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.
