-<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<?xml version='1.0'?>
<!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 2014 Zbigniew Jędrzejewski-Szmek
-
- 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/>.
+ SPDX-License-Identifier: LGPL-2.1+
-->
-<refentry id="sd_bus_creds_new_from_pid">
+<refentry id="sd_bus_creds_new_from_pid" xmlns:xi="http://www.w3.org/2001/XInclude">
<refentryinfo>
<title>sd_bus_creds_new_from_pid</title>
<productname>systemd</productname>
-
- <authorgroup>
- <author>
- <contrib>A monkey with a typewriter</contrib>
- <firstname>Zbigniew</firstname>
- <surname>Jędrzejewski-Szmek</surname>
- <email>zbyszek@in.waw.pl</email>
- </author>
- </authorgroup>
</refentryinfo>
<refmeta>
<refname>sd_bus_creds_get_augmented_mask</refname>
<refname>sd_bus_creds_ref</refname>
<refname>sd_bus_creds_unref</refname>
+ <refname>sd_bus_creds_unrefp</refname>
<refpurpose>Retrieve credentials object for the specified PID</refpurpose>
</refnamediv>
<funcprototype>
<funcdef>uint64_t <function>sd_bus_creds_get_mask</function></funcdef>
- <paramdef>const sd_bus_creds *<parameter>c</parameter></paramdef>
+ <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
</funcprototype>
<funcprototype>
<funcdef>uint64_t <function>sd_bus_creds_get_augmented_mask</function></funcdef>
- <paramdef>const sd_bus_creds *<parameter>c</parameter></paramdef>
+ <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
</funcprototype>
<funcprototype>
<funcdef>sd_bus_creds *<function>sd_bus_creds_unref</function></funcdef>
<paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
</funcprototype>
+
+ <funcprototype>
+ <funcdef>void <function>sd_bus_creds_unrefp</function></funcdef>
+ <paramdef>sd_bus_creds **<parameter>c</parameter></paramdef>
+ </funcprototype>
</funcsynopsis>
<para>
<para><function>sd_bus_creds_unref()</function> destroys a reference
to <parameter>c</parameter>.</para>
+
+ <para><function>sd_bus_creds_unrefp()</function> is similar to
+ <function>sd_bus_creds_unref()</function> but takes a pointer to a
+ pointer to an <type>sd_bus_creds</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_bus_creds_ref()</function>,
+ <function>sd_bus_creds_unref()</function> and
+ <function>sd_bus_creds_unrefp()</function> execute no operation if
+ the passed in bus credentials object is
+ <constant>NULL</constant>.</para>
+
</refsect1>
<refsect1>
</variablelist>
</refsect1>
- <refsect1>
- <title>Notes</title>
-
- <para><function>sd_bus_creds_new_from_pid()</function> and the
- other calls described here are available as a shared library,
- which can be compiled and linked to with the
- <constant>libsystemd</constant> <citerefentry
- project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
- file.</para>
- </refsect1>
+ <xi:include href="libsystemd-pkgconfig.xml" />
<refsect1>
<title>See Also</title>