Пример #1
0
        /// <summary>
        /// Starts an asynchronous connect operation to connect to a remote server.
        /// </summary>
        /// <param name="remoteAddress">The remote address to connect to.</param>
        /// <param name="remotePort">The remote port to use during the connection attempt.</param>
        public void ConnectAsync(string remoteAddress, int remotePort)
        {
            var remoteEndPoint = EndPointHelper.ParseEndPoint(remoteAddress, remotePort);

            _logger.Trace("Connecting to remote endpoint {0}", remoteEndPoint);

            var socket = new Socket(AddressFamily.InterNetwork,
                SocketType.Stream,
                ProtocolType.Tcp);

#if WINDOWS_PHONE
            // make sure we only use the socket when we have a non-cellular (Wi-Fi or similar) connection
            socket.SetNetworkRequirement(NetworkSelectionCharacteristics.NonCellular);
#endif

            // update operation arguments
            _socketOperation.RemoteEndPoint = remoteEndPoint;

            // connect socket
            bool completesAsynchronously = socket.ConnectAsync(_socketOperation);

            // check if the completed event will be raised.
            // if not, invoke the handler manually.
            if (!completesAsynchronously)
            {
                SocketAsyncEventArgs_Completed(_socketOperation.ConnectSocket, _socketOperation);
            }
        }