializer.Serialize(writer, state);
writer.Flush();
buffer = new byte[stream.Length];
stream.Seek(0, SeekOrigin.Begin);
stream.Read(buffer, 0, buffer.Length);
}
}
catch (Exception ex)
{
_logger.LogException(Level.Warn, ex, "Не удалось преобразовать BatteryState в Json");
}
return(buffer);
}
public void SendBatteryState(NetBatteryState batteryState)
{
try
{
Socket sock = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
sock.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.Broadcast, 1);
IPEndPoint endPoint = new IPEndPoint(IPAddress.Broadcast, _settingsService.Port);
byte[] send_buffer = ToJson(batteryState);
if (send_buffer != null)
{
sock.SendTo(send_buffer, endPoint);
}
}catch (Exception ex)
{
_logger.LogException(Level.Warn, ex, "Не удалось отправить UDP пакет");
}
}
private void ReceiveCallback(IAsyncResult result)
{
try
{
var broadcastAddress = (IPEndPoint)result.AsyncState;
byte[] data = _udpClient.EndReceive(result, ref broadcastAddress);
NetBatteryState batteryState = FromJson(data);
if (batteryState != null && _settingsService.Identifier == batteryState.Identifier)
{
UpdateBatteryStatus(batteryState.Status, batteryState.Level,
batteryState.RemainingTime, batteryState.IsCharging);
}
_udpClient.BeginReceive(new AsyncCallback(ReceiveCallback), broadcastAddress);
}
catch (Exception ex)
{
_logger.LogException(Level.Warn, ex, "Не удалось перезапустить получение UDP пакетов");
}
}