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<?xml version='1.0'?> <!-- * - nxml - * -->
< !DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
<!-- SPDX - License - Identifier: LGPL - 2.1 - or - later -->
<refentry id= "sd-varlink"
xmlns:xi="http://www.w3.org/2001/XInclude">
<refentryinfo >
<title > sd-varlink</title>
<productname > systemd</productname>
</refentryinfo>
<refmeta >
<refentrytitle > sd-varlink</refentrytitle>
<manvolnum > 3</manvolnum>
</refmeta>
<refnamediv >
<refname > sd-varlink</refname>
<refpurpose > APIs for Varlink IPC</refpurpose>
</refnamediv>
<refsynopsisdiv >
<funcsynopsis >
<funcsynopsisinfo > #include < systemd/sd-varlink.h> </funcsynopsisinfo>
</funcsynopsis>
<cmdsynopsis >
<command > pkg-config --cflags --libs libsystemd</command>
</cmdsynopsis>
</refsynopsisdiv>
<refsect1 >
<title > Description</title>
<para > <filename > sd-varlink.h</filename> is part of
<citerefentry > <refentrytitle > libsystemd</refentrytitle> <manvolnum > 3</manvolnum> </citerefentry> and
provides APIs for implementing Varlink IPC clients and services. See <ulink url= "https://varlink.org/" />
for more information about Varlink IPC.</para>
<para > Varlink IPC uses <ulink url= "https://json.org/" > JSON</ulink> as marshalling format. The sd-varlink
API relies on the
<citerefentry > <refentrytitle > sd-json</refentrytitle> <manvolnum > 3</manvolnum> </citerefentry> API for JSON
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serialization, deserialization and manipulation.</para>
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<para > The <citerefentry > <refentrytitle > varlinkctl</refentrytitle> <manvolnum > 1</manvolnum> </citerefentry> tool
makes the functionality implemented by sd-varlink available from the command line.</para>
</refsect1>
<xi:include href= "libsystemd-pkgconfig.xml" />
<refsect1 >
<title > See Also</title>
<para > <simplelist type= "inline" >
<member > <citerefentry > <refentrytitle > systemd</refentrytitle> <manvolnum > 1</manvolnum> </citerefentry> </member>
<member > <citerefentry > <refentrytitle > sd-event</refentrytitle> <manvolnum > 3</manvolnum> </citerefentry> </member>
<member > <citerefentry > <refentrytitle > sd-json</refentrytitle> <manvolnum > 3</manvolnum> </citerefentry> </member>
<member > <citerefentry > <refentrytitle > varlinkctl</refentrytitle> <manvolnum > 1</manvolnum> </citerefentry> </member>
<member > <citerefentry > <refentrytitle > sd-bus</refentrytitle> <manvolnum > 3</manvolnum> </citerefentry> </member>
<member > <citerefentry project= 'die-net' > <refentrytitle > pkg-config</refentrytitle> <manvolnum > 1</manvolnum> </citerefentry> </member>
</simplelist> </para>
</refsect1>
</refentry>