}

        if ( this.tmp == null ) {
            throw new IOException("Bad file descriptor");
        }

        try ( SmbFileHandleImpl fh = ensureOpen();
              SmbTreeHandleImpl th = fh.getTree() ) {
            if ( log.isDebugEnabled() ) {
                log.debug("write: fid=" + fh + ",off=" + off + ",len=" + len + ",fp=" +  this.fp);
            }

            int w;
            do {

        if ( len <= 0 ) {
            return 0;
        }
        long start = this.fp;

        try ( SmbFileHandleImpl fh = ensureOpen();
              SmbTreeHandleImpl th = fh.getTree() ) {

            int r, n;
            SmbComReadAndXResponse response = new SmbComReadAndXResponse(th.getConfig(), b, off);
            do {
                r = len > this.readSize ? this.readSize : len;

        if ( !this.handle.isValid() ) {
            throw new SmbException("Watch was broken by tree disconnect");
        }
        try ( SmbTreeHandleImpl th = this.handle.getTree() ) {

            CommonServerMessageBlockRequest req;
            NotifyResponse resp = null;
            if ( th.isSMB2() ) {