System.Net.Sockets.SocketAsyncEventArgs.Complete C# (CSharp) Method

        internal void Complete()
        {
            // Mark as not in-use.
            _operating = Free;

            InnerComplete();

            // Check for deferred Dispose().
            // The deferred Dispose is not guaranteed if Dispose is called while an operation is in progress. 
            // The _disposeCalled variable is not managed in a thread-safe manner on purpose for performance.
            if (_disposeCalled)
            {
                Dispose();
            }
        }

        public bool DisconnectAsync(SocketAsyncEventArgs e)
        {
            bool retval;

            if (s_loggingEnabled)
            {
                 Logging.Enter(Logging.Sockets, this, "DisconnectAsync", "");
            }

            if (CleanedUp)
            {
                throw new ObjectDisposedException(GetType().FullName);
            }

            if (e == null)
            {
                throw new ArgumentNullException("e");
            }

            // Prepare for the native call.
            e.StartOperationCommon(this);
            e.StartOperationDisconnect();

            // Make the native call.
            SocketError socketError = SocketError.Success;
            try
            {
                socketError = e.DoOperationDisconnect(this, _handle);
            }
            catch (Exception ex)
            {
                // Clear in-use flag on event args object. 
                e.Complete();
                throw ex;
            }

            // Handle completion when completion port is not posted.
            if (socketError != SocketError.Success && socketError != SocketError.IOPending)
            {
                e.FinishOperationSyncFailure(socketError, 0, SocketFlags.None);
                retval = false;
            }
            else
            {
                retval = true;
            }

            if (s_loggingEnabled)
            {
                 Logging.Exit(Logging.Sockets, this, "DisconnectAsync", retval);
            }

            return retval;
        }