软件包：libevent-core-2.1-7t64（2.1.12-stable-8.1 以及其他的） [debports]

Asynchronous event notification library (core)

Libevent is an asynchronous event notification library that provides a mechanism to execute a callback function when a specific event occurs on a file descriptor or after a timeout has been reached.

It is meant to replace the asynchronous event loop found in event driven network servers. Currently, libevent supports /dev/poll, kqueue(2), event ports, select(2), poll(2) and epoll(4).

The libevent_core library includes event loops, timers, buffer code, and various small compatibility functions.

If you're writing software that only uses libevent's event loop, you should link against only the libevent_core library.

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