if (this.tmp == null) {
            throw new IOException("Bad file descriptor");
        }
        // ensure file is open
        try (SmbFileHandleImpl fd = ensureOpen(); SmbTreeHandleImpl th = fd.getTree()) {

            if (log.isTraceEnabled()) {
                log.trace("read: fid=" + fd + ",off=" + off + ",len=" + len);
            }

            final int type = this.file.getType();
            int r, n;

                this.size = allocInfo.getCapacity();
                this.sizeExpiration = System.currentTimeMillis() + getContext().getConfig().getAttributeCacheTimeout();
                return allocInfo.getFree();
            }
            return 0L;
        } catch (final CIFSException e) {
            throw SmbException.wrap(e);
        }
    }

    /**
     * @return

        if (type == TYPE_SHARE) {
            size = response.info.getCapacity();
            sizeExpiration = System.currentTimeMillis() + attrExpirationPeriod;
        }

        return response.info.getFree();
    }

    /**
     * Creates a directory with the path specified by this
     * <code>SmbFile</code>. For this method to be successful, the target
     * must not already exist. This method will fail when