What happens internally when event_base_dispatch( ) function is called? Are there any threads that are created which keep running until some signal to stop is received?
How does event_base_dispatch( ) work?
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event_base_dispatch()is a blocking call which executes your defined callbacks inside a loop in the thread that calls the function. It continues to run until there are no more registered events or you callevent_base_loopexit()/event_base_loopbreak().See http://www.wangafu.net/~nickm/libevent-book/Ref3_eventloop.html
It is equivalent to
event_base_loop(event_base, 0). After taking a quick look at the source code, I don't see any other threads created:https://github.com/libevent/libevent/blob/master/event.c#L1847