Thanks for the reply. but without EV_LOOPONCE , how could i make it not always wait the whole 1 sec?
i can put an loopbreak in all the possible registered events but that seems rather hacky. On Jun 24, 2013 5:44 AM, "Nick Mathewson" <ni...@freehaven.net> wrote: > On Mon, Jun 24, 2013 at 3:52 AM, 叶雨飞 <sunyuc...@gmail.com> wrote: > > Hi, > > > > I am trying to convert a select() based program into using libevent, but > i > > am having trouble to construct a way to do exactly like > > > > select() with a timeout of 1 second. > > > > basically I want to wait for as long as 1 second of possible events and > move > > on to do other stuff in while(1) loop. > > > > I tried : > > > > event_base_loopexit(g_event_base, &timeout); > > event_base_loop(g_event_base, EVLOOP_ONCE); > > > > > > But I found that after several successful event triggers, the loop became > > shorter and shorter, Eg. after one event succesffuly triggered, the loop > > actually ran only 0.5 seconds next time, next time it is roughly 0.25 > > seconds.The more events have triggered once, the faster the loop became. > > > > Any idea what to do? And If I was doing it wrong, what is the right way? > > EVLOOP_ONCE means "exit right after processing the first batch of > events", so you probably don't want that one. And the > event_base_loopexit() calls will start to stack up: each one creates a > new one-time event that makes the loop exit. > > Instead, I'd suggest making a one-second timer event with a callback > that uses event_base_loopexit(g_event_base, NULL) to exit the event > loop. > > yrs, > -- > Nick > *********************************************************************** > To unsubscribe, send an e-mail to majord...@freehaven.net with > unsubscribe libevent-users in the body. >
