Expose select-like interface for Sniffer class about libtins HOT 4 CLOSED

I think setting timeouts on pcap doesn't work at all on Linux. You can always get the fd and then do a select over it, which allows you to set a timeout on it. If you're using Windows, you can do the same by using pcap_getevent.

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Calling config.set_timeout() with different values did make a difference in my Ubuntu 15.04 environment.

I could use get_fd() and select() on it, but not together with sniff_loop(). What I had in mind was something along the lines of:

SnifferConfiguration config;
config.set_promisc_mode(true);
config.set_timeout(0);
config.set_reception_timeout(2000);

Sniffer sniffer("eth0", config);

do {
    // returns every two seconds
    keep_sniffing = sniffer->sniff_loop(make_sniffer_handler(handler, &Handler::handle));
} while (keep_running && keep_sniffing);

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Well, you can always use Sniffer::next_packet instead of sniff_loop. That way you could get packets until 2 seconds pass, while using select to timeout.

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Closing this as you should be able to have this behavior by using timeouts and/or select + Sniffer::get_fd.

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