 ready for reading, and apply resume (obtained from
a call to a-sync) to the return value of &rsquo;proc&rsquo;.  &rsquo;proc&rsquo; should take
two arguments, the first of which will be set by glib to the
g-io-channel object constructed for the watch and the second of which
will be set to the GIOCondition (&rsquo;in, &rsquo;hup or &rsquo;err) provided by glib
which caused the watch to activate.  It is intended to be called in a
waitable procedure invoked by a-sync.  The watch is multi-shot - it is
for the 