mirror of
https://github.com/systemd/systemd.git
synced 2024-12-02 23:03:50 +08:00
fdbbee37d5
Docbook styles required those to be present, even though the templates that we use did not show those names anywhere. But something changed semi-recently (I would suspect docbook templates, but there was only a minor version bump in recent years, and the changelog does not suggest anything related), and builds now work without those entries. Let's drop this dead weight. Tested with F26-F29, debian unstable. $ perl -i -0pe 's/\s*<authorgroup>.*<.authorgroup>//gms' man/*xml
121 lines
5.0 KiB
XML
121 lines
5.0 KiB
XML
<?xml version='1.0'?> <!--*-nxml-*-->
|
|
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
|
|
"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
|
|
|
|
<!--
|
|
SPDX-License-Identifier: LGPL-2.1+
|
|
-->
|
|
|
|
<refentry id="sd-daemon"
|
|
xmlns:xi="http://www.w3.org/2001/XInclude">
|
|
|
|
<refentryinfo>
|
|
<title>sd-daemon</title>
|
|
<productname>systemd</productname>
|
|
</refentryinfo>
|
|
|
|
<refmeta>
|
|
<refentrytitle>sd-daemon</refentrytitle>
|
|
<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>APIs for
|
|
new-style daemons</refpurpose>
|
|
</refnamediv>
|
|
|
|
<refsynopsisdiv>
|
|
<funcsynopsis>
|
|
<funcsynopsisinfo>#include <systemd/sd-daemon.h></funcsynopsisinfo>
|
|
</funcsynopsis>
|
|
|
|
<cmdsynopsis>
|
|
<command>pkg-config --cflags --libs libsystemd</command>
|
|
</cmdsynopsis>
|
|
|
|
</refsynopsisdiv>
|
|
|
|
<refsect1>
|
|
<title>Description</title>
|
|
|
|
<para><filename>sd-daemon.h</filename> provides APIs for new-style
|
|
daemons, as implemented by the
|
|
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>
|
|
service manager.</para>
|
|
|
|
<para>See
|
|
<citerefentry><refentrytitle>sd_listen_fds</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
|
|
<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>
|
|
for more information about the functions implemented. In addition
|
|
to these functions, a couple of logging prefixes are defined as
|
|
macros:</para>
|
|
|
|
<programlisting>#define SD_EMERG "<0>" /* system is unusable */
|
|
#define SD_ALERT "<1>" /* action must be taken immediately */
|
|
#define SD_CRIT "<2>" /* critical conditions */
|
|
#define SD_ERR "<3>" /* error conditions */
|
|
#define SD_WARNING "<4>" /* warning conditions */
|
|
#define SD_NOTICE "<5>" /* normal but significant condition */
|
|
#define SD_INFO "<6>" /* informational */
|
|
#define SD_DEBUG "<7>" /* debug-level messages */</programlisting>
|
|
|
|
<para>These prefixes are intended to be used in conjunction with
|
|
stderr-based logging as implemented by systemd. If a systemd
|
|
service definition file is configured with
|
|
<varname>StandardError=journal</varname>,
|
|
<varname>StandardError=syslog</varname> 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
|
|
<citerefentry><refentrytitle>klogctl</refentrytitle><manvolnum>2</manvolnum></citerefentry>
|
|
for more information.</para>
|
|
|
|
<para>The log levels are identical to
|
|
<citerefentry project='man-pages'><refentrytitle>syslog</refentrytitle><manvolnum>3</manvolnum></citerefentry>'s
|
|
log level system. To use these prefixes simply prefix every line
|
|
with one of these strings. A line that is not prefixed will be
|
|
logged at the default log level SD_INFO.</para>
|
|
|
|
<example>
|
|
<title>Hello World</title>
|
|
|
|
<para>A daemon may log with the log level NOTICE by issuing this
|
|
call:</para>
|
|
|
|
<programlisting>fprintf(stderr, SD_NOTICE "Hello World!\n");</programlisting>
|
|
</example>
|
|
</refsect1>
|
|
|
|
<xi:include href="libsystemd-pkgconfig.xml" />
|
|
|
|
<refsect1>
|
|
<title>See Also</title>
|
|
<para>
|
|
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>sd_listen_fds</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
|
|
<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 project='man-pages'><refentrytitle>fprintf</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
|
|
<citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
|
|
</para>
|
|
</refsect1>
|
|
|
|
</refentry>
|