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<link title="Pa_lwt_log" rel="Chapter" href="Pa_lwt_log.html"><title>Lwt_engine.select_based</title>
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<h1>Class virtual <a href="type_Lwt_engine.select_based.html">Lwt_engine.select_based</a></h1>
<pre><span name="TYPEselect_based"><span class="keyword">class</span> <span class="keyword">virtual</span> select_based</span> : <code class="type"></code><code class="code"><span class="keyword">object</span></code> <a href="Lwt_engine.select_based-c.html">..</a> <code class="code"><span class="keyword">end</span></code></pre><div class="info">
Abstract class for engines based on a select-like function.<br>
</div>
<b>Inherits</b><ul>
<li><a href="Lwt_engine.t-c.html"><code class="code"><span class="constructor">Lwt_engine</span>.t</code></a></li>
</ul>
<hr width="100%">
<pre><span id="METHODselect"><span class="keyword">method</span> <span class="keyword">private</span> <span class="keyword">virtual</span> select</span> : <code class="type">Unix.file_descr list -><br> Unix.file_descr list -> float -> Unix.file_descr list * Unix.file_descr list</code></pre><div class="info">
<code class="code">select fds_r fds_w timeout</code> waits for either:
<p>
<ul>
<li>one of the file descriptor of <code class="code">fds_r</code> to become readable</li>
<li>one of the file descriptor of <code class="code">fds_w</code> to become writable</li>
<li>timeout to expire</li>
</ul>
and returns the list of readable file descriptor and the list
of writable file descriptors.<br>
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