.
</p>
<p>When &rsquo;proc&rsquo; executes, &rsquo;await&rsquo; and &rsquo;resume&rsquo; will still be in use by
this procedure, so they may not be reused by &rsquo;proc&rsquo; (even though
&rsquo;proc&rsquo; runs in the event loop thread).
</p>
<p>This procedure calls event-post! in the event loop concerned.  This is
done in the same thread as that in which the event loop runs so it
cannot of itself be throttled.  However it may contribute to the
number of accumulated unexecuted tasks in the event loop and