if ( asyncId != 0 ) {
            addFlags(SMB2_FLAGS_ASYNC_COMMAND);
        }
    }


    /**
     * {@inheritDoc}
     *
     * @see jcifs.util.transport.Request#getCreditCost()
     */
    @Override
    public int getCreditCost () {
        return 1;
    }


    /**
     * {@inheritDoc}
     *
     * @see jcifs.internal.CommonServerMessageBlockRequest#isResponseAsync()
     */
    @Override

        super.setNext(next);
    }


    /**
     * {@inheritDoc}
     *
     * @see jcifs.util.transport.Request#getCreditCost()
     */
    @Override
    public int getCreditCost () {
        return 1;
    }


    /**
     * {@inheritDoc}
     *
     * @see jcifs.util.transport.Request#setRequestCredits(int)
     */
    @Override

 */
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 ();

    public void prepare ( CommonServerMessageBlockRequest next ) {

    }


    /**
     * {@inheritDoc}
     *
     * @see jcifs.util.transport.Request#getCreditCost()
     */
    @Override
    public int getCreditCost () {
        return 1;
    }


    /**
     * {@inheritDoc}
     *
     * @see jcifs.util.transport.Response#getGrantedCredits()
     */
    @Override

            CommonServerMessageBlockRequest chain = curHead;
            while ( chain != null ) {
                n++;
                int size = chain.size();
                int cost = chain.getCreditCost();
                CommonServerMessageBlockRequest next = chain.getNext();
                if ( log.isTraceEnabled() ) {
                    log.trace(