Copyright 2010 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
+ Lesser General Public License for more details.
- You should have received a copy of the GNU General Public License
+ You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
-->
-<refentry id="sd_booted">
+<refentry id="sd_booted"
+ xmlns:xi="http://www.w3.org/2001/XInclude">
<refentryinfo>
<title>sd_booted</title>
<refnamediv>
<refname>sd_booted</refname>
- <refpurpose>Test whether the system is running the systemd init system.</refpurpose>
+ <refpurpose>Test whether the system is running the systemd init system</refpurpose>
</refnamediv>
<refsynopsisdiv>
<funcsynopsis>
- <funcsynopsisinfo>#include "sd-daemon.h"</funcsynopsisinfo>
+ <funcsynopsisinfo>#include <systemd/sd-daemon.h></funcsynopsisinfo>
<funcprototype>
<funcdef>int <function>sd_booted</function></funcdef>
<refsect1>
<title>Notes</title>
- <para>This function is provided by the reference
- implementation of APIs for new-style daemons and
- distributed with the systemd package. The algorithm it
- implements is simple, and can easily be reimplemented
- in daemons if it is important to support this
- interface without using the reference
- implementation.</para>
+ <xi:include href="libsystemd-pkgconfig.xml" xpointer="pkgconfig-text"/>
<para>Internally, this function checks whether the
- <filename>/cgroup/systemd</filename> virtual file
- system is mounted, by comparing the st_dev value of
- the <function>stat()</function> data of
- <filename>/cgroup</filename> and
- <filename>/cgroup/systemd</filename>.</para>
-
- <para>For details about the algorithm check the
- liberally licensed reference implementation sources:
- <ulink url="http://cgit.freedesktop.org/systemd/tree/src/sd-daemon.c"/>
- resp. <ulink
- url="http://cgit.freedesktop.org/systemd/tree/src/sd-daemon.h"/></para>
-
- <para><function>sd_booted()</function> is implemented
- in the reference implementation's drop-in
- <filename>sd-daemon.c</filename> and
- <filename>sd-daemon.h</filename> files. It is
- recommended that applications consuming these APIs
- copy the implementation into their source tree. For
- more details about the reference implementation see
- <citerefentry><refentrytitle>sd_daemon</refentrytitle><manvolnum>7</manvolnum></citerefentry></para>
-
- <para>If -DDISABLE_SYSTEMD is set during compilation
- this function will always return 0 and otherwise
- become a NOP.</para>
+ directory <filename>/run/systemd/system/</filename>
+ exists. A simple check like this can also be
+ implemented trivially in shell or any other
+ language.</para>
</refsect1>
<refsect1>
<title>See Also</title>
<para>
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
- <citerefentry><refentrytitle>sd_daemon</refentrytitle><manvolnum>7</manvolnum></citerefentry>
+ <citerefentry><refentrytitle>sd-daemon</refentrytitle><manvolnum>3</manvolnum></citerefentry>
</para>
</refsect1>