 in which the event loop runs.
</p>
<p>Exceptions may propagate out of this procedure if they arise while
setting up (that is, before the first call to &rsquo;await&rsquo; is made), say
because a regular file is passed to this procedure, memory is
exhausted or a conversion error arises.  In addition, any write error
will cause a &rsquo;c-write-error exception to be thrown out of this
procedure.  With versions of this library before 0.13, &rsquo;c-write-error
exceptions arising after the first write would pr