[Libevent-users] Faking EVLOOP_NO_EXIT_ON_EMPTY on earlier versions

[Philip Prindeville <philipp_subx@xxxxxxxxxxxxxxxxxxxxx>]

I'm working on a program (a Tacacs+ proxy) which, for now, has 2 threads 
one which listens to DBus requests (not using libevent, but I'll change 
that eventually) and another which manages TCP sockets (via the 
bufferevent stuff) inside an event_base_dispatch().

I'm on Debian 8 and have 2.0.5 installed... I don't have 
EVLOOP_NO_EXIT_ON_EMPTY available since that was introduced in 2.1.1.

Is there an easy way to get the same functionality without burning a lot 
of CPU with:

    while (1)
        event_base_dispatch(evbase);

Thanks,

-Philip

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