![Lennart Poettering](/assets/img/avatar_default.png)
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.
122 lines
4.4 KiB
XML
122 lines
4.4 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+
|
||
|
||
Copyright 2017 Lennart Poettering
|
||
-->
|
||
|
||
<refentry id="sd_bus_set_sender">
|
||
|
||
<refentryinfo>
|
||
<title>sd_bus_set_sender</title>
|
||
<productname>systemd</productname>
|
||
|
||
<authorgroup>
|
||
<author>
|
||
<contrib>Developer</contrib>
|
||
<firstname>Lennart</firstname>
|
||
<surname>Poettering</surname>
|
||
<email>lennart@poettering.net</email>
|
||
</author>
|
||
</authorgroup>
|
||
</refentryinfo>
|
||
|
||
<refmeta>
|
||
<refentrytitle>sd_bus_set_sender</refentrytitle>
|
||
<manvolnum>3</manvolnum>
|
||
</refmeta>
|
||
|
||
<refnamediv>
|
||
<refname>sd_bus_set_sender</refname>
|
||
<refname>sd_bus_get_sender</refname>
|
||
|
||
<refpurpose>Configure default sender for outgoing messages</refpurpose>
|
||
</refnamediv>
|
||
|
||
<refsynopsisdiv>
|
||
<funcsynopsis>
|
||
<funcsynopsisinfo>#include <systemd/sd-bus.h></funcsynopsisinfo>
|
||
|
||
<funcprototype>
|
||
<funcdef>int <function>sd_bus_set_sender</function></funcdef>
|
||
<paramdef>sd_bus *<parameter>bus</parameter></paramdef>
|
||
<paramdef>const char* <parameter>name</parameter></paramdef>
|
||
</funcprototype>
|
||
|
||
<funcprototype>
|
||
<funcdef>int <function>sd_bus_get_sender</function></funcdef>
|
||
<paramdef>sd_bus *<parameter>bus</parameter></paramdef>
|
||
<paramdef>const char** <parameter>name</parameter></paramdef>
|
||
</funcprototype>
|
||
|
||
</funcsynopsis>
|
||
</refsynopsisdiv>
|
||
|
||
<refsect1>
|
||
<title>Description</title>
|
||
|
||
<para><function>sd_bus_set_sender()</function> configures the default sender service name to use for outgoing
|
||
messages. The service name specified in the <parameter>name</parameter> parameter is set on all outgoing messages
|
||
that are sent on the connection and have no sender set yet, for example through
|
||
<citerefentry><refentrytitle>sd_bus_message_set_sender</refentrytitle><manvolnum>3</manvolnum></citerefentry>. Note
|
||
that this function is only supported on direct connections, i.e. not on connections to a bus broker as the broker
|
||
will fill in the sender service name automatically anyway. By default no sender name is configured, and hence
|
||
messages are sent without sender field set. If the <parameter>name</parameter> parameter is specified as
|
||
<constant>NULL</constant> the default sender service name is cleared, returning to the default state if a default
|
||
sender service name was set before. If passed as non-<constant>NULL</constant> the specified name must be a valid
|
||
unique or well-known service name.</para>
|
||
|
||
<para><function>sd_bus_get_sender()</function> may be used to query the current default service name for outgoing
|
||
messages.</para>
|
||
</refsect1>
|
||
|
||
<refsect1>
|
||
<title>Return Value</title>
|
||
|
||
<para>On success, these functions return 0 or a positive integer. On failure, they return a negative errno-style
|
||
error code.</para>
|
||
</refsect1>
|
||
|
||
<refsect1>
|
||
<title>Errors</title>
|
||
|
||
<para>Returned errors may indicate the following problems:</para>
|
||
|
||
<variablelist>
|
||
<varlistentry>
|
||
<term><constant>-ECHILD</constant></term>
|
||
|
||
<listitem><para>The bus connection has been created in a different process.</para></listitem>
|
||
</varlistentry>
|
||
|
||
<varlistentry>
|
||
<term><constant>-EPERM</constant></term>
|
||
|
||
<listitem><para>The specified bus connection object is a not a direct but a brokered connection.</para></listitem>
|
||
</varlistentry>
|
||
</variablelist>
|
||
</refsect1>
|
||
|
||
<refsect1>
|
||
<title>Notes</title>
|
||
|
||
<para><function>sd_bus_set_sender()</function> and <function>sd_bus_get_sender()</function> 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>
|
||
|
||
<refsect1>
|
||
<title>See Also</title>
|
||
|
||
<para>
|
||
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
|
||
<citerefentry><refentrytitle>sd-bus</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
|
||
<citerefentry><refentrytitle>sd_bus_message_set_sender</refentrytitle><manvolnum>3</manvolnum></citerefentry>
|
||
</para>
|
||
</refsect1>
|
||
|
||
</refentry>
|