finished" class="anchored"><td class="def field"><a href="#type-t.finished" class="anchor"></a><code>finished : <span>result:<span><span class="type-var">'b</span> option</span></span> <span>&#45;&gt;</span> <span class="type-var">'a</span> <span>&#45;&gt;</span> unit;</code></td><td class="doc"><p>Process pool calls <code>finished result:r x</code> when a worker finishes item <code>x</code>. result is None when the item was completed successfully and Some pname when it failed because it could not lock pnam