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<a name="Overview.of.AFB-DAEMON"></a>
<h1>Overview of AFB-DAEMON</h1>
<pre><code>version: 1
Date: 29 mai 2016
Author: José Bollo
</code></pre>
<p><ul>
<li><a href="#Overview.of.AFB-DAEMON">Overview of AFB-DAEMON</a>
<ul>
<li><a href="#Roles.of.afb-daemon">Roles of afb-daemon</a></li>
</ul>
</li>
</ul></p>
<a name="Roles.of.afb-daemon"></a>
<h2>Roles of afb-daemon</h2>
<p>The name <strong>afb-daemon</strong> stands for <em>Application
Framework Binder Daemon</em>. That is why afb-daemon
is also named <strong><em>the binder</em></strong>.</p>
<p><strong>Afb-daemon</strong> is in charge to bind one instance of
an application to the AGL framework and AGL system.</p>
<p>On the following figure, you can use a typical use
of afb-daemon:</p>
<pre><code>. . . . . . . . . . . . . . . . . . . . . . . . . .
. Isolated security context .
. .
. +------------------------------+ .
. | | .
. | A P P L I C A T I O N | .
. | | .
. +--------------+---------------+ .
. | .
. | .
. +-------------------+----------------------+ .
. | : | .
. | A F B - D A E M O N : PLUGINS | .
. | : | .
. +-------------------+----------------------+ .
. | .
. . . . . . . . . . . . | . . . . . . . . . . . . .
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v
AGL SYSTEM
</code></pre>
<p>The application and its companion binder run in secured and isolated
environment set for them. Applications are intended to access to AGL
system through the binder.</p>
<p>The binder afb-daemon serves multiple purposes:</p>
<ol>
<li><p>It acts as a gateway for the application to access the system;</p></li>
<li><p>It acts as an HTTP server for serving files to HTML5 applications;</p></li>
<li><p>It allows HTML5 applications to have native extensions subject
to security enforcement for accessing hardware ressources or
for speeding parts of algorithm.</p></li>
</ol>
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