protected abstract void makeKey( Request request ) throws IOException;
    protected abstract Request peekKey() throws IOException;
    protected abstract void doSend( Request request ) throws IOException;
    protected abstract void doRecv( Response response ) throws IOException;
    protected abstract void doSkip() throws IOException;

    public synchronized void sendrecv( Request request,
                    Response response,

    /**
     * @param request
     * @param response
     * @param params
     * @param timeout
     * @param firstKey
     * @return
     * @throws IOException
     */
    private <T extends Response> long prepareRequests ( Request request, T response, Set<RequestParam> params, long timeout ) throws IOException {
        Response curResp = response;
        Request curReq = request;
        long firstKey = 0;

     */
    public static final int NTLMSSP_REQUEST_INIT_RESPONSE = 0x00100000;

    /**
     * ?? According to spec this is NTLMSSP_NEGOTIATE_IDENTIFY
     * 
     * If set, requests an identify level token
     */
    public static final int NTLMSSP_REQUEST_ACCEPT_RESPONSE = 0x00200000;

    /**
     * Requests the usage of the LMOWF
     */

 * Unify authentication subsystem, NTLMSSP/Kerberos support
 * Large ReadX/WriteX support
 * Streaming list operations
 * NtTransNotifyChange support
 * Google patches: various bugfixes, lastAccess support, retrying requests
 * A proper test suite
 * Various fixes

## Others

### This jcifs or jcifs-ng

jcifs-ng will be a proper choice for many users. 
There are a lot of SMB devices in the world.

     * 
     * @param req
     *            The servlet request
     * @param resp
     *            The servlet response
     * @param skipAuthentication
     *            If true the negotiation is only done if it is
     *            initiated by the client (MSIE post requests after successful NTLM SSP
     *            authentication). If false and the user has not been authenticated yet

                int before = t.getInflightRequests();
                if ( before > 0 ) {
                    log.warn("Have existing inflight requests");
                }
                f.exists();
                assertEquals(before, t.getInflightRequests());
            }
        }
    }


    @Test
    // BUG #14

    /**
     * @return whether this is a SMB2 connection
     * @throws SmbException
     */
    boolean isSMB2 () throws SmbException;


    /**
     * @return number of inflight requests
     */
    int getInflightRequests ();

    }

    /**
     * Negotiate password hashes with MSIE clients using NTLM SSP
     * @param req The servlet request
     * @param resp The servlet response
     * @param skipAuthentication If true the negotiation is only done if it is
     * initiated by the client (MSIE post requests after successful NTLM SSP
     * authentication). If false and the user has not been authenticated yet

package jcifs.util.transport;


/**
 * 
 *
 */
public interface Request extends Message {

    /**
     * @return number of credits this request requires
     */
    int getCreditCost ();


    /**
     * @param credits
     */
    void setRequestCredits ( int credits );


    /**
     * @return whether this is a cancel request
     */
    boolean isCancel ();


    /**

 */
package jcifs.internal;


import jcifs.CIFSContext;


/**
 * @author mbechler
 * @param <T>
 *            response type
 *
 */
public interface Request <T extends CommonServerMessageBlockResponse> extends CommonServerMessageBlockRequest {

    /**
     * 
     * @param tc
     * @return the initialized response
     * @internal
     */