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681eb9cf2b
In particular, use /lib/systemd instead of /usr/lib/systemd in distributions like Debian which still have not adopted a /usr merge setup. Use XML entities from man/custom-entities.ent to replace configured paths while doing XSLT processing of the original XML files. There was precedent of some files (such as systemd.generator.xml) which were already using this approach. This addresses most of the (manual) fixes from this patch: http://anonscm.debian.org/cgit/pkg-systemd/systemd.git/tree/debian/patches/Fix-paths-in-man-pages.patch?h=experimental-220 The idea of using generic XML entities was presented here: http://lists.freedesktop.org/archives/systemd-devel/2015-May/032240.html This patch solves almost all the issues, with the exception of: - Path to /bin/mount and /bin/umount. - Generic statements about preference of /lib over /etc. These will be handled separately by follow up patches. Tested: - With default configure settings, ran "make install" to two separate directories and compared the output to confirm they matched exactly. - Used a set of configure flags including $CONFFLAGS from Debian: http://anonscm.debian.org/cgit/pkg-systemd/systemd.git/tree/debian/rules Installed the tree and confirmed the paths use /lib/systemd instead of /usr/lib/systemd and that no other unexpected differences exist. - Confirmed that `make distcheck` still passes.
194 lines
8.1 KiB
XML
194 lines
8.1 KiB
XML
<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
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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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This file is part of systemd.
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Copyright 2014 Zbigniew Jędrzejewski-Szmek
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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-->
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<refentry id="sd_bus_message_append_array" conditional="ENABLE_KDBUS"
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xmlns:xi="http://www.w3.org/2001/XInclude">
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<refentryinfo>
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<title>sd_bus_message_append_array</title>
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<productname>systemd</productname>
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<authorgroup>
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<author>
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<contrib>A monkey with a typewriter</contrib>
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<firstname>Zbigniew</firstname>
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<surname>Jędrzejewski-Szmek</surname>
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<email>zbyszek@in.waw.pl</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>sd_bus_message_append_array</refentrytitle>
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<manvolnum>3</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>sd_bus_message_append_array</refname>
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<refname>sd_bus_message_append_array_memfd</refname>
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<refname>sd_bus_message_append_array_iovec</refname>
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<refname>sd_bus_message_append_array_space</refname>
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<refpurpose>Attach an array of items to a message</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<funcsynopsis>
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<funcsynopsisinfo>#include <systemd/sd-bus.h></funcsynopsisinfo>
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<funcprototype>
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<funcdef>int sd_bus_message_append_array</funcdef>
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<paramdef>sd_bus_message *<parameter>m</parameter></paramdef>
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<paramdef>char <parameter>type</parameter></paramdef>
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<paramdef>char void *<parameter>ptr</parameter></paramdef>
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<paramdef>size_t <parameter>size</parameter></paramdef>
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</funcprototype>
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<funcprototype>
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<funcdef>int sd_bus_message_append_array_memfd</funcdef>
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<paramdef>sd_bus_message *<parameter>m</parameter></paramdef>
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<paramdef>char <parameter>type</parameter></paramdef>
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<paramdef>int <parameter>memfd</parameter></paramdef>
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</funcprototype>
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<funcprototype>
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<funcdef>int sd_bus_message_append_array_iovec</funcdef>
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<paramdef>sd_bus_message *<parameter>m</parameter></paramdef>
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<paramdef>char <parameter>type</parameter></paramdef>
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<paramdef>const struct iovec *<parameter>iov</parameter></paramdef>
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<paramdef>unsigned <parameter>n</parameter></paramdef>
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</funcprototype>
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<funcprototype>
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<funcdef>int sd_bus_message_append_array_space</funcdef>
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<paramdef>char <parameter>type</parameter></paramdef>
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<paramdef>size_t <parameter>size</parameter></paramdef>
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<paramdef>char void **<parameter>ptr</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>The <function>sd_bus_message_append_array</function> functionc
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appends items to message <parameter>m</parameter> as the single
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array. A container will be opened, items appended, and the
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container closed. Parameter <parameter>type</parameter> determines
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how pointer <parameter>p</parameter> is interpreted.
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<parameter>type</parameter> must be one of the "trivial" types
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<literal>y</literal>, <literal>n</literal>, <literal>q</literal>,
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<literal>i</literal>, <literal>u</literal>, <literal>x</literal>,
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<literal>t</literal>, <literal>d</literal> (but not
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<literal>b</literal>), as defined by the
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<ulink url="http://dbus.freedesktop.org/doc/dbus-specification.html#basic-types">Basic Types</ulink>
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section of the D-Bus specification, and listed in
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<citerefentry><refentrytitle>sd_bus_message_append_basic</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
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Pointer <parameter>p</parameter> must point to an array of size
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<parameter>size</parameter> bytes containing items of the
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respective type. Size <parameter>size</parameter> must be a
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multiple of the size of the type <parameter>type</parameter>. As a
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special case, <parameter>p</parameter> may be
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<constant>NULL</constant>, if <parameter>size</parameter> is 0.
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</para>
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<para>The memory pointed at by <parameter>p</parameter> is copied
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into the memory area containing the message and may be changed
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after this call.</para>
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<para>The
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<function>sd_bus_message_append_array_memfd</function> function appends
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items to message <parameter>m</parameter>, similarly to
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<function>sd_bus_message_append_array</function>. Contents of the
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memory file descriptor <parameter>memfd</parameter> are used as
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the contents of the array. Their size must be a multiple of the
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size of the type <parameter>type</parameter>.</para>
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<para>The descriptor specified with <parameter>memfd</parameter>
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will be sealed and cannot be modified after this call.</para>
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<para>The
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<function>sd_bus_message_append_array_iovec</function> function appends
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items to message <parameter>m</parameter>, similarly to
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<function>sd_bus_message_append_array</function>. Contents of the
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iovec <parameter>iov</parameter> are used as the contents of the
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array. The total size of <parameter>iov</parameter> payload (the
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sum of <structfield>iov_len</structfield> fields) must be a multiple
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of the size of the type <parameter>type</parameter>.</para>
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<para>The <parameter>iov</parameter> argument must point to
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<parameter>n</parameter> <structname>struct iovec</structname>
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structures. Each structure may have the
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<structname>iov_base</structname> field set, in which case the
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memory pointed to will be copied into the message, or unset, in
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which case a block of zeros of length
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<structname>iov_len</structname> bytes will be inserted. The
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memory pointed at by <parameter>iov</parameter> may be changed
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after this call.</para>
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<para>The
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<function>sd_bus_message_append_array_space</function> function appends
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space for an array of items to message <parameter>m</parameter>.
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It behaves the same as
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<function>sd_bus_message_append_array</function>, but instead
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of copying items to the message, it returns a pointer to the
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destination area to the caller in pointer <parameter>p</parameter>.
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</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, these calls return 0 or a positive integer. On
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failure, they returns a negative errno-style error code.</para>
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</refsect1>
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<xi:include href="sd_bus_message_append_basic.xml" xpointer="errors" />
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<refsect1>
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<title>Notes</title>
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<para><function>sd_bus_append_array()</function> and other
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functions described here are available as a shared library, which
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can be compiled and linked to with the
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<constant>libsystemd</constant> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
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file.</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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<citerefentry><refentrytitle>sd-bus</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>sd_bus_message_append</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>sd_bus_message_append_basic</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
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<ulink url="http://dbus.freedesktop.org/doc/dbus-specification.html">The D-Bus specification</ulink>
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</para>
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</refsect1>
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</refentry>
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