libevent

Libevent

libevent is an event notification library for developing high performance network servers. It provides APIs for event scheduling that allow callbacks when I/O events occur or after a time delay.
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event notification library network server

libevent: High Performance Network Server Event Library

Develop fast and scalable network servers with libevent, providing APIs for event scheduling and callback notifications for I/O events and time delays.

What is Libevent?

libevent is an open source event notification library that provides a mechanism to execute callbacks when events occur. It is optimized for high-performance networking servers that process many concurrent connections and I/O events.

Some key features of libevent include:

  • Support for sockets, timeouts, signals, and periodic events
  • An event-driven model that allows handling multiple events with minimal resource usage
  • APIs for scheduling events and executing callbacks when the events occur
  • Portability across various platforms like Windows, Linux, BSD variants, and more
  • Integration with various networking libraries/APIs like select, poll, epoll, kqueue, event ports

libevent is used by several well-known software projects including Memcached, Mozilla NSS, and OpenVPN. It helps build fast, efficient event-driven network applications that can process thousands of concurrent connections and scale well. The event-driven model and optimization for I/O operations makes it well-suited for servers and networking tools.

Libevent Features

Features

  1. Event notification APIs for network servers
  2. Support for sockets, timeouts, signals, and periodic events
  3. Abstraction of OS-specific event mechanisms
  4. High performance event dispatching
  5. Thread-safe and lock-free APIs

Pricing

  • Open Source

Pros

High performance and scalability

Portable across operating systems

Simplifies event-driven programming

Active open source community

Used by many popular applications and frameworks

Cons

Steep learning curve

Complex API

Requires understanding of event-driven architecture

Limited documentation and examples


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Top Development and Networking & Web Servers and other similar apps like Libevent

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