VF_DAEMONOPEN
while ((vinum_conf.flags & (VF_STOPPING | VF_DAEMONOPEN))
== (VF_STOPPING | VF_DAEMONOPEN)) { /* at least one daemon open, we're stopping */
vinum_conf.flags |= VF_DAEMONOPEN; /* we're open */
vinum_conf.flags &= ~VF_DAEMONOPEN; /* no longer open */