+ specific files is inherently racy.</para>
+
+ <para><function>sd_journal_open_container()</function>
+ is similar to <function>sd_journal_open()</function>
+ but opens the journal files of a running
+ OS container. The specified machine name refers to a
+ container that is registered with
+ <citerefentry><refentrytitle>systemd-machined</refentrytitle><manvolnum>8</manvolnum></citerefentry>.</para>
+
+ <para><varname>sd_journal</varname> objects cannot be
+ used in the child after a fork. Functions which take a
+ journal object as an argument
+ (<function>sd_journal_next()</function> and others)
+ will return <constant>-ECHILD</constant> after a fork.
+ </para>