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The libevent API executes a callback function when a specific event occurs on a file descriptor or after a timeout has been reached. It also supports callbacks due to signals or regular timeouts. It is meant to replace the asynchronous event loop found in event-driven network servers. 'libevent' currently 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 independent of the exposed event API, so a simple update of libevent provides new functionality without having to redesign applications. As a result, Libevent allows for portable application development and provides the most scalable event notification mechanism available on an operating system.


Download version 1.1 (beta)
released on 14 May 2005


Related Projects


LicenseVerified byVerified onNotes
BSD 3ClauseJanet Casey8 October 2004

Leaders and contributors

Niels Provos Maintainer

Resources and communication

Audience Resource type URI
Bug Tracking,Developer,Support E-mail

Software prerequisites

This entry (in part or in whole) was last reviewed on 17 May 2005.


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