예제 #1
0
        private void OnRead(UvStreamHandle handle, int status)
        {
            if (status == 0)
            {
                // A zero status does not indicate an error or connection end. It indicates
                // there is no data to be read right now.
                // See the note at http://docs.libuv.org/en/v1.x/stream.html#c.uv_read_cb.
                // We need to clean up whatever was allocated by OnAlloc.
                SocketInput.IncomingDeferred();
                return;
            }

            var normalRead = status > 0;
            var normalDone = status == Constants.EOF;
            var errorDone  = !(normalDone || normalRead);
            var readCount  = normalRead ? status : 0;

            if (normalRead)
            {
                Log.ConnectionRead(ConnectionId, readCount);
            }
            else
            {
                _socket.ReadStop();

                if (normalDone)
                {
                    Log.ConnectionReadFin(ConnectionId);
                }
            }

            IOException error = null;

            if (errorDone)
            {
                Exception uvError;
                handle.Libuv.Check(status, out uvError);

                // Log connection resets at a lower (Debug) level.
                if (status == Constants.ECONNRESET)
                {
                    Log.ConnectionReset(ConnectionId);
                }
                else
                {
                    Log.ConnectionError(ConnectionId, uvError);
                }

                error = new IOException(uvError.Message, uvError);
            }

            SocketInput.IncomingComplete(readCount, error);

            if (errorDone)
            {
                Abort(error);
            }
        }