chored" id="val-poll"><a href="#val-poll" class="anchor"></a><code><span><span class="keyword">val</span> poll : <span><span><span>(<span class="type-var">'stdin</span>, <span class="type-var">'stdout</span>, <span class="type-var">'stderr</span>)</span> <a href="#type-t">t</a></span> <span class="arrow">&#45;&gt;</span></span> <span><a href="../Core/Exit/index.html#type-status">Exit.status</a> option</span></span></code></div><div class="spec-doc"><p>Find out if your process has finished executing.</p></di