ode>
          frontend while other threads are writing logs through this sink). This
          is the only sink frontend available in a single threaded environment. The
          example of use is as follows:
        </p>
<p>
</p>
<pre class="programlisting"><span class="keyword">enum</span> <span class="identifier">severity_level</span>
<span class="special">{</span>
    <span class="identifier">normal</span><span class="special">,</span>
    <span class="identifier">warning</span><span class="special">,<