mirror of
https://github.com/Zeckmathederg/glfs.git
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692 lines
25 KiB
XML
692 lines
25 KiB
XML
<?xml version="1.0" encoding="ISO-8859-1"?>
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<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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<!ENTITY % general-entities SYSTEM "../../general.ent">
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%general-entities;
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<!ENTITY dbus-download-http "https://dbus.freedesktop.org/releases/dbus/dbus-&dbus-version;.tar.xz">
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<!ENTITY dbus-download-ftp " ">
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<!ENTITY dbus-md5sum "ddd5570aff05191dbee8e42d751f1b7d">
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<!ENTITY dbus-size "1.3 MB">
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<!ENTITY dbus-buildsize "21 MB (add 18 MB for the tests)">
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<!ENTITY dbus-time "0.3 SBU (add 8.0 SBU for the tests)">
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<!-- The former value was 0.8 SBU, which was far more sensible. -->
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]>
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<sect1 id="dbus" xreflabel="dbus-&dbus-version;">
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<?dbhtml filename="dbus.html"?>
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<sect1info>
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<date>$Date$</date>
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</sect1info>
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<title>dbus-&dbus-version;</title>
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<indexterm zone="dbus">
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<primary sortas="a-D-Bus">D-Bus</primary>
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</indexterm>
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<sect2 role="package">
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<title>Introduction to D-Bus</title>
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<para revision="sysv">
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<application>D-Bus</application> is a message bus system, a simple way
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for applications to talk to one another.
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<application>D-Bus</application> supplies both a system daemon (for
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events such as <quote>new hardware device added</quote> or <quote>printer
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queue changed</quote>) and a per-user-login-session daemon (for general
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IPC needs among user applications). Also, the message bus is built on top
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of a general one-to-one message passing framework, which can be used by
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any two applications to communicate directly (without going through the
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message bus daemon).
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</para>
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<para revision="systemd">
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Even though <application>D-Bus</application> was built in LFS, there are
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some features provided by the package that other BLFS packages need, but
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their dependencies didn't fit into LFS.
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</para>
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&lfs111_checked;
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<bridgehead renderas="sect3">Package Information</bridgehead>
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<itemizedlist spacing="compact">
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<listitem>
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<para>
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Download (HTTP): <ulink url="&dbus-download-http;"/>
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</para>
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</listitem>
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<listitem>
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<para>
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Download (FTP): <ulink url="&dbus-download-ftp;"/>
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</para>
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</listitem>
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<listitem>
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<para>
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Download MD5 sum: &dbus-md5sum;
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</para>
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</listitem>
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<listitem>
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<para>
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Download size: &dbus-size;
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</para>
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</listitem>
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<listitem>
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<para>
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Estimated disk space required: &dbus-buildsize;
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</para>
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</listitem>
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<listitem>
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<para>
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Estimated build time: &dbus-time;
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</para>
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</listitem>
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</itemizedlist>
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<bridgehead renderas="sect3">D-Bus Dependencies</bridgehead>
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<bridgehead renderas="sect4" revision="systemd">Required</bridgehead>
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<para role="required" revision="systemd">
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<xref linkend="systemd"/>
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</para>
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<bridgehead renderas="sect4">Recommended</bridgehead>
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<para role="recommended">
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<xref linkend="xorg7-lib"/> (for <command>dbus-launch</command> program)
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<phrase revision="sysv">and <xref linkend="elogind"/> (These are
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circular dependencies. First build without them, and then again after
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both packages are installed.)</phrase>
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</para>
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<bridgehead renderas="sect4">Optional</bridgehead>
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<para role="optional">
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For the tests:
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<xref linkend="dbus-glib"/>,
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<xref linkend="dbus-python"/>,
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<xref linkend="pygobject3"/>,
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and <xref linkend="valgrind"/>;
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for documentation:
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<xref linkend="doxygen"/>,
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<xref linkend="xmlto"/>,
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<ulink url="https://pypi.python.org/pypi/mallard-ducktype">Ducktype</ulink>,
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and
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<ulink url="&gnome-download-http;/yelp-tools/">Yelp Tools</ulink>
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</para>
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<para condition="html" role="usernotes">User Notes:
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<ulink url="&blfs-wiki;/dbus"/>
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</para>
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</sect2>
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<sect2 role="installation">
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<title>Installation of D-Bus</title>
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<!--
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<para revision="sysv">
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If they do not already exist,
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as the <systemitem class="username">root</systemitem> user, create a
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system user and group to handle the system message bus activity:
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</para>
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<screen role="root" revision="sysv"><userinput>groupadd -g 18 messagebus &&
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useradd -c "D-Bus Message Daemon User" -d /var/run/dbus \
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-u 18 -g messagebus -s /bin/false messagebus</userinput></screen>
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-->
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<para>
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Install <application>D-Bus</application> by running the following
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commands (you may wish to review the output from <command>./configure
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--help</command> first and add any desired parameters to the
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<command>configure</command> command shown below):
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</para>
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<screen revision="sysv"><userinput>./configure --prefix=/usr \
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--sysconfdir=/etc \
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--localstatedir=/var \
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--runstatedir=/run \
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--enable-user-session \
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--disable-doxygen-docs \
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--disable-xml-docs \
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--disable-static \
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--with-systemduserunitdir=no \
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--with-systemdsystemunitdir=no \
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--docdir=/usr/share/doc/dbus-&dbus-version; \
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--with-system-socket=/run/dbus/system_bus_socket &&
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make</userinput></screen>
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<screen revision="systemd"><userinput>./configure --prefix=/usr \
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--sysconfdir=/etc \
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--localstatedir=/var \
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--runstatedir=/run \
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--enable-user-session \
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--disable-doxygen-docs \
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--disable-xml-docs \
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--disable-static \
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--docdir=/usr/share/doc/dbus-&dbus-version; \
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--with-system-socket=/run/dbus/system_bus_socket &&
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make</userinput></screen>
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<para>
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See below for test instructions.
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</para>
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<!--
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<warning revision="systemd">
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<para>
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Installing the package will override all files installed by
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<application>D-Bus</application> in LFS. It is critical that
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nothing uses <application>D-Bus</application> libraries or
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programs during the installation. The best way to ensure that these
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libraries are not being used is to run the installation in rescue mode.
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To switch to rescue mode, run the following command as the
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<systemitem class="username">root</systemitem> user (from a TTY):
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</para>
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<screen role="root"><userinput>systemctl start rescue.target</userinput></screen>
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</warning>
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-->
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<para>
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Now, as the <systemitem class="username">root</systemitem> user:
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</para>
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<screen role="root"><userinput>make install</userinput></screen>
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<!-- FIXME: No longer needed with usr merge
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<para>
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The shared library needs to be moved to
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<filename class="directory">/lib</filename>, and as a result the
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<filename class="extension">.so</filename> file in
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<filename class="directory">/usr/lib</filename> will need to be
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recreated. Run the following command as the
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<systemitem class="username">root</systemitem> user:
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</para>
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<screen role="root"><userinput>mv -v /usr/lib/libdbus-1.so.* /lib &&
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ln -sfv ../../lib/$(readlink /usr/lib/libdbus-1.so) /usr/lib/libdbus-1.so</userinput></screen>
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-->
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<para>
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If you are using a DESTDIR install,
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<command>dbus-daemon-launch-helper</command> needs to be fixed
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afterwards. Issue, as <systemitem class="username">root</systemitem>
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user:
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</para>
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<screen role="root"><userinput>chown -v root:messagebus /usr/libexec/dbus-daemon-launch-helper &&
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chmod -v 4750 /usr/libexec/dbus-daemon-launch-helper</userinput></screen>
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<para revision="sysv">
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If you are still building your system in chroot or you did not start the
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daemon yet, but you want to compile some packages that require
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<application>D-Bus</application>, generate the
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<application>D-Bus</application> UUID to avoid warnings when compiling
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some packages with the following command as the
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<systemitem class="username">root</systemitem> user:
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</para>
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<screen role="root" revision="sysv"><userinput>dbus-uuidgen --ensure</userinput></screen>
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<para revision="sysv">
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If using <xref linkend="elogind"/>, create a symlink to the
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<filename>/var/lib/dbus/machine-id</filename> file:
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</para>
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<screen role="root" revision="sysv"><userinput>ln -sv /var/lib/dbus/machine-id /etc</userinput></screen>
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<!--
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<para revision="systemd">
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If not in chroot, at this point, you should reload the systemd daemon,
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and reenter multi-user mode with the following commands (as the
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<systemitem class="username">root</systemitem> user):
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</para>
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<screen role="root" revision="systemd"><userinput>systemctl daemon-reload
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systemctl start multi-user.target</userinput></screen>
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-->
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<para>
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The dbus tests cannot be run until after <xref linkend="dbus-glib"/> has
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been installed. They must be run as an unprivileged user from a local
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session with bus address. To run the standard tests issue
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<command>make check</command>.
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</para>
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<para>
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If you want to run the unit regression tests, configure requires
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additional parameters which expose additional functionality in the
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binaries that are not intended to be used in a production build of
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<application>D-Bus</application>. If you would like to run the tests,
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issue the following commands (for the tests, you don't need to build the
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docs):
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</para>
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<screen remap="test"><userinput>make distclean &&
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PYTHON=python3 ./configure --enable-tests \
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--enable-asserts \
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--disable-doxygen-docs \
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--disable-xml-docs &&
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make &&
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make check</userinput></screen>
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<para>
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There have been reports that the tests may fail if running inside a
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Midnight Commander shell. You may get out-of-memory error messages when
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running the tests. These are normal and can be safely ignored.
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</para>
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</sect2>
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<sect2 role="commands">
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<title>Command Explanations</title>
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<para>
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<parameter>--disable-doxygen-docs</parameter>: This switch disables
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doxygen documentation build and install, if you have
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<application>doxygen</application> installed. If
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<application>doxygen</application> is installed, and you wish to build
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them, remove this parameter.
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</para>
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<para>
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<parameter>--disable-xml-docs</parameter>: This switch disables html
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documentation build and install, if you have
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<application>xmlto</application> installed. If
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<application>xmlto</application> is installed, and you wish to build
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them, remove this parameter.
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</para>
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<xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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href="../../xincludes/static-libraries.xml"/>
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<para>
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<parameter>--enable-user-session</parameter>: This parameter enables
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per-user DBus sessions with
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<phrase revision="sysv"><application>elogind</application>.</phrase>
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<phrase revision="systemd"><application>systemd</application>.</phrase>
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</para>
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<para revision="sysv">
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<parameter>--with-systemd{user,system}unitdir=no</parameter>: These
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switches disable installation of systemd units on elogind based systems.
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</para>
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<para>
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<parameter>--with-system-pid-file=/run/dbus/pid</parameter>: This
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parameter specifies the location of the PID file.
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</para>
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<para>
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<parameter>--with-system-socket=/run/dbus/system_bus_socket</parameter>:
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This parameter specifies the location of the system bus socket.
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</para>
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<para>
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<parameter>--enable-tests</parameter>: Builds extra parts of the code to
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support all tests. Do not use on a production build.
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</para>
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<para>
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<option>--enable-embedded-tests</option>: Builds extra parts of the
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code to support only unit tests. Do not use on a production build.
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</para>
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<para>
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<parameter>--enable-asserts</parameter>: Enables debugging code to run
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assertions for statements normally assumed to be true. This prevents a
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warning that '<parameter>--enable-tests</parameter>' on its own is only
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useful for profiling and might not give true results for all tests, but
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adds its own NOTE that this should not be used in a production build.
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</para>
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</sect2>
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<sect2 role="configuration">
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<title>Configuring D-Bus</title>
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<sect3 id="dbus-config">
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<title>Config Files</title>
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<para>
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<filename>/etc/dbus-1/session.conf</filename>,
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<filename>/etc/dbus-1/system.conf</filename> and
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<filename>/etc/dbus-1/system.d/*</filename>
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</para>
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<indexterm zone="dbus dbus-config">
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<primary sortas="e-etc-dbus-1-session.conf">/etc/dbus-1/session.conf</primary>
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</indexterm>
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<indexterm zone="dbus dbus-config">
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<primary sortas="e-etc-dbus-1/system.conf">/etc/dbus-1/system.conf</primary>
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</indexterm>
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<indexterm zone="dbus dbus-config">
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<primary sortas="e-etc-dbus-1-system.d-star">/etc/dbus-1/system.d/*</primary>
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</indexterm>
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</sect3>
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<sect3 id="dbus-session-config" xreflabel="D-Bus custom services directory">
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<title>Configuration Information</title>
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<para>
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The configuration files listed above should probably not be
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modified. If changes are required, you should create
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<filename>/etc/dbus-1/session-local.conf</filename> and/or
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<filename>/etc/dbus-1/system-local.conf</filename> and make any
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desired changes to these files.
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</para>
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<para>
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If any packages install a
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<application>D-Bus</application> <filename>.service</filename>
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file outside of the standard <filename
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class="directory">/usr/share/dbus-1/services</filename> directory,
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that directory should be added to the local session configuration.
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For instance, <filename
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class="directory">/usr/local/share/dbus-1/services</filename> can
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be added by performing the following commands as the
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<systemitem class="username">root</systemitem> user:
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</para>
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<screen role="root"><userinput>cat > /etc/dbus-1/session-local.conf << "EOF"
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<literal><!DOCTYPE busconfig PUBLIC
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"-//freedesktop//DTD D-BUS Bus Configuration 1.0//EN"
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"http://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd">
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<busconfig>
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<!-- Search for .service files in /usr/local -->
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<servicedir>/usr/local/share/dbus-1/services</servicedir>
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</busconfig></literal>
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EOF</userinput></screen>
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</sect3>
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<sect3 id="dbus-session">
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<title>D-Bus Session Daemon</title>
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<para revision="sysv">
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To automatically start <command>dbus-daemon</command> when the
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system is rebooted, install the
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<filename>/etc/rc.d/init.d/dbus</filename> bootscript from the
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<xref linkend="bootscripts"/> package.
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</para>
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<indexterm zone="dbus dbus-session" revision="sysv">
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<primary sortas="f-dbus">dbus</primary>
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</indexterm>
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<screen role="root" revision="sysv"><userinput>make install-dbus</userinput></screen>
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<para revision="sysv">
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Note that this boot script only starts the system-wide
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<application>D-Bus</application> daemon. Each user requiring access to
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<application>D-Bus</application> services will also need to run a
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session daemon as well. There are many methods you can use to start a
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session daemon using the <command>dbus-launch</command> command. Review
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the <command>dbus-launch</command> man page for details about the
|
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available parameters and options. Here are some suggestions and
|
|
examples:
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</para>
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|
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<para revision="systemd">
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There are many methods you can use to start a session daemon
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using the <command>dbus-launch</command> command. Review the
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<command>dbus-launch</command> man page for details about the
|
|
available parameters and options. Here are some suggestions and
|
|
examples:
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|
</para>
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|
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<itemizedlist spacing="compact">
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|
<listitem>
|
|
<para>
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|
Add <command>dbus-launch</command> to the line in the
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<filename>~/.xinitrc</filename> file that starts your graphical
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desktop environment.
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|
</para>
|
|
</listitem>
|
|
<listitem>
|
|
<para>
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|
If you use <command>gdm</command> or some other display manager
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|
that calls the <filename>~/.xsession</filename> file, you can add
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<command>dbus-launch</command> to the line in your
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<filename>~/.xsession</filename> file that starts your graphical
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desktop environment. The syntax would be similar to the example in
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the <filename>~/.xinitrc</filename> file.
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</para>
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</listitem>
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<listitem>
|
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<para>
|
|
The examples shown previously use
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<command>dbus-launch</command> to specify a program to be run. This
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|
has the benefit (when also using the
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<parameter>--exit-with-session</parameter> parameter) of stopping the
|
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session daemon when the specified program is stopped. You can also
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|
start the session daemon in your system or personal startup scripts
|
|
by adding the following lines:
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</para>
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<screen role="nodump"><userinput><literal># Start the D-Bus session daemon
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eval `dbus-launch`
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export DBUS_SESSION_BUS_ADDRESS</literal></userinput></screen>
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|
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<para>
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This method will not stop the session daemon when you exit
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your shell, therefore you should add the following line to your
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<filename>~/.bash_logout</filename> file:
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|
</para>
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<screen role="nodump"><userinput><literal># Kill the D-Bus session daemon
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kill $DBUS_SESSION_BUS_PID</literal></userinput></screen>
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</listitem>
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|
|
<!-- KDM is no longer usable, SDDM is it's replacement
|
|
<listitem>
|
|
<para>
|
|
A hint has been written that provides ways to start scripts
|
|
using the KDM session manager of KDE. The concepts in this hint could
|
|
possibly be used with other session managers as well. The hint is
|
|
located at <ulink
|
|
url="&hints-root;/downloads/files/execute-session-scripts-using-kdm.txt"/>.
|
|
</para>
|
|
</listitem>
|
|
-->
|
|
|
|
</itemizedlist>
|
|
|
|
</sect3>
|
|
|
|
</sect2>
|
|
|
|
<sect2 role="content" revision="sysv">
|
|
<title>Contents</title>
|
|
|
|
<segmentedlist>
|
|
<segtitle>Installed Programs</segtitle>
|
|
<segtitle>Installed Library</segtitle>
|
|
<segtitle>Installed Directories</segtitle>
|
|
|
|
<seglistitem>
|
|
<seg>
|
|
dbus-cleanup-sockets, dbus-daemon, dbus-launch, dbus-monitor,
|
|
dbus-run-session, dbus-send, dbus-test-tool,
|
|
dbus-update-activation-environment, and dbus-uuidgen
|
|
</seg>
|
|
<seg>
|
|
libdbus-1.so
|
|
</seg>
|
|
<seg>
|
|
/etc/dbus-1,
|
|
/usr/{include,lib}/dbus-1.0,
|
|
/usr/lib/cmake/DBus1,
|
|
/usr/share/dbus-1,
|
|
/usr/share/xml/dbus-1,
|
|
/usr/share/doc/dbus-&dbus-version;, and
|
|
/var/{lib,run}/dbus
|
|
</seg>
|
|
</seglistitem>
|
|
</segmentedlist>
|
|
|
|
<variablelist>
|
|
<bridgehead renderas="sect3">Short Descriptions</bridgehead>
|
|
<?dbfo list-presentation="list"?>
|
|
<?dbhtml list-presentation="table"?>
|
|
|
|
<varlistentry id="dbus-cleanup-sockets">
|
|
<term><command>dbus-cleanup-sockets</command></term>
|
|
<listitem>
|
|
<para>
|
|
is used to clean up leftover sockets in a directory
|
|
</para>
|
|
<indexterm zone="dbus dbus-cleanup-sockets">
|
|
<primary sortas="b-dbus-cleanup-sockets">dbus-cleanup-sockets</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="dbus-daemon">
|
|
<term><command>dbus-daemon</command></term>
|
|
<listitem>
|
|
<para>
|
|
is the <application>D-Bus</application> message bus daemon
|
|
</para>
|
|
<indexterm zone="dbus dbus-daemon">
|
|
<primary sortas="b-dbus-daemon">dbus-daemon</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="dbus-launch">
|
|
<term><command>dbus-launch</command></term>
|
|
<listitem>
|
|
<para>
|
|
is used to start <command>dbus-daemon</command> from a shell
|
|
script. It would normally be called from a user's login
|
|
scripts
|
|
</para>
|
|
<indexterm zone="dbus dbus-launch">
|
|
<primary sortas="b-dbus-launch">dbus-launch</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="dbus-monitor">
|
|
<term><command>dbus-monitor</command></term>
|
|
<listitem>
|
|
<para>
|
|
is used to monitor messages going through a
|
|
<application>D-Bus</application> message bus
|
|
</para>
|
|
<indexterm zone="dbus dbus-monitor">
|
|
<primary sortas="b-dbus-monitor">dbus-monitor</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="dbus-run-session">
|
|
<term><command>dbus-run-session</command></term>
|
|
<listitem>
|
|
<para>
|
|
starts a process as a new <application>D-Bus</application> session
|
|
</para>
|
|
<indexterm zone="dbus dbus-run-session">
|
|
<primary sortas="b-dbus-run-session">dbus-run-session</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="dbus-send">
|
|
<term><command>dbus-send</command></term>
|
|
<listitem>
|
|
<para>
|
|
is used to send a message to a <application>D-Bus</application>
|
|
message bus
|
|
</para>
|
|
<indexterm zone="dbus dbus-send">
|
|
<primary sortas="b-dbus-send">dbus-send</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="dbus-test-tool">
|
|
<term><command>dbus-test-tool</command></term>
|
|
<listitem>
|
|
<para>
|
|
is a <application>D-Bus</application> traffic generator and test
|
|
tool; it is a multi-purpose tool for debugging and profiling
|
|
<application>D-Bus</application>
|
|
</para>
|
|
<indexterm zone="dbus dbus-test-tool">
|
|
<primary sortas="b-dbus-test-tool">dbus-test-tool</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="dbus-update-activation-environment">
|
|
<term><command>dbus-update-activation-environment</command></term>
|
|
<listitem>
|
|
<para>
|
|
is used to update the environment used for
|
|
<application>D-Bus</application> session services;
|
|
it updates the list of environment variables used by
|
|
<command>dbus-daemon --session</command> when it activates session
|
|
services without using systemd
|
|
</para>
|
|
<indexterm zone="dbus dbus-update-activation-environment">
|
|
<primary sortas="b-dbus-update-activation-environment">
|
|
dbus-update-activation-environment</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="dbus-uuidgen">
|
|
<term><command>dbus-uuidgen</command></term>
|
|
<listitem>
|
|
<para>
|
|
is used to generate a universally unique ID
|
|
</para>
|
|
<indexterm zone="dbus dbus-uuidgen">
|
|
<primary sortas="b-dbus-uuidgen">dbus-uuidgen</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="libdbus-1">
|
|
<term><filename class="libraryfile">libdbus-1.so</filename></term>
|
|
<listitem>
|
|
<para>
|
|
contains the API functions used by the
|
|
<application>D-Bus</application> message daemon.
|
|
<application>D-Bus</application> is first a library that provides
|
|
one-to-one communication between any two applications;
|
|
<command>dbus-daemon</command> is an application that uses this
|
|
library to implement a message bus daemon
|
|
</para>
|
|
<indexterm zone="dbus libdbus-1">
|
|
<primary sortas="c-libdbus-1">libdbus-1.so</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
</variablelist>
|
|
|
|
</sect2>
|
|
|
|
<sect2 role="content" revision="systemd">
|
|
<title>Contents</title>
|
|
|
|
<para>
|
|
A list of the installed files, along with their short
|
|
descriptions can be found at
|
|
<ulink url="&lfs-root;/chapter08/dbus.html#contents-dbus"/>.
|
|
</para>
|
|
|
|
</sect2>
|
|
|
|
</sect1>
|