Socket send troubles :S

gistfile1.cs

        public void Send(Message message)
        {
            if (message == null) throw new ArgumentNullException("message");
            if (!IsConnected)
                throw new Exception("Socket not connected");
            var rawMessage = message.Encode();
            if (rawMessage.Length > uint.MaxValue)
                throw new Exception("Message too long");
            var fullMessage = new byte[rawMessage.Length + 4];
            var len = BitConverter.GetBytes((uint)rawMessage.Length);
            Buffer.BlockCopy(len, 0, fullMessage, 0, 4);
            Buffer.BlockCopy(rawMessage, 0, fullMessage, 4, rawMessage.Length);

            //  wait to be signalled, _mre is signalled by default
            _mre.WaitOne();
            _mre.Reset();

            var saea = new SocketAsyncEventArgs();
            saea.SetBuffer(fullMessage, 0, fullMessage.Length);
            saea.Completed += SendComplete;
            if (!_socket.SendAsync(saea))
                SendComplete(_socket, saea);
        }

        private void SendComplete(object sender, SocketAsyncEventArgs socketAsyncEventArgs)
        {
            if (socketAsyncEventArgs.SocketError != SocketError.Success)
                Disconnect();
            socketAsyncEventArgs.Dispose();
            //  signal that socket is ready to send again
            _mre.Set();
        }