An OCaml wrapper for the libevent API. The libevent API provides a
mechanism to execute a callback function when a specific event occurs on a
file descriptor or after a timeout has been reached. Furthermore, libevent
also support callbacks due to signals or regular timeouts.
Currently, libevent supports /dev/poll, kqueue(2), select(2), poll(2) and
epoll(4). It also has experimental support for real-time signals. The
internal event mechanism is completely independent of the exposed event
API, and a simple update of libevent can provide new functionality without
having to redesign the applications. As a result, Libevent allows for
portable application development and provides the most scalable event
notification mechanism available on an operating system.