
thread.  Each thread has its own mailbox, which can asynchronously receive
messages. These messages are added to a queue, which has a configurable maximum
capacity according to the second optional argument passed to <code class="mendoza-code">thread/new</code>.
If unspecified, the mailbox will have an initial capacity of 10.
</p>
<pre class="mendoza-codeblock"><code data-language="janet">(<span class="mdzsyn-coresym">defn</span> <span class="mdzsyn-symbol">worker</span>
  [<span class="mdzsyn-symbol">paren