in loop, so that code in
other a-sync or compose-a-sync blocks can run.  The remainder of the
code after the call to await-glib-yield in the current a-sync or
compose-a-sync block will execute on the next iteration through the
loop.  It is intended to be called within a waitable procedure invoked
by a-sync (which supplies the &rsquo;await&rsquo; and &rsquo;resume&rsquo; arguments).  It&rsquo;s
effect is similar to calling await-glib-task with a task that does
nothing.
</p>
<p>This procedure must (like the a