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Diffstat (limited to 'man/sd_bus_process.xml')
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diff --git a/man/sd_bus_process.xml b/man/sd_bus_process.xml new file mode 100644 index 000000000..4b9f52e52 --- /dev/null +++ b/man/sd_bus_process.xml @@ -0,0 +1,111 @@ +<?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 2016 Julian Orth + + 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/>. +--> + +<refentry id="sd_bus_process"> + + <refentryinfo> + <title>sd_bus_process</title> + <productname>systemd</productname> + + <authorgroup> + <author> + <firstname>Julian</firstname> + <surname>Orth</surname> + <email>ju.orth@gmail.com</email> + </author> + </authorgroup> + </refentryinfo> + + <refmeta> + <refentrytitle>sd_bus_process</refentrytitle> + <manvolnum>3</manvolnum> + </refmeta> + + <refnamediv> + <refname>sd_bus_process</refname> + + <refpurpose>Drive the connection</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <funcsynopsis> + <funcsynopsisinfo>#include <systemd/sd-bus.h></funcsynopsisinfo> + + <funcprototype> + <funcdef>int <function>sd_bus_process</function></funcdef> + <paramdef>sd_bus *<parameter>bus</parameter></paramdef> + <paramdef>sd_bus_message **<parameter>r</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + <refsect1> + <title>Description</title> + + <para> + <function>sd_bus_process()</function> drives the connection between the + message bus and the client. That is, it handles connecting, + authentication, and message processing. It should be called in a loop + until no further progress can be made or an error occurs. + </para> + + <para> + Once no further progress can be made, + <citerefentry><refentrytitle>sd_bus_wait</refentrytitle><manvolnum>3</manvolnum></citerefentry> + should be called. Alternatively the user can wait for incoming data on + the file descriptor returned by + <citerefentry><refentrytitle>sd_bus_get_fd</refentrytitle><manvolnum>3</manvolnum></citerefentry>. + </para> + + <para> + <function>sd_bus_process</function> processes at most one incoming + message per call. If the parameter <parameter>r</parameter> is not NULL + and the call processed a message, <code>*r</code> is set to this message. + The caller owns a reference to this message and should call + <citerefentry><refentrytitle>sd_bus_message_unref</refentrytitle><manvolnum>3</manvolnum></citerefentry> + when the message is no longer needed. If <parameter>r</parameter> is not + NULL, progress was made, but no message was processed, <code>*r</code> is + set to NULL. + </para> + </refsect1> + + <refsect1> + <title>Return Value</title> + + <para> + If progress was made, a positive integer is returned. If no progress was + made, 0 is returned. If an error occurs, a negative errno-style error code + is returned. + </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>, + </para> + </refsect1> + +</refentry> |