libevent: Libevent ((Event Notification Library)
libevent:
libevent: The libevent API provides a mechanism to execute  a callback
libevent: function when a specific event occurs on a  file descriptor or
libevent: after a timeout has been reached. Furthermore, libevent also
libevent: support callbacks due to signals or regular timeouts. 
libevent:
libevent:
libevent:
libevent:
libevent: