X-Git-Url: http://git.ipfire.org/?a=blobdiff_plain;f=man%2Fsd_event_source_unref.xml;h=81131fa737f373b8f85612dc75d0b8212a5bbbad;hb=f789e0b4f891800557c74c385d0f61a0164cb16f;hp=579ec47e8e3878bc6ac4211366dff9b142d598cf;hpb=d353a16d1fe978093e8caae2743cd16356559d8d;p=thirdparty%2Fsystemd.git

diff --git a/man/sd_event_source_unref.xml b/man/sd_event_source_unref.xml
index 579ec47e8e3..81131fa737f 100644
--- a/man/sd_event_source_unref.xml
+++ b/man/sd_event_source_unref.xml
@@ -1,40 +1,13 @@
-<?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">
-
-<!--
-  This file is part of systemd.
-
-  Copyright 2015 Lennart Poettering
-
-  systemd is free software; you can redistribute it and/or modify it
-  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
-  Lesser General Public License for more details.
-
-  You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
--->
+<?xml version='1.0'?>
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//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>
-
-    <authorgroup>
-      <author>
-        <contrib>Developer</contrib>
-        <firstname>Lennart</firstname>
-        <surname>Poettering</surname>
-        <email>lennart@poettering.net</email>
-      </author>
-    </authorgroup>
   </refentryinfo>
 
   <refmeta>
@@ -44,7 +17,10 @@
 
   <refnamediv>
     <refname>sd_event_source_unref</refname>
+    <refname>sd_event_source_unrefp</refname>
     <refname>sd_event_source_ref</refname>
+    <refname>sd_event_source_disable_unref</refname>
+    <refname>sd_event_source_disable_unrefp</refname>
 
     <refpurpose>Increase or decrease event source reference counters</refpurpose>
   </refnamediv>
@@ -58,11 +34,25 @@
         <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>
 
+      <funcprototype>
+        <funcdef>sd_event_source* <function>sd_event_source_disable_unref</function></funcdef>
+        <paramdef>sd_event_source *<parameter>source</parameter></paramdef>
+      </funcprototype>
+
+      <funcprototype>
+        <funcdef>void <function>sd_event_source_disable_unrefp</function></funcdef>
+        <paramdef>sd_event_source **<parameter>source</parameter></paramdef>
+      </funcprototype>
     </funcsynopsis>
   </refsynopsisdiv>
 
@@ -80,30 +70,50 @@
     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>Both functions execute no operation if the passed event
-    source object is <constant>NULL</constant>.</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
+    <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>
+    <function>sd_event_source_set_enabled()</function> with <constant>SD_EVENT_OFF</constant> or call
+    <function>sd_event_source_disable_unref()</function>, see below.</para>
+
+    <para><function>sd_event_source_disable_unref()</function> combines a call to
+    <function>sd_event_source_set_enabled()</function> with <constant>SD_EVENT_OFF</constant> with
+    <function>sd_event_source_unref()</function>. This ensures that the source is disabled before the local
+    reference to it is lost. The <parameter>source</parameter> parameter is allowed to be
+    <constant>NULL</constant>.</para>
+
+    <para><function>sd_event_source_disable_unrefp()</function> is similar to
+    <function>sd_event_source_unrefp()</function>, but in addition disables the source first. 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>
   </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>
+    <para><function>sd_event_source_unref()</function> and
+    <function>sd_event_source_disable_unref()</function> always return <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" />
@@ -115,8 +125,9 @@
       <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_child</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+      <citerefentry><refentrytitle>sd_event_add_inotify</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>