}
                file.send(reqx, rspx);
                fp += rspx.count;
                len -= rspx.count;
                off += rspx.count;
            } else {
                req.setParam(file.fid, fp, len - w, b, off, w);
                fp += rsp.count;
                len -= rsp.count;
                off += rsp.count;
                file.send(req, rsp);
            }

     *
     * Operations larger than this size will use RDMA read/write
     * instead of send/receive.
     *
     * @return threshold in bytes
     */
    int getRdmaReadWriteThreshold();

    /**
     * Get maximum RDMA send size
     *
     * @return max send size in bytes
     */
    int getRdmaMaxSendSize();

    /**
     * Get maximum RDMA receive size
     *

            request.flags2 &= ~SmbConstants.FLAGS2_RESOLVE_PATHS_IN_DFS;
        }
    }

    void send(final ServerMessageBlock request, final ServerMessageBlock response) throws SmbException {
        for (;;) {
            resolveDfs(request);
            try {
                tree.send(request, response);
                break;
            } catch (final DfsReferral dre) {

                    final Smb2SetInfoRequest treq = new Smb2SetInfoRequest(th.getConfig(), fh.getFileId());
                    treq.setFileInformation(new FileEndOfFileInformation(0));
                    th.send(treq, RequestParam.NO_RETRY);
                }
            }
        } catch (final CIFSException e) {
            throw SmbException.wrap(e);
        }
    }

            assertEquals("Test IO Exception", thrown.getMessage());
        }
    }

    @Nested
    @DisplayName("Send/Receive Tests")
    class SendReceiveTests {

        @Test
        @DisplayName("Should handle basic send/receive fragment methods")
        void testSendReceiveFragmentMethods() throws IOException {
            // Given: Test handle with configured return values

             */
            out.write(BUF, 0, 4 + n);
        }
    }

    /**
     * Internal method to send a request to the server.
     *
     * @param request the request to send
     * @throws IOException if an I/O error occurs
     */
    protected void doSend0(final Request request) throws IOException {
        try {
            doSend(request);

        } catch (final Exception e) {
            this.treeHandle.release();
            throw e;
        }

    }

    private FileEntry open() throws CIFSException {
        this.treeHandle.send(this.request, this.response);
        checkStatus();
        final FileEntry n = advance();
        if (n == null) {
            doClose();
        }
        return n;
    }

    /**

                        request.setRemainingBytes(Math.min(len - r, 1024 * 1024)); // Hint up to 1MB for read-ahead

                        try {
                            final Smb2ReadResponse resp = th.send(request, RequestParam.NO_RETRY);
                            n = resp.getDataLength();
                        } catch (final SmbException e) {

public enum RdmaCapability {
    /**
     * Remote direct read operations
     */
    RDMA_READ,

    /**
     * Remote direct write operations
     */
    RDMA_WRITE,

    /**
     * Traditional send/receive with RDMA
     */
    RDMA_SEND_RECEIVE,

    /**
     * Dynamic memory registration
     */
    MEMORY_REGISTRATION,

    /**
     * Fast memory region registration
     */

     * @return the negotiated capabilities
     */
    public int getNegotiatedCapabilities() {
        return this.capabilities;
    }

    /**
     * Gets the negotiated send buffer size.
     *
     * @return negotiated send buffer size
     */
    public int getNegotiatedSendBufferSize() {
        return this.snd_buf_size;
    }

    /**
     * Gets the negotiated multiplex count.
     *