private void BeginReceiveMessage()
{
var buffer = new byte[UdpSocket.BufferSize];
var any = UdpSocket.Any();
try
{
lock (_disposeLock)
{
if (_disposed)
{
return;
}
_socket.BeginReceiveFrom(buffer, 0, buffer.Length, SocketFlags.None, ref any, ReceiveMessageCallback, buffer);
}
}
catch (SocketException se)
{
MessagerException?.Invoke(this, new ExceptionEventArgs(se));
BeginReceiveMessage();
}
catch (ObjectDisposedException)
{
}
}
public void SendMessage(IPEndPoint target, MessageType type, string value = "")
{
var message = MessageFor(type, value);
var buffer = SerializeMessage(message);
try
{
lock (_disposeLock)
{
if (_disposed)
{
return;
}
if (buffer.Length >= UdpSocket.BufferSize)
{
// switch to TCP mode to handle big messages
var port = TcpListener.Queue(buffer);
if (port > 0)
{
// success, replace original message with "switch to tcp" marker + port information + buffer length
message = MessageFor(MessageType.Tcp, string.Concat(port, ':', buffer.Length));
buffer = SerializeMessage(message);
}
}
_socket.BeginSendTo(buffer, 0, Math.Min(buffer.Length, UdpSocket.BufferSize), SocketFlags.None, target, SendMessageCallback, null);
}
}
catch (SocketException se)
{
MessagerException?.Invoke(this, new ExceptionEventArgs(se));
}
}
private void SendMessageCallback(IAsyncResult result)
{
try
{
lock (_disposeLock)
{
if (_disposed)
{
return;
}
_socket.EndSendTo(result);
}
}
catch (SocketException se)
{
MessagerException?.Invoke(this, new ExceptionEventArgs(se));
}
catch (ObjectDisposedException)
{
}
}
public void SendMessage(IPEndPoint target, MessageType type, string value = "")
{
var message = MessageFor(type, value);
var buffer = SerializeMessage(message);
try
{
lock (_disposeLock)
{
if (_disposed)
{
return;
}
_socket.BeginSendTo(buffer, 0, Math.Min(buffer.Length, UdpSocket.BufferSize), SocketFlags.None, target, SendMessageCallback, null);
}
}
catch (SocketException se)
{
MessagerException?.Invoke(this, new ExceptionEventArgs(se));
}
}
private void RaiseMessagerException(Exception e)
{
MessagerException?.Invoke(this, new ExceptionEventArgs(e));
}