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This part of the copyright blurb stems from the GPL use recommendations: https://www.gnu.org/licenses/gpl-howto.en.html The concept appears to originate in times where version control was per file, instead of per tree, and was a way to glue the files together. Ultimately, we nowadays don't live in that world anymore, and this information is entirely useless anyway, as people are very welcome to copy these files into any projects they like, and they shouldn't have to change bits that are part of our copyright header for that. hence, let's just get rid of this old cruft, and shorten our codebase a bit.
98 lines
2.8 KiB
XML
98 lines
2.8 KiB
XML
<?xml version='1.0'?> <!--*-nxml-*-->
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
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"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
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<!ENTITY % entities SYSTEM "custom-entities.ent" >
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%entities;
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]>
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<!--
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SPDX-License-Identifier: LGPL-2.1+
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Copyright 2015 David Herrmann <dh.herrmann@gmail.com>
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-->
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<refentry id="udev_new"
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xmlns:xi="http://www.w3.org/2001/XInclude">
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<refentryinfo>
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<title>udev_new</title>
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<productname>systemd</productname>
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<authorgroup>
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<author>
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<contrib>Developer</contrib>
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<firstname>David</firstname>
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<surname>Herrmann</surname>
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<email>dh.herrmann@gmail.com</email>
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</author>
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</authorgroup>
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</refentryinfo>
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<refmeta>
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<refentrytitle>udev_new</refentrytitle>
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<manvolnum>3</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>udev_new</refname>
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<refname>udev_ref</refname>
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<refname>udev_unref</refname>
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<refpurpose>Create, acquire and release a udev context object</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<funcsynopsis>
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<funcsynopsisinfo>#include <libudev.h></funcsynopsisinfo>
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<funcprototype>
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<funcdef>struct udev *<function>udev_new</function></funcdef>
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<paramdef><parameter>void</parameter></paramdef>
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</funcprototype>
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<funcprototype>
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<funcdef>struct udev *<function>udev_ref</function></funcdef>
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<paramdef>struct udev *<parameter>udev</parameter></paramdef>
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</funcprototype>
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<funcprototype>
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<funcdef>struct udev *<function>udev_unref</function></funcdef>
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<paramdef>struct udev *<parameter>udev</parameter></paramdef>
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</funcprototype>
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</funcsynopsis>
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</refsynopsisdiv>
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<refsect1>
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<title>Description</title>
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<para><function>udev_new()</function> allocates a new udev context
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object and returns a pointer to it. This object is opaque and must
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not be accessed by the caller via different means than functions
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provided by libudev. Initially, the reference count of the context
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is 1. You can acquire further references, and drop gained references
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via <function>udev_ref()</function> and
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<function>udev_unref()</function>. Once the reference count hits 0,
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the context object is destroyed and freed.</para>
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</refsect1>
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<refsect1>
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<title>Return Value</title>
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<para>On success, <function>udev_new()</function> returns a pointer
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to the allocated udev context. On failure, <constant>NULL</constant>
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is returned. <function>udev_ref()</function> returns the argument
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that it was passed, unmodified. <function>udev_unref()</function>
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always returns <constant>NULL</constant>.</para>
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</refsect1>
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<refsect1>
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<title>See Also</title>
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<para>
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<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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</para>
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</refsect1>
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</refentry>
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