* @param config
     * @param mid
     * @param asyncId
     */
    public Smb2CancelRequest ( Configuration config, long mid, long asyncId ) {
        super(config, SMB2_CANCEL);
        setMid(mid);
        setAsyncId(asyncId);
        if ( asyncId != 0 ) {
            addFlags(SMB2_FLAGS_ASYNC_COMMAND);
        }
    }


    /**
     * {@inheritDoc}
     *
     * @see jcifs.util.transport.Request#getCreditCost()

     */
    public final long getAsyncId () {
        return this.asyncId;
    }


    /**
     * @param asyncId
     *            the asyncId to set
     */
    public final void setAsyncId ( long asyncId ) {
        this.asyncId = asyncId;
    }


    /**
     * @return the credit
     */
    public final int getCredit () {
        return this.credit;
    }

                resp.setAsyncHandled(true);
                boolean first = !req.isAsync();
                req.setAsyncId(resp.getAsyncId());
                Long exp = resp.getExpiration();
                if ( exp != null ) {
                    resp.setExpiration(System.currentTimeMillis() + getResponseTimeout(request));