I often use 0 second timer events to put something onto the event queue in a
friendly manner (ie. allow other items that were already there to be processed,
and get to my 'new work' when it's fair to).
Trying to set up a persistent 0 second timer doesn't work, though:
event_set(evq, -1, EV_PERSIST, my_callback, udata);
if (udata->evbase) {
event_base_set(udata->evbase, evq);
}
udata->tv.tv_sec = 0;
udata->tv.tv_usec = 0;
evtimer_add(evq, &(udata->tv));
If tv.tv_sec or tv.tv_usec is any positive value, everything works as I expect,
I get a persistent timer event. However, if they are both 0, the timer event
fires once, but never again.
Is this a known issue?
- jsd
