Ejemplo n.º 1
0
        // This method is invoked when an asynchronous send operation completes.
        // The method issues another receive on the socket to read any additional
        // data sent from the client
        //
        // <param name="e"></param>
        private void ProcessSend(SocketAsyncEventArgs e)
        {
            if (e.SocketError == SocketError.Success)
            {
                // done echoing data back to the client
                AsyncUserToken token = (AsyncUserToken)e.UserToken;

                // read the next block of data send from the client
                bool willRaiseEvent = token.Socket.ReceiveAsync(e);

                if (!willRaiseEvent)
                {
                    ProcessReceive(e);
                }
            }
            else
            {
                CloseClientSocket(e);
            }
        }
Ejemplo n.º 2
0
        private void CloseClientSocket(SocketAsyncEventArgs e)
        {
            AsyncUserToken token = e.UserToken as AsyncUserToken;

            // close the socket associated with the client
            try
            {
                token.Socket.Shutdown(SocketShutdown.Send);
            }
            // throws if client process has already closed
            catch (Exception) { }
            token.Socket.Close();

            // decrement the counter keeping track of the total number of clients connected to the server
            Interlocked.Decrement(ref m_numConnectedSockets);
            m_maxNumberAcceptedClients.Release();
            Console.WriteLine("A client has been disconnected from the server. There are {0} clients connected to the server", m_numConnectedSockets);

            // Free the SocketAsyncEventArg so they can be reused by another client
            m_readWritePool.Push(e);
        }