套件：libevent-2.1-7t64（2.1.12-stable-10 以及其他的） [debports]

Asynchronous event notification library

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).

For backward compatibility and to transition to "libevent_core only" or "libevent_core + libevent_extra", the libevent source package builds the libevent library that includes everything in libevent_core and libevent_extra.

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