libevent ☆

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Description:
Asynchronous event library

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Networking

Tags: networking library c async server

Install: brew install libevent

About:
Libevent is a high-performance, event-driven networking library designed for building scalable servers and applications. It provides a mechanism to execute a callback function when a specific event occurs on a file descriptor or after a timeout. Its core strength lies in its efficient demultiplexing of network connections, using the best available polling mechanism like epoll or kqueue.

Key Features:

Scalable event notification (epoll, kqueue, poll)
Asynchronous DNS resolution
Buffered I/O and HTTP server support
Multi-threading support

Use Cases:

Building high-performance network proxies and load balancers
Developing event-driven web servers and application backends
Creating custom networking daemons requiring non-blocking I/O

Alternatives:

libuv – libuv is the event loop behind Node.js, offering cross-platform async I/O with a different API style.
Boost.Asio – A C++ library providing a cross-platform C++ interface for network and low-level I/O programming.

Version History

Detected	Version	Rev	Change	Commit
Sep 10, 2025 6:36pm		1	VERSION_BUMP	d4bcd861