mirror of
https://github.com/systemd/systemd.git
synced 2024-12-23 21:35:11 +03:00
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
119 lines
4.7 KiB
XML
119 lines
4.7 KiB
XML
<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
|
|
<!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_event_source_unref" xmlns:xi="http://www.w3.org/2001/XInclude">
|
|
|
|
<refentryinfo>
|
|
<title>sd_event_source_unref</title>
|
|
<productname>systemd</productname>
|
|
</refentryinfo>
|
|
|
|
<refmeta>
|
|
<refentrytitle>sd_event_source_unref</refentrytitle>
|
|
<manvolnum>3</manvolnum>
|
|
</refmeta>
|
|
|
|
<refnamediv>
|
|
<refname>sd_event_source_unref</refname>
|
|
<refname>sd_event_source_unrefp</refname>
|
|
<refname>sd_event_source_ref</refname>
|
|
|
|
<refpurpose>Increase or decrease event source reference counters</refpurpose>
|
|
</refnamediv>
|
|
|
|
<refsynopsisdiv>
|
|
<funcsynopsis>
|
|
<funcsynopsisinfo>#include <systemd/sd-event.h></funcsynopsisinfo>
|
|
|
|
<funcprototype>
|
|
<funcdef>sd_event_source* <function>sd_event_source_unref</function></funcdef>
|
|
<paramdef>sd_event_source *<parameter>source</parameter></paramdef>
|
|
</funcprototype>
|
|
|
|
<funcprototype>
|
|
<funcdef>void <function>sd_event_source_unrefp</function></funcdef>
|
|
<paramdef>sd_event_source **<parameter>source</parameter></paramdef>
|
|
</funcprototype>
|
|
|
|
<funcprototype>
|
|
<funcdef>sd_event_source* <function>sd_event_source_ref</function></funcdef>
|
|
<paramdef>sd_event_source *<parameter>source</parameter></paramdef>
|
|
</funcprototype>
|
|
|
|
</funcsynopsis>
|
|
</refsynopsisdiv>
|
|
|
|
<refsect1>
|
|
<title>Description</title>
|
|
|
|
<para><function>sd_event_source_unref()</function> may be used to
|
|
decrement by one the reference counter of the event source object
|
|
specified as <parameter>source</parameter>. The reference counter
|
|
is initially set to one, when the event source is created with calls
|
|
such as
|
|
<citerefentry><refentrytitle>sd_event_add_io</refentrytitle><manvolnum>3</manvolnum></citerefentry>
|
|
or
|
|
<citerefentry><refentrytitle>sd_event_add_time</refentrytitle><manvolnum>3</manvolnum></citerefentry>. When
|
|
the reference counter reaches zero it is removed from its event loop
|
|
object and destroyed.</para>
|
|
|
|
<para><function>sd_event_source_unrefp()</function> is similar to
|
|
<function>sd_event_source_unref()</function> but takes a pointer to a
|
|
pointer to an <type>sd_event_source</type> object. This call is useful in
|
|
conjunction with GCC's and LLVM's <ulink
|
|
url="https://gcc.gnu.org/onlinedocs/gcc/Common-Variable-Attributes.html">Clean-up
|
|
Variable Attribute</ulink>. Note that this function is defined as
|
|
inline function.</para>
|
|
|
|
<para><function>sd_event_source_ref()</function> may be used
|
|
to increase by one the reference counter of the event source object
|
|
specified as <parameter>source</parameter>.</para>
|
|
|
|
<para><function>sd_event_source_unref()</function>,
|
|
<function>sd_bus_creds_unrefp()</function> and
|
|
<function>sd_bus_creds_ref()</function> execute no operation if
|
|
the passed event source object is
|
|
<constant>NULL</constant>.</para>
|
|
|
|
<para>Note that event source objects stay alive and may be
|
|
dispatched as long as they have a reference counter greater than
|
|
zero. In order to drop a reference of an event source and make
|
|
sure the associated event source handler function is not called
|
|
anymore it is recommended to combine a call of
|
|
<function>sd_event_source_unref()</function> with a prior call to
|
|
<function>sd_event_source_set_enabled()</function> with
|
|
<constant>SD_EVENT_OFF</constant>.</para>
|
|
</refsect1>
|
|
|
|
<refsect1>
|
|
<title>Return Value</title>
|
|
|
|
<para><function>sd_event_source_unref()</function> always returns
|
|
<constant>NULL</constant>.
|
|
<function>sd_event_source_ref()</function> always returns the
|
|
event source object passed in.</para>
|
|
</refsect1>
|
|
|
|
<xi:include href="libsystemd-pkgconfig.xml" />
|
|
|
|
<refsect1>
|
|
<title>See Also</title>
|
|
|
|
<para>
|
|
<citerefentry><refentrytitle>sd-event</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>sd_event_add_io</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>sd_event_add_time</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>sd_event_add_child</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>sd_event_add_signal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>sd_event_add_defer</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>sd_event_source_set_enabled</refentrytitle><manvolnum>3</manvolnum></citerefentry>
|
|
</para>
|
|
</refsect1>
|
|
|
|
</refentry>
|