sync.c12" href="sink_frontends.html#log.detailed.sink_frontends.async.c13"><img src="../../../../../../doc/src/images/callouts/4.png" alt="4" border="0"></a>
        <span class="special">&gt;</span>
    <span class="special">&gt;</span>
<span class="special">&gt;</span> <span class="identifier">sink_t</span><span class="special">;</span>

<span class="identifier">boost</span><span class="special">::</span><span class="identifier">shared_ptr</span><span class="special">&lt;</span> <span class="identifier">s