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16018N/A<!ENTITY suncopy "Copyright (c) 2009 Sun Microsystems, Inc. All Rights Reserved.">

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16018N/A<?Pub Inc>

16018N/A<refentry id="libunique-10-3">

16018N/A<refmeta><refentrytitle>&cmd;</refentrytitle><manvolnum>3</manvolnum>

16018N/A<refmiscinfo class="date">27 Feb 2009</refmiscinfo>

16018N/A<refmiscinfo class="sectdesc">&man3;</refmiscinfo>

16018N/A<refmiscinfo class="software">&release;</refmiscinfo>

16018N/A<refmiscinfo class="arch">generic</refmiscinfo>

16018N/A<refmiscinfo class="copyright">&suncopy;</refmiscinfo>

16018N/A</refmeta>

16018N/A

16018N/A<indexterm><primary>&cmd;</primary></indexterm><indexterm><primary>A library for writing a single instance applications</primary></indexterm>

16018N/A<refnamediv id="libunique-10-3-name"><refname>&cmd;</refname>

16018N/A<refpurpose>A library for writing single instance applications</refpurpose></refnamediv>

16018N/A

16018N/A<refsect1 id="libunique-10-3-desc"><title>&desc-tt;</title>

16018N/A<para>

16021N/A<command>&cmd;</command> is a library for writing single instance applications.

16021N/AIf you launch a single instance application twice, the second instance will

16021N/Aexit quietly or will send a message to the running instance.

16018N/A</para>

16018N/A<para>

16021N/A<command>&cmd;</command> makes it easy to write these kind of applications, by

16021N/Aproviding a base class, taking care of all the IPC machinery needed to send

16021N/Amessages to a running instance, and also handling startup notification.

16018N/A</para>

16018N/A<para>

16021N/A<command>&cmd;</command> supports two IPC backends: bacon and dbus. When dbus

16021N/Ais used, the messages are transmitted through a D\-Bus private channel. When

16021N/Abacon is used, <command>&cmd;</command> uses PF_UNIX family

16021N/A<citerefentry><refentrytitle>socket</refentrytitle><manvolnum>3head</manvolnum></citerefentry>

16021N/Ato allow communications between processes on the same machine.

16018N/A</para>

16018N/A</refsect1>

16018N/A

16018N/A<refsect1 id="pkg-config-1-envr"><title>&envr-tt;</title>

16018N/A<para>See <citerefentry><refentrytitle>environ</refentrytitle><manvolnum>

16018N/A5</manvolnum></citerefentry> for descriptions of environment variables.</para>

16018N/A

16018N/A<variablelist termlength="narrow">

16018N/A<varlistentry>

16018N/A<term><envar>UNIQUE_BACKEND</envar></term>

16018N/A<listitem><para>

16021N/AThe default backend is dbus. User can override the default backend by setting

16021N/Athe UNIQUE_BACKEND environment variable with the name of the desired backend.

16018N/A</para>

16018N/A</listitem></varlistentry>

16018N/A</variablelist></refsect1>

16018N/A

16018N/A<refsect1 id="libunique-10-3-file"><title>&file-tt;</title>

16018N/A<para>The following files are used by this library:</para>

16018N/A<variablelist termlength="wholepage">

16018N/A<varlistentry><term><filename>/usr/lib/&cmd;.so</filename></term><listitem>

16018N/A<para>API shared library</para></listitem></varlistentry>

16018N/A<varlistentry><term><filename>/usr/share/gtk-doc/html/unique</filename></term><listitem>

16018N/A<para>Location of developer documentation</para></listitem></varlistentry>

16018N/A</variablelist></refsect1>

16018N/A

16018N/A<refsect1 id="libunique-10-3-attr"><title>&attr-tt;</title>

16018N/A<para>See <olink targetdocent="REFMAN5" localinfo="attributes-5"><citerefentry>

16018N/A<refentrytitle>attributes</refentrytitle><manvolnum>5</manvolnum></citerefentry></olink>

16018N/Afor descriptions of the following attributes:</para>

16018N/A<informaltable frame="all">

16018N/A<tgroup cols="2" colsep="1" rowsep="1"><colspec colname="COLSPEC0" colwidth="1*">

16018N/A<colspec colname="COLSPEC1" colwidth="1*">

16018N/A<thead>

16018N/A<row>

16018N/A<entry align="center" valign="middle">ATTRIBUTE TYPE</entry>

16018N/A<entry align="center" valign="middle">ATTRIBUTE VALUE</entry></row>

16018N/A</thead>

16018N/A<tbody>

16018N/A<row><entry><para>Availability</para></entry><entry><para>SUNWlibunique</para></entry></row>

16018N/A<row><entry colname="COLSPEC0"><para>Interface stability</para></entry><entry colname="COLSPEC1"><para>Volatile</para></entry></row>

16018N/A</tbody>

16018N/A</tgroup>

16018N/A</informaltable>

16018N/A</refsect1>

16018N/A<refsect1 id="libunique-10-3-also"><title>&also-tt;</title>

16018N/A<para>

16021N/A<citerefentry><refentrytitle>socket</refentrytitle><manvolnum>3head</manvolnum></citerefentry>,

16018N/A<citerefentry><refentrytitle>attributes</refentrytitle><manvolnum>5</manvolnum></citerefentry>,

16018N/A<citerefentry><refentrytitle>environ</refentrytitle><manvolnum>5</manvolnum></citerefentry>,

16021N/A<citerefentry><refentrytitle>gnome-interfaces</refentrytitle><manvolnum>5</manvolnum></citerefentry>

16018N/A</para>

16018N/A</refsect1>

16018N/A<refsect1 id="libunique-10-3-note"><title>&note-tt;</title>

16018N/A<para>Written by Halton Huo, Sun Microsystems Inc., 2009.

16018N/A</para>

16018N/A</refsect1>

16018N/A</refentry>