man/sd-id128.3 \
man/sd-journal.3 \
man/sd_booted.3 \
+ man/sd_bus_add_match.3 \
man/sd_bus_creds_get_pid.3 \
man/sd_bus_creds_new_from_pid.3 \
man/sd_bus_default.3 \
man/sd_bus_error.3 \
man/sd_bus_error_add_map.3 \
+ man/sd_bus_get_fd.3 \
man/sd_bus_message_append.3 \
man/sd_bus_message_append_array.3 \
man/sd_bus_message_append_basic.3 \
man/sd_bus_message_append_strv.3 \
man/sd_bus_message_get_cookie.3 \
man/sd_bus_message_get_monotonic_usec.3 \
+ man/sd_bus_message_read_basic.3 \
man/sd_bus_negotiate_fds.3 \
man/sd_bus_new.3 \
man/sd_bus_path_encode.3 \
+ man/sd_bus_process.3 \
man/sd_bus_request_name.3 \
man/sd_event_add_child.3 \
man/sd_event_add_defer.3 \
man/sd-journal.xml \
man/sd-login.xml \
man/sd_booted.xml \
+ man/sd_bus_add_match.xml \
man/sd_bus_creds_get_pid.xml \
man/sd_bus_creds_new_from_pid.xml \
man/sd_bus_default.xml \
man/sd_bus_error.xml \
man/sd_bus_error_add_map.xml \
+ man/sd_bus_get_fd.xml \
man/sd_bus_message_append.xml \
man/sd_bus_message_append_array.xml \
man/sd_bus_message_append_basic.xml \
man/sd_bus_message_append_strv.xml \
man/sd_bus_message_get_cookie.xml \
man/sd_bus_message_get_monotonic_usec.xml \
+ man/sd_bus_message_read_basic.xml \
man/sd_bus_negotiate_fds.xml \
man/sd_bus_new.xml \
man/sd_bus_path_encode.xml \
+ man/sd_bus_process.xml \
man/sd_bus_request_name.xml \
man/sd_event_add_child.xml \
man/sd_event_add_defer.xml \
--- /dev/null
+<?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_add_match">
+
+ <refentryinfo>
+ <title>sd_bus_add_match</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_add_match</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_bus_add_match</refname>
+
+ <refpurpose>Add a match rule for message dispatching</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include <systemd/sd-bus.h></funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_add_match</function></funcdef>
+ <paramdef>sd_bus *<parameter>bus</parameter></paramdef>
+ <paramdef>sd_bus_slot **<parameter>slot</parameter></paramdef>
+ <paramdef>const char *<parameter>match</parameter></paramdef>
+ <paramdef>sd_bus_message_handler_t <parameter>callback</parameter></paramdef>
+ <paramdef>void *<parameter>userdata</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>typedef int (*<function>sd_bus_message_handler_t</function>)</funcdef>
+ <paramdef>sd_bus_message *<parameter>m</parameter></paramdef>
+ <paramdef>void *<parameter>userdata</parameter></paramdef>
+ <paramdef>sd_bus_error *<parameter>ret_error</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para>
+ <function>sd_bus_add_match()</function> adds a match rule used to dispatch
+ incoming messages. The syntax of the rule passed in
+ <parameter>match</parameter> is described in the
+ <ulink url="https://dbus.freedesktop.org/doc/dbus-specification.html">D-Bus Specification</ulink>.
+ </para>
+
+ <para>
+ The message <parameter>m</parameter> passed to the callback is only
+ borrowed, that is, the callback should not call
+ <citerefentry><refentrytitle>sd_bus_message_unref</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ on it. If the callback wants to hold on to the message beyond the lifetime
+ of the callback, it needs to call
+ <citerefentry><refentrytitle>sd_bus_message_ref</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ to create a new reference.
+ </para>
+
+ <para>
+ If an error occurs during the callback invocation, the callback should
+ return a negative error number. If it wants other callbacks that match the
+ same rule to be called, it should return 0. Otherwise it should return a
+ positive integer.
+ </para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>
+ On success, <function>sd_bus_add_match()</function> returns 0 or a
+ positive integer. On failure, it returns a negative errno-style error
+ code.
+ </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>
--- /dev/null
+<?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_get_fd">
+
+ <refentryinfo>
+ <title>sd_bus_get_fd</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_get_fd</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_bus_get_fd</refname>
+
+ <refpurpose>Get the file descriptor connected to the message bus</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include <systemd/sd-bus.h></funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_get_fd</function></funcdef>
+ <paramdef>sd_bus *<parameter>bus</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para>
+ <function>sd_bus_get_fd()</function> returns the file descriptor used to
+ communicate with the message bus. This descriptor can be used with
+ <citerefentry
+ project='die-net'><refentrytitle>select</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry
+ project='die-net'><refentrytitle>poll</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ or similar functions to wait for incmming messages.
+ </para>
+
+ <para>
+ If the bus was created with the
+ <citerefentry><refentrytitle>sd_bus_set_fd</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ function, then the <parameter>input_fd</parameter> used in that call is
+ returned.
+ </para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>
+ Returns the file descriptor used for incoming messages from the message
+ bus.
+ </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_set_fd</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ </para>
+ </refsect1>
+
+</refentry>
--- /dev/null
+<?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_message_read_basic">
+
+ <refentryinfo>
+ <title>sd_bus_message_read_basic</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_message_read_basic</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_bus_message_read_basic</refname>
+
+ <refpurpose>Read a basic type from a message</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include <systemd/sd-bus.h></funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_message_read_basic</function></funcdef>
+ <paramdef>sd_bus_message *<parameter>m</parameter></paramdef>
+ <paramdef>char <parameter>type</parameter></paramdef>
+ <paramdef>void *<parameter>p</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para>
+ <function>sd_bus_message_read_basic()</function> reads a basic type from a
+ message and advances the read position in the message. The set of basic
+ types and their ascii codes passed in <parameter>type</parameter> are
+ described in the <ulink
+ url="https://dbus.freedesktop.org/doc/dbus-specification.html">D-Bus
+ Specification</ulink>.
+ </para>
+
+ <para>
+ If <parameter>p</parameter> is not NULL, it should contain a pointer to an
+ appropriate object. For example, if <parameter>type</parameter> is
+ <constant>'y'</constant>, the object passed in <parameter>p</parameter>
+ should have type <code>uint8_t *</code>. If <parameter>type</parameter>
+ is <constant>'s'</constant>, the object passed in <parameter>p</parameter>
+ should have type <code>const char **</code>. Note that, if the basic type
+ is a pointer (e.g., <code>const char *</code> in the case of a string),
+ the pointer is only borrowed and the contents must be copied if they are
+ to be used after the end of the messages lifetime. Similarly, during the
+ lifetime of such a pointer, the message must not be modified.
+ </para>
+
+ <para>
+ If there is no object of the specified type at the current position in the
+ message, an error is returned.
+ </para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>
+ On success, <function>sd_bus_message_read_basic()</function> returns 0 or
+ a positive integer. On failure, it returns a negative errno-style error
+ code.
+ </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>
--- /dev/null
+<?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>
projects / thirdparty / systemd.git / commitdiff
