- <para>On failure, this call returns a negative errno-style error
- code. If the system was booted up with systemd as init system,
- this call returns a positive return value, zero otherwise.</para>
- </refsect1>
-
- <refsect1>
- <title>Notes</title>
-
- <xi:include href="libelogind-pkgconfig.xml" xpointer="pkgconfig-text"/>
-
- <para>Internally, this function checks whether the directory
- <filename>/run/systemd/system/</filename> exists. A simple check
- like this can also be implemented trivially in shell or any other
- language.</para>