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/>.
-->
<refmeta>
<refentrytitle>sd-daemon</refentrytitle>
- <manvolnum>7</manvolnum>
+ <manvolnum>3</manvolnum>
</refmeta>
<refnamediv>
<refname>sd-daemon</refname>
+ <refname>SD_EMERG</refname>
+ <refname>SD_ALERT</refname>
+ <refname>SD_CRIT</refname>
+ <refname>SD_ERR</refname>
+ <refname>SD_WARNING</refname>
+ <refname>SD_NOTICE</refname>
+ <refname>SD_INFO</refname>
+ <refname>SD_DEBUG</refname>
<refpurpose>Reference implementation of APIs for
new-style daemons</refpurpose>
</refnamediv>
<refsynopsisdiv>
<funcsynopsis>
- <funcsynopsisinfo>#include "sd-daemon.h"</funcsynopsisinfo>
+ <funcsynopsisinfo>#include <systemd/sd-daemon.h></funcsynopsisinfo>
</funcsynopsis>
+
+ <cmdsynopsis>
+ <command>pkg-config --cflags --libs libsystemd-daemon</command>
+ </cmdsynopsis>
+
</refsynopsisdiv>
<refsect1>
<citerefentry><refentrytitle>sd_booted</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
<citerefentry><refentrytitle>sd_is_fifo</refentrytitle><manvolnum>3</manvolnum></citerefentry>
for more information about the functions
- implemented. In addition to these functions a couple
+ implemented. In addition to these functions, a couple
of logging prefixes are defined as macros:</para>
<programlisting>#define SD_EMERG "<0>" /* system is unusable */
conjunction with STDERR-based logging as implemented
by systemd. If a systemd service definition file is
configured with <varname>StandardError=syslog</varname>
- or <varname>StandardError=kmsg</varname> these
+ or <varname>StandardError=kmsg</varname>, these
prefixes can be used to encode a log level in lines
printed. This is similar to the kernel
<function>printk()</function>-style logging. See
implementation. See the respective function man pages
for details.</para>
- <para>In addition, for details about the algorithms
+ <para>In addition, for details about the algorithms,
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>
+ <ulink url="http://cgit.freedesktop.org/systemd/systemd/plain/src/libsystemd-daemon/sd-daemon.c"/>
+ and <ulink url="http://cgit.freedesktop.org/systemd/systemd/plain/src/systemd/sd-daemon.h"/></para>
<para>These APIs are 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, either
- verbatim or in excerpts. These interfaces are
- currently not available in a dynamic library.</para>
+ implementation's <filename>sd-daemon.c</filename> and
+ <filename>sd-daemon.h</filename> files. These
+ interfaces are available as a shared library, which can
+ be compiled and linked to with the
+ <constant>libsystemd-daemon</constant> <citerefentry><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file. Alternatively, applications consuming these APIs
+ may copy the implementation into their source tree,
+ either verbatim or in excerpts.</para>
<para>The functions directly related to new-style
daemons become NOPs when -DDISABLE_SYSTEMD is set
- during compilation. In addition, if
+ during compilation and the reference implementation is
+ used as drop-in files. In addition, if
<filename>sd-daemon.c</filename> is compiled on
non-Linux systems they become NOPs.</para>
</refsect1>
<citerefentry><refentrytitle>sd_notify</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
<citerefentry><refentrytitle>sd_booted</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
<citerefentry><refentrytitle>sd_is_fifo</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_watchdog_enabled</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
<citerefentry><refentrytitle>daemon</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd.socket</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry><refentrytitle>fprintf</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
- <citerefentry><refentrytitle>sd-readahead</refentrytitle><manvolnum>7</manvolnum></citerefentry>
+ <citerefentry><refentrytitle>sd-readahead</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
</para>
</refsect1>